ListenerThreadImpl.java revision 608:7e06bf1dcb09 
1/*
2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.corba.se.impl.transport;
27
28import java.io.IOException;
29
30import com.sun.corba.se.pept.transport.Acceptor;
31import com.sun.corba.se.pept.transport.ListenerThread;
32import com.sun.corba.se.pept.transport.Selector;
33
34import com.sun.corba.se.spi.orb.ORB;
35import com.sun.corba.se.spi.orbutil.threadpool.Work;
36
37import com.sun.corba.se.impl.orbutil.ORBUtility;
38
39
40public class ListenerThreadImpl
41    implements
42        ListenerThread,
43        Work
44{
45    private ORB orb;
46    private Acceptor acceptor;
47    private Selector selector;
48    private boolean keepRunning;
49    private long enqueueTime;
50
51    public ListenerThreadImpl(ORB orb, Acceptor acceptor, Selector selector)
52    {
53        this.orb = orb;
54        this.acceptor = acceptor;
55        this.selector = selector;
56        keepRunning = true;
57    }
58
59    ////////////////////////////////////////////////////
60    //
61    // ListenerThread methods.
62    //
63
64    public Acceptor getAcceptor()
65    {
66        return acceptor;
67    }
68
69    public void close()
70    {
71        if (orb.transportDebugFlag) {
72            dprint(".close: " + acceptor);
73        }
74
75        keepRunning = false;
76    }
77
78    ////////////////////////////////////////////////////
79    //
80    // Work methods.
81    //
82
83    // REVISIT - this needs alot more from previous ListenerThread
84
85    public void doWork()
86    {
87        try {
88            if (orb.transportDebugFlag) {
89                dprint(".doWork: Start ListenerThread: " + acceptor);
90            }
91            while (keepRunning) {
92                try {
93                    if (orb.transportDebugFlag) {
94                        dprint(".doWork: BEFORE ACCEPT CYCLE: " + acceptor);
95                    }
96
97                    acceptor.accept();
98
99                    if (orb.transportDebugFlag) {
100                        dprint(".doWork: AFTER ACCEPT CYCLE: " + acceptor);
101                    }
102                } catch (Throwable t) {
103                    if (orb.transportDebugFlag) {
104                        dprint(".doWork: Exception in accept: " + acceptor,t);
105                    }
106                    orb.getTransportManager().getSelector(0)
107                        .unregisterForEvent(getAcceptor().getEventHandler());
108                    getAcceptor().close();
109                }
110            }
111        } finally {
112            if (orb.transportDebugFlag) {
113                dprint(".doWork: Terminated ListenerThread: " + acceptor);
114            }
115        }
116    }
117
118    public void setEnqueueTime(long timeInMillis)
119    {
120        enqueueTime = timeInMillis;
121    }
122
123    public long getEnqueueTime()
124    {
125        return enqueueTime;
126    }
127
128    public String getName() { return "ListenerThread"; }
129
130    ////////////////////////////////////////////////////
131    //
132    // Implementation.
133    //
134
135    private void dprint(String msg)
136    {
137        ORBUtility.dprint("ListenerThreadImpl", msg);
138    }
139
140    private void dprint(String msg, Throwable t)
141    {
142        dprint(msg);
143        t.printStackTrace(System.out);
144    }
145}
146
147// End of file.
148