Coverage report

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net.sf.tlc.kernel.TlcMicroKernel
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 1   
 /*
 2   
  * Created on Jun 7, 2005
 3   
  *
 4   
  * TheLittleContainer micro kernel.
 5   
  */
 6   
 package net.sf.tlc.kernel;
 7   
 
 8   
 import java.util.Iterator;
 9   
 
 10   
 import net.sf.tlc.core.LifecycleAware;
 11   
 import net.sf.tlc.core.impl.DefaultServiceLocator;
 12   
 
 13   
 /**
 14   
  * TheLittleContainer micro kernel.
 15   
  *
 16   
  * @author aisrael
 17   
  */
 18  0 
 public final class TlcMicroKernel extends DefaultServiceLocator implements LifecycleAware {
 19   
 
 20   
     private static final int STATE_UNKNOWN = 0;
 21   
 
 22   
     private static final int STATE_INITIALIZING = 1;
 23   
 
 24   
     private static final int STATE_RUNNING = 2;
 25   
 
 26   
     private static final int STATE_CLEANUP = 3;
 27   
 
 28   
     private static final int STATE_SHUTDOWN = 4;
 29   
 
 30  0 
     private int state = STATE_UNKNOWN;
 31   
 
 32   
     /**
 33   
      * @param state
 34   
      *            int
 35   
      */
 36   
     private void setState(final int state) {
 37  0 
         this.state = state;
 38  0 
     }
 39   
 
 40   
     /**
 41   
      * @return the state
 42   
      */
 43   
     private int getState() {
 44  0 
         return this.state;
 45   
     }
 46   
 
 47   
     /**
 48   
      * (non-Javadoc)
 49   
      *
 50   
      * @see net.sf.tlc.core.LifecycleAware#start()
 51   
      */
 52   
     public void start() {
 53  0 
         if (TlcMicroKernel.STATE_UNKNOWN != getState()) {
 54  0 
             throw new IllegalStateException("Invalid state!");
 55   
         }
 56  0 
         setState(TlcMicroKernel.STATE_INITIALIZING);
 57  0 
         startAllServices();
 58  0 
         setState(TlcMicroKernel.STATE_RUNNING);
 59  0 
     }
 60   
 
 61   
     /**
 62   
      *
 63   
      */
 64   
     private void startAllServices() {
 65  0 
         final Iterator i = servicesSet().iterator();
 66  0 
         while (i.hasNext()) {
 67  0 
             final Object o = i.next();
 68  0 
             if (o instanceof Lclass="keyword">ifecycleAware) {
 69  0 
                 ((LifecycleAware) o).start();
 70   
             }
 71   
         }
 72  0 
     }
 73   
 
 74   
     /**
 75   
      * (non-Javadoc)
 76   
      *
 77   
      * @see net.sf.tlc.core.LifecycleAware#isRunning()
 78   
      */
 79   
     public boolean isRunning() {
 80  0 
         return (TlcMicroKernel.STATE_RUNNING == getState());
 81   
     }
 82   
 
 83   
     /**
 84   
      * (non-Javadoc)
 85   
      *
 86   
      * @see net.sf.tlc.core.LifecycleAware#stop()
 87   
      */
 88   
     public void stop() {
 89  0 
         if (TlcMicroKernel.STATE_RUNNING != getState()) {
 90  0 
             throw new IllegalStateException("Invalid state!");
 91   
         }
 92  0 
         setState(TlcMicroKernel.STATE_CLEANUP);
 93  0 
         stopAllServices();
 94  0 
         waitForAllServices();
 95  0 
         setState(TlcMicroKernel.STATE_SHUTDOWN);
 96  0 
     }
 97   
 
 98   
     /**
 99   
      *
 100   
      */
 101   
     private void stopAllServices() {
 102  0 
         final Iterator i = servicesSet().iterator();
 103  0 
         while (i.hasNext()) {
 104  0 
             final Object o = i.next();
 105  0 
             if (o instanceof Lclass="keyword">ifecycleAware) {
 106  0 
                 ((LifecycleAware) o).stop();
 107   
             } else {
 108  0 
                 unregister(o);
 109   
             }
 110   
         }
 111  0 
     }
 112   
 
 113   
     /**
 114   
      *
 115   
      */
 116   
     private void waitForAllServices() {
 117  0 
         boolean stillRunning = true;
 118  0 
         while (stillRunning) {
 119  0 
             stillRunning = false;
 120  0 
             final Iterator i = servicesSet().iterator();
 121  0 
             while (i.hasNext()) {
 122  0 
                 final Object o = i.next();
 123  0 
                 if (o instanceof Lclass="keyword">ifecycleAware) {
 124  0 
                     stillRunning |= ((LifecycleAware) o).isRunning();
 125   
                 }
 126   
             }
 127   
         }
 128  0 
     }
 129   
 }

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