|
1
23
24 package com.sun.appserv.server.util;
25
26 import java.io.File  ;
27 import java.net.MalformedURLException ;
28 import java.net.URL ;
29 import java.util.List ;
30 import java.util.logging.*;
31 import com.sun.enterprise.config.ConfigContext;
32 import com.sun.enterprise.config.ConfigException;
33 import com.sun.enterprise.config.serverbeans.Applications;
34 import com.sun.enterprise.config.serverbeans.Domain;
35 import com.sun.enterprise.config.serverbeans.EjbModule;
36 import com.sun.enterprise.config.serverbeans.J2eeApplication;
37 import com.sun.enterprise.config.serverbeans.WebModule;
38 import com.sun.enterprise.server.ApplicationServer;
39 import com.sun.enterprise.server.PELaunch;
40 import com.sun.enterprise.server.ServerContext;
41 import com.sun.enterprise.util.SystemPropertyConstants;
42
43 public class ASClassLoaderUtil {
44 private static Logger _logger = Logger.getAnonymousLogger();
45
46
47 private static ClassLoader sharedCL;
48
49
57 public static String getWebModuleClassPath(String moduleId) {
58 if (_logger.isLoggable(Level.FINE)) {
59 _logger.log(Level.FINE, "module Id : " + moduleId);
60 }
61
62 StringBuilder classpath = new StringBuilder ();
63 if (Boolean.getBoolean(PELaunch.USE_NEW_CLASSLOADER_PROPERTY)) {
64 List <String > cp = PELaunch.getSharedClasspath();
67 for(String s:cp){
68 classpath.append(s);
69 classpath.append(File.pathSeparatorChar);
70 }
71 } else {
72 classpath.append(System.getProperty("java.class.path"));
73 }
74
75 if (moduleId != null) {
76 String specifiedLibraries = getLibrariesForWebModule(moduleId);
77 URL [] libs = getLibraries(specifiedLibraries);
78 if (libs == null) {
79 if (_logger.isLoggable(Level.FINE)) {
80 _logger.log(Level.FINE, "classpath: " + classpath.toString());
81 }
82 return classpath.toString();
83 }
84
85 for (URL u : libs) {
86 classpath.append(u + File.pathSeparator);
87 }
88 }
89
90 if (_logger.isLoggable(Level.FINE)) {
91 _logger.log(Level.FINE, "Final classpath: " + classpath.toString());
92 }
93 return classpath.toString();
94 }
95
96
102 public static String getLibrariesForJ2EEApplication(String moduleId) {
103 J2eeApplication app = null;
104 try {
105 app = getApplications().getJ2eeApplicationByName(moduleId);
106 if(app == null) return null;
107 } catch(ConfigException malEx) {
108 _logger.log(Level.WARNING, "loader.cannot_convert_classpath_into_url",
109 moduleId);
110 _logger.log(Level.WARNING,"loader.exception", malEx);
111 }
112 return app.getLibraries();
113 }
114
115
121 public static String getLibrariesForWebModule(String moduleId) {
122 WebModule app = null;
123 try {
124 app = getApplications().getWebModuleByName(moduleId);
125 if(app == null) return null;
126 } catch(ConfigException malEx) {
127 _logger.log(Level.WARNING, "loader.cannot_convert_classpath_into_url",
128 moduleId);
129 _logger.log(Level.WARNING,"loader.exception", malEx);
130 }
131
132 String librariesStr = app.getLibraries();
133 if (_logger.isLoggable(Level.FINE)) {
134 _logger.log(Level.FINE, "app = " + app + " library = " + librariesStr);
135 }
136 return librariesStr;
137 }
138
139
145 public static String getLibrariesForEJBJars(String moduleId) {
146 EjbModule app = null;
147 try {
148 app = getApplications().getEjbModuleByName(moduleId);
149 if(app == null) return null;
150 } catch(ConfigException malEx) {
151 _logger.log(Level.WARNING, "loader.cannot_convert_classpath_into_url",
152 moduleId);
153 _logger.log(Level.WARNING,"loader.exception", malEx);
154 }
155 return app.getLibraries();
156 }
157
158 private static Applications getApplications() throws ConfigException {
160 ConfigContext serverConfigCtx = ApplicationServer.getServerContext().getConfigContext();
161 Domain domain = ((Domain)serverConfigCtx.getRootConfigBean());
162 return domain.getApplications();
163 }
164
165
174 public static URL [] getLibraries(String librariesStr) {
175 if(librariesStr == null)
176 return null;
177
178 String [] librariesStrArray = librariesStr.split(",");
179 if(librariesStrArray == null)
180 return null;
181
182 URL [] urls = new URL [librariesStrArray.length];
183 String appLibsDir = System.getProperty(
186 SystemPropertyConstants.INSTANCE_ROOT_PROPERTY)
187 + File.separator + "lib"
188 + File.separator + "applibs";
189
190 int i=0;
191 for(String libraryStr:librariesStrArray){
192 try {
193 File f = new File (libraryStr);
194 if(!f.isAbsolute())
195 f = new File (appLibsDir, libraryStr);
196 URL url = f.toURL();
197 urls[i++] = url;
198 } catch (MalformedURLException malEx) {
199 _logger.log(Level.WARNING,
200 "loader.cannot_convert_classpath_into_url",
201 libraryStr);
202 _logger.log(Level.WARNING,"loader.exception", malEx);
203 }
204 }
205 return urls;
206 }
207
208
212 public static ClassLoader getSharedClassLoader() {
213 if(sharedCL == null) {
214 ServerContext sc = ApplicationServer.getServerContext();
215 sharedCL = sc.getSharedClassLoader();
216 }
217 return sharedCL;
218 }
219 }
220 |
Popular Tags |
Java API By Example, From Geeks To Geeks.