Introduce DOMEntityOwnershipService replacement

[controller.git] / opendaylight / md-sal / eos-dom-akka / src / main / java / org / opendaylight / controller / eos / akka / bootstrap / EOSMain.java

diff --git a/opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/bootstrap/EOSMain.java b/opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/bootstrap/EOSMain.java
new file mode 100644 (file)
index 0000000..54f9a6b
--- /dev/null
+++ b/opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/bootstrap/EOSMain.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2021 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.eos.akka.bootstrap;
+
+import akka.actor.typed.ActorRef;
+import akka.actor.typed.Behavior;
+import akka.actor.typed.javadsl.AbstractBehavior;
+import akka.actor.typed.javadsl.ActorContext;
+import akka.actor.typed.javadsl.Behaviors;
+import akka.actor.typed.javadsl.Receive;
+import akka.cluster.typed.Cluster;
+import akka.cluster.typed.ClusterSingleton;
+import akka.cluster.typed.SingletonActor;
+import org.opendaylight.controller.eos.akka.bootstrap.command.BootstrapCommand;
+import org.opendaylight.controller.eos.akka.bootstrap.command.GetRunningContext;
+import org.opendaylight.controller.eos.akka.bootstrap.command.RunningContext;
+import org.opendaylight.controller.eos.akka.bootstrap.command.Terminate;
+import org.opendaylight.controller.eos.akka.owner.checker.OwnerStateChecker;
+import org.opendaylight.controller.eos.akka.owner.checker.command.StateCheckerCommand;
+import org.opendaylight.controller.eos.akka.owner.supervisor.OwnerSyncer;
+import org.opendaylight.controller.eos.akka.owner.supervisor.command.OwnerSupervisorCommand;
+import org.opendaylight.controller.eos.akka.registry.candidate.CandidateRegistry;
+import org.opendaylight.controller.eos.akka.registry.candidate.command.CandidateRegistryCommand;
+import org.opendaylight.controller.eos.akka.registry.listener.type.EntityTypeListenerRegistry;
+import org.opendaylight.controller.eos.akka.registry.listener.type.command.TypeListenerRegistryCommand;
+import org.opendaylight.yangtools.yang.common.Empty;
+
+public final class EOSMain extends AbstractBehavior<BootstrapCommand> {
+    private final ActorRef<TypeListenerRegistryCommand> listenerRegistry;
+    private final ActorRef<CandidateRegistryCommand> candidateRegistry;
+    private final ActorRef<OwnerSupervisorCommand> ownerSupervisor;
+    private final ActorRef<StateCheckerCommand> ownerStateChecker;
+
+    private EOSMain(final ActorContext<BootstrapCommand> context) {
+        super(context);
+
+        final String role = Cluster.get(context.getSystem()).selfMember().getRoles().iterator().next();
+
+        listenerRegistry = context.spawn(EntityTypeListenerRegistry.create(role), "ListenerRegistry");
+        candidateRegistry = context.spawn(CandidateRegistry.create(), "CandidateRegistry");
+        ownerStateChecker = context.spawn(OwnerStateChecker.create(role), "OwnerStateChecker");
+
+        final ClusterSingleton clusterSingleton = ClusterSingleton.get(context.getSystem());
+        // start the initial sync behavior that switches to the regular one after syncing
+        ownerSupervisor = clusterSingleton.init(SingletonActor.of(OwnerSyncer.create(), "OwnerSupervisor"));
+    }
+
+    public static Behavior<BootstrapCommand> create() {
+        return Behaviors.setup(EOSMain::new);
+    }
+
+    @Override
+    public Receive<BootstrapCommand> createReceive() {
+        return newReceiveBuilder()
+                .onMessage(GetRunningContext.class, this::onGetRunningContext)
+                .onMessage(Terminate.class, this::onTerminate)
+                .build();
+    }
+
+    private Behavior<BootstrapCommand> onGetRunningContext(final GetRunningContext request) {
+        request.getReplyTo().tell(
+                new RunningContext(listenerRegistry, candidateRegistry, ownerStateChecker, ownerSupervisor));
+        return this;
+    }
+
+    private Behavior<BootstrapCommand> onTerminate(final Terminate request) {
+        request.getReplyTo().tell(Empty.getInstance());
+        return Behaviors.stopped();
+    }
+}