2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.onap.appc.adapter.iaas;
27 import org.onap.appc.Constants;
28 import org.onap.appc.adapter.iaas.impl.ProviderAdapterImpl;
29 import org.onap.appc.configuration.Configuration;
30 import org.onap.appc.configuration.ConfigurationFactory;
31 import org.onap.appc.i18n.Msg;
32 import org.osgi.framework.BundleActivator;
33 import org.osgi.framework.BundleContext;
34 import org.osgi.framework.ServiceRegistration;
35 import com.att.eelf.configuration.EELFLogger;
36 import com.att.eelf.configuration.EELFManager;
39 * This activator is used to initialize and terminate the connection pool to one or more providers.
41 * The CDP abstraction layer supports multiple types of providers, with each provider supporting multiple tenants. The
42 * "connection" to a specific tenant on a specific provider is represented by a "context" object. These context objects
43 * are authenticated to a specific tenant on the provider, but can be reused from one request to another. Contexts are
44 * slow to set up and are resource intensive, so they are cached. However, the contexts for a specific tenant on a
45 * specific provider must be cached separately.
48 * Activation of the bundle creates an empty cache which is organized first by provider type, then by tenant name, with
49 * the contents being an empty pool of contexts for that provider/tenant combination. The pool is created on first use,
50 * and retained for as long as the bundle is active.
53 * When the bundle is deactivated, the cache is torn down with all contexts being closed.
56 public class AppcProviderAdapterActivator implements BundleActivator {
59 * The bundle registration
61 private ServiceRegistration registration = null;
64 * The reference to the actual implementation object that implements the services
66 private ProviderAdapter adapter;
69 * The logger to be used
71 private static final EELFLogger logger = EELFManager.getInstance().getLogger(AppcProviderAdapterActivator.class);
74 * The configuration object used to configure this bundle
76 private Configuration configuration;
79 * Called when this bundle is started so the Framework can perform the bundle-specific activities necessary to start
80 * this bundle. This method can be used to register services or to allocate any resources that this bundle needs.
82 * This method must complete and return to its caller in a timely manner.
85 * @param context The execution context of the bundle being started.
86 * @throws java.lang.Exception If this method throws an exception, this bundle is marked as stopped and the
87 * Framework will remove this bundle's listeners, unregister all services registered by this bundle, and
88 * release all services 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());
100 } catch (Exception e) {
101 logger.error("Error initializing APPC IAAS ProviderAdapterImpl", e);
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.
123 * @param context The execution context of the bundle being stopped.
124 * @throws java.lang.Exception If this method throws an exception, the bundle is still marked as stopped, and the
125 * Framework will remove the bundle's listeners, unregister all services registered by the bundle, and
126 * release all services used by the bundle. *
127 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
130 public void stop(BundleContext context) throws Exception {
131 logger.info("Stopping bundle " + getName());
133 if (registration != null) {
134 String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
135 logger.info(Msg.COMPONENT_TERMINATING, appName, "IAAS adapter");
136 logger.info(Msg.UNREGISTERING_SERVICE, appName, adapter.getAdapterName());
137 registration.unregister();
139 logger.info(Msg.COMPONENT_TERMINATED, appName, "IAAS adapter");
143 public String getName() {
144 return "APPC IaaS adapter";