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1
28 package net.sf.jasperreports.compilers;
29
30 import java.io.File  ;
31 import java.io.Serializable ;
32
33 import net.sf.jasperreports.engine.JRException;
34 import net.sf.jasperreports.engine.JRReport;
35 import net.sf.jasperreports.engine.design.JRAbstractCompiler;
36 import net.sf.jasperreports.engine.design.JRCompilationUnit;
37 import net.sf.jasperreports.engine.design.JRSourceCompileTask;
38 import net.sf.jasperreports.engine.fill.JRCalculator;
39 import net.sf.jasperreports.engine.fill.JREvaluator;
40
41
42
46 public class JRBshCompiler extends JRAbstractCompiler
47 {
48
49
50 public JRBshCompiler()
51 {
52 super(false);
53 }
54
55
56 protected JREvaluator loadEvaluator(Serializable compileData, String unitName) throws JRException
57 {
58 return new JRBshEvaluator((String ) compileData);
59 }
60
61
62 protected void checkLanguage(String language) throws JRException
63 {
64 if (!JRReport.LANGUAGE_JAVA.equals(language))
65 {
66 throw
67 new JRException(
68 "Language \"" + language
69 + "\" not supported by this report compiler.\n"
70 + "Expecting \"java\" instead."
71 );
72 }
73 }
74
75
76 protected String generateSourceCode(JRSourceCompileTask sourceTask) throws JRException
77 {
78 return JRBshGenerator.generateScript(sourceTask);
79 }
80
81
82 protected String compileUnits(JRCompilationUnit[] units, String classpath, File tempDirFile) throws JRException
83 {
84 verifyScripts(units);
85
86 for (int i = 0; i < units.length; i++)
87 {
88 String script = units[i].getSourceCode();
89 units[i].setCompileData(script);
90 }
91
92 return null;
93 }
94
95
96 private void verifyScripts(JRCompilationUnit[] units) throws JRException
97 {
98 ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
99
100 try
102 {
103 classLoader.loadClass(JRCalculator.class.getName());
104 }
105 catch(ClassNotFoundException e)
106 {
107 classLoader = getClass().getClassLoader();
108 }
109
110 ClassLoader oldContextClassLoader = Thread.currentThread().getContextClassLoader();
111 Thread.currentThread().setContextClassLoader(classLoader);
112
113 for (int i = 0; i < units.length; i++)
114 {
115 String script = units[i].getSourceCode();
116
117 JRBshEvaluator bshEvaluator = new JRBshEvaluator(script);
118 bshEvaluator.verify(units[i].getExpressions());
119 }
120
121 Thread.currentThread().setContextClassLoader(oldContextClassLoader);
122 }
123
124
125 protected String getSourceFileName(String unitName)
126 {
127 return unitName + ".bsh";
128 }
129
130
131 }
132 |
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