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 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 void setThreadCount(int threadCount) {
  73         this.threadCount = threadCount;
  74     }
  75
  76     @Override
  77     public Closeable getInstance() {
  78         assertNotNull(runtimeBeanRegistrator);
  79         if (instance == null) {
  80             if (oldInstance != null && recreate == false) {
  81                 // reuse old instance
  82                 instance = oldInstance;
  83             }
  84             if (instance == null) {
  85                 if (oldCloseable != null) {
  86                     try {
  87                         oldCloseable.close();
  88                     } catch (Exception e) {
  89                         throw new RuntimeException(e);
  90                     }
  91                 }
  92                 // close old threadpool and esp. unregister runtime beans
  93                 instance = new TestingScheduledThreadPoolImpl(
  94                         runtimeBeanRegistrator, threadCount);
  95             }
  96         }
  97         return instance;
  98     }
  99
 100     // getters and setters
 101     @Override
 102     public boolean isRecreate() {
 103         return recreate;
 104     }
 105
 106     @Override
 107     public void setRecreate(boolean recreate) {
 108         this.recreate = recreate;
 109     }
 110
 111     @Override
 112     public ModuleIdentifier getIdentifier() {
 113         return identifier;
 114     }
 115
 116
 117 }