J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | /* The contents of this file are subject to the Sun Public License |
| 28 | * Version 1.0 (the "License"); you may not use this file except in |
| 29 | * compliance with the License. A copy of the License is available at |
| 30 | * http://www.sun.com/, and in the file LICENSE.html in the |
| 31 | * doc directory. |
| 32 | * |
| 33 | * The Original Code is HAT. The Initial Developer of the |
| 34 | * Original Code is Bill Foote, with contributions from others |
| 35 | * at JavaSoft/Sun. Portions created by Bill Foote and others |
| 36 | * at Javasoft/Sun are Copyright (C) 1997-2004. All Rights Reserved. |
| 37 | * |
| 38 | * In addition to the formal license, I ask that you don't |
| 39 | * change the history or donations files without permission. |
| 40 | */ |
| 41 | |
| 42 | package com.sun.tools.hat.internal.server; |
| 43 | |
| 44 | /** |
| 45 | * |
| 46 | * @author Bill Foote |
| 47 | */ |
| 48 | |
| 49 | |
| 50 | import java.net.Socket; |
| 51 | import java.net.ServerSocket; |
| 52 | import java.net.InetAddress; |
| 53 | |
| 54 | import java.io.InputStream; |
| 55 | import java.io.BufferedInputStream; |
| 56 | import java.io.IOException; |
| 57 | import java.io.Writer; |
| 58 | import java.io.BufferedWriter; |
| 59 | import java.io.PrintWriter; |
| 60 | import java.io.OutputStream; |
| 61 | import java.io.OutputStreamWriter; |
| 62 | import java.io.BufferedOutputStream; |
| 63 | |
| 64 | import com.sun.tools.hat.internal.model.Snapshot; |
| 65 | import com.sun.tools.hat.internal.oql.OQLEngine; |
| 66 | |
| 67 | public class QueryListener implements Runnable { |
| 68 | |
| 69 | |
| 70 | private Snapshot snapshot; |
| 71 | private OQLEngine engine; |
| 72 | private int port; |
| 73 | |
| 74 | public QueryListener(int port) { |
| 75 | this.port = port; |
| 76 | this.snapshot = null; // Client will setModel when it's ready |
| 77 | this.engine = null; // created when snapshot is set |
| 78 | } |
| 79 | |
| 80 | public void setModel(Snapshot ss) { |
| 81 | this.snapshot = ss; |
| 82 | if (OQLEngine.isOQLSupported()) { |
| 83 | this.engine = new OQLEngine(ss); |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | public void run() { |
| 88 | try { |
| 89 | waitForRequests(); |
| 90 | } catch (IOException ex) { |
| 91 | ex.printStackTrace(); |
| 92 | System.exit(1); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | private void waitForRequests() throws IOException { |
| 97 | ServerSocket ss = new ServerSocket(port); |
| 98 | Thread last = null; |
| 99 | for (;;) { |
| 100 | Socket s = ss.accept(); |
| 101 | Thread t = new Thread(new HttpReader(s, snapshot, engine)); |
| 102 | if (snapshot == null) { |
| 103 | t.setPriority(Thread.NORM_PRIORITY+1); |
| 104 | } else { |
| 105 | t.setPriority(Thread.NORM_PRIORITY-1); |
| 106 | if (last != null) { |
| 107 | try { |
| 108 | last.setPriority(Thread.NORM_PRIORITY-2); |
| 109 | } catch (Throwable ignored) { |
| 110 | } |
| 111 | // If the thread is no longer alive, we'll get a |
| 112 | // NullPointerException |
| 113 | } |
| 114 | } |
| 115 | t.start(); |
| 116 | last = t; |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | } |