AAI client & common module added

* added module containing common code for other sdk modules
* added reactive rest client for AAI data base with unit tests
* improved poms
* license text corrected accoriding to SDK

Change-Id: I23ea5fbf0e45170b2a1d70ad300bd72121d16ec1
Issue-ID: DCAEGEN2-986
Signed-off-by: pwielebs <piotr.wielebski@nokia.com>

5 files changed, 300 insertions, 0 deletions

diff --git a/rest-services/common-dependency/pom.xml b/rest-services/common-dependency/pom.xml
new file mode 100644
index 00000000..7289514a
--- /dev/null
+++ b/rest-services/common-dependency/pom.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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.dcaegen2.services.sdk</groupId>
+        <artifactId>dcaegen2-services-sdk-rest-services</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <groupId>org.onap.dcaegen2.services.sdk.rest.services</groupId>
+    <artifactId>common-dependency</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+
+    <name>dcaegen2-services-sdk-rest-services-common-dependency</name>
+    <description>Common functionality in the project</description>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.projectreactor.netty</groupId>
+            <artifactId>reactor-netty</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.immutables</groupId>
+            <artifactId>gson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.immutables</groupId>
+            <artifactId>value</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jul-to-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>log4j-over-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+        </dependency>
+
+    </dependencies>
+</project>
\ No newline at end of file
diff --git a/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/CommonFunctions.java b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/CommonFunctions.java
new file mode 100644
index 00000000..55b12e0a
--- /dev/null
+++ b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/CommonFunctions.java
@@ -0,0 +1,46 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.model;
+
+import com.google.gson.GsonBuilder;
+import com.google.gson.TypeAdapterFactory;
+
+import java.util.ServiceLoader;
+
+
+public class CommonFunctions {
+
+    private CommonFunctions() {
+    }
+
+    /**
+     * Method for serialization object by GSON.
+     *
+     * @param consumerDmaapModel - object which will be serialized
+     * @return string from serialization
+     */
+    public static String createJsonBody(ConsumerDmaapModel consumerDmaapModel) {
+        GsonBuilder gsonBuilder = new GsonBuilder();
+        ServiceLoader.load(TypeAdapterFactory.class).forEach(gsonBuilder::registerTypeAdapterFactory);
+        return gsonBuilder.create().toJson(ImmutableConsumerDmaapModel.builder().ipv4(consumerDmaapModel.getIpv4())
+            .ipv6(consumerDmaapModel.getIpv6()).correlationId(consumerDmaapModel.getCorrelationId()).build());
+    }
+}
\ No newline at end of file
diff --git a/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/ConsumerDmaapModel.java b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/ConsumerDmaapModel.java
new file mode 100644
index 00000000..1bf9ff62
--- /dev/null
+++ b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/ConsumerDmaapModel.java
@@ -0,0 +1,43 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.model;
+
+import com.google.gson.annotations.SerializedName;
+import org.immutables.gson.Gson;
+import org.immutables.value.Value;
+
+/**
+ * @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 5/8/18
+ */
+
+@Value.Immutable
+@Gson.TypeAdapters(fieldNamingStrategy = true)
+public interface ConsumerDmaapModel {
+
+    @SerializedName(value = "correlationId", alternate = "correlationId")
+    String getCorrelationId();
+
+    @SerializedName(value = "ipaddress-v4-oam", alternate = "ipaddress-v4-oam")
+    String getIpv4();
+
+    @SerializedName(value = "ipaddress-v6-oam", alternate = "ipaddress-v6-oam")
+    String getIpv6();
+}
diff --git a/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/logging/MdcVariables.java b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/logging/MdcVariables.java
new file mode 100644
index 00000000..22090e9f
--- /dev/null
+++ b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/model/logging/MdcVariables.java
@@ -0,0 +1,45 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.model.logging;
