001: /*
002: License $Id: ModernSunCompiler.java,v 1.11 2004/12/27 20:18:04 hendriks73 Exp $
003:
004: Copyright (c) 2001-2005 tagtraum industries.
005:
006: LGPL
007: ====
008:
009: jo! is free software; you can redistribute it and/or
010: modify it under the terms of the GNU Lesser General Public
011: License as published by the Free Software Foundation; either
012: version 2.1 of the License, or (at your option) any later version.
013:
014: jo! is distributed in the hope that it will be useful,
015: but WITHOUT ANY WARRANTY; without even the implied warranty of
016: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017: Lesser General Public License for more details.
018:
019: You should have received a copy of the GNU Lesser General Public
020: License along with this library; if not, write to the Free Software
021: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
022:
023: For LGPL see <http://www.fsf.org/copyleft/lesser.txt>
024:
025:
026: Sun license
027: ===========
028:
029: This release contains software by Sun Microsystems. Therefore
030: the following conditions have to be met, too. They apply to the
031: files
032:
033: - lib/mail.jar
034: - lib/activation.jar
035: - lib/jsse.jar
036: - lib/jcert.jar
037: - lib/jaxp.jar
038: - lib/crimson.jar
039: - lib/servlet.jar
040: - lib/jnet.jar
041: - lib/jaas.jar
042: - lib/jaasmod.jar
043:
044: contained in this release.
045:
046: a. Licensee may not modify the Java Platform
047: Interface (JPI, identified as classes contained within the javax
048: package or any subpackages of the javax package), by creating additional
049: classes within the JPI or otherwise causing the addition to or modification
050: of the classes in the JPI. In the event that Licensee creates any
051: Java-related API and distribute such API to others for applet or
052: application development, you must promptly publish broadly, an accurate
053: specification for such API for free use by all developers of Java-based
054: software.
055:
056: b. Software is confidential copyrighted information of Sun and
057: title to all copies is retained by Sun and/or its licensors. Licensee
058: shall not modify, decompile, disassemble, decrypt, extract, or otherwise
059: reverse engineer Software. Software may not be leased, assigned, or
060: sublicensed, in whole or in part. Software is not designed or intended
061: for use in on-line control of aircraft, air traffic, aircraft navigation
062: or aircraft communications; or in the design, construction, operation or
063: maintenance of any nuclear facility. Licensee warrants that it will not
064: use or redistribute the Software for such purposes.
065:
066: c. Software is provided "AS IS," without a warranty
067: of any kind. ALL EXPRESS OR IMPLIED REPRESENTATIONS AND WARRANTIES,
068: INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
069: PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED.
070:
071: d. This License is effective until terminated. Licensee may
072: terminate this License at any time by destroying all copies of Software.
073: This License will terminate immediately without notice from Sun if Licensee
074: fails to comply with any provision of this License. Upon such termination,
075: Licensee must destroy all copies of Software.
076:
077: e. Software, including technical data, is subject to U.S.
078: export control laws, including the U.S. Export Administration Act and its
079: associated regulations, and may be subject to export or import regulations
080: in other countries. Licensee agrees to comply strictly with all such
081: regulations and acknowledges that it has the responsibility to obtain
082: licenses to export, re-export, or import Software. Software may not be
083: downloaded, or otherwise exported or re-exported (i) into, or to a national
084: or resident of, Cuba, Iraq, Iran, North Korea, Libya, Sudan, Syria or any
085: country to which the U.S. has embargoed goods; or (ii) to anyone on the
086: U.S. Treasury Department's list of Specially Designated Nations or the U.S.
087: Commerce Department's Table of Denial Orders.
088:
089:
090: Feedback
091: ========
092:
093: We encourage your feedback and suggestions and want to use your feedback to
094: improve the Software. Send all such feedback to:
095: <feedback@tagtraum.com>
096:
097: For more information on tagtraum industries and jo!
098: please see <http://www.tagtraum.com/>.
099:
100:
101: */
102: package com.tagtraum.framework.compiler;
103:
104: import com.tagtraum.framework.util.URLHelper;
105:
106: import java.io.*;
107: import java.lang.reflect.Method;
108: import java.net.URL;
109: import java.net.URLClassLoader;
110:
111: /**
112: * Encapsulates the compilation process.
113: *
114: * @author <a href="mailto:hs@tagtraum.com">Hendrik Schreiber</a>
115: * @version 1.1beta1 $Id: ModernSunCompiler.java,v 1.11 2004/12/27 20:18:04 hendriks73 Exp $
116: */
117: class ModernSunCompiler extends AbstractCompiler implements Compiler {
118:
119: /**
120: * Source-Version
121: */
122: public static String vcid = "$Id: ModernSunCompiler.java,v 1.11 2004/12/27 20:18:04 hendriks73 Exp $";
123:
124: private static Method compileMethod;
125: private static Method compileWithPrintWriterMethod;
126: private static Exception initException;
127: private static Class javacClass;
128: private static final int COMPILE_SUCCESS = 0;
129: // debugstream
130: private static ByteArrayOutputStream compilerOut = new ByteArrayOutputStream();
131: private static PrintStream compilerOutStream = new PrintStream(
132: compilerOut, true);
133:
134: static {
135: try {
136: javacClass = Class.forName("com.sun.tools.javac.Main");
137: compileMethod = javacClass.getMethod("compile",
138: new Class[] { String[].class });
139: try {
140: compileWithPrintWriterMethod = javacClass.getMethod(
141: "compile", new Class[] { String[].class,
142: PrintWriter.class });
143: } catch (NoSuchMethodException e) {
144: // ignore - we simply don't have JDK 1.5 compiler interface.
