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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2008, 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 | |||
| 26 | |||
| 27 | /* | ||
| 28 | * The Original Code is HAT. The Initial Developer of the | ||
| 29 | * Original Code is Bill Foote, with contributions from others | ||
| 30 | * at JavaSoft/Sun. | ||
| 31 | */ | ||
| 32 | |||
| 33 | package com.sun.tools.hat.internal.server; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * Reads a single HTTP query from a socket, and starts up a QueryHandler | ||
| 37 | * to server it. | ||
| 38 | * | ||
| 39 | * @author Bill Foote | ||
| 40 | */ | ||
| 41 | |||
| 42 | |||
| 43 | import java.net.Socket; | ||
| 44 | import java.net.ServerSocket; | ||
| 45 | import java.net.InetAddress; | ||
| 46 | |||
| 47 | import java.io.InputStream; | ||
| 48 | import java.io.BufferedInputStream; | ||
| 49 | import java.io.IOException; | ||
| 50 | import java.io.Writer; | ||
| 51 | import java.io.BufferedWriter; | ||
| 52 | import java.io.PrintWriter; | ||
| 53 | import java.io.OutputStream; | ||
| 54 | import java.io.OutputStreamWriter; | ||
| 55 | import java.io.BufferedOutputStream; | ||
| 56 | |||
| 57 | import com.sun.tools.hat.internal.model.Snapshot; | ||
| 58 | import com.sun.tools.hat.internal.oql.OQLEngine; | ||
| 59 | |||
| 60 | public class HttpReader implements Runnable { | ||
| 61 | |||
| 62 | |||
| 63 | private Socket socket; | ||
| 64 | private PrintWriter out; | ||
| 65 | private Snapshot snapshot; | ||
| 66 | private OQLEngine engine; | ||
| 67 | |||
| 68 | public HttpReader (Socket s, Snapshot snapshot, OQLEngine engine) { | ||
| 69 | this.socket = s; | ||
| 70 | this.snapshot = snapshot; | ||
| 71 | this.engine = engine; | ||
| 72 | } | ||
| 73 | |||
| 74 | public void run() { | ||
| 75 | InputStream in = null; | ||
| 76 | try { | ||
| 77 | in = new BufferedInputStream(socket.getInputStream()); | ||
| 78 | out = new PrintWriter(new BufferedWriter( | ||
| 79 | new OutputStreamWriter( | ||
| 80 | socket.getOutputStream()))); | ||
| 81 | out.println("HTTP/1.0 200 OK"); | ||
| 82 | out.println("Cache-Control: no-cache"); | ||
| 83 | out.println("Pragma: no-cache"); | ||
| 84 | out.println(); | ||
| 85 | if (in.read() != 'G' || in.read() != 'E' | ||
| 86 | || in.read() != 'T' || in.read() != ' ') { | ||
| 87 | outputError("Protocol error"); | ||
| 88 | } | ||
| 89 | int data; | ||
| 90 | StringBuffer queryBuf = new StringBuffer(); | ||
| 91 | while ((data = in.read()) != -1 && data != ' ') { | ||
| 92 | char ch = (char) data; | ||
| 93 | queryBuf.append(ch); | ||
| 94 | } | ||
| 95 | String query = queryBuf.toString(); | ||
| 96 | query = java.net.URLDecoder.decode(query, "UTF-8"); | ||
| 97 | QueryHandler handler = null; | ||
| 98 | if (snapshot == null) { | ||
| 99 | outputError("The heap snapshot is still being read."); | ||
| 100 | return; | ||
| 101 | } else if (query.equals("/")) { | ||
| 102 | handler = new AllClassesQuery(true, engine != null); | ||
| 103 | handler.setUrlStart(""); | ||
| 104 | handler.setQuery(""); | ||
| 105 | } else if (query.startsWith("/oql/")) { | ||
| 106 | if (engine != null) { | ||
| 107 | handler = new OQLQuery(engine); | ||
| 108 | handler.setUrlStart(""); | ||
| 109 | handler.setQuery(query.substring(5)); | ||
| 110 | } | ||
| 111 | } else if (query.startsWith("/oqlhelp/")) { | ||
| 112 | if (engine != null) { | ||
| 113 | handler = new OQLHelp(); | ||
| 114 | handler.setUrlStart(""); | ||
| 115 | handler.setQuery(""); | ||
| 116 | } | ||
| 117 | } else if (query.equals("/allClassesWithPlatform/")) { | ||
| 118 | handler = new AllClassesQuery(false, engine != null); | ||
| 119 | handler.setUrlStart("../"); | ||
| 120 | handler.setQuery(""); | ||
| 121 | } else if (query.equals("/showRoots/")) { | ||
| 122 | handler = new AllRootsQuery(); | ||
| 123 | handler.setUrlStart("../"); | ||
| 124 | handler.setQuery(""); | ||
| 125 | } else if (query.equals("/showInstanceCounts/includePlatform/")) { | ||
| 126 | handler = new InstancesCountQuery(false); | ||
