Add basic main structure for policy-api

Define main pom xml and update to include main.
Add the main exception parameters rest
startstop classes. Add test cases. Modify comments

Issue-ID: POLICY-1066
Change-Id: I2e878a58eef4f021e3a9a991738194127edf4d16
Signed-off-by: krisjinka <kris.jinka@samsung.com>
Signed-off-by: krishnajinka <kris.jinka@samsung.com>

30 files changed, 2129 insertions, 25 deletions

diff --git a/.gitignore b/.gitignore
index 236c0b3b..a949ed33 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 target
 .metadata/
 /bin/
+.idea
diff --git a/main/pom.xml b/main/pom.xml
new file mode 100644
index 00000000..c0a75907
--- /dev/null
+++ b/main/pom.xml
@@ -0,0 +1,86 @@
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2018 Ericsson. All rights reserved.
+   Modified Copyright (C) 2018 Samsung Electronics Co., Ltd.
+  ================================================================================
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  SPDX-License-Identifier: Apache-2.0
+  ============LICENSE_END=========================================================
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.policy.api</groupId>
+        <artifactId>policy-api</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>main</artifactId>
+
+    <name>${project.artifactId}</name>
+    <description>The main module of Policy Api that handles startup, lifecycle management, and parameters.</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>capabilities</artifactId>
+            <version>${policy.common.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>policy-endpoints</artifactId>
+            <version>${policy.common.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-cli</groupId>
+            <artifactId>commons-cli</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>common-parameters</artifactId>
+            <version>${policy.common.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>ONAP-Logging</artifactId>
+            <version>${policy.common.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <resources>
+            <!-- Output the version of the api service -->
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+                <includes>
+                    <include>**/version.txt</include>
+                </includes>
+            </resource>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>false</filtering>
+                <excludes>
+                    <exclude>**/version.txt</exclude>
+                </excludes>
+            </resource>
+        </resources>
+    </build>
+
+</project>
diff --git a/main/src/main/java/org/onap/policy/api/main/PolicyApiException.java b/main/src/main/java/org/onap/policy/api/main/PolicyApiException.java
new file mode 100644
index 00000000..8dedc8ad
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/PolicyApiException.java
@@ -0,0 +1,47 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main;
+
+/**
+ * This exception will be called if an error occurs in policy api external service.
+ */
+public class PolicyApiException extends Exception {
+    private static final long serialVersionUID = -8507246953751956974L;
+
+    /**
+     * Instantiates a new policy api exception with a message.
+     *
+     * @param message the message
+     */
+    public PolicyApiException(final String message) {
+        super(message);
+    }
+
+    /**
+     * Instantiates a new policy api exception with a message and a caused by exception.
+     *
+     * @param message the message
+     * @param exp the exception that caused this exception to be thrown
+     */
+    public PolicyApiException(final String message, final Exception exp) {
+        super(message, exp);
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/PolicyApiRuntimeException.java b/main/src/main/java/org/onap/policy/api/main/PolicyApiRuntimeException.java
new file mode 100644
index 00000000..a9ec07db
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/PolicyApiRuntimeException.java
@@ -0,0 +1,47 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main;
+
+/**
+ * This runtime exception will be called if a runtime error occurs when using policy api.
+ */
+public class PolicyApiRuntimeException extends RuntimeException {
+    private static final long serialVersionUID = -8507246953751956974L;
+
+    /**
+     * Instantiates a new policy api runtime exception with a message.
+     *
+     * @param message the message
+     */
+    public PolicyApiRuntimeException(final String message) {
+        super(message);
+    }
+
+    /**
+     * Instantiates a new policy api runtime exception with a message and a caused by exception.
+     *
+     * @param message the message
+     * @param exp the exception that caused this exception to be thrown
+     */
+    public PolicyApiRuntimeException(final String message, final Exception exp) {
+        super(message, exp);
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/parameters/ApiParameterGroup.java b/main/src/main/java/org/onap/policy/api/main/parameters/ApiParameterGroup.java
new file mode 100644
index 00000000..1b149d03
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/parameters/ApiParameterGroup.java
@@ -0,0 +1,94 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.parameters;
+
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.common.utils.validation.ParameterValidationUtils;
+
+/**
+ * Class to hold all parameters needed for Api component.
+ *
+ */
+public class ApiParameterGroup implements ParameterGroup {
+    private String name;
+    private RestServerParameters restServerParameters;
+
+    /**
+     * Create the api parameter group.
+     *
+     * @param name the parameter group name
+     */
+    public ApiParameterGroup(final String name, final RestServerParameters restServerParameters) {
+        this.name = name;
+        this.restServerParameters = restServerParameters;
+    }
+
+    /**
+     * Return the name of this parameter group instance.
+     *
+     * @return name the parameter group name
+     */
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Set the name of this parameter group instance.
+     *
+     * @param name the parameter group name
+     */
+    @Override
+    public void setName(String name) {
+        this.name=name;
+    }
+
+    /**
+     * Return the restServerParameters of this parameter group instance.
+     *
+     * @return the restServerParameters
+     */
+    public RestServerParameters getRestServerParameters() {
+        return restServerParameters;
+    }
+
+    /**
+     * Validate the parameter group.
+     *
+     * @return the result of the validation
+     */
+    @Override
+    public GroupValidationResult validate() {
+        final GroupValidationResult validationResult = new GroupValidationResult(this);
+        if (!ParameterValidationUtils.validateStringParameter(name)) {
+            validationResult.setResult("name", ValidationStatus.INVALID, "must be a non-blank string");
+        }
+        if (restServerParameters == null) {
+            validationResult.setResult("restServerParameters", ValidationStatus.INVALID,
+                    "must have restServerParameters to configure api rest server");
+        } else {
+            validationResult.setResult("restServerParameters", restServerParameters.validate());
+        }
+        return validationResult;
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/parameters/ApiParameterHandler.java b/main/src/main/java/org/onap/policy/api/main/parameters/ApiParameterHandler.java
new file mode 100644
index 00000000..4cee10a1
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/parameters/ApiParameterHandler.java
@@ -0,0 +1,83 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.parameters;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.startstop.ApiCommandLineArguments;
+
+import java.io.FileReader;
+
+/**
+ * This class handles reading, parsing and validating of policy api parameters from JSON files.
+ */
+public class ApiParameterHandler {
+    private static final Logger LOGGER = FlexLogger.getLogger(ApiParameterHandler.class);
+
+    /**
+     * Read the parameters from the parameter file.
