--- /dev/null
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.adapter.chef;
+
+import org.onap.appc.Constants;
+import org.onap.appc.adapter.chef.impl.ChefAdapterImpl;
+import org.onap.appc.configuration.Configuration;
+import org.onap.appc.configuration.ConfigurationFactory;
+import org.onap.appc.i18n.Msg;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+
+/**
+ * This activator is used to initialize and terminate the connection pool to one or more providers.
+ * <p>
+ * The CDP abstraction layer supports multiple types of providers, with each provider supporting multiple tenants. The
+ * "connection" to a specific tenant on a specific provider is represented by a "context" object. These context objects
+ * are authenticated to a specific tenant on the provider, but can be reused from one request to another. Contexts are
+ * slow to set up and are resource intensive, so they are cached. However, the contexts for a specific tenant on a
+ * specific provider must be cached separately.
+ * </p>
+ * <p>
+ * Activation of the bundle creates an empty cache which is organized first by provider type, then by tenant name, with
+ * the contents being an empty pool of contexts for that provider/tenant combination. The pool is created on first use,
+ * and retained for as long as the bundle is active.
+ * </p>
+ * <p>
+ * When the bundle is deactivated, the cache is torn down with all contexts being closed.
+ * </p>
+ */
+public class ChefActivator implements BundleActivator {
+
+ /**
+ * The bundle registration
+ */
+ private ServiceRegistration registration = null;
+
+ /**
+ * The reference to the actual implementation object that implements the services
+ */
+ private ChefAdapter adapter;
+
+ /**
+ * The logger to be used
+ */
+ private final EELFLogger logger = EELFManager.getInstance().getLogger(ChefActivator.class);
+
+ /**
+ * The configuration object used to configure this bundle
+ */
+ private Configuration configuration;
+
+ /**
+ * Called when this bundle is started so the Framework can perform the bundle-specific activities necessary to start
+ * this bundle. This method can be used to register services or to allocate any resources that this bundle needs.
+ * <p>
+ * This method must complete and return to its caller in a timely manner.
+ * </p>
+ *
+ * @param context
+ * The execution context of the bundle being started.
+ * @throws java.lang.Exception
+ * If this method throws an exception, this bundle is marked as stopped and the Framework will remove
+ * this bundle's listeners, unregister all services registered by this bundle, and release all services
+ * used by this bundle.
+ * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+ */
+ @Override
+ public void start(BundleContext context) throws Exception {
+ logger.info("Starting bundle " + getName());
+ configuration = ConfigurationFactory.getConfiguration();
+ String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
+ logger.info(Msg.COMPONENT_INITIALIZING, appName, "chef adapter");
+ adapter = new ChefAdapterImpl();
+ if (registration == null) {
+ logger.info(Msg.REGISTERING_SERVICE, appName, adapter.getAdapterName(),
+ ChefAdapter.class.getSimpleName());
+ registration = context.registerService(ChefAdapter.class, adapter, null);
+ }
+
+ logger.info(Msg.COMPONENT_INITIALIZED, appName, "CHEF adapter");
+ }
+
+ /**
+ * Called when this bundle is stopped so the Framework can perform the bundle-specific activities necessary to stop
+ * the bundle. In general, this method should undo the work that the BundleActivator.start method started. There
+ * should be no active threads that were started by this bundle when this bundle returns. A stopped bundle must not
+ * call any Framework objects.
+ * <p>
+ * This method must complete and return to its caller in a timely manner.
+ * </p>
+ *
+ * @param context
+ * The execution context of the bundle being stopped.
+ * @throws java.lang.Exception
+ * If this method throws an exception, the bundle is still marked as stopped, and the Framework will
+ * remove the bundle's listeners, unregister all services registered by the bundle, and release all
+ * services used by the bundle. *
+ * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+ */
+ @Override
+ public void stop(BundleContext context) throws Exception {
+ logger.info("Stopping bundle " + getName());
+
+ if (registration != null) {
+ String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
+ logger.info(Msg.COMPONENT_TERMINATING, appName, "CHEF adapter");
+ logger.info(Msg.UNREGISTERING_SERVICE, appName, adapter.getAdapterName());
+ registration.unregister();
+ registration = null;
+ logger.info(Msg.COMPONENT_TERMINATED, appName, "CHEF adapter");
+ }
+ }
+
+ public String getName() {
+ return "APPC IaaS adapter";
+ }
+
+}
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