Coverage Report - org.mule.module.reboot.MuleContainerWrapper
 
Classes in this File Line Coverage Branch Coverage Complexity
MuleContainerWrapper
0%
0/25
0%
0/8
0
 
 1  
 /*
 2  
  * $Id: MuleContainerWrapper.java 20208 2010-11-17 14:33:40Z dirk.olmes $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 
 11  
 package org.mule.module.reboot;
 12  
 
 13  
 import java.io.File;
 14  
 import java.lang.reflect.Constructor;
 15  
 import java.lang.reflect.Method;
 16  
 
 17  
 import org.tanukisoftware.wrapper.WrapperListener;
 18  
 import org.tanukisoftware.wrapper.WrapperManager;
 19  
 
 20  0
 public class MuleContainerWrapper implements WrapperListener
 21  
 {
 22  
     protected static final String CLASSNAME_MULE_CONTAINER = "org.mule.module.launcher.MuleContainer";
 23  
 
 24  
     /**
 25  
      * We can't reference MuleContainer class literal here, as it will fail to resolve at runtime.
 26  
      * Instead, make all calls anonymous through reflection, so we can safely pump up our new
 27  
      * classloader and make it the default one for downstream applications.
 28  
      */
 29  
     private Object mule;
 30  
 
 31  
     /*---------------------------------------------------------------
 32  
      * WrapperListener Methods
 33  
      *-------------------------------------------------------------*/
 34  
     /**
 35  
      * The start method is called when the WrapperManager is signaled by the native
 36  
      * wrapper code that it can start its application. This method call is expected
 37  
      * to return, so a new thread should be launched if necessary.
 38  
      *
 39  
      * @param args List of arguments used to initialize the application.
 40  
      * @return Any error code if the application should exit on completion of the
 41  
      *         start method. If there were no problems then this method should return
 42  
      *         null.
 43  
      */
 44  
     public Integer start(String[] args)
 45  
     {
 46  
         try
 47  
         {
 48  0
             ClassLoader muleSystemCl = createContainerSystemClassLoader();
 49  
 
 50  0
             Thread.currentThread().setContextClassLoader(muleSystemCl);
 51  
 
 52  0
             Class<?> muleClass = Thread.currentThread().getContextClassLoader().loadClass(CLASSNAME_MULE_CONTAINER);
 53  0
             Constructor<?> c = muleClass.getConstructor(String[].class);
 54  0
             mule = c.newInstance(new Object[] {args});
 55  0
             Method startMethod = muleClass.getMethod("start", boolean.class);
 56  0
             startMethod.invoke(mule, true);
 57  0
             return null;
 58  
         }
 59  0
         catch (Exception e)
 60  
         {
 61  0
             e.printStackTrace();
 62  0
             return 1;
 63  
         }
 64  
     }
 65  
 
 66  
     protected ClassLoader createContainerSystemClassLoader() throws Exception
 67  
     {
 68  0
         File muleHome = MuleContainerBootstrap.lookupMuleHome();
 69  0
         File muleBase = MuleContainerBootstrap.lookupMuleBase();
 70  0
         DefaultMuleClassPathConfig config = new DefaultMuleClassPathConfig(muleHome, muleBase);
 71  
 
 72  0
         return new MuleContainerSystemClassLoader(config);
 73  
     }
 74  
 
 75  
     /**
 76  
      * Called when the application is shutting down. The Wrapper assumes that this
 77  
      * method will return fairly quickly. If the shutdown code code could potentially
 78  
      * take a long time, then WrapperManager.signalStopping() should be called to
 79  
      * extend the timeout period. If for some reason, the stop method can not return,
 80  
      * then it must call WrapperManager.stopped() to avoid warning messages from the
 81  
      * Wrapper.
 82  
      *
 83  
      * @param exitCode The suggested exit code that will be returned to the OS when
 84  
      *            the JVM exits.
 85  
      * @return The exit code to actually return to the OS. In most cases, this should
 86  
      *         just be the value of exitCode, however the user code has the option of
 87  
      *         changing the exit code if there are any problems during shutdown.
 88  
      */
 89  
     public int stop(int exitCode)
 90  
     {
 91  
         try
 92  
         {
 93  0
             Method shutdownMethod = mule.getClass().getMethod("shutdown");
 94  0
             shutdownMethod.invoke(mule);
 95  
         }
 96  0
         catch (Throwable t)
 97  
         {
 98  
             // ignore
 99  0
         }
 100  
 
 101  0
         return exitCode;
 102  
     }
 103  
 
 104  
     /**
 105  
      * Called whenever the native wrapper code traps a system control signal against
 106  
      * the Java process. It is up to the callback to take any actions necessary.
 107  
      * Possible values are: WrapperManager.WRAPPER_CTRL_C_EVENT,
 108  
      * WRAPPER_CTRL_CLOSE_EVENT, WRAPPER_CTRL_LOGOFF_EVENT, or
 109  
      * WRAPPER_CTRL_SHUTDOWN_EVENT
 110  
      *
 111  
      * @param event The system control signal.
 112  
      */
 113  
     public void controlEvent(int event)
 114  
     {
 115  0
         if (WrapperManager.isControlledByNativeWrapper())
 116  
         {
 117  
             // The Wrapper will take care of this event
 118  
         }
 119  
         else
 120  
         {
 121  
             // We are not being controlled by the Wrapper, so
 122  
             // handle the event ourselves.
 123  0
             if ((event == WrapperManager.WRAPPER_CTRL_C_EVENT)
 124  
                 || (event == WrapperManager.WRAPPER_CTRL_CLOSE_EVENT)
 125  
                 || (event == WrapperManager.WRAPPER_CTRL_SHUTDOWN_EVENT))
 126  
             {
 127  0
                 WrapperManager.stop(0);
 128  
             }
 129  
         }
 130  0
     }
 131  
 }