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org.apache.commons.jelly.tags.jetty.JettyHttpServerTag |
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1 | /* |
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2 | * Copyright 2002,2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | ||
17 | package org.apache.commons.jelly.tags.jetty; |
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18 | ||
19 | import java.io.IOException; |
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20 | import java.net.UnknownHostException; |
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21 | import java.net.URL; |
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22 | ||
23 | import org.apache.commons.jelly.JellyTagException; |
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24 | import org.apache.commons.jelly.TagSupport; |
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25 | import org.apache.commons.jelly.XMLOutput; |
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26 | import org.apache.commons.logging.LogFactory; |
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27 | import org.mortbay.http.HttpContext; |
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28 | import org.mortbay.http.HttpListener; |
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29 | import org.mortbay.http.HttpServer; |
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30 | import org.mortbay.http.SocketListener; |
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31 | import org.mortbay.http.UserRealm; |
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32 | import org.mortbay.http.handler.NotFoundHandler; |
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33 | import org.mortbay.http.handler.ResourceHandler; |
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34 | import org.mortbay.util.Log; |
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35 | import org.mortbay.util.MultiException; |
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36 | import org.mortbay.util.OutputStreamLogSink; |
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37 | import org.mortbay.util.Resource; |
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38 | ||
39 | /** |
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40 | * Declare an instance of a Jetty http server |
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41 | * |
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42 | * @author rtl |
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43 | * @version $Id: JettyHttpServerTag.java,v 1.3 2002/07/14 12:38:22 dion Exp $ |
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44 | */ |
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45 | 1 | public class JettyHttpServerTag extends TagSupport { |
46 | ||
47 | /** default port to create listeners for */ |
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48 | public static final int DEFAULT_PORT = 8100; |
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49 | ||
50 | /** default host to create listeners/context for */ |
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51 | public static final String DEFAULT_HOST = "localhost"; |
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52 | ||
53 | /** default context to create context for */ |
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54 | public static final String DEFAULT_CONTEXT_PATH = "/"; |
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55 | ||
56 | /** default resource base to use for context */ |
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57 | public static final String DEFAULT_RESOURCE_BASE = "./docRoot"; |
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58 | ||
59 | /** default log file for Jetty */ |
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60 | public static final String DEFAULT_LOG_FILE = "jetty.log"; |
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61 | ||
62 | /** The Log to which logging calls will be made. */ |
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63 | 1 | private static final org.apache.commons.logging.Log log = |
64 | LogFactory.getLog(JettyHttpServerTag.class); |
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65 | ||
66 | /** the log sink for the Jety server */ |
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67 | private static OutputStreamLogSink _logSink; |
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68 | ||
69 | // static initialisation |
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70 | { |
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71 | // setup a log for Jetty with a default filename |
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72 | try { |
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73 | 14 | _logSink = new OutputStreamLogSink(DEFAULT_LOG_FILE); |
74 | //_logSink.start(); |
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75 | 14 | Log.instance().add(_logSink); |
76 | 14 | } catch (Exception ex ) { |
77 | 0 | log.error(ex.getLocalizedMessage()); |
78 | } |
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79 | ||
80 | } |
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81 | ||
82 | /** unique identifier of the tag/ variable to store result in */ |
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83 | private String _var; |
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84 | ||
85 | /** the http server for this tag */ |
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86 | private HttpServer _server; |
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87 | ||
88 | /** filename of Jetty log file - with default */ |
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89 | 14 | private String _logFileName = DEFAULT_LOG_FILE; |
90 | ||
91 | /** Creates a new instance of JettyHttpServerTag */ |
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92 | 14 | public JettyHttpServerTag() { |
93 | ||
94 | // Create the server |
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95 | 14 | _server=new HttpServer(); |
96 | ||
97 | // turn off alias checking in Jetty's FileResource, |
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98 | // so that we don't need exact case in resource names |
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99 | 14 | System.setProperty("org.mortbay.util.FileResource.checkAliases", "false"); |
100 | 14 | } |
101 | ||
102 | /** |
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103 | * Perform the tag functionality. In this case, create an http server after |
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104 | * making sure that it has at least one context and associated http handler, |
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105 | * creating defaults if it doesn't |
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106 | * |
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107 | * @param xmlOutput where to send output |
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108 | * @throws Exception when an error occurs |
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109 | */ |
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110 | public void doTag(XMLOutput xmlOutput) throws JellyTagException { |
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111 | ||
112 | try { |
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113 | 12 | URL logFileURL = getContext().getResource(getLogFileName()); |
114 | 12 | _logSink.setFilename(logFileURL.getPath()); |
115 | 12 | _logSink.start(); |
116 | 12 | } catch (Exception ex ) { |
117 | 0 | log.error(ex.getLocalizedMessage()); |
118 | } |
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119 | ||
120 | // allow nested tags first, e.g body |
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121 | 12 | invokeBody(xmlOutput); |
122 | ||
123 | try { |
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124 | // if no listeners create a default port listener |
