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21 
22 
23 
24 package com.sun.star.lib.uno.environments.remote;
25 
26 /**
27  * This class implements a java thread pool.
28  * <p>
29  * @version 	$Revision: 1.13 $ $ $Date: 2008-04-11 11:20:22 $
30  * @author 	    Kay Ramme
31  * @see         com.sun.star.uno.UnoRuntime
32  * @see         com.sun.star.lib.uno.environments.remote.ThreadPool
33  * @see         com.sun.star.lib.uno.environments.remote.IThreadPool
34  * @see         com.sun.star.lib.uno.environments.remote.Job
35  * @see         com.sun.star.lib.uno.environments.remote.JobQueue
36  * @since       UDK1.0
37  */
38 public class JavaThreadPool implements IThreadPool {
39 	/**
40 	 * When set to true, enables various debugging output.
41 	 */
42 	private static final boolean DEBUG = false;
43 
44 	JavaThreadPoolFactory _javaThreadPoolFactory;
45 
JavaThreadPool(JavaThreadPoolFactory javaThreadPoolFactory)46 	JavaThreadPool(JavaThreadPoolFactory javaThreadPoolFactory) {
47 		_javaThreadPoolFactory = javaThreadPoolFactory;
48 	}
49 
getThreadId()50     public ThreadId getThreadId() {
51         return JavaThreadPoolFactory.getThreadId();
52     }
53 
attach( ThreadId threadId )54     public Object attach( ThreadId threadId )
55     {
56 		if(DEBUG) System.err.println("##### " + getClass().getName() + ".attach - id:" + threadId);
57 		JobQueue jobQueue = _javaThreadPoolFactory.getJobQueue(threadId);
58 		if(jobQueue == null)
59 			jobQueue = new JobQueue(_javaThreadPoolFactory, threadId, false);
60 
61 		// acquiring the jobQueue registers it at the ThreadPoolFactory
62 		jobQueue.acquire();
63         return jobQueue;
64     }
65 
attach()66 	public void attach() {
67         attach( getThreadId() );
68 	}
69 
detach( Object handle, ThreadId id )70 	public void detach( Object handle, ThreadId id )
71     {
72         ((JobQueue)handle).release();
73     }
74 
detach()75 	public void detach() {
76         ThreadId threadId =  getThreadId();
77         detach(_javaThreadPoolFactory.getJobQueue(threadId), threadId );
78 	}
79 
80 
enter( )81 	public Object enter( ) throws Throwable {
82         ThreadId threadId = getThreadId();
83         return enter( _javaThreadPoolFactory.getJobQueue( threadId ), threadId  );
84 	}
85 
enter( Object handle, ThreadId threadId )86 	public Object enter( Object handle, ThreadId threadId ) throws Throwable {
87 		return ((JobQueue)handle).enter(this);
88 	}
89 
putJob(Job job)90 	public void putJob(Job job) {
91 		if (!job.isRequest() || job.isSynchronous()) {
92 			JobQueue jobQueue = _javaThreadPoolFactory.getJobQueue(job.getThreadId());
93 
94 			// this has not be synchronized, cause
95 			// sync jobs can only come over one bridge
96 			// (cause the thread blocks on other side)
97 			if(jobQueue == null)
98 				jobQueue = new JobQueue(_javaThreadPoolFactory, job.getThreadId(), true);
99 
100 			// put job acquires the queue and registers it at the ThreadPoolFactory
101 			jobQueue.putJob(job, this);
102 		}
103 		else {
104 			// this has to be synchronized, cause
105 			// async jobs of the same thread can come
106 			// over different bridges
107 			synchronized(_javaThreadPoolFactory) {
108 				JobQueue async_jobQueue = _javaThreadPoolFactory.getAsyncJobQueue(job.getThreadId());
109 
110 				// ensure there is jobQueue
111 				if(async_jobQueue == null) // so, there is really no async queue
112 					async_jobQueue = new JobQueue(_javaThreadPoolFactory, job.getThreadId());
113 
114 				// put job acquires the queue and registers it at the ThreadPoolFactory
115 				async_jobQueue.putJob(job, this);
116 			}
117 		}
118 	}
119 
dispose(Throwable throwable)120 	public void dispose(Throwable throwable) {
121 		if(DEBUG) System.err.println("##### " + getClass().getName() + ".dispose:" + throwable);
122 
123 		_javaThreadPoolFactory.dispose(this, throwable);
124 	}
125 
destroy()126 	public void destroy() {
127 	}
128 }
129