+     *
+     * @param arguments the arguments passed to policy api
+     * @return the parameters read from the configuration file
+     * @throws PolicyApiException on parameter exceptions
+     */
+    public ApiParameterGroup getParameters(final ApiCommandLineArguments arguments)
+            throws PolicyApiException {
+        ApiParameterGroup apiParameterGroup = null;
+
+        // Read the parameters
+        try {
+            // Read the parameters from JSON using Gson
+            final Gson gson = new GsonBuilder().create();
+            apiParameterGroup = gson.fromJson(new FileReader(arguments.getFullConfigurationFilePath()),
+                    ApiParameterGroup.class);
+        } catch (final Exception e) {
+            final String errorMessage = "error reading parameters from \"" + arguments.getConfigurationFilePath()
+                    + "\"\n" + "(" + e.getClass().getSimpleName() + "):" + e.getMessage();
+            LOGGER.error(errorMessage, e);
+            throw new PolicyApiException(errorMessage, e);
+        }
+
+        // The JSON processing returns null if there is an empty file
+        if (apiParameterGroup == null) {
+            final String errorMessage = "no parameters found in \"" + arguments.getConfigurationFilePath() + "\"";
+            LOGGER.error(errorMessage);
+            throw new PolicyApiException(errorMessage);
+        }
+
+        // validate the parameters
+        final GroupValidationResult validationResult = apiParameterGroup.validate();
+        if (!validationResult.isValid()) {
+            String returnMessage =
+                    "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
+            returnMessage += validationResult.getResult();
+
+            LOGGER.error(returnMessage);
+            throw new PolicyApiException(returnMessage);
+        }
+
+        return apiParameterGroup;
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/parameters/RestServerParameters.java b/main/src/main/java/org/onap/policy/api/main/parameters/RestServerParameters.java
new file mode 100644
index 00000000..33ecff37
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/parameters/RestServerParameters.java
@@ -0,0 +1,136 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.parameters;
+
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.common.utils.validation.ParameterValidationUtils;
+
+/**
+ * Class to hold all parameters needed for api rest server.
+ *
+ */
+public class RestServerParameters implements ParameterGroup {
+    private String name;
+    private String host;
+    private int port;
+    private String userName;
+    private String password;
+
+    /**
+     * Constructor for instantiating RestServerParameters.
+     *
+     * @param host the host name
+     * @param port the port
+     * @param userName the user name
+     * @param password the password
+     */
+    public RestServerParameters(final String host, final int port, final String userName, final String password) {
+        super();
+        this.host = host;
+        this.port = port;
+        this.userName = userName;
+        this.password = password;
+    }
+
+    /**
+     * Return the name of this RestServerParameters instance.
+     *
+     * @return name the name of this RestServerParameters
+     */
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Return the host of this RestServerParameters instance.
+     *
+     * @return the host
+     */
+    public String getHost() {
+        return host;
+    }
+
+    /**
+     * Return the port of this RestServerParameters instance.
+     *
+     * @return the port
+     */
+    public int getPort() {
+        return port;
+    }
+
+    /**
+     * Return the user name of this RestServerParameters instance.
+     *
+     * @return the userName
+     */
+    public String getUserName() {
+        return userName;
+    }
+
+    /**
+     * Return the password of this RestServerParameters instance.
+     *
+     * @return the password
+     */
+    public String getPassword() {
+        return password;
+    }
+
+    /**
+     * Set the name of this RestServerParameters instance.
+     *
+     * @param name the name to set
+     */
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    /**
+     * Validate the rest server parameters.
+     *
+     * @return the result of the validation
+     */
+    @Override
+    public GroupValidationResult validate() {
+        final GroupValidationResult validationResult = new GroupValidationResult(this);
+        if (!ParameterValidationUtils.validateStringParameter(host)) {
+            validationResult.setResult("host", ValidationStatus.INVALID,
+                    "must be a non-blank string containing hostname/ipaddress of the api rest server");
+        }
+        if (!ParameterValidationUtils.validateStringParameter(userName)) {
+            validationResult.setResult("userName", ValidationStatus.INVALID,
+                    "must be a non-blank string containing userName for api rest server credentials");
+        }
+        if (!ParameterValidationUtils.validateStringParameter(password)) {
+            validationResult.setResult("password", ValidationStatus.INVALID,
+                    "must be a non-blank string containing password for api rest server credentials");
+        }
+        if (!ParameterValidationUtils.validateIntParameter(port)) {
+            validationResult.setResult("port", ValidationStatus.INVALID,
+                    "must be a positive integer containing port of the api rest server");
+        }
+        return validationResult;
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/rest/ApiRestController.java b/main/src/main/java/org/onap/policy/api/main/rest/ApiRestController.java
new file mode 100644
index 00000000..1dd01a32
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/rest/ApiRestController.java
@@ -0,0 +1,58 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.rest;
+
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.Info;
+import io.swagger.annotations.SwaggerDefinition;
+import io.swagger.annotations.Tag;
+import org.onap.policy.common.endpoints.report.HealthCheckReport;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+/**
+ * Class to provide api REST services.
+ *
+ */
+@Path("/")
+@Api
+@Produces(MediaType.APPLICATION_JSON)
+@SwaggerDefinition(
+        info = @Info(description = "Policy Api Service", version = "v1.0", title = "Policy Api"),
+        consumes = { MediaType.APPLICATION_JSON }, produces = { MediaType.APPLICATION_JSON },
+        schemes = { SwaggerDefinition.Scheme.HTTP },
+        tags = { @Tag(name = "policy-api", description = "Policy Api Service Operations") })
+public class ApiRestController {
+
+    @GET
+    @Path("healthcheck")
+    @Produces(MediaType.APPLICATION_JSON)
+    @ApiOperation(value = "Perform a system healthcheck",
+            notes = "Provides healthy status of the Policy Api component", response = HealthCheckReport.class)
+    public Response healthcheck() {
+        return Response.status(Response.Status.OK).entity(new HealthCheckProvider().performHealthCheck()).build();
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/rest/ApiRestServer.java b/main/src/main/java/org/onap/policy/api/main/rest/ApiRestServer.java
new file mode 100644
index 00000000..1050dbf6
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/rest/ApiRestServer.java
@@ -0,0 +1,139 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.rest;
+
+import org.onap.policy.common.capabilities.Startable;
+import org.onap.policy.common.endpoints.http.server.HttpServletServer;
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.api.main.parameters.RestServerParameters;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+
+/**
+ * Class to manage life cycle of api rest server.
+ *
+ */
+public class ApiRestServer implements Startable {
+
+    private static final String SEPARATOR = ".";
+    private static final String HTTP_SERVER_SERVICES = "http.server.services";
+    private static final Logger LOGGER = FlexLogger.getLogger(ApiRestServer.class);
+
+    private List<HttpServletServer> servers = new ArrayList<>();
+
+    private RestServerParameters restServerParameters;
+
+    /**
+     * Constructor for instantiating ApiRestServer.
+     *
+     * @param restServerParameters the rest server parameters
+     */
+    public ApiRestServer(final RestServerParameters restServerParameters) {
+        this.restServerParameters = restServerParameters;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean start() {
+        try {
+            servers = HttpServletServer.factory.build(getServerProperties());
+            for (final HttpServletServer server : servers) {
+                server.start();
+            }
+        } catch (final Exception exp) {
+            LOGGER.error("Failed to start api http server", exp);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Creates the server properties object using restServerParameters.