| 127 | handler.setUrlStart("../../"); | ||
| 128 | handler.setQuery(""); | ||
| 129 | } else if (query.equals("/showInstanceCounts/")) { | ||
| 130 | handler = new InstancesCountQuery(true); | ||
| 131 | handler.setUrlStart("../"); | ||
| 132 | handler.setQuery(""); | ||
| 133 | } else if (query.startsWith("/instances/")) { | ||
| 134 | handler = new InstancesQuery(false); | ||
| 135 | handler.setUrlStart("../"); | ||
| 136 | handler.setQuery(query.substring(11)); | ||
| 137 | } else if (query.startsWith("/newInstances/")) { | ||
| 138 | handler = new InstancesQuery(false, true); | ||
| 139 | handler.setUrlStart("../"); | ||
| 140 | handler.setQuery(query.substring(14)); | ||
| 141 | } else if (query.startsWith("/allInstances/")) { | ||
| 142 | handler = new InstancesQuery(true); | ||
| 143 | handler.setUrlStart("../"); | ||
| 144 | handler.setQuery(query.substring(14)); | ||
| 145 | } else if (query.startsWith("/allNewInstances/")) { | ||
| 146 | handler = new InstancesQuery(true, true); | ||
| 147 | handler.setUrlStart("../"); | ||
| 148 | handler.setQuery(query.substring(17)); | ||
| 149 | } else if (query.startsWith("/object/")) { | ||
| 150 | handler = new ObjectQuery(); | ||
| 151 | handler.setUrlStart("../"); | ||
| 152 | handler.setQuery(query.substring(8)); | ||
| 153 | } else if (query.startsWith("/class/")) { | ||
| 154 | handler = new ClassQuery(); | ||
| 155 | handler.setUrlStart("../"); | ||
| 156 | handler.setQuery(query.substring(7)); | ||
| 157 | } else if (query.startsWith("/roots/")) { | ||
| 158 | handler = new RootsQuery(false); | ||
| 159 | handler.setUrlStart("../"); | ||
| 160 | handler.setQuery(query.substring(7)); | ||
| 161 | } else if (query.startsWith("/allRoots/")) { | ||
| 162 | handler = new RootsQuery(true); | ||
| 163 | handler.setUrlStart("../"); | ||
| 164 | handler.setQuery(query.substring(10)); | ||
| 165 | } else if (query.startsWith("/reachableFrom/")) { | ||
| 166 | handler = new ReachableQuery(); | ||
| 167 | handler.setUrlStart("../"); | ||
| 168 | handler.setQuery(query.substring(15)); | ||
| 169 | } else if (query.startsWith("/rootStack/")) { | ||
| 170 | handler = new RootStackQuery(); | ||
| 171 | handler.setUrlStart("../"); | ||
| 172 | handler.setQuery(query.substring(11)); | ||
| 173 | } else if (query.startsWith("/histo/")) { | ||
| 174 | handler = new HistogramQuery(); | ||
| 175 | handler.setUrlStart("../"); | ||
| 176 | handler.setQuery(query.substring(7)); | ||
| 177 | } else if (query.startsWith("/refsByType/")) { | ||
| 178 | handler = new RefsByTypeQuery(); | ||
| 179 | handler.setUrlStart("../"); | ||
| 180 | handler.setQuery(query.substring(12)); | ||
| 181 | } else if (query.startsWith("/finalizerSummary/")) { | ||
| 182 | handler = new FinalizerSummaryQuery(); | ||
| 183 | handler.setUrlStart("../"); | ||
| 184 | handler.setQuery(""); | ||
| 185 | } else if (query.startsWith("/finalizerObjects/")) { | ||
| 186 | handler = new FinalizerObjectsQuery(); | ||
| 187 | handler.setUrlStart("../"); | ||
| 188 | handler.setQuery(""); | ||
| 189 | } | ||
| 190 | |||
| 191 | if (handler != null) { | ||
| 192 | handler.setOutput(out); | ||
| 193 | handler.setSnapshot(snapshot); | ||
| 194 | handler.run(); | ||
| 195 | } else { | ||
| 196 | outputError("Query '" + query + "' not implemented"); | ||
| 197 | } | ||
| 198 | } catch (IOException ex) { | ||
| 199 | ex.printStackTrace(); | ||
| 200 | } finally { | ||
| 201 | if (out != null) { | ||
| 202 | out.close(); | ||
| 203 | } | ||
| 204 | try { | ||
| 205 | if (in != null) { | ||
| 206 | in.close(); | ||
| 207 | } | ||
| 208 | } catch (IOException ignored) { | ||
| 209 | } | ||
| 210 | try { | ||
| 211 | socket.close(); | ||
| 212 | } catch (IOException ignored) { | ||
| 213 | } | ||
| 214 | } | ||
| 215 | } | ||
| 216 | |||
| 217 | private void outputError(String msg) { | ||
| 218 | out.println(); | ||
| 219 | out.println("<html><body bgcolor=\"#ffffff\">"); | ||
| 220 | out.println(msg); | ||
| 221 | out.println("</body></html>"); | ||
| 222 | } | ||
| 223 | |||
| 224 | } | ||