Merge "Fix service registration for SDNC"

5 files changed, 284 insertions, 104 deletions

diff --git a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/DME2.java b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/DME2.java
index 105ae9545..326490d9d 100644
--- a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/DME2.java
+++ b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/DME2.java
@@ -23,6 +23,7 @@ package org.onap.ccsdk.sli.core.slipluginutils;
 
 import java.util.Map;
 
+import java.util.Optional;
 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
 import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
@@ -35,16 +36,19 @@ import org.slf4j.LoggerFactory;
  * A SvcLogicJavaPlugin that generates DME2 proxy urls using parameters from context memory.
  */
 public class DME2 implements SvcLogicJavaPlugin {
-    String aafUserName;
-    String aafPassword;
-    String envContext;
-    String routeOffer;
-    String[] proxyUrls;
+
+    private static final Logger LOG = LoggerFactory.getLogger(DME2.class);
+
+    final String aafUserName;
+    final String aafPassword;
+    final String envContext;
+    final String routeOffer;
+    final String[] proxyUrls;
+    final String commonServiceVersion;
+
     Integer index;
-    String commonServiceVersion;
     String partner;
 
-    private static final Logger LOG = LoggerFactory.getLogger(DME2.class);
 
     public void setPartner(String partner) {
         if (partner != null && partner.length() > 0) {
@@ -62,6 +66,37 @@ public class DME2 implements SvcLogicJavaPlugin {
         this.commonServiceVersion = commonServiceVersion;
     }
 