+     *
+     * @return the properties object
+     */
+    private Properties getServerProperties() {
+        final Properties props = new Properties();
+        props.setProperty(HTTP_SERVER_SERVICES, restServerParameters.getName());
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".host",
+                restServerParameters.getHost());
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".port",
+                Integer.toString(restServerParameters.getPort()));
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".restClasses",
+                ApiRestController.class.getCanonicalName());
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".managed", "false");
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".swagger", "true");
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".userName",
+                restServerParameters.getUserName());
+        props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".password",
+                restServerParameters.getPassword());
+        return props;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean stop() {
+        for (final HttpServletServer server : servers) {
+            try {
+                server.stop();
+            } catch (final Exception exp) {
+                LOGGER.error("Failed to stop api http server", exp);
+            }
+        }
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void shutdown() {
+        stop();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isAlive() {
+        return !servers.isEmpty();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String toString() {
+        final StringBuilder builder = new StringBuilder();
+        builder.append("ApiRestServer [servers=");
+        builder.append(servers);
+        builder.append("]");
+        return builder.toString();
+    }
+
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/rest/HealthCheckProvider.java b/main/src/main/java/org/onap/policy/api/main/rest/HealthCheckProvider.java
new file mode 100644
index 00000000..33eda9dc
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/rest/HealthCheckProvider.java
@@ -0,0 +1,51 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.rest;
+
+import org.onap.policy.common.endpoints.report.HealthCheckReport;
+import org.onap.policy.api.main.startstop.ApiActivator;
+
+/**
+ * Class to fetch health check of api service.
+ *
+ */
+public class HealthCheckProvider {
+
+    private static final String NOT_ALIVE = "not alive";
+    private static final String ALIVE = "alive";
+    private static final String URL = "self";
+    private static final String NAME = "Policy API";
+
+    /**
+     * Performs the health check of api service.
+     *
+     * @return Report containing health check status
+     */
+    public HealthCheckReport performHealthCheck() {
+        final HealthCheckReport report = new HealthCheckReport();
+        report.setName(NAME);
+        report.setUrl(URL);
+        report.setHealthy(ApiActivator.isAlive());
+        report.setCode(ApiActivator.isAlive() ? 200 : 500);
+        report.setMessage(ApiActivator.isAlive() ? ALIVE : NOT_ALIVE);
+        return report;
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/startstop/ApiActivator.java b/main/src/main/java/org/onap/policy/api/main/startstop/ApiActivator.java
new file mode 100644
index 00000000..2173ef3a
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/startstop/ApiActivator.java
@@ -0,0 +1,144 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.startstop;
+
+import org.onap.policy.api.main.rest.ApiRestServer;
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.common.parameters.ParameterService;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.parameters.ApiParameterGroup;
+
+/**
+ * This class wraps a distributor so that it can be activated as a complete service together with all its api
+ * and forwarding handlers.
+ */
+public class ApiActivator {
+    // The logger for this class
+    private static final Logger LOGGER = FlexLogger.getLogger(ApiActivator.class);
+
+    // The parameters of this policy api activator
+    private final ApiParameterGroup apiParameterGroup;
+
+    private static boolean alive = false;
+
+    private ApiRestServer restServer;
+
+    /**
+     * Instantiate the activator for policy api as a complete service.
+     *
+     * @param apiParameterGroup the parameters for the api service
+     */
+    public ApiActivator(final ApiParameterGroup apiParameterGroup) {
+        this.apiParameterGroup = apiParameterGroup;
+    }
+
+    /**
+     * Initialize api as a complete service.
+     *
+     * @throws PolicyApiException on errors in initializing the service
+     */
+    @SuppressWarnings("unchecked")
+    public void initialize() throws PolicyApiException {
+        LOGGER.debug("Policy api starting as a service . . .");
+        startApiRestServer();
+        registerToParameterService(apiParameterGroup);
+        ApiActivator.setAlive(true);
+        LOGGER.debug("Policy api started as a service");
+    }
+
+    /**
+     * Starts the api rest server using configuration parameters.
+     *
+     * @throws PolicyApiException if server start fails
+     */
+    private void startApiRestServer() throws PolicyApiException {
+        apiParameterGroup.getRestServerParameters().setName(apiParameterGroup.getName());
+        restServer = new ApiRestServer(apiParameterGroup.getRestServerParameters());
+        if (!restServer.start()) {
+            throw new PolicyApiException(
+                    "Failed to start api rest server. Check log for more details...");
+        }
+    }
+
+    /**
+     * Terminate policy api.
+     *
+     * @throws PolicyApiException on termination errors
+     */
+    public void terminate() throws PolicyApiException {
+        try {
+            deregisterToParameterService(apiParameterGroup);
+            ApiActivator.setAlive(false);
+
+            // Stop the api rest server
+            restServer.stop();
+        } catch (final Exception exp) {
+            LOGGER.error("Policy api service termination failed", exp);
+            throw new PolicyApiException(exp.getMessage(), exp);
+        }
+    }
+
+    /**
+     * Get the parameters used by the activator.
+     *
+     * @return the parameters of the activator
+     */
+    public ApiParameterGroup getParameterGroup() {
+        return apiParameterGroup;
+    }
+
+    /**
+     * Method to register the parameters to Common Parameter Service.
+     *
+     * @param apiParameterGroup the api parameter group
+     */
+    public void registerToParameterService(final ApiParameterGroup apiParameterGroup) {
+        ParameterService.register(apiParameterGroup);
+    }
+
+    /**
+     * Method to deregister the parameters from Common Parameter Service.
+     *
+     * @param apiParameterGroup the api parameter group
+     */
+    public void deregisterToParameterService(final ApiParameterGroup apiParameterGroup) {
+        ParameterService.deregister(apiParameterGroup.getName());
+    }
+
+    /**
+     * Returns the alive status of api service.
+     *
+     * @return the alive
+     */
+    public static boolean isAlive() {
+        return alive;
+    }
+
+    /**
+     * Change the alive status of api service.
+     *
+     * @param status the status
+     */
+    public static void setAlive(final boolean status) {
+        alive = status;
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/startstop/ApiCommandLineArguments.java b/main/src/main/java/org/onap/policy/api/main/startstop/ApiCommandLineArguments.java
new file mode 100644
index 00000000..4306ef30
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/startstop/ApiCommandLineArguments.java
@@ -0,0 +1,246 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.startstop;
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.PolicyApiRuntimeException;
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.URL;
+import java.util.Arrays;
+
+/**
+ * This class reads and handles command line parameters for the policy api main program.
+ */
+public class ApiCommandLineArguments {
+    private static final String FILE_MESSAGE_PREAMBLE = " file \"";
+    private static final int HELP_LINE_LENGTH = 120;
+
+    // Apache Commons CLI options
+    private final Options options;
+
+    // The command line options
+    private String configurationFilePath = null;
+
+    /**
+     * Construct the options for the CLI editor.
+     */
+    public ApiCommandLineArguments() {
+        //@formatter:off
+        options = new Options();
+        options.addOption(Option.builder("h")
+                .longOpt("help")
+                .desc("outputs the usage of this command")
+                .required(false)
+                .type(Boolean.class)
+                .build());
+        options.addOption(Option.builder("v")
+                .longOpt("version")
+                .desc("outputs the version of policy api")
+                .required(false)
+                .type(Boolean.class)
+                .build());
+        options.addOption(Option.builder("c")
+                .longOpt("config-file")
+                .desc("the full path to the configuration file to use, "
+                        + "the configuration file must be a Json file containing the policy api parameters")
+                .hasArg()
+                .argName("CONFIG_FILE")
+                .required(false)
+                .type(String.class)
+                .build());
+        //@formatter:on
+    }
+
+    /**
+     * Construct the options for the CLI editor and parse in the given arguments.
