--- /dev/null
+/*
+ * 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.mdsal.replicate.netty;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.UnknownHostException;
+import java.time.Duration;
+import org.opendaylight.mdsal.dom.api.DOMDataBroker;
+import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
+import org.opendaylight.yangtools.concepts.AbstractRegistration;
+import org.opendaylight.yangtools.concepts.Registration;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.metatype.annotations.AttributeDefinition;
+import org.osgi.service.metatype.annotations.Designate;
+import org.osgi.service.metatype.annotations.ObjectClassDefinition;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@Component(immediate = true, configurationPid = "org.opendaylight.mdsal.replicate.netty.sink")
+@Designate(ocd = NettyReplicationSink.Config.class)
+public final class NettyReplicationSink {
+ private static final Logger LOG = LoggerFactory.getLogger(NettyReplicationSink.class);
+
+ @ObjectClassDefinition
+ public @interface Config {
+ @AttributeDefinition(name = "enabled")
+ boolean enabled() default false;
+
+ @AttributeDefinition(name = "source-host")
+ String sourceHost() default "127.0.0.1";
+
+ @AttributeDefinition(name = "source-port")
+ int sourcePort() default 9999;
+
+ @AttributeDefinition(name = "reconnect-delay-millis")
+ int reconnectDelayMillis() default 3000;
+
+ @AttributeDefinition(name = "keepalive-interval-seconds")
+ int keepAliveIntervalSeconds() default 10;
+
+ @AttributeDefinition(name = "max-missed-keepalives")
+ int maxMissedKeepalives() default 5;
+ }
+
+ @Reference
+ private BootstrapSupport bootstrapSupport;
+
+ @Reference
+ private DOMDataBroker dataBroker;
+
+ @Reference
+ private ClusterSingletonServiceProvider singletonService;
+
+ private static final class Disabled extends AbstractRegistration {
+ @Override
+ protected void removeRegistration() {
+ // no-op
+ }
+ }
+
+ private NettyReplicationSink() {
+
+ }
+
+ @Activate
+ void activate(final Config config) throws UnknownHostException {
+ final InetAddress sourceAddress = InetAddress.getByName(config.sourceHost());
+ final Duration reconnectDelay = Duration.ofMillis(config.reconnectDelayMillis());
+ final Duration keepaliveInterval = Duration.ofSeconds(config.keepAliveIntervalSeconds());
+
+ createSink(bootstrapSupport, dataBroker, singletonService, config.enabled(), sourceAddress,
+ config.sourcePort(), reconnectDelay, keepaliveInterval, config.maxMissedKeepalives());
+ }
+
+ static Registration createSink(final BootstrapSupport bootstrap, final DOMDataBroker broker,
+ final ClusterSingletonServiceProvider singleton, final boolean enabled,
+ final InetAddress sourceAddress, final int sourcePort, final Duration reconnectDelay,
+ final Duration keepaliveInterval, final int maxMissedKeepalives) {
+ LOG.debug("Sink {}", enabled ? "enabled" : "disabled");
+ checkArgument(maxMissedKeepalives > 0, "max-missed-keepalives %s must be greater than 0", maxMissedKeepalives);
+ return enabled ? singleton.registerClusterSingletonService(new SinkSingletonService(bootstrap,
+ broker, new InetSocketAddress(sourceAddress, sourcePort), reconnectDelay, keepaliveInterval,
+ maxMissedKeepalives)) : new Disabled();
+ }
+}