+    public DME2(final Dme2PropertiesProvider provider) {
+        this.aafUserName = useProperty(provider.getAafUsername(), Dme2PropertiesProvider.AAF_USERNAME_KEY);
+        this.aafPassword = useProperty(provider.getAafPassword(), Dme2PropertiesProvider.AAF_PASSWORD_KEY);
+        this.envContext = useProperty(provider.getEnvContext(), Dme2PropertiesProvider.ENV_CONTEXT_KEY);
+        this.routeOffer = useProperty(provider.getRouteOffer(), Dme2PropertiesProvider.ROUTE_OFFER_KEY);
+        this.index = 0;
+        this.commonServiceVersion = useProperty(provider.getCommonServiceVersion(),
+                Dme2PropertiesProvider.COMMON_SERVICE_VERSION_KEY);
+
+        final Optional<String []> maybeProxyUrls = provider.getProxyUrls();
+        if (maybeProxyUrls.isPresent()) {
+            this.proxyUrls = maybeProxyUrls.get();
+        } else {
+            warnOfMissingProperty(Dme2PropertiesProvider.PROXY_URL_KEY);
+            this.proxyUrls = null;
+        }
+        this.setPartner(useProperty(provider.getPartner(), Dme2PropertiesProvider.PARTNER_KEY));
+    }
+
+    private String useProperty(final Optional<String> propertyOptional, final String propertyKey) {
+        if (propertyOptional.isPresent()) {
+            return propertyOptional.get();
+        }
+        warnOfMissingProperty(propertyKey);
+        return null;
+    }
+
+    private void warnOfMissingProperty(final String propertyName) {
+        LOG.warn("Utilizing null for {} since it was left unassigned in the properties file");
+    }
+
     // constructs a URL to contact the proxy which contacts a DME2 service
     public String constructUrl(String service, String version, String subContext) {
         StringBuilder sb = new StringBuilder();
diff --git a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/Dme2PropertiesProvider.java b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/Dme2PropertiesProvider.java
new file mode 100644
index 000000000..519614916
--- /dev/null
+++ b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/Dme2PropertiesProvider.java
@@ -0,0 +1,223 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK
+ * ================================================================================
+ * Copyright (C) 2017 AT&T 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.ccsdk.sli.core.slipluginutils;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Strings;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Optional;
+import java.util.Properties;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Immutable properties container for dme2 properties.  Since the initial design decision was made to
+ * utilize <code>Properties</code> instead of an OSGi <code>ManagedService</code>, it was decided
+ * to make these properties immutable.
+ */
+public final class Dme2PropertiesProvider {
+
+    private static final Logger LOG = LoggerFactory.getLogger(Dme2PropertiesProvider.class);
+
+    /**
+     * The name of the environment variable to specify the configuration directory.
+     */
+    private static final String SDNC_ROOT_DIR_ENV_VAR_KEY = "SDNC_CONFIG_DIR";
+
+    /**
+     * the dme2 properties file name.
+     */
+    private static final String DME2_PROPERTIES_FILE_NAME = "dme2.properties";
+
+    /**
+     * the key for <code>proxyUrl</code>, which represents a CSV list of urls
+     */
+    static final String PROXY_URL_KEY = "proxyUrl";
+
+    /**
+     * indicates that proxy urls are separated by commas
+     */
+    private static final String PROXY_URLS_VALUE_SEPARATOR = ",";
+
+    /**
+     * the key for <code>aafUsername</code>
+     */
+    static final String AAF_USERNAME_KEY = "aafUsername";
+
+    /**
+     * the key for <code>aafPassword</code>
+     */
+    static final String AAF_PASSWORD_KEY = "aafPassword";
+
+    /**
+     * the key for <code>envContext</code>
+     */
+    static final String ENV_CONTEXT_KEY = "envContext";
+
+    /**
+     * the key for <code>routeOffer</code>
+     */
+    static final String ROUTE_OFFER_KEY = "routeOffer";
+
+    /**
+     * the key for <code>commonServiceVersion</code>
+     */
+    static final String COMMON_SERVICE_VERSION_KEY = "commonServiceVersion";
+
+    /**
+     * the key for <code>partner</code>
+     */
+    static final String PARTNER_KEY = "partner";
+
+    private Optional<String []> proxyUrls = Optional.empty();
+
+    private Optional<String> aafUsername = Optional.empty();
+
+    private Optional<String> aafPassword = Optional.empty();
+
+    private Optional<String> envContext = Optional.empty();
+
+    private Optional<String> routeOffer = Optional.empty();
+
+    private Optional<String> commonServiceVersion = Optional.empty();