+     *
+     * @param args The command line arguments
+     */
+    public ApiCommandLineArguments(final String[] args) {
+        // Set up the options with the default constructor
+        this();
+
+        // Parse the arguments
+        try {
+            parse(args);
+        } catch (final PolicyApiException e) {
+            throw new PolicyApiRuntimeException("parse error on policy api parameters", e);
+        }
+    }
+
+    /**
+     * Parse the command line options.
+     *
+     * @param args The command line arguments
+     * @return a string with a message for help and version, or null if there is no message
+     * @throws PolicyApiException on command argument errors
+     */
+    public String parse(final String[] args) throws PolicyApiException {
+        // Clear all our arguments
+        setConfigurationFilePath(null);
+
+        CommandLine commandLine = null;
+        try {
+            commandLine = new DefaultParser().parse(options, args);
+        } catch (final ParseException e) {
+            throw new PolicyApiException("invalid command line arguments specified : " + e.getMessage());
+        }
+
+        // Arguments left over after Commons CLI does its stuff
+        final String[] remainingArgs = commandLine.getArgs();
+
+        if (remainingArgs.length > 0 && commandLine.hasOption('c') || remainingArgs.length > 0) {
+            throw new PolicyApiException(
+                    "too many command line arguments specified : " + Arrays.toString(args));
+        }
+
+        if (remainingArgs.length == 1) {
+            configurationFilePath = remainingArgs[0];
+        }
+
+        if (commandLine.hasOption('h')) {
+            return help(Main.class.getCanonicalName());
+        }
+
+        if (commandLine.hasOption('v')) {
+            return version();
+        }
+
+        if (commandLine.hasOption('c')) {
+            setConfigurationFilePath(commandLine.getOptionValue('c'));
+        }
+
+        return null;
+    }
+
+    /**
+     * Validate the command line options.
+     *
+     * @throws PolicyApiException on command argument validation errors
+     */
+    public void validate() throws PolicyApiException {
+        validateReadableFile("policy api configuration", configurationFilePath);
+    }
+
+    /**
+     * Print version information for policy api.
+     *
+     * @return the version string
+     */
+    public String version() {
+        return ResourceUtils.getResourceAsString("version.txt");
+    }
+
+    /**
+     * Print help information for policy api.
+     *
+     * @param mainClassName the main class name
+     * @return the help string
+     */
+    public String help(final String mainClassName) {
+        final HelpFormatter helpFormatter = new HelpFormatter();
+        final StringWriter stringWriter = new StringWriter();
+        final PrintWriter printWriter = new PrintWriter(stringWriter);
+
+        helpFormatter.printHelp(printWriter, HELP_LINE_LENGTH, mainClassName + " [options...]", "options", options, 0,
+                0, "");
+
+        return stringWriter.toString();
+    }
+
+    /**
+     * Gets the configuration file path.
+     *
+     * @return the configuration file path
+     */
+    public String getConfigurationFilePath() {
+        return configurationFilePath;
+    }
+
+    /**
+     * Gets the full expanded configuration file path.
+     *
+     * @return the configuration file path
+     */
+    public String getFullConfigurationFilePath() {
+        return ResourceUtils.getFilePath4Resource(getConfigurationFilePath());
+    }
+
+    /**
+     * Sets the configuration file path.
+     *
+     * @param configurationFilePath the configuration file path
+     */
+    public void setConfigurationFilePath(final String configurationFilePath) {
+        this.configurationFilePath = configurationFilePath;
+
+    }
+
+    /**
+     * Check set configuration file path.
+     *
+     * @return true, if check set configuration file path
+     */
+    public boolean checkSetConfigurationFilePath() {
+        return configurationFilePath != null && configurationFilePath.length() > 0;
+    }
+
+    /**
+     * Validate readable file.
+     *
+     * @param fileTag the file tag
+     * @param fileName the file name
+     * @throws PolicyApiException on the file name passed as a parameter
+     */
+    private void validateReadableFile(final String fileTag, final String fileName) throws PolicyApiException {
+        if (fileName == null || fileName.length() == 0) {
+            throw new PolicyApiException(fileTag + " file was not specified as an argument");
+        }
+
+        // The file name refers to a resource on the local file system
+        final URL fileUrl = ResourceUtils.getUrl4Resource(fileName);
+        if (fileUrl == null) {
+            throw new PolicyApiException(fileTag + FILE_MESSAGE_PREAMBLE + fileName + "\" does not exist");
+        }
+
+        final File theFile = new File(fileUrl.getPath());
+        if (!theFile.exists()) {
+            throw new PolicyApiException(fileTag + FILE_MESSAGE_PREAMBLE + fileName + "\" does not exist");
+        }
+        if (!theFile.isFile()) {
+            throw new PolicyApiException(
+                    fileTag + FILE_MESSAGE_PREAMBLE + fileName + "\" is not a normal file");
+        }
+        if (!theFile.canRead()) {
+            throw new PolicyApiException(fileTag + FILE_MESSAGE_PREAMBLE + fileName + "\" is ureadable");
+        }
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/api/main/startstop/Main.java b/main/src/main/java/org/onap/policy/api/main/startstop/Main.java
new file mode 100644
index 00000000..a533bed5
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/api/main/startstop/Main.java
@@ -0,0 +1,148 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.startstop;
+
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.api.main.parameters.ApiParameterGroup;
+import org.onap.policy.api.main.parameters.ApiParameterHandler;
+
+import java.util.Arrays;
+
+/**
+ * This class initiates ONAP Policy Framework policy api.
+ *
+ */
+public class Main {
+    private static final Logger LOGGER = FlexLogger.getLogger(Main.class);
+
+    // The policy api Activator that activates the policy api service
+    private ApiActivator activator;
+
+    // The parameters read in from JSON
+    private ApiParameterGroup parameterGroup;
+
+    /**
+     * Instantiates the policy api service.
+     *
+     * @param args the command line arguments
+     */
+    public Main(final String[] args) {
+        final String argumentString = Arrays.toString(args);
+        LOGGER.info("Starting policy api service with arguments - " + argumentString);
+
+        // Check the arguments
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        try {
+            // The arguments return a string if there is a message to print and we should exit
+            final String argumentMessage = arguments.parse(args);
+            if (argumentMessage != null) {
+                LOGGER.info(argumentMessage);
+                return;
+            }
+
+            // Validate that the arguments are sane
+            arguments.validate();
+        } catch (final PolicyApiException e) {
+            LOGGER.error("start of policy api service failed", e);
+            return;
+        }
+
+        // Read the parameters
+        try {
+            parameterGroup = new ApiParameterHandler().getParameters(arguments);
+        } catch (final Exception e) {
+            LOGGER.error("start of policy api service failed", e);
+            return;
+        }
+
+        // Now, create the activator for the policy api service
+        activator = new ApiActivator(parameterGroup);
+
+        // Start the activator
+        try {
+            activator.initialize();
+        } catch (final PolicyApiException e) {
+            LOGGER.error("start of policy api service failed, used parameters are " + Arrays.toString(args),
+                    e);
+            return;
+        }
+
+        // Add a shutdown hook to shut everything down in an orderly manner
+        Runtime.getRuntime().addShutdownHook(new PolicyApiShutdownHookClass());
+        LOGGER.info("Started policy api service");
+    }
+
+    /**
+     * Get the parameters specified in JSON.
