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1 package net.sf.invicta.ant.taskdef;
2
3 import org.apache.tools.ant.BuildException;
4 import org.apache.tools.ant.Task;
5
6 import java.io.File  ;
7 import java.io.FileInputStream ;
8 import java.io.FileNotFoundException ;
9 import java.io.FileOutputStream ;
10 import java.io.IOException ;
11 import java.io.InputStream ;
12 import java.io.InputStreamReader ;
13 import java.io.PrintWriter ;
14 import java.util.ArrayList ;
15 import java.util.Iterator ;
16 import java.util.List ;
17 import java.util.jar.JarFile ;
18 import java.util.zip.ZipEntry ;
19
20
25 public class ApplicationFileGenerator extends Task {
26
27
28 private final static String EAR_APPLICATION_XML_PATH =
29 "META-INF/application.xml";
30
31 private final static String APPLICATION_CLOSING_TAG = "</application>";
32 private final String header = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
33 "<!DOCTYPE application PUBLIC \"-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN\"" +
34
35 " \"http://java.sun.com/dtd/application_1_3.dtd\">";
36
37 private final String TYPE_EJB = "ejb";
38 private final String TYPE_JAVA = "java";
39 private final String TYPE_WEB = "web";
40
41 private String appxml;
42 private String projectName;
43 private List modules;
44 private String earFile;
45
46
49 public ApplicationFileGenerator()
50 {
51 super();
52 this.appxml = null;
53 this.modules = new ArrayList ();
54 this.earFile = null;
55 }
56
57 public void execute() throws BuildException {
58 if (this.appxml == null)
60 throw new BuildException("Appxml file was not specified.");
61 if (this.projectName == null)
62 throw new BuildException("Project name was not specified.");
63
64 StringBuffer existingApp = null;
65 if (this.earFile != null) {
66 log("Using application.xml from existing ear file '" + this.earFile + "'");
67 existingApp = fetchExistingContent(this.earFile);
68 }
69
70 byte[] buffer = new byte[1024];
72 InputStream inputStream;
73 StringBuffer previousFileContent = new StringBuffer ();
74 try {
75 inputStream = new FileInputStream (this.appxml);
76 int res = 0;
77 while ((res = inputStream.read(buffer)) != -1)
78 previousFileContent.append(new String (buffer, 0, res));
79 inputStream.close();
80 } catch (FileNotFoundException e) {
81 } catch (IOException e) {
82 }
83
84
85
86 StringBuffer output = new StringBuffer ();
88
89 for (Iterator iter = this.modules.iterator(); iter.hasNext();) {
91 Module module = (Module) iter.next();
92
93
94 if (module.getType() == null)
96 throw new BuildException("Module type was not specified.");
97 if (module.getFile() == null)
98 throw new BuildException("Module file was not specified.");
99
100 if ((this.earFile != null) &&
102 (existingApp.toString().indexOf(">" + module.getFile() + "<") != -1)) {
103 log("Warning: Module '" + module.getFile() + "' is already defined in application.xml");
104 continue;
105 }
106
107 output.append("\t<module>\n");
108
109 File file = new File (module.getFile());
110
111 if(module.getType().equalsIgnoreCase(TYPE_JAVA)) {
113 output.append("\t\t<java>" + file.getName() + "</java>\n");
114
115 } else if(module.getType().equalsIgnoreCase(TYPE_EJB)) {
117 output.append("\t\t<ejb>" + file.getName() + "</ejb>\n");
118
119 } else if(module.getType().equalsIgnoreCase(TYPE_WEB)) {
121 if (module.getName() == null)
122 throw new BuildException("Module name was not specified.");
123
124 output.append("\t\t<web>\n");
125 output.append("\t\t\t<web-uri>" + file.getName() + "</web-uri>\n");
126 output.append("\t\t\t<context-root>" + module.getName() + "</context-root>\n");
127 output.append("\t\t</web>\n");
128
129 } else {
130 throw new BuildException("Unknown type: " + module.getType());
131 }
132
133 output.append("\t</module>\n");
134
135 }
136
137 if (this.earFile == null) {
138
139 output.insert(0,
140 header + "\n\n<application>\n" +
141 " <display-name>" + this.projectName + "</display-name>\n" +
142 " <description>'" + this.projectName + "' applications descriptor file</description>\n");
143
144
145
146 output.append("</application>\n");
148 } else {
149 int tagPos = existingApp.toString().indexOf(APPLICATION_CLOSING_TAG);
150 if (tagPos == 1)
151 throw new BuildException("Invalid EAR application.xml (missing closing tag)");
152
153 existingApp.insert(tagPos, output.toString());
154
155 output = existingApp;
156 }
157
158 if (!previousFileContent.toString().equals(output.toString())) {
161
162 PrintWriter out = null;
164 try {
165 out = new PrintWriter (new FileOutputStream (this.appxml));
166 } catch (FileNotFoundException e) {
167 throw new BuildException(e.toString());
168 }
169 out.print(output.toString());
170
171 out.close();
172 log("Application file was created successfully (" + this.appxml + ")");
173 } else {
174 log("Application file should not be modified (" + this.appxml + ")");
175 }
176
177
178 }
179
184 private StringBuffer fetchExistingContent(String earFile) {
185
186 char[] buffer = new char[1024];
187 try {
188
189 JarFile jarFile = new JarFile (earFile);
190 ZipEntry appEntry = jarFile.getEntry(EAR_APPLICATION_XML_PATH);
191 if (appEntry == null)
192 throw new BuildException("No application.xml found in '" + earFile + "'");
193
194 InputStreamReader appStream = new InputStreamReader (jarFile.getInputStream(appEntry));
195
196 StringBuffer appContent = new StringBuffer ();
197 int res = 0;
198 while ((res = appStream.read(buffer)) != -1)
199 appContent.append(new String (buffer, 0, res));
200
201 return appContent;
202 } catch (IOException e) {
203 throw new BuildException("Error in reading EAR file '" + earFile + "': " + e.getMessage());
204 }
205 }
206
207 public void setAppxml(String appxml)
208 {
209 this.appxml = appxml;
210 }
211
212 public void addConfiguredModule(Module module)
213 {
214 this.modules.add(module);
215 }
216
217
218
222 public void setProjectName(String projectName) {
223 this.projectName = projectName;
224 }
225
226
230 public String getEarFile() {
231 return earFile;
232 }
233
234
238 public void setEarFile(String earFile) {
239 this.earFile = earFile;
240 }
241
242 }
243
244
245 |
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