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1
28 package net.sf.jasperreports.engine.design;
29
30 import java.io.File  ;
31
32 import net.sf.jasperreports.engine.JRException;
33 import net.sf.jasperreports.engine.JRReport;
34 import net.sf.jasperreports.engine.util.JRLoader;
35
36
37
41 public abstract class JRAbstractClassCompiler extends JRAbstractJavaCompiler implements JRMultiClassCompiler
42 {
43
44
45 protected JRAbstractClassCompiler()
46 {
47 super(true);
48 }
49
50
51 protected String compileUnits(JRCompilationUnit[] units, String classpath, File tempDirFile) throws JRException
52 {
53 File [] sources = new File [units.length];
54 for (int i = 0; i < sources.length; i++)
55 {
56 sources[i] = units[i].getSourceFile();
57 }
58
59 File [] classFiles = new File [units.length];
60 for (int i = 0; i < classFiles.length; i++)
61 {
62 classFiles[i] = new File (tempDirFile, units[i].getName() + ".class");
63 }
64
65 try
66 {
67 String errors = compileClasses(sources, classpath);
68
69 if (errors == null)
70 {
71 for (int i = 0; i < units.length; i++)
72 {
73 byte[] classBytes = JRLoader.loadBytes(classFiles[i]);
74 units[i].setCompileData(classBytes);
75 }
76 }
77
78 return errors;
79 }
80 finally
81 {
82 for (int i = 0; i < classFiles.length; i++)
83 {
84 if (classFiles[i].exists())
85 {
86 classFiles[i].delete();
87 }
88 }
89 }
90 }
91
92
93 protected void checkLanguage(String language) throws JRException
94 {
95 if (!JRReport.LANGUAGE_JAVA.equals(language))
96 {
97 throw
98 new JRException(
99 "Language \"" + language
100 + "\" not supported by this report compiler.\n"
101 + "Expecting \"java\" instead."
102 );
103 }
104 }
105
106
107 protected String generateSourceCode(JRSourceCompileTask sourceTask) throws JRException
108 {
109 return JRClassGenerator.generateClass(sourceTask);
110 }
111
112
113 protected String getSourceFileName(String unitName)
114 {
115 return unitName + ".java";
116 }
117 }
118 |
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