+     *
+     * @return the parameters
+     */
+    public ApiParameterGroup getParameters() {
+        return parameterGroup;
+    }
+
+    /**
+     * Shut down Execution.
+     *
+     * @throws PolicyApiException on shutdown errors
+     */
+    public void shutdown() throws PolicyApiException {
+        // clear the parameterGroup variable
+        parameterGroup = null;
+
+        // clear the api activator
+        if (activator != null) {
+            activator.terminate();
+        }
+    }
+
+    /**
+     * The Class PolicyApiShutdownHookClass terminates the policy api service when its run method is
+     * called.
+     */
+    private class PolicyApiShutdownHookClass extends Thread {
+        /*
+         * (non-Javadoc)
+         *
+         * @see java.lang.Runnable#run()
+         */
+        @Override
+        public void run() {
+            try {
+                // Shutdown the policy api service and wait for everything to stop
+                activator.terminate();
+            } catch (final PolicyApiException e) {
+                LOGGER.warn("error occured during shut down of the policy api service", e);
+            }
+        }
+    }
+
+    /**
+     * The main method.
+     *
+     * @param args the arguments
+     */
+    public static void main(final String[] args) {
+        new Main(args);
+    }
+}
diff --git a/main/src/main/resources/version.txt b/main/src/main/resources/version.txt
new file mode 100644
index 00000000..ad413fcd
--- /dev/null
+++ b/main/src/main/resources/version.txt
@@ -0,0 +1,4 @@
+ONAP Policy Framework Api Service
+Version: ${project.version}
+Built (UTC): ${maven.build.timestamp}
+ONAP https://wiki.onap.org
\ No newline at end of file
diff --git a/main/src/test/java/org/onap/policy/api/main/parameters/CommonTestData.java b/main/src/test/java/org/onap/policy/api/main/parameters/CommonTestData.java
new file mode 100644
index 00000000..f86c8570
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/api/main/parameters/CommonTestData.java
@@ -0,0 +1,52 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.parameters;
+
+/**
+ * Class to hold/create all parameters for test cases.
+ *
+ */
+public class CommonTestData {
+
+    private static final String REST_SERVER_PASSWORD = "zb!XztG34";
+    private static final String REST_SERVER_USER = "healthcheck";
+    private static final int REST_SERVER_PORT = 6969;
+    private static final String REST_SERVER_HOST = "0.0.0.0";
+    public static final String API_GROUP_NAME = "ApiGroup";
+
+    /**
+     * Returns an instance of ReceptionHandlerParameters for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return the restServerParameters object
+     */
+    public RestServerParameters getRestServerParameters(final boolean isEmpty) {
+        final RestServerParameters restServerParameters;
+        if (!isEmpty) {
+            restServerParameters = new RestServerParameters(REST_SERVER_HOST, REST_SERVER_PORT, REST_SERVER_USER,
+                    REST_SERVER_PASSWORD);
+        } else {
+            restServerParameters = new RestServerParameters(null, 0, null, null);
+        }
+        return restServerParameters;
+    }
+
+}
diff --git a/main/src/test/java/org/onap/policy/api/main/parameters/TestApiParameterGroup.java b/main/src/test/java/org/onap/policy/api/main/parameters/TestApiParameterGroup.java
new file mode 100644
index 00000000..6ad8c72b
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/api/main/parameters/TestApiParameterGroup.java
@@ -0,0 +1,92 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.parameters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+import org.onap.policy.common.parameters.GroupValidationResult;
+
+/**
+ * Class to perform unit test of ApiParameterGroup.
+ *
+ */
+public class TestApiParameterGroup {
+    CommonTestData commonTestData = new CommonTestData();
+
+    @Test
+    public void testApiParameterGroup() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(false);
+        final ApiParameterGroup apiParameters = new ApiParameterGroup(
+                CommonTestData.API_GROUP_NAME, restServerParameters);
+        final GroupValidationResult validationResult = apiParameters.validate();
+        assertTrue(validationResult.isValid());
+        assertEquals(restServerParameters.getHost(), apiParameters.getRestServerParameters().getHost());
+        assertEquals(restServerParameters.getPort(), apiParameters.getRestServerParameters().getPort());
+        assertEquals(restServerParameters.getUserName(),
+                apiParameters.getRestServerParameters().getUserName());
+        assertEquals(restServerParameters.getPassword(),
+                apiParameters.getRestServerParameters().getPassword());
+        assertEquals(CommonTestData.API_GROUP_NAME, apiParameters.getName());
+    }
+
+    @Test
+    public void testApiParameterGroup_NullName() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(false);
+        final ApiParameterGroup apiParameters = new ApiParameterGroup(null,
+                        restServerParameters);
+        final GroupValidationResult validationResult = apiParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals(null, apiParameters.getName());
+        assertTrue(validationResult.getResult()
+                        .contains("field \"name\" type \"java.lang.String\" value \"null\" INVALID, "
+                                        + "must be a non-blank string"));
+    }
+
+    @Test
+    public void testApiParameterGroup_EmptyName() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(false);
+
+        final ApiParameterGroup apiParameters = new ApiParameterGroup("",
+                        restServerParameters);
+        final GroupValidationResult validationResult = apiParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals("", apiParameters.getName());
+        assertTrue(validationResult.getResult().contains("field \"name\" type \"java.lang.String\" value \"\" INVALID, "
+                        + "must be a non-blank string"));
+    }
+
+    @Test
+    public void testApiParameterGroup_EmptyRestServerParameters() {
+        final RestServerParameters restServerParameters = commonTestData.getRestServerParameters(true);
+
+        final ApiParameterGroup apiParameters = new ApiParameterGroup(
+                        CommonTestData.API_GROUP_NAME, restServerParameters);
+        final GroupValidationResult validationResult = apiParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertTrue(validationResult.getResult()
+                        .contains("\"org.onap.policy.api.main.parameters.RestServerParameters\" INVALID, "
+                                        + "parameter group has status INVALID"));
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/api/main/parameters/TestApiParameterHandler.java b/main/src/test/java/org/onap/policy/api/main/parameters/TestApiParameterHandler.java
new file mode 100644
index 00000000..7a065240
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/api/main/parameters/TestApiParameterHandler.java
@@ -0,0 +1,219 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.parameters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+import org.junit.Test;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.startstop.ApiCommandLineArguments;
+
+/**
+ * Class to perform unit test of ApiParameterHandler.