145: }
146: } catch (Exception e1) {
147: // add [JAVA_HOME]/../lib/tools.jar to classpath
148: // this should work if the JDK instead of the JRE is used.
149: try {
150: URL[] urls = new URL[1];
151: urls[0] = URLHelper.make(System
152: .getProperty("java.home")
153: + "/../lib/tools.jar");
154: ClassLoader cl = new URLClassLoader(urls);
155: javacClass = Class.forName("com.sun.tools.javac.Main",
156: true, cl);
157: compileMethod = javacClass.getMethod("compile",
158: new Class[] { String[].class });
159: try {
160: compileWithPrintWriterMethod = javacClass
161: .getMethod("compile", new Class[] {
162: String[].class, PrintWriter.class });
163: } catch (NoSuchMethodException e) {
164: // ignore - we simply don't have JDK 1.5 compiler interface.
165: }
166: } catch (Exception e2) {
167: initException = e2;
168: }
169: }
170: }
171:
172: public ModernSunCompiler() throws CompilerException {
173: if (initException != null) {
174: throw new CompilerException(
175: "Failed to initialize ModernSunCompiler: "
176: + initException.toString());
177: }
178: }
179:
180: /**
181: * Compiles the given file.
182: */
183: public void compile(File sourceFile, String aEncoding)
184: throws CompilerException {
185: String[] compilerArgs = new String[] { "-g", "-encoding",
186: aEncoding, "-classpath", classpath, "-d",
187: outputDirectory, sourceFile.toString() };
188:
189: StringBuffer compilerCommand = new StringBuffer(
190: "modern builtin-javac");
191: for (int i = 0; i < compilerArgs.length; i++) {
192: // write to CompilerOut, so that we can controll it
193: compilerCommand.append(' ');
194: compilerCommand.append(compilerArgs[i]);
195: }
196:
197: // use 1.5 compiler is possible.
198: if (compileWithPrintWriterMethod != null)
199: _compileWithPrintWriter(compilerArgs, compilerCommand,
200: sourceFile);
201: else
202: _compile(compilerArgs, compilerCommand, sourceFile);
203:
204: }
205:
206: private void _compile(String[] compilerArgs,
207: StringBuffer compilerCommand, File sourceFile)
208: throws CompilerException {
209: PrintStream err = System.err;
210: PrintStream out = System.out;
211:
212: // this is an attempt to make sure that the whole things is
213: // thread safe and that the streams aren't too much messed up.
214: synchronized (ModernSunCompiler.class) {
215: System.setOut(compilerOutStream);
216: System.setErr(compilerOutStream);
217: try {
218: Object javac = javacClass.newInstance();
219: int result = ((Integer) compileMethod.invoke(javac,
220: new Object[] { compilerArgs })).intValue();
221: if (result != COMPILE_SUCCESS) {
222: compilerOutStream.flush();
223: ErrorMessage[] messages = getErrorMessages(compilerOut
224: .toString());
225: String message = messages == null ? "CompilerCommand : "
226: + compilerCommand
227: + System.getProperty("line.separator")
228: + compilerOut.toString()
229: : compilerCommand.toString();
230: throw new CompilerException(sourceFile.toString(),
231: message, messages);
232: }
233: } catch (CompilerException ce) {
234: throw ce;
235: } catch (Exception e) {
236: e.printStackTrace();
237: throw new CompilerException(sourceFile.toString(), e
238: .getMessage());
239: } finally {
240: System.setErr(err);
241: System.setOut(out);
242: compilerOut.reset();
243: }
244: }
245: }
246:
247: private void _compileWithPrintWriter(String[] compilerArgs,
248: StringBuffer compilerCommand, File sourceFile)
249: throws CompilerException {
250: // this is an attempt to make sure that the whole things is
251: // thread safe
252: synchronized (ModernSunCompiler.class) {
253: final StringWriter stringWriter = new StringWriter();
254: final PrintWriter compilerOutWriter = new PrintWriter(
255: stringWriter);
256:
257: try {
258: Object javac = javacClass.newInstance();
259: int result = ((Integer) compileWithPrintWriterMethod
260: .invoke(javac, new Object[] { compilerArgs,
261: compilerOutWriter })).intValue();
262: if (result != COMPILE_SUCCESS) {
263: compilerOutWriter.flush();
264: ErrorMessage[] messages = getErrorMessages(stringWriter
265: .toString());
266: String message = messages == null ? "CompilerCommand : "
267: + compilerCommand
268: + System.getProperty("line.separator")
269: + stringWriter.toString()
270: : compilerCommand.toString();
271: throw new CompilerException(sourceFile.toString(),
272: message, messages);
273: }
274: } catch (CompilerException ce) {
275: throw ce;
276: } catch (Exception e) {
277: e.printStackTrace();
278: throw new CompilerException(sourceFile.toString(), e
279: .getMessage());
280: }
281: }
282: }
283:
284: public Compiler newInstance() throws CompilerException {
285: return new ModernSunCompiler();
286: }
287:
288: /**
289: * Description of compiler.
290: */
291: public String toString() {
292: return "Built-in modern javac: com.sun.tools.javac.Main";
293: }
294:
295: protected ErrorMessage[] getErrorMessages(String compilerOutput) {
296: return SunCompilerErrorMessageParser
297: .getErrorMessages(compilerOutput);
298: }
299:
300: }
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