+
+import org.slf4j.MDC;
+
+import java.util.Map;
+
+public final class MdcVariables {
+
+    public static final String X_ONAP_REQUEST_ID = "X-ONAP-RequestID";
+    public static final String X_INVOCATION_ID = "X-InvocationID";
+    public static final String REQUEST_ID = "RequestID";
+    public static final String INVOCATION_ID = "InvocationID";
+    public static final String INSTANCE_UUID = "InstanceUUID";
+    public static final String RESPONSE_CODE = "ResponseCode";
+    public static final String SERVICE_NAME = "ServiceName";
+
+    private MdcVariables() {
+    }
+
+    public static void setMdcContextMap(Map<String, String> mdcContextMap) {
+        if (mdcContextMap != null) {
+            MDC.setContextMap(mdcContextMap);
+        }
+    }
+}
diff --git a/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/ssl/SslFactory.java b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/ssl/SslFactory.java
new file mode 100644
index 00000000..cce811c5
--- /dev/null
+++ b/rest-services/common-dependency/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/ssl/SslFactory.java
@@ -0,0 +1,112 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.ssl;
+
+import io.netty.handler.ssl.SslContext;
+import io.netty.handler.ssl.SslContextBuilder;
+import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.net.ssl.KeyManagerFactory;
+import javax.net.ssl.SSLException;
+import javax.net.ssl.TrustManagerFactory;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.security.GeneralSecurityException;
+import java.security.KeyStore;
+
+public class SslFactory {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(SslFactory.class);
+
+    /**
+     * Function for creating secure ssl context.
+     *
+     * @param keyStorePath - path to file with keystore
+     * @param keyStorePasswordPath - path to file with keystore password
+     * @param trustStorePath - path to file with truststore
+     * @param trustStorePasswordPath - path to file with truststore password
+     * @return configured ssl context
+     */
+    public SslContext createSecureContext(String keyStorePath,
+        String keyStorePasswordPath,
+        String trustStorePath,
+        String trustStorePasswordPath) throws SSLException {
+        LOGGER.info("Creating secure ssl context for: {} {}", keyStorePath, trustStorePath);
+        try {
+            return SslContextBuilder
+                .forClient()
+                .keyManager(keyManagerFactory(keyStorePath, loadPasswordFromFile(keyStorePasswordPath)))
+                .trustManager(trustManagerFactory(trustStorePath, loadPasswordFromFile(trustStorePasswordPath)))
+                .build();
+        } catch (GeneralSecurityException | IOException ex) {
+            throw new SSLException(ex);
+        }
+    }
+
+    /**
+     * Function for creating insecure ssl context.
+     *
+     * @return configured insecure ssl context
+     */
+    public SslContext createInsecureContext() throws SSLException {
+        LOGGER.info("Creating insecure ssl context");
+        return SslContextBuilder
+            .forClient()
+            .trustManager(InsecureTrustManagerFactory.INSTANCE)
+            .build();
+    }
+
+    private KeyManagerFactory keyManagerFactory(String path, String password)
+            throws GeneralSecurityException, IOException {
+        KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
+        kmf.init(loadKeyStoreFromFile(path, password),
+            password.toCharArray());
+        return kmf;
+    }
+
+    private TrustManagerFactory trustManagerFactory(String path, String password)
+            throws GeneralSecurityException, IOException {
+        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+        tmf.init(loadKeyStoreFromFile(path, password));
+        return tmf;
+    }
+
+    private KeyStore loadKeyStoreFromFile(String path, String keyStorePassword)
+            throws GeneralSecurityException, IOException {
+        KeyStore ks = KeyStore.getInstance("jks");
+        ks.load(getResource(path), keyStorePassword.toCharArray());
+        return ks;
+    }
+
+    private InputStream getResource(String path) throws FileNotFoundException {
+        return new FileInputStream(path);
+    }
+
+    private String loadPasswordFromFile(String path) throws IOException {
+        return new String(Files.readAllBytes(Paths.get(path)));
+    }
+}