+ *
+ */
+public class TestApiParameterHandler {
+    @Test
+    public void testParameterHandlerNoParameterFile() throws PolicyApiException {
+        final String[] noArgumentString =
+        { "-c", "parameters/NoParameterFile.json" };
+
+        final ApiCommandLineArguments noArguments = new ApiCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        try {
+            new ApiParameterHandler().getParameters(noArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertTrue(e.getMessage().contains("FileNotFoundException"));
+        }
+    }
+
+    @Test
+    public void testParameterHandlerEmptyParameters() throws PolicyApiException {
+        final String[] emptyArgumentString =
+        { "-c", "parameters/EmptyParameters.json" };
+
+        final ApiCommandLineArguments emptyArguments = new ApiCommandLineArguments();
+        emptyArguments.parse(emptyArgumentString);
+
+        try {
+            new ApiParameterHandler().getParameters(emptyArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertEquals("no parameters found in \"parameters/EmptyParameters.json\"", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testParameterHandlerBadParameters() throws PolicyApiException {
+        final String[] badArgumentString =
+        { "-c", "parameters/BadParameters.json" };
+
+        final ApiCommandLineArguments badArguments = new ApiCommandLineArguments();
+        badArguments.parse(badArgumentString);
+
+        try {
+            new ApiParameterHandler().getParameters(badArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertEquals("error reading parameters from \"parameters/BadParameters.json\"\n"
+                    + "(JsonSyntaxException):java.lang.IllegalStateException: "
+                    + "Expected a string but was BEGIN_ARRAY at line 2 column 15 path $.name", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testParameterHandlerInvalidParameters() throws PolicyApiException {
+        final String[] invalidArgumentString =
+        { "-c", "parameters/InvalidParameters.json" };
+
+        final ApiCommandLineArguments invalidArguments = new ApiCommandLineArguments();
+        invalidArguments.parse(invalidArgumentString);
+
+        try {
+            new ApiParameterHandler().getParameters(invalidArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertEquals("error reading parameters from \"parameters/InvalidParameters.json\"\n"
+                    + "(JsonSyntaxException):java.lang.IllegalStateException: "
+                    + "Expected a string but was BEGIN_ARRAY at line 2 column 15 path $.name", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testParameterHandlerNoParameters() throws PolicyApiException {
+        final String[] noArgumentString =
+        { "-c", "parameters/NoParameters.json" };
+
+        final ApiCommandLineArguments noArguments = new ApiCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        try {
+            new ApiParameterHandler().getParameters(noArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            String expMsg = "validation error(s) on parameters from \"parameters/NoParameters.json\"\nparameter group "
+                    + "\"null\" type \"org.onap.policy.api.main.parameters.ApiParameterGroup\" INVALID, parameter "
+                    + "group has status INVALID\n"
+                    + "  field \"name\" type \"java.lang.String\" value \"null\" INVALID, must be a non-blank string\n";
+            assertEquals(expMsg, e.getMessage());
+        }
+    }
+
+    @Test
+    public void testParameterHandlerMinumumParameters() throws PolicyApiException {
+        final String[] minArgumentString =
+        { "-c", "parameters/MinimumParameters.json" };
+
+        final ApiCommandLineArguments minArguments = new ApiCommandLineArguments();
+        minArguments.parse(minArgumentString);
+
+        final ApiParameterGroup parGroup = new ApiParameterHandler().getParameters(minArguments);
+        assertEquals(CommonTestData.API_GROUP_NAME, parGroup.getName());
+    }
+
+    @Test
+    public void testApiParameterGroup() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-c", "parameters/ApiConfigParameters.json" };
+
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        arguments.parse(apiConfigParameters);
+
+        final ApiParameterGroup parGroup = new ApiParameterHandler().getParameters(arguments);
+        assertTrue(arguments.checkSetConfigurationFilePath());
+        assertEquals(CommonTestData.API_GROUP_NAME, parGroup.getName());
+    }
+
+    @Test
+    public void testApiParameterGroup_InvalidName() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-c", "parameters/ApiConfigParameters_InvalidName.json" };
+
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        arguments.parse(apiConfigParameters);
+
+        try {
+            new ApiParameterHandler().getParameters(arguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertTrue(e.getMessage().contains(
+                    "field \"name\" type \"java.lang.String\" value \" \" INVALID, must be a non-blank string"));
+        }
+    }
+
+    @Test
+    public void testApiParameterGroup_InvalidRestServerParameters()
+            throws PolicyApiException, IOException {
+        final String[] apiConfigParameters =
+        { "-c", "parameters/ApiConfigParameters_InvalidRestServerParameters.json" };
+
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        arguments.parse(apiConfigParameters);
+
+        try {
+            new ApiParameterHandler().getParameters(arguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            final String expectedResult = new String(Files.readAllBytes(
+                    Paths.get("src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt")))
+                            .replaceAll("\\s+", "");
+            assertEquals(expectedResult, e.getMessage().replaceAll("\\s+", ""));
+        }
+    }
+
+    @Test
+    public void testApiVersion() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-v" };
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        final String version = arguments.parse(apiConfigParameters);
+        assertTrue(version.startsWith("ONAP Policy Framework Api Service"));
+    }
+
+    @Test
+    public void testApiHelp() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-h" };
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        final String help = arguments.parse(apiConfigParameters);
+        assertTrue(help.startsWith("usage:"));
+    }
+
+    @Test
+    public void testApiInvalidOption() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-d" };
+        final ApiCommandLineArguments arguments = new ApiCommandLineArguments();
+        try {
+            arguments.parse(apiConfigParameters);
+        } catch (final Exception exp) {
+            assertTrue(exp.getMessage().startsWith("invalid command line arguments specified"));
+        }
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/api/main/rest/TestApiRestServer.java b/main/src/test/java/org/onap/policy/api/main/rest/TestApiRestServer.java
new file mode 100644
index 00000000..ad63d0f1
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/api/main/rest/TestApiRestServer.java
@@ -0,0 +1,117 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.rest;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+
+import org.glassfish.jersey.client.ClientConfig;
+import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
+import org.junit.Test;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.parameters.CommonTestData;
+import org.onap.policy.api.main.parameters.RestServerParameters;
+import org.onap.policy.api.main.startstop.Main;
+import org.onap.policy.common.endpoints.report.HealthCheckReport;
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+
+/**
+ * Class to perform unit test of HealthCheckMonitor.
