01: /*
02: * ============================================================================
03: * GNU Lesser General Public License
04: * ============================================================================
05: *
06: * JasperReports - Free Java report-generating library.
07: * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
08: *
09: * This library is free software; you can redistribute it and/or
10: * modify it under the terms of the GNU Lesser General Public
11: * License as published by the Free Software Foundation; either
12: * version 2.1 of the License, or (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17: * Lesser General Public License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22: *
23: * JasperSoft Corporation
24: * 303 Second Street, Suite 450 North
25: * San Francisco, CA 94107
26: * http://www.jaspersoft.com
27: */
28: package net.sf.jasperreports.engine.design;
29:
30: import java.io.ByteArrayOutputStream;
31: import java.io.File;
32: import java.io.OutputStream;
33: import java.lang.reflect.Constructor;
34: import java.lang.reflect.Method;
35:
36: import net.sf.jasperreports.engine.JRException;
37: import net.sf.jasperreports.engine.util.JRClassLoader;
38:
39: /**
40: * @author Teodor Danciu (teodord@users.sourceforge.net)
41: * @version $Id: JRJdk12Compiler.java 1712 2007-04-30 18:04:51Z teodord $
42: */
43: public class JRJdk12Compiler extends JRAbstractMultiClassCompiler {
44:
45: /**
46: *
47: */
48: public String compileClasses(File[] sourceFiles, String classpath)
49: throws JRException {
50: String[] source = new String[sourceFiles.length + 2];
51: for (int i = 0; i < sourceFiles.length; i++) {
52: source[i] = sourceFiles[i].getPath();
53: }
54: source[sourceFiles.length] = "-classpath";
55: source[sourceFiles.length + 1] = classpath;
56:
57: ByteArrayOutputStream baos = new ByteArrayOutputStream();
58:
59: try {
60: Class javacClass = JRClassLoader
61: .loadClassForRealName("sun.tools.javac.Main");
62: Constructor constructor = javacClass
63: .getConstructor(new Class[] { OutputStream.class,
64: String.class });
65: Method compileMethod = javacClass.getMethod("compile",
66: new Class[] { String[].class });
67: Object javac = constructor.newInstance(new Object[] { baos,
68: source[0] });
69:
70: compileMethod.invoke(javac, new Object[] { source });
71: } catch (Exception e) {
72: StringBuffer files = new StringBuffer();
73: for (int i = 0; i < sourceFiles.length; ++i) {
74: files.append(sourceFiles[i].getPath());
75: files.append(' ');
76: }
77: throw new JRException(
78: "Error compiling report java source files : "
79: + files, e);
80: }
81:
82: if (baos.toString().indexOf("error") != -1) {
83: return baos.toString();
84: }
85:
86: return null;
87: }
88:
89: }
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