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