2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 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 * ============LICENSE_END=========================================================
24 package org.onap.appc.adapter.messaging.dmaap;
26 import com.att.eelf.configuration.EELFLogger;
27 import com.att.eelf.configuration.EELFManager;
28 import org.osgi.framework.BundleActivator;
29 import org.osgi.framework.BundleContext;
34 * This activator is used to initialize and terminate the connection pool to one or more providers.
36 * The CDP abstraction layer supports multiple types of providers, with each provider supporting multiple tenants. The
37 * "connection" to a specific tenant on a specific provider is represented by a "context" object. These context objects
38 * are authenticated to a specific tenant on the provider, but can be reused from one request to another. Contexts are
39 * slow to set up and are resource intensive, so they are cached. However, the contexts for a specific tenant on a
40 * specific provider must be cached separately.
43 * Activation of the bundle creates an empty cache which is organized first by provider type, then by tenant name, with
44 * the contents being an empty pool of contexts for that provider/tenant combination. The pool is created on first use,
45 * and retained for as long as the bundle is active.
48 * When the bundle is deactivated, the cache is torn down with all contexts being closed.
51 public class AppcDmaapAdapterActivator implements BundleActivator {
54 * The logger to be used
56 private static final EELFLogger LOG = EELFManager.getInstance().getLogger(AppcDmaapAdapterActivator.class);
59 * Called when this bundle is started so the Framework can perform the bundle-specific activities necessary to start
60 * this bundle. This method can be used to register services or to allocate any resources that this bundle needs.
62 * This method must complete and return to its caller in a timely manner.
65 * @param bundleContext
66 * The execution context of the bundle being started.
67 * @throws java.lang.Exception
68 * If this method throws an exception, this bundle is marked as stopped and the Framework will remove
69 * this bundle's listeners, unregister all services registered by this bundle, and release all services
70 * used by this bundle.
71 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
74 public void start(final BundleContext bundleContext) throws Exception {
75 LOG.info("Starting Bundle " + getName());
79 * Called when this bundle is stopped so the Framework can perform the bundle-specific activities necessary to stop
80 * the bundle. In general, this method should undo the work that the BundleActivator.start method started. There
81 * should be no active threads that were started by this bundle when this bundle returns. A stopped bundle must not
82 * call any Framework objects.
84 * This method must complete and return to its caller in a timely manner.
88 * The execution context of the bundle being stopped.
89 * @throws java.lang.Exception
90 * If this method throws an exception, the bundle is still marked as stopped, and the Framework will
91 * remove the bundle's listeners, unregister all services registered by the bundle, and release all
92 * services used by the bundle. *
93 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
96 public void stop(BundleContext ctx) throws Exception {
97 LOG.info("Stopped Bundle " + getName());
100 public String getName() {
101 return "DMaaP Adapter";