opendaylight/config/config-manager/src/test/java/org/opendaylight/controller/config/manager/testingservices/scheduledthreadpool/TestingScheduledThreadPoolModule.java

   1 /*
   2  * Copyright (c) 2013 Cisco 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 package org.opendaylight.controller.config.manager.testingservices.scheduledthreadpool;
   9
  10 import static com.google.common.base.Preconditions.checkState;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertNull;
  13
  14 import java.io.Closeable;
  15
  16 import javax.annotation.Nullable;
  17
  18 import org.opendaylight.controller.config.api.ModuleIdentifier;
  19 import org.opendaylight.controller.config.api.RuntimeBeanRegistratorAwareModule;
  20 import org.opendaylight.controller.config.api.runtime.RootRuntimeBeanRegistrator;
  21 import org.opendaylight.controller.config.manager.testingservices.seviceinterface.TestingScheduledThreadPoolServiceInterface;
  22 import org.opendaylight.controller.config.spi.Module;
  23
  24 /**
  25  * This class has two exported interfaces and two runtime beans. Recreation is
  26  * triggered by setting Recreate attribute to true.
  27  */
  28 public class TestingScheduledThreadPoolModule implements Module,
  29         TestingScheduledThreadPoolConfigBeanMXBean,
  30         RuntimeBeanRegistratorAwareModule,
  31         TestingScheduledThreadPoolServiceInterface {
  32
  33     private final ModuleIdentifier identifier;
  34     @Nullable
  35     private final AutoCloseable oldCloseable;
  36     @Nullable
  37     private final TestingScheduledThreadPoolImpl oldInstance;
  38
  39     private final int threadCount = 10;
  40     private TestingScheduledThreadPoolImpl instance;
  41     private RootRuntimeBeanRegistrator runtimeBeanRegistrator;
  42     private boolean recreate;
  43
  44     public TestingScheduledThreadPoolModule(ModuleIdentifier identifier,
  45             @Nullable AutoCloseable oldCloseable,
  46             @Nullable TestingScheduledThreadPoolImpl oldInstance) {
  47         this.identifier = identifier;
  48         this.oldCloseable = oldCloseable;
  49         this.oldInstance = oldInstance;
  50     }
  51
  52     @Override
  53     public void setRuntimeBeanRegistrator(
  54             RootRuntimeBeanRegistrator runtimeBeanRegistrator) {
  55         this.runtimeBeanRegistrator = runtimeBeanRegistrator;
  56     }
  57
  58     @Override
  59     public void validate() {
  60         assertNull(runtimeBeanRegistrator);
  61         // check thread count
  62         checkState(threadCount > 0,
  63                 "Parameter 'ThreadCount' must be greater than 0");
  64     }
  65
  66     @Override
  67     public int getThreadCount() {
  68         return threadCount;
  69     }
  70
  71     @Override
  72     public Closeable getInstance() {
  73         assertNotNull(runtimeBeanRegistrator);
  74         if (instance == null) {
  75             if (oldInstance != null && recreate == false) {
  76                 // reuse old instance
  77                 instance = oldInstance;
  78             }
  79             if (instance == null) {
  80                 if (oldCloseable != null) {
  81                     try {
  82                         oldCloseable.close();
  83                     } catch (Exception e) {
  84                         throw new RuntimeException(e);
  85                     }
  86                 }
  87                 // close old threadpool and esp. unregister runtime beans
  88                 instance = new TestingScheduledThreadPoolImpl(
  89                         runtimeBeanRegistrator, threadCount);
  90             }
  91         }
  92         return instance;
  93     }
  94
  95     // getters and setters
  96     @Override
  97     public boolean isRecreate() {
  98         return recreate;
  99     }
 100
 101     @Override
 102     public void setRecreate(boolean recreate) {
 103         this.recreate = recreate;
 104     }
 105
 106     @Override
 107     public ModuleIdentifier getIdentifier() {
 108         return identifier;
 109     }
 110
 111
 112 }