+
+    private Optional<String> partner = Optional.empty();
+
+
+    /**
+     * Instantiates the properties provider, which involves loading the appropriate properties for dme2.
+     */
+    public Dme2PropertiesProvider() {
+        this(getDme2Path(SDNC_ROOT_DIR_ENV_VAR_KEY, DME2_PROPERTIES_FILE_NAME).toString());
+    }
+
+    /**
+     * Instantiates the properties provider, which involves loading the appropriate properties for dme2.
+     *
+     * @param dme2Path location of the dme2.properties file
+     */
+    @VisibleForTesting
+    Dme2PropertiesProvider(final String dme2Path) {
+        final Properties properties;
+        try {
+            properties = getProperties(dme2Path);
+            this.proxyUrls = getProxyUrls(properties);
+            this.aafUsername = getAafUsername(properties);
+            this.aafPassword = getAafPassword(properties);
+            this.envContext = getEnvContext(properties);
+            this.routeOffer = getRouteOffer(properties);
+            this.commonServiceVersion = getCommonServiceVersion(properties);
+            this.partner = getPartner(properties);
+        } catch (final FileNotFoundException e) {
+            LOG.error("dme2.properties file could not be found at path: {}", dme2Path, e);
+        } catch (final IOException e) {
+            LOG.error("fatal error reading dme2.properties at path: {}", dme2Path, e);
+        }
+    }
+
+    private static Path getDme2Path(final String sdncRootDirectory, final String dme2Filename) {
+        return Paths.get(sdncRootDirectory, dme2Filename);
+    }
+
+    private static Properties getProperties(final String dme2Path) throws IOException {
+        final File dme2File = new File(dme2Path);
+        final Properties properties = new Properties();
+        properties.load(new FileReader(dme2File));
+        return properties;
+    }
+
+    private String getProxyUrl(final Properties properties) {
+        return properties.getProperty(PROXY_URL_KEY);
+    }
+
+    private Optional<String []> getProxyUrls(final Properties properties) {
+        final String proxyUrlsValue = getProxyUrl(properties);
+        if (!Strings.isNullOrEmpty(proxyUrlsValue)) {
+            return Optional.ofNullable(proxyUrlsValue.split(PROXY_URLS_VALUE_SEPARATOR));
+        }
+        return Optional.empty();
+    }
+
+    public Optional<String []> getProxyUrls() {
+        return this.proxyUrls;
+    }
+
+    private Optional<String> getAafUsername(final Properties properties) {
+        final String aafUsernameValue = properties.getProperty(AAF_USERNAME_KEY);
+        return Optional.ofNullable(aafUsernameValue);
+    }
+
+    Optional<String> getAafUsername() {
+        return this.aafUsername;
+    }
+
+    private Optional<String> getAafPassword(final Properties properties) {
+        final String aafPassword = properties.getProperty(AAF_PASSWORD_KEY);
+        return Optional.ofNullable(aafPassword);
+    }
+
+    Optional<String> getAafPassword() {
+        return this.aafPassword;
+    }
+
+    private Optional<String> getEnvContext(final Properties properties) {
+        final String envContext = properties.getProperty(ENV_CONTEXT_KEY);
+        return Optional.ofNullable(envContext);
+    }
+
+    Optional<String> getEnvContext() {
+        return this.envContext;
+    }
+
+    private Optional<String> getRouteOffer(final Properties properties) {
+        final String routeOffer = properties.getProperty(ROUTE_OFFER_KEY);
+        return Optional.ofNullable(routeOffer);
+    }
+
+    Optional<String> getRouteOffer() {
+        return this.routeOffer;
+    }
+
+    private Optional<String> getCommonServiceVersion(final Properties properties) {
+        final String commonServiceVersion = properties.getProperty(COMMON_SERVICE_VERSION_KEY);
+        return Optional.ofNullable(commonServiceVersion);
+    }
+
+    Optional<String> getCommonServiceVersion() {
+        return this.commonServiceVersion;
+    }
+
+    private Optional<String> getPartner(final Properties properties) {
+        final String partner = properties.getProperty(PARTNER_KEY);
+        return Optional.ofNullable(partner);
+    }
+
+    Optional<String> getPartner() {
+        return this.partner;
+    }
+}
diff --git a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtils.java b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtils.java
index 8a2aa6d69..e6811e789 100644
--- a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtils.java
+++ b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtils.java
@@ -60,8 +60,6 @@ public class SliPluginUtils implements SvcLogicJavaPlugin {
 