+ *
+ */
+public class TestApiRestServer {
+
+    private static final Logger LOGGER = FlexLogger.getLogger(TestApiRestServer.class);
+    private static final String NOT_ALIVE = "not alive";
+    private static final String ALIVE = "alive";
+    private static final String SELF = "self";
+    private static final String NAME = "Policy API";
+
+    @Test
+    public void testHealthCheckSuccess() throws PolicyApiException, InterruptedException {
+        final String reportString = "Report [name=Policy API, url=self, healthy=true, code=200, message=alive]";
+        final Main main = startApiService();
+        final HealthCheckReport report = performHealthCheck();
+        validateReport(NAME, SELF, true, 200, ALIVE, reportString, report);
+        stopApiService(main);
+    }
+
+    @Test
+    public void testHealthCheckFailure() throws InterruptedException {
+        final String reportString = "Report [name=Policy API, url=self, healthy=false, code=500, message=not alive]";
+        final RestServerParameters restServerParams = new CommonTestData().getRestServerParameters(false);
+        restServerParams.setName(CommonTestData.API_GROUP_NAME);
+        final ApiRestServer restServer = new ApiRestServer(restServerParams);
+        restServer.start();
+        final HealthCheckReport report = performHealthCheck();
+        validateReport(NAME, SELF, false, 500, NOT_ALIVE, reportString, report);
+        assertTrue(restServer.isAlive());
+        assertTrue(restServer.toString().startsWith("ApiRestServer [servers="));
+        restServer.shutdown();
+    }
+
+    private Main startApiService() {
+        final String[] apiConfigParameters = { "-c", "parameters/ApiConfigParameters.json" };
+        return new Main(apiConfigParameters);
+    }
+
+    private void stopApiService(final Main main) throws PolicyApiException {
+        main.shutdown();
+    }
+
+    private HealthCheckReport performHealthCheck() throws InterruptedException {
+        HealthCheckReport response = null;
+        final ClientConfig clientConfig = new ClientConfig();
+
+        final HttpAuthenticationFeature feature = HttpAuthenticationFeature.basic("healthcheck", "zb!XztG34");
+        clientConfig.register(feature);
+
+        final Client client = ClientBuilder.newClient(clientConfig);
+        final WebTarget webTarget = client.target("http://localhost:6969/healthcheck");
+
+        final Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON);
+        while (response == null) {
+            try {
+                response = invocationBuilder.get(HealthCheckReport.class);
+            } catch (final Exception exp) {
+                LOGGER.info("the server is not started yet. We will retry again");
+            }
+        }
+        return response;
+    }
+
+    private void validateReport(final String name, final String url, final boolean healthy, final int code,
+            final String message, final String reportString, final HealthCheckReport report) {
+        assertEquals(name, report.getName());
+        assertEquals(url, report.getUrl());
+        assertEquals(healthy, report.isHealthy());
+        assertEquals(code, report.getCode());
+        assertEquals(message, report.getMessage());
+        assertEquals(reportString, report.toString());
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/api/main/startstop/TestApiActivator.java b/main/src/test/java/org/onap/policy/api/main/startstop/TestApiActivator.java
new file mode 100644
index 00000000..e5ab8101
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/api/main/startstop/TestApiActivator.java
@@ -0,0 +1,55 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.startstop;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.parameters.ApiParameterGroup;
+import org.onap.policy.api.main.parameters.ApiParameterHandler;
+import org.onap.policy.api.main.parameters.CommonTestData;
+
+
+/**
+ * Class to perform unit test of ApiActivator.
+ *
+ */
+public class TestApiActivator {
+
+    @Test
+    public void testApiActivator() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-c", "parameters/ApiConfigParameters.json" };
+
+        final ApiCommandLineArguments arguments =
+                new ApiCommandLineArguments(apiConfigParameters);
+
+        final ApiParameterGroup parGroup = new ApiParameterHandler().getParameters(arguments);
+
+        final ApiActivator activator = new ApiActivator(parGroup);
+        activator.initialize();
+        assertTrue(activator.getParameterGroup().isValid());
+        assertEquals(CommonTestData.API_GROUP_NAME, activator.getParameterGroup().getName());
+        activator.terminate();
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/api/main/startstop/TestMain.java b/main/src/test/java/org/onap/policy/api/main/startstop/TestMain.java
new file mode 100644
index 00000000..47725349
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/api/main/startstop/TestMain.java
@@ -0,0 +1,76 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.api.main.startstop;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.policy.api.main.PolicyApiException;
+import org.onap.policy.api.main.parameters.CommonTestData;
+
+/**
+ * Class to perform unit test of Main.
+ *
+ */
+public class TestMain {
+
+    @Test
+    public void testMain() throws PolicyApiException {
+        final String[] apiConfigParameters =
+        { "-c", "parameters/ApiConfigParameters.json" };
+        final Main main = new Main(apiConfigParameters);
+        assertTrue(main.getParameters().isValid());
+        assertEquals(CommonTestData.API_GROUP_NAME, main.getParameters().getName());
+        main.shutdown();
+    }
+
+    @Test
+    public void testMain_NoArguments() {
+        final String[] apiConfigParameters =
+        {};
+        final Main main = new Main(apiConfigParameters);
+        assertTrue(main.getParameters() == null);
+    }
+
+    @Test
+    public void testMain_InvalidArguments() {
+        final String[] apiConfigParameters =
+        { "parameters/ApiConfigParameters.json" };
+        final Main main = new Main(apiConfigParameters);
+        assertTrue(main.getParameters() == null);
+    }
+
+    @Test
+    public void testMain_Help() {
+        final String[] apiConfigParameters =
+        { "-h" };
+        Main.main(apiConfigParameters);
+    }
+
+    @Test
+    public void testMain_InvalidParameters() {
+        final String[] apiConfigParameters =
+        { "-c", "parameters/ApiConfigParameters_InvalidName.json" };
+        final Main main = new Main(apiConfigParameters);
+        assertTrue(main.getParameters() == null);
+    }
+}
diff --git a/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt b/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt
new file mode 100644
index 00000000..2ab9c1b4
--- /dev/null
+++ b/main/src/test/resources/expectedValidationResults/InvalidRestServerParameters.txt
@@ -0,0 +1,7 @@
+validation error(s) on parameters from "parameters/ApiConfigParameters_InvalidRestServerParameters.json"
+parameter group "ApiGroup" type "org.onap.policy.api.main.parameters.ApiParameterGroup" INVALID, parameter group has status INVALID
+  parameter group "null" type "org.onap.policy.api.main.parameters.RestServerParameters" INVALID, parameter group has status INVALID
+    field "host" type "java.lang.String" value "" INVALID, must be a non-blank string containing hostname/ipaddress of the api rest server
+    field "port" type "int" value "-1" INVALID, must be a positive integer containing port of the api rest server
+    field "userName" type "java.lang.String" value "" INVALID, must be a non-blank string containing userName for api rest server credentials
+    field "password" type "java.lang.String" value "" INVALID, must be a non-blank string containing password for api rest server credentials
diff --git a/main/src/test/resources/parameters/ApiConfigParameters.json b/main/src/test/resources/parameters/ApiConfigParameters.json
new file mode 100644
index 00000000..8fae1238
--- /dev/null
+++ b/main/src/test/resources/parameters/ApiConfigParameters.json
@@ -0,0 +1,9 @@
+{
+    "name":"ApiGroup",
+    "restServerParameters":{
+        "host":"0.0.0.0",
+        "port":6969,
+        "userName":"healthcheck",
+        "password":"zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/ApiConfigParameters_InvalidName.json b/main/src/test/resources/parameters/ApiConfigParameters_InvalidName.json
new file mode 100644
index 00000000..80fb8232
--- /dev/null
+++ b/main/src/test/resources/parameters/ApiConfigParameters_InvalidName.json
@@ -0,0 +1,9 @@
+{
+    "name":" ",
+    "restServerParameters":{
+        "host":"0.0.0.0",
+        "port":6969,
+        "userName":"healthcheck",
+        "password":"zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/ApiConfigParameters_InvalidRestServerParameters.json b/main/src/test/resources/parameters/ApiConfigParameters_InvalidRestServerParameters.json
new file mode 100644
