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1
17
18 package org.objectweb.jac.aspects.gui.web;
19
20 import java.io.File  ;
21 import java.io.FileInputStream ;
22 import java.io.IOException ;
23 import java.io.InputStream ;
24 import java.io.OutputStream ;
25 import java.net.JarURLConnection ;
26 import java.net.URL ;
27 import java.net.URLConnection ;
28 import java.util.Date ;
29 import org.apache.log4j.Logger;
30 import org.mortbay.util.Resource;
31 import org.objectweb.jac.util.ExtArrays;
32
33 public class ClasspathResource extends Resource {
34 static Logger logger = Logger.getLogger("web");
35
36 long lastModified = new Date ().getTime();
37 String path;
38 URLConnection connection;
39 File file;
40 boolean isFile;
41 public ClasspathResource(String path) throws IOException {
42 if (path.startsWith("/")) {
43 path = path.substring(1);
44 }
45 this.path = path;
46 URL url = getClass().getClassLoader().getResource(path);
47 if (url!=null) {
48 file = new File (url.getFile());
49 connection = url.openConnection();
50 if (connection instanceof JarURLConnection ) {
51 file = new File (((JarURLConnection )connection).getJarFileURL().getFile());
52 }
53 logger.debug("New classpath resource: "+url+" isFile="+file.isFile());
54 } else {
55 logger.debug("Resource not found: "+path);
57 }
58 }
59 public ClasspathResource() {
60 path = null;
61 }
62 public void release() {
63 }
64 public boolean exists() {
65 boolean exists = isFile ? file.exists() : getInputStream()!=null;
66 logger.debug("exists "+path+"? -> "+exists);
67 return exists;
68 }
69 public boolean isDirectory() {
70 return false;
71 }
72 public long lastModified() {
73 if (file.exists())
74 return file.lastModified();
75 else
76 return lastModified;
77 }
78 public long length() {
79 try {
80 if (isFile) {
81 return file.length();
82 } else {
83 InputStream is = getInputStream();
84 if (is!=null)
85 return getInputStream().available();
86 else
87 return 0;
88 }
89 } catch(Exception e) {
90 logger.error("Failed to get length of resource: "+path,e);
91 return 0;
92 }
93 }
94 public URL getURL() {
95 return null;
96 }
97 public File getFile() {
98 return file;
99 }
100 public String getName() {
101 return path;
102 }
103 public InputStream getInputStream() {
104 logger.debug("getInputStream "+file);
105 if (isFile) {
106 try {
107 return new FileInputStream (file);
108 } catch (IOException e) {
109 logger.error("getInputStream "+path,e);
110 return null;
111 }
112 } else {
113 return getClass().getClassLoader().getResourceAsStream(path);
114 }
115 }
116 public OutputStream getOutputStream() {
117 return null;
118 }
119 public boolean delete() {
120 return false;
121 }
122 public boolean renameTo(Resource newName) {
123 return false;
124 }
125 public String [] list() {
126 return ExtArrays.emptyStringArray;
127 }
128 public Resource addPath(String addedPath) throws IOException {
129 if (path==null)
130 return new ClasspathResource(addedPath);
131 else
132 return this;
133 }
134 public String toString() {
135 return path;
136 }
137
138 }
139 |
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