 	public SliPluginUtils() {}
 
-	public SliPluginUtils( Properties props ) {}
-
 
 
 	// ========== CONTEXT MEMORY FUNCTIONS ==========
diff --git a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtilsActivator.java b/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtilsActivator.java
deleted file mode 100644
index 89eb4f23b..000000000
--- a/sliPluginUtils/provider/src/main/java/org/onap/ccsdk/sli/core/slipluginutils/SliPluginUtilsActivator.java
+++ /dev/null
@@ -1,95 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- * ONAP : CCSDK
- * ================================================================================
- * Copyright (C) 2017 AT&T 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.ccsdk.sli.core.slipluginutils;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileReader;
-import java.io.IOException;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Properties;
-
-import org.osgi.framework.BundleActivator;
-import org.osgi.framework.BundleContext;
-import org.osgi.framework.ServiceRegistration;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class SliPluginUtilsActivator implements BundleActivator {
-    @SuppressWarnings("rawtypes") private List<ServiceRegistration> registrations = new LinkedList<ServiceRegistration>();
-
-    private static final Logger LOG = LoggerFactory.getLogger(SliPluginUtilsActivator.class);
-    private static final String SDNC_ROOT_DIR = "SDNC_CONFIG_DIR";
-    private static final String DME2_PROPERTIES_FILE_NAME = "dme2.properties";
-
-    @Override
-    public void start(BundleContext ctx) throws Exception {
-        SliPluginUtils plugin = new SliPluginUtils(new Properties());
-        LOG.info("Registering service " + plugin.getClass().getName());
-        registrations.add(ctx.registerService(plugin.getClass().getName(), plugin, null));
-
-        SliStringUtils sliStringUtils_Plugin = new SliStringUtils();
-        LOG.info("Registering service " + sliStringUtils_Plugin.getClass().getName());
-        registrations.add(ctx.registerService(sliStringUtils_Plugin.getClass().getName(), sliStringUtils_Plugin, null));
-
-        try {
-            String path = System.getenv(SDNC_ROOT_DIR) + File.separator + DME2_PROPERTIES_FILE_NAME;
-            DME2 dmePlugin = initDme2(path);
-            if (dmePlugin != null) {
-                LOG.info("Registering service " + dmePlugin.getClass().getName());
-                registrations.add(ctx.registerService(dmePlugin.getClass().getName(), dmePlugin, null));
-            }
-        } catch (Exception e) {
-            LOG.error("DME2 plugin could not be started", e);
-        }
-    }
-
-    public DME2 initDme2(String pathToDmeProperties) {
-        Properties dme2properties = new Properties();
-        String loadPropertiesErrorMessage = "Couldn't load DME2 properties at path " + pathToDmeProperties;
-        File dme2propertiesFile = new File(pathToDmeProperties);
-
-        try {
-            dme2properties.load(new FileReader(dme2propertiesFile));
-            String proxyUrlProperty = dme2properties.getProperty("proxyUrl");
-            String[] proxyUrls = proxyUrlProperty.split(",");
-            DME2 dmePlugin = new DME2(dme2properties.getProperty("aafUserName"), dme2properties.getProperty("aafPassword"), dme2properties.getProperty("envContext"), dme2properties.getProperty("routeOffer"), proxyUrls, dme2properties.getProperty("commonServiceVersion"));
-            dmePlugin.setPartner(dme2properties.getProperty("partner"));
-            return dmePlugin;
-        } catch (FileNotFoundException e) {
-            LOG.error(loadPropertiesErrorMessage);
-        } catch (IOException e) {
-            LOG.error(loadPropertiesErrorMessage);
-        }
-        LOG.error("Couldn't create DME2 plugin");
-        return null;
-    }
-
-    @Override
-    public void stop(BundleContext ctx) throws Exception {
-        for (@SuppressWarnings("rawtypes") ServiceRegistration registration : registrations) {
-            registration.unregister();
-            registration = null;
-        }
-    }
-}
diff --git a/sliPluginUtils/provider/src/main/resources/org/opendaylight/blueprint/slipluginutils-blueprint.xml b/sliPluginUtils/provider/src/main/resources/org/opendaylight/blueprint/slipluginutils-blueprint.xml
new file mode 100644
index 000000000..c0952d2a2
--- /dev/null
+++ b/sliPluginUtils/provider/src/main/resources/org/opendaylight/blueprint/slipluginutils-blueprint.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
+           xmlns:odl="http://opendaylight.org/xmlns/blueprint/v1.0.0"
+           odl:use-default-for-reference-types="true">
+
+
+    <bean id="sliPluginUtils" class="org.onap.ccsdk.sli.core.slipluginutils.SliPluginUtils" />
+    <service ref="sliPluginUtils" interface="org.onap.ccsdk.sli.core.slipluginutils.SliPluginUtils" />
+
+    <bean id="sliStringUtils" class="org.onap.ccsdk.sli.core.slipluginutils.SliStringUtils" />
+    <service ref="sliStringUtils" interface="org.onap.ccsdk.sli.core.slipluginutils.SliStringUtils" />
+
+    <bean id="dme2Properties" class="org.onap.ccsdk.sli.core.slipluginutils.Dme2PropertiesProvider" />
+    <bean id="dme2" class="org.onap.ccsdk.sli.core.slipluginutils.DME2">
+        <argument ref="dme2Properties" />
+    </bean>
+    <service ref="dme2" interface="org.onap.ccsdk.sli.core.slipluginutils.DME2" />
+
+</blueprint>
\ No newline at end of file