2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.openecomp.appc.adapter.iaas;
24 import org.openecomp.appc.Constants;
25 import org.openecomp.appc.adapter.iaas.impl.ProviderAdapterImpl;
26 import org.openecomp.appc.configuration.Configuration;
27 import org.openecomp.appc.configuration.ConfigurationFactory;
28 import org.openecomp.appc.i18n.Msg;
29 import org.osgi.framework.BundleActivator;
30 import org.osgi.framework.BundleContext;
31 import org.osgi.framework.ServiceRegistration;
33 import com.att.eelf.configuration.EELFLogger;
34 import com.att.eelf.configuration.EELFManager;
37 * This activator is used to initialize and terminate the connection pool to one or more providers.
39 * The CDP abstraction layer supports multiple types of providers, with each provider supporting multiple tenants. The
40 * "connection" to a specific tenant on a specific provider is represented by a "context" object. These context objects
41 * are authenticated to a specific tenant on the provider, but can be reused from one request to another. Contexts are
42 * slow to set up and are resource intensive, so they are cached. However, the contexts for a specific tenant on a
43 * specific provider must be cached separately.
46 * Activation of the bundle creates an empty cache which is organized first by provider type, then by tenant name, with
47 * the contents being an empty pool of contexts for that provider/tenant combination. The pool is created on first use,
48 * and retained for as long as the bundle is active.
51 * When the bundle is deactivated, the cache is torn down with all contexts being closed.
54 public class AppcProviderAdapterActivator implements BundleActivator {
57 * The bundle registration
59 private ServiceRegistration registration = null;
62 * The reference to the actual implementation object that implements the services
64 private ProviderAdapter adapter;
67 * The logger to be used
69 private static final EELFLogger logger = EELFManager.getInstance().getLogger(AppcProviderAdapterActivator.class);
72 * The configuration object used to configure this bundle
74 private Configuration configuration;
77 * Called when this bundle is started so the Framework can perform the bundle-specific activities necessary to start
78 * this bundle. This method can be used to register services or to allocate any resources that this bundle needs.
80 * This method must complete and return to its caller in a timely manner.
84 * The execution context of the bundle being started.
85 * @throws java.lang.Exception
86 * If this method throws an exception, this bundle is marked as stopped and the Framework will remove
87 * this bundle's listeners, unregister all services registered by this bundle, and release all services
88 * used by this bundle.
89 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
92 public void start(BundleContext context) throws Exception {
93 logger.info("Starting bundle " + getName());
95 configuration = ConfigurationFactory.getConfiguration();
96 String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
97 logger.info(Msg.COMPONENT_INITIALIZING, appName, "IAAS adapter");
99 adapter = new ProviderAdapterImpl(configuration.getProperties());
101 logger.error("Error initializing APPC IAAS ProviderAdapterImpl",t);
105 if (registration == null) {
106 logger.info(Msg.REGISTERING_SERVICE, appName, adapter.getAdapterName(),
107 ProviderAdapter.class.getSimpleName());
108 registration = context.registerService(ProviderAdapter.class, adapter, null);
111 logger.info(Msg.COMPONENT_INITIALIZED, appName, "IAAS adapter");
115 * Called when this bundle is stopped so the Framework can perform the bundle-specific activities necessary to stop
116 * the bundle. In general, this method should undo the work that the BundleActivator.start method started. There
117 * should be no active threads that were started by this bundle when this bundle returns. A stopped bundle must not
118 * call any Framework objects.
120 * This method must complete and return to its caller in a timely manner.
124 * The execution context of the bundle being stopped.
125 * @throws java.lang.Exception
126 * If this method throws an exception, the bundle is still marked as stopped, and the Framework will
127 * remove the bundle's listeners, unregister all services registered by the bundle, and release all
128 * services used by the bundle. *
129 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
132 public void stop(BundleContext context) throws Exception {
133 logger.info("Stopping bundle " + getName());
135 if (registration != null) {
136 String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
137 logger.info(Msg.COMPONENT_TERMINATING, appName, "IAAS adapter");
138 logger.info(Msg.UNREGISTERING_SERVICE, appName, adapter.getAdapterName());
139 registration.unregister();
141 logger.info(Msg.COMPONENT_TERMINATED, appName, "IAAS adapter");
145 public String getName() {
146 return "APPC IaaS adapter";