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1
29
30 package com.caucho.java;
31
32 import com.caucho.loader.EnvironmentClassLoader;
33 import com.caucho.log.Log;
34 import com.caucho.util.CharBuffer;
35 import com.caucho.vfs.Encoding;
36 import com.caucho.vfs.IOExceptionWrapper;
37 import com.caucho.vfs.MemoryStream;
38 import com.caucho.vfs.Path;
39 import com.caucho.vfs.ReadStream;
40 import com.caucho.vfs.WriteStream;
41
42 import java.io.IOException  ;
43 import java.io.InputStream ;
44 import java.io.PrintWriter ;
45 import java.lang.reflect.InvocationTargetException ;
46 import java.lang.reflect.Method ;
47 import java.util.ArrayList ;
48 import java.util.logging.Level ;
49 import java.util.logging.Logger ;
50
51
54 public class InternalCompiler extends AbstractJavaCompiler {
55 private static final Logger log = Log.open(InternalCompiler.class);
56
57 private static boolean _hasCompiler;
59 Process _process;
60 String _userPrefix;
61
62 boolean _isDead;
63
64 public InternalCompiler(JavaCompiler compiler)
65 {
66 super(compiler);
67 }
68
69 protected void compileInt(String []path, LineMap lineMap)
70 throws IOException , JavaCompileException
71 {
72 if (! _hasCompiler) {
73 try {
74 Class.forName("com.sun.tools.javac.Main",
75 false, Thread.currentThread().getContextClassLoader());
76
77 _hasCompiler = true;
78 } catch (Exception e) {
79 e.printStackTrace();
80 throw new JavaCompileException(L.l("Resin can't load com.sun.tools.javac.Main. Usually this means that the JDK tools.jar is missing from the classpath, possibly because of using a JRE instead of the JDK. You can either add tools.jar to the classpath or change the compiler to an external one with <java compiler='javac'/> or jikes.\n\n{0}", String.valueOf(e)));
81 }
82 }
83
84 executeInt(path, lineMap);
85 }
86
87
90 private void executeInt(String []path, LineMap lineMap)
91 throws JavaCompileException, IOException
92 {
93 MemoryStream tempStream = new MemoryStream();
94 WriteStream error = new WriteStream(tempStream);
95
96 try {
97
99 ArrayList <String > argList = new ArrayList <String >();
100
106 argList.add("-d");
107 argList.add(_compiler.getClassDirName());
108 if (_compiler.getEncoding() != null) {
109 String encoding = Encoding.getJavaName(_compiler.getEncoding());
110 if (encoding != null && ! encoding.equals("ISO8859_1")) {
111 argList.add("-encoding");
112 argList.add(_compiler.getEncoding());
113 }
114 }
115 argList.add("-classpath");
116 argList.add(_compiler.getClassPath());
117 ArrayList <String > args = _compiler.getArgs();
118 if (args != null)
119 argList.addAll(args);
120
121 for (int i = 0; i < path.length; i++) {
122 Path javaPath = _compiler.getSourceDir().lookup(path[i]);
123 argList.add(javaPath.getNativePath());
124 }
125
126 if (log.isLoggable(Level.FINE)) {
127 CharBuffer msg = new CharBuffer();
128 msg.append("javac(int)");
129 for (int i = 0; i < argList.size(); i++) {
130 msg.append(" ");
131 msg.append(argList.get(i));
132 }
133
134 log.fine(msg.toString());
135 }
136
137 String []argArray = argList.toArray(new String [argList.size()]);
138
139 int status = -1;
140
141 Thread thread = Thread.currentThread();
142 ClassLoader oldLoader = thread.getContextClassLoader();
143 try {
144 EnvironmentClassLoader env;
145 env = new EnvironmentClassLoader(ClassLoader.getSystemClassLoader());
146 thread.setContextClassLoader(env);
147
148 try {
149 Class cl = Class.forName("com.sun.tools.javac.Main", false, env);
150 Object compiler = cl.newInstance();
151 Method compile = null;
152
153 Object value = null;
154
155 try {
156 compile = cl.getMethod("compile", new Class [] { String [].class , PrintWriter .class });
157 value = compile.invoke(compiler, new Object [] { argArray, error.getPrintWriter() });
158
159 } catch (Throwable e) {
160 log.log(Level.FINER, e.toString(), e);
161 }
162
163 if (compile == null) {
164 compile = cl.getMethod("compile", new Class [] { String [].class });
165 value = compile.invoke(compiler, new Object [] { argArray });
166 }
167
168 if (value instanceof Integer )
169 status = ((Integer ) value).intValue();
170 } catch (ClassNotFoundException e) {
171 throw new JavaCompileException(L.l("Can't find internal Java compiler. Either configure an external compiler with <javac> or use a JDK which contains a Java compiler."));
172 } catch (NoSuchMethodException e) {
173 throw new JavaCompileException(e);
174 } catch (InstantiationException e) {
175 throw new JavaCompileException(e);
176 } catch (IllegalAccessException e) {
177 throw new JavaCompileException(e);
178 } catch (InvocationTargetException e) {
179 throw new IOExceptionWrapper(e);
180 }
181
182 error.close();
183 tempStream.close();
184 } finally {
185 thread.setContextClassLoader(oldLoader);
186 }
187
188 ReadStream read = tempStream.openRead();
189 JavacErrorParser parser = new JavacErrorParser(_compiler.getEncoding());
190
191 String errors = parser.parseErrors((InputStream ) read, lineMap);
192 read.close();
193
194 if (errors != null)
195 errors = errors.trim();
196
197 if (log.isLoggable(Level.FINE)) {
198 read = tempStream.openRead();
199 CharBuffer cb = new CharBuffer();
200 int ch;
201 while ((ch = read.read()) >= 0) {
202 cb.append((char) ch);
203 }
204 read.close();
205
206 log.fine(cb.toString());
207 }
208 else if (status == 0 && errors != null && ! errors.equals("")) {
209 final String msg = errors;
210
211 new com.caucho.loader.ClassLoaderContext(_compiler.getClassLoader()) {
212 public void run()
213 {
214 log.warning(msg);
215 }
216 };
217 }
218
219 if (status != 0)
220 throw new JavaCompileException(errors);
221 } finally {
222 tempStream.destroy();
223 }
224 }
225 }
226 |
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