Convert messagebus-impl to OSGi DS

[controller.git] / opendaylight / md-sal / messagebus-impl / src / main / java / org / opendaylight / controller / messagebus / app / impl / OSGiEventSourceRegistry.java

diff --git a/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/OSGiEventSourceRegistry.java b/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/OSGiEventSourceRegistry.java
new file mode 100644 (file)
index 0000000..29389ab
--- /dev/null
+++ b/opendaylight/md-sal/messagebus-impl/src/main/java/org/opendaylight/controller/messagebus/app/impl/OSGiEventSourceRegistry.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.messagebus.app.impl;
+
+import com.google.common.annotations.Beta;
+import org.opendaylight.controller.messagebus.spi.EventSource;
+import org.opendaylight.controller.messagebus.spi.EventSourceRegistration;
+import org.opendaylight.controller.messagebus.spi.EventSourceRegistry;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.binding.api.RpcConsumerRegistry;
+import org.opendaylight.mdsal.binding.api.RpcProviderService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@Beta
+@Component(immediate = true)
+public final class OSGiEventSourceRegistry implements EventSourceRegistry {
+    private static final Logger LOG = LoggerFactory.getLogger(OSGiEventSourceRegistry.class);
+
+    @Reference
+    DataBroker dataBroker;
+    @Reference
+    RpcConsumerRegistry rpcConsumerRegistry;
+    @Reference
+    RpcProviderService rpcProviderService;
+
+    private EventSourceTopology delegate;
+
+    @Override
+    public <T extends EventSource> EventSourceRegistration<T> registerEventSource(final T eventSource) {
+        return delegate.registerEventSource(eventSource);
+    }
+
+    @Override
+    public void close() {
+        // Intentiational no-op
+    }
+
+    @Activate
+    void activate() {
+        delegate = new EventSourceTopology(dataBroker, rpcProviderService, rpcConsumerRegistry);
+        LOG.info("Event Source Registry started");
+    }
+
+    @Deactivate
+    void deactivate() {
+        LOG.info("Event Source Registry stopping");
+        delegate.close();
+        LOG.info("Event Source Registry stopped");
+    }
+}