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1 package com.opensymphony.webwork;
2
3 import org.apache.commons.jci.CompilingClassLoader;
4 import org.apache.commons.jci.compilers.eclipse.EclipseJavaCompiler;
5 import org.mortbay.http.SocketListener;
6 import org.mortbay.jetty.Server;
7 import org.mortbay.jetty.servlet.WebApplicationContext;
8 import org.mortbay.util.FileResource;
9 import org.mortbay.util.JarResource;
10 import org.mortbay.util.Resource;
11
12 import java.io.File  ;
13 import java.io.IOException ;
14 import java.net.URL ;
15 import java.net.URLClassLoader ;
16 import java.util.ArrayList ;
17 import java.util.StringTokenizer ;
18
19
24 public class Prototype {
25 public static void main(String [] args) {
26 if (args.length != 3) {
27 System.err.println("prototype must be invoked with three argumenets:");
28 System.err.println("[contextPath] [webapp] [sources]");
29 System.err.println("");
30 System.err.println("Ex: java -jar webwork-launcher.jar \\");
31 System.err.println(" prototype /sandbox webapps/sandbox/src/webapp webapps/sandbox/src/java");
32 return;
33 }
34
35 String contextPath = args[0];
36 String webapp = args[1];
37
38 if (webapp == null) {
39 System.out.println("webapp must be specified as an exploded war");
40 return;
41 }
42
43 String sources = args[2];
44 if (sources == null) {
45 System.out.println("-Dsources must be specified as a comma-separated list of Java source paths.");
46 return;
47 }
48
49 try {
50 StringTokenizer st = new StringTokenizer (sources, ",");
52 ArrayList fileList = new ArrayList ();
53 while (st.hasMoreTokens()) {
54 String token = st.nextToken();
55 if (!token.endsWith("/")) {
56 token = token + "/";
57 }
58 fileList.add(new File (token));
59 }
60 fileList.add(new File (webapp + "/WEB-INF/classes/"));
61 File [] files = (File []) fileList.toArray(new File [fileList.size()]);
62
63 URL [] urls = new URL [files.length];
64 for (int i = 0; i < files.length; i++) {
65 File file = files[i];
66 if (!file.exists()) {
67 throw new RuntimeException ("Source dir does not exist: " + file.toString());
68 }
69 urls[i] = file.getCanonicalFile().toURL();
70 }
71
72 ClassLoader parent = Thread.currentThread().getContextClassLoader();
74 for (int i = 0; i < files.length; i++) {
75 File file = files[i];
76 parent = new CompilingClassLoader(parent, file, new EclipseJavaCompiler());
77 }
78 URLClassLoader url = new MyURLClassLoader(urls, parent);
79 Thread.currentThread().setContextClassLoader(url);
80
81 Server server = new Server();
83 SocketListener socketListener = new SocketListener();
84 socketListener.setPort(8080);
85 server.addListener(socketListener);
86
87 WebApplicationContext ctx = new PrototypeWebAppContext(webapp);
88 ctx.setContextPath(contextPath);
89 ctx.setClassLoader(url);
90 server.addContext("localhost", ctx);
91
92 server.start();
93 } catch (Exception e) {
94 e.printStackTrace();
95 }
96
97 }
98
99 static class PrototypeWebAppContext extends WebApplicationContext {
100 public PrototypeWebAppContext() {
101 }
102
103 public PrototypeWebAppContext(String string) {
104 super(string);
105 }
106
107 public Resource getResource(String string) throws IOException {
108 if (string.startsWith("/WEB-INF/lib/")) {
109 String jar = string.substring("/WEB-INF/lib/".length());
110 ClassLoader parent = Thread.currentThread().getContextClassLoader();
111 while (parent != null) {
112 if (parent instanceof URLClassLoader ) {
113 URL [] urls = ((URLClassLoader ) parent).getURLs();
114 for (int i = 0; i < urls.length; i++) {
115 URL url = urls[i];
116 if (url.toExternalForm().endsWith(jar)) {
117 return JarResource.newResource(url);
118 }
119 }
120 }
121
122 parent = parent.getParent();
123 }
124 }
125
126 if (string.equals("/webwork")) {
129 return FileResource.newResource("src/java/META-INF/taglib.tld");
130 }
131
132 return super.getResource(string);
133 }
134 }
135
136 static class MyURLClassLoader extends URLClassLoader {
137 private ClassLoader parent;
138
139 public MyURLClassLoader(URL [] urls, ClassLoader parent) {
140 super(urls, parent);
141 this.parent = parent;
142 }
143
144 public Class loadClass(String name) throws ClassNotFoundException {
145 Class aClass = null;
146
147 try {
148 aClass = parent.loadClass(name);
149 if (aClass != null) {
150 return aClass;
151 }
152 } catch (ClassNotFoundException e) {
153 }
154
155 return super.loadClass(name);
156 }
157
158 public URL getResource(String name) {
159 URL url = findResource(name);
160 if (url == null && parent != null) {
161 url = parent.getResource(name);
162 }
163
164 return url;
165 }
166 }
167 }
168 |
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