Dmaap micro service jar

[appc.git] / services / appc-dmaap-service / appc-dmaap-adapter-bundle / src / main / java / org / onap / appc / adapter / messaging / dmaap / AppcDmaapAdapterActivator.java

diff --git a/services/appc-dmaap-service/appc-dmaap-adapter-bundle/src/main/java/org/onap/appc/adapter/messaging/dmaap/AppcDmaapAdapterActivator.java b/services/appc-dmaap-service/appc-dmaap-adapter-bundle/src/main/java/org/onap/appc/adapter/messaging/dmaap/AppcDmaapAdapterActivator.java
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--- /dev/null
+++ b/services/appc-dmaap-service/appc-dmaap-adapter-bundle/src/main/java/org/onap/appc/adapter/messaging/dmaap/AppcDmaapAdapterActivator.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 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.
+ * 
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.adapter.messaging.dmaap;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+
+
+
+/**
+ * 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 AppcDmaapAdapterActivator implements BundleActivator {
+
+    /**
+     * The logger to be used
+     */
+    private static final EELFLogger LOG = EELFManager.getInstance().getLogger(AppcDmaapAdapterActivator.class);
+
+    /**
+     * 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 bundleContext
+     *            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(final BundleContext bundleContext) throws Exception {
+        LOG.info("Starting Bundle " + getName());
+    }
+
+    /**
+     * 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 ctx
+     *            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 ctx) throws Exception {
+        LOG.info("Stopped Bundle " + getName());
+    }
+
+    public String getName() {
+        return "DMaaP Adapter";
+    }
+
+}