index 00000000..2d394fbc
--- /dev/null
+++ b/main/src/test/resources/parameters/ApiConfigParameters_InvalidRestServerParameters.json
@@ -0,0 +1,9 @@
+{
+    "name":"ApiGroup",
+    "restServerParameters":{
+        "host":"",
+        "port":-1,
+        "userName":"",
+        "password":""
+    }
+}
diff --git a/main/src/test/resources/parameters/BadParameters.json b/main/src/test/resources/parameters/BadParameters.json
new file mode 100644
index 00000000..de2040cc
--- /dev/null
+++ b/main/src/test/resources/parameters/BadParameters.json
@@ -0,0 +1,3 @@
+{
+    "name" : []
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/EmptyParameters.json b/main/src/test/resources/parameters/EmptyParameters.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/main/src/test/resources/parameters/EmptyParameters.json
diff --git a/main/src/test/resources/parameters/InvalidParameters.json b/main/src/test/resources/parameters/InvalidParameters.json
new file mode 100644
index 00000000..de2040cc
--- /dev/null
+++ b/main/src/test/resources/parameters/InvalidParameters.json
@@ -0,0 +1,3 @@
+{
+    "name" : []
+}
\ No newline at end of file
diff --git a/main/src/test/resources/parameters/MinimumParameters.json b/main/src/test/resources/parameters/MinimumParameters.json
new file mode 100644
index 00000000..61c6c869
--- /dev/null
+++ b/main/src/test/resources/parameters/MinimumParameters.json
@@ -0,0 +1,9 @@
+{  
+    "name":"ApiGroup",
+    "restServerParameters":{
+        "host":"0.0.0.0",
+        "port":6969,
+        "userName":"healthcheck",
+        "password":"zb!XztG34"
+    }
+}
diff --git a/main/src/test/resources/parameters/NoParameters.json b/main/src/test/resources/parameters/NoParameters.json
new file mode 100644
index 00000000..6b0805d3
--- /dev/null
+++ b/main/src/test/resources/parameters/NoParameters.json
@@ -0,0 +1,8 @@
+{
+    "restServerParameters":{
+        "host":"0.0.0.0",
+        "port":6969,
+        "userName":"healthcheck",
+        "password":"zb!XztG34"
+    }
+}
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 3b7bdd1c..b2d885c7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,6 +3,7 @@
   ONAP Policy API
   ================================================================================
   Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+  Modified Copyright (C) 2018 Samsung Electronics Co., Ltd.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -19,30 +20,181 @@
   -->
 
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-
-	<parent>
-		<groupId>org.onap.policy.parent</groupId>
-		<artifactId>integration</artifactId>
-		<version>2.0.0-SNAPSHOT</version>
-		<relativePath/>
-	</parent>
-
-	<groupId>org.onap.policy.api</groupId>
-	<artifactId>policy-api</artifactId>
-	<version>2.0.0-SNAPSHOT</version>
-
-	<packaging>pom</packaging>
-
-	<name>policy-api</name>
-	<description>Code that define our external API.</description>
-
-	<distributionManagement>
-		<site>
-			<id>ecomp-site</id>
-			<url>dav:${nexusproxy}${sitePath}</url>
-		</site>
-	</distributionManagement>
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.onap.policy.parent</groupId>
+        <artifactId>integration</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+        <relativePath/>
+    </parent>
+
+    <groupId>org.onap.policy.api</groupId>
+    <artifactId>policy-api</artifactId>
+    <version>2.0.0-SNAPSHOT</version>
+
+    <packaging>pom</packaging>
+
+    <name>policy-api</name>
+    <description>Code that define our external API.</description>
+
+    <properties>
+        <!-- sonar/jacoco overrides -->
+        <!-- Overriding oparent default sonar/jacoco settings Combine all our reports
+            into one file shared across sub-modules -->
+        <sonar.jacoco.reportPath>${project.basedir}/../target/code-coverage/jacoco-ut.exec</sonar.jacoco.reportPath>
+        <sonar.jacoco.itReportPath>${project.basedir}/../target/code-coverage/jacoco-it.exec</sonar.jacoco.itReportPath>
+        <sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
+
+        <policy.common.version>1.3.0-SNAPSHOT</policy.common.version>
+    </properties>
+
+    <modules>
+        <module>main</module>
+    </modules>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-ext</artifactId>
+            <version>1.8.0-beta2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+        </dependency>
+    </dependencies>
+
+    <distributionManagement>
+        <site>
+            <id>ecomp-site</id>
+            <url>dav:${nexusproxy}${sitePath}</url>
+        </site>
+    </distributionManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>pre-unit-test</id>
+                        <goals>
+                            <goal>prepare-agent</goal>
+                        </goals>
+                        <configuration>
+                            <destFile>${sonar.jacoco.reportPath}</destFile>
+                            <append>true</append>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>post-unit-test</id>
+                        <phase>test</phase>
+                        <goals>
+                            <goal>report</goal>
+                        </goals>
+                        <configuration>
+                            <dataFile>${sonar.jacoco.reportPath}</dataFile>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>onap-java-style</id>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                        <configuration>
+                            <!-- Use Google Java Style Guide:
+                            https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/google_checks.xml
+                            with minor changes -->
+                            <configLocation>onap-checkstyle/onap-java-style.xml</configLocation>
+                            <!-- <sourceDirectory> is needed so that checkstyle ignores the generated sources directory -->
+                            <sourceDirectory>${project.build.sourceDirectory}/src/main/java</sourceDirectory>
+                            <includeResources>true</includeResources>
+                            <includeTestSourceDirectory>true</includeTestSourceDirectory>
+                            <includeTestResources>true</includeTestResources>
+                            <excludes>
+                            </excludes>
+                            <consoleOutput>true</consoleOutput>
+                            <failOnViolation>true</failOnViolation>
+                            <violationSeverity>warning</violationSeverity>
+                        </configuration>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.onap.oparent</groupId>
+                        <artifactId>checkstyle</artifactId>
+                        <version>1.1.0</version>
+                        <scope>compile</scope>
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.jacoco</groupId>
+                    <artifactId>jacoco-maven-plugin</artifactId>
+                    <version>${jacoco.version}</version>
+                    <configuration>
+                        <!-- Note: This exclusion list should match <sonar.exclusions> property
+                            above -->
+                        <excludes>
+                            <exclude>**/gen/**</exclude>
+                            <exclude>**/generated-sources/**</exclude>
+                            <exclude>**/yang-gen/**</exclude>
+                            <exclude>**/pax/**</exclude>
+                        </excludes>
+                    </configuration>
+                    <executions>
+                        <!-- Prepares the property pointing to the JaCoCo runtime agent which
+                            is passed as VM argument when Maven the Surefire plugin is executed. -->
+                        <execution>
+                            <id>pre-unit-test</id>
+                            <goals>
+                                <goal>prepare-agent</goal>
+                            </goals>
+                            <configuration>
+                                <destFile>${sonar.jacoco.reportPath}</destFile>
+                            </configuration>
+                        </execution>
+                        <!-- Ensures that the code coverage report for unit tests is created
+                            after unit tests have been run. -->
+                        <execution>
+                            <id>post-unit-test</id>
+                            <phase>test</phase>
+                            <goals>
+                                <goal>report</goal>
+                            </goals>
+                            <configuration>
+                                <dataFile>${sonar.jacoco.reportPath}</dataFile>
+                            </configuration>
+                        </execution>
+                    </executions>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
 
 </project>