Simplify DTCL registration support classes

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / DelayedListenerRegistration.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DelayedListenerRegistration.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DelayedListenerRegistration.java
deleted file mode 100644 (file)
index e1c9f0b..0000000
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DelayedListenerRegistration.java
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 2015 Brocade Communications Systems, Inc. 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.cluster.datastore;
-
-import akka.actor.ActorRef;
-import java.util.EventListener;
-import javax.annotation.concurrent.GuardedBy;
-import org.opendaylight.controller.cluster.datastore.messages.ListenerRegistrationMessage;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-
-class DelayedListenerRegistration<L extends EventListener, M extends ListenerRegistrationMessage>
-        implements ListenerRegistration<L> {
-    private final M registrationMessage;
-    private final ActorRef registrationActor;
-
-    @GuardedBy("this")
-    private boolean closed;
-
-    protected DelayedListenerRegistration(M registrationMessage, ActorRef registrationActor) {
-        this.registrationMessage = registrationMessage;
-        this.registrationActor = registrationActor;
-    }
-
-    M getRegistrationMessage() {
-        return registrationMessage;
-    }
-
-    synchronized void doRegistration(final AbstractDataListenerSupport<L, M> support) {
-        if (!closed) {
-            support.doRegistration(registrationMessage, registrationActor);
-        }
-    }
-
-    @Override
-    public L getInstance() {
-        // ObjectRegistration annotates this method as @Nonnull but we could return null if the delegate is not set yet.
-        // In reality, we do not and should not ever call this method on DelayedListenerRegistration instances anyway
-        // but, since we have to provide an implementation to satisfy the interface, we throw
-        // UnsupportedOperationException to honor the API contract of not returning null and to avoid a FindBugs error
-        // for possibly returning null.
-        throw new UnsupportedOperationException(
-                "getInstance should not be called on this instance since it could be null");
-    }
-
-    @Override
-    public synchronized void close() {
-        closed = true;
-    }
-}