opendaylight/md-sal/sal-inmemory-datastore/src/test/java/org/opendaylight/controller/md/sal/dom/store/impl/TestDCLExecutorService.java

   1 /*
   2  * Copyright (c) 2014 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.md.sal.dom.store.impl;
  10
  11 import java.util.concurrent.ExecutorService;
  12
  13 import com.google.common.util.concurrent.ForwardingExecutorService;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15
  16 /**
  17  * A forwarding Executor used by unit tests for DataChangeListener notifications
  18  *
  19  * @author Thomas Pantelis
  20  */
  21 public class TestDCLExecutorService extends ForwardingExecutorService {
  22
  23     // Start with a same thread executor to avoid timing issues during test setup.
  24     private volatile ExecutorService currentExecutor = MoreExecutors.sameThreadExecutor();
  25
  26     // The real executor to use when test setup is complete.
  27     private final ExecutorService postSetupExecutor;
  28
  29
  30     public TestDCLExecutorService( ExecutorService postSetupExecutor ) {
  31         this.postSetupExecutor = postSetupExecutor;
  32     }
  33
  34     @Override
  35     protected ExecutorService delegate() {
  36         return currentExecutor;
  37     }
  38
  39     public void afterTestSetup() {
  40         // Test setup complete - switch to the real executor.
  41         currentExecutor = postSetupExecutor;
  42     }
  43 }