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125 | 12 | if (_server.getListeners().length == 0) { |
126 | 2 | SocketListener listener=new SocketListener(); |
127 | 2 | listener.setPort(DEFAULT_PORT); |
128 | 2 | listener.setHost(DEFAULT_HOST); |
129 | 2 | _server.addListener(listener); |
130 | } |
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131 | ||
132 | // if no context/s create a default context |
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133 | 12 | if (_server.getContexts().length == 0) { |
134 | 4 | log.info("Creating a default context"); |
135 | // Create a context |
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136 | 4 | HttpContext context = _server.getContext(DEFAULT_HOST, |
137 | DEFAULT_CONTEXT_PATH); |
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138 | ||
139 | // Serve static content from the context |
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140 | 4 | URL baseResourceURL = getContext().getResource(DEFAULT_RESOURCE_BASE); |
141 | 4 | Resource resource = Resource.newResource(baseResourceURL); |
142 | 4 | context.setBaseResource(resource); |
143 | 4 | _server.addContext(context); |
144 | } |
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145 | 12 | } |
146 | catch (UnknownHostException e) { |
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147 | 0 | throw new JellyTagException(e); |
148 | } |
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149 | catch (IOException e) { |
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150 | 0 | throw new JellyTagException(e); |
151 | } |
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152 | ||
153 | // check that all the contexts have at least one handler |
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154 | // if not then add a default resource handler and a not found handler |
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155 | 12 | HttpContext[] allContexts = _server.getContexts(); |
156 | 24 | for (int i = 0; i < allContexts.length; i++) { |
157 | 12 | HttpContext currContext = allContexts[i]; |
158 | 12 | if (currContext.getHandlers().length == 0) { |
159 | 5 | log.info("Adding resource and not found handlers to context:" + |
160 | currContext.getContextPath()); |
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161 | 5 | currContext.addHandler(new ResourceHandler()); |
162 | 5 | currContext.addHandler(new NotFoundHandler()); |
163 | } |
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164 | } |
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165 | ||
166 | // Start the http server |
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167 | try { |
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168 | 12 | _server.start(); |
169 | 12 | } |
170 | catch (MultiException e) { |
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171 | 0 | throw new JellyTagException(e); |
172 | } |
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173 | ||
174 | // set variable to value if required |
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175 | 12 | if (getVar() != null) { |
176 | 12 | getContext().setVariable(getVar(), _server); |
177 | } |
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178 | 12 | } |
179 | ||
180 | /** |
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181 | * Add an http listener to the server instance |
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182 | * |
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183 | * @param listener the listener to add |
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184 | */ |
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185 | public void addListener(HttpListener listener) { |
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186 | 10 | _server.addListener(listener); |
187 | 10 | } |
188 | ||
189 | /** |
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190 | * Add an http context to the server instance |
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191 | * |
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192 | * @param context the context to add |
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193 | */ |
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194 | public void addContext(HttpContext context) { |
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195 | 8 | _server.addContext(context); |
196 | 8 | } |
197 | ||
198 | /* ------------------------------------------------------------ */ |
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199 | /** |
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200 | * Add a user authentication realm to the server instance |
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201 | * |
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202 | * @param realm the realm to add |
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203 | * @return the realm added |
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204 | */ |
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205 | public UserRealm addRealm(UserRealm realm) |
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206 | { |
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207 | 1 | return _server.addRealm(realm); |
208 | } |
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209 | ||
210 | //-------------------------------------------------------------------------- |
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211 | // Property accessors/mutators |
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212 | //-------------------------------------------------------------------------- |
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213 | ||
214 | /** |
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215 | * Getter for property var. |
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216 | * |
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217 | * @return Value of property var. |
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218 | */ |
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219 | public String getVar() { |
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220 | 24 | return _var; |
221 | } |
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222 | ||
223 | /** |
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224 | * Setter for property var. |
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225 | * |
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226 | * @param var New value of property var. |
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227 | */ |
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228 | public void setVar(String var) { |
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229 | 12 | _var = class="keyword">var; |
230 | 12 | } |
231 | ||
232 | /** |
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233 | * Getter for property logFileName. |
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234 | * |
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235 | * @return Value of property logFileName. |
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236 | */ |
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237 | public String getLogFileName() { |
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238 | 12 | return _logFileName; |
239 | } |
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240 | ||
241 | /** |
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242 | * Setter for property logFileName. |
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243 | * |
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244 | * @param logFileName New value of property logFileName. |
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245 | */ |
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246 | public void setLogFileName(String logFileName) { |
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247 | 1 | _logFileName = logFileName; |
248 | 1 | } |
249 | ||
250 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |