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1
52
53 package freemarker.ext.ant;
54
55 import java.io.*;
56 import java.util.Map  ;
57
58 import org.apache.tools.ant.BuildException;
59 import org.apache.tools.ant.ProjectHelper;
60 import org.apache.tools.ant.Task;
61
62 import freemarker.template.utility.ClassUtil;
63
64
72 public class JythonAntTask extends Task {
73
74 private File scriptFile;
75 private String script = "";
76 private UnlinkedJythonOperations jythonOps;
77
78 public void setFile(File scriptFile) throws BuildException {
79 ensureJythonOpsExists();
80 this.scriptFile = scriptFile;
81 }
82
83 public void addText(String text) {
84 script += text;
85 }
86
87 public void execute(Map vars) throws BuildException {
88 if (scriptFile != null) {
89 ensureJythonOpsExists();
90 jythonOps.execute(scriptFile, vars);
91 }
92 if (script.trim().length() >0) {
93 ensureJythonOpsExists();
94 String finalScript = ProjectHelper.replaceProperties(
95 project, script, project.getProperties());
96 jythonOps.execute(finalScript, vars);
97 }
98 }
99
100 private void ensureJythonOpsExists() {
101 if (jythonOps == null) {
102 Class clazz;
103 try {
104 clazz = ClassUtil.forName(
105 "freemarker.ext.ant.UnlinkedJythonOperationsImpl");
106 } catch (ClassNotFoundException e) {
107 throw new RuntimeException (
108 "A ClassNotFoundException has been thrown when trying "
109 + "to get the "
110 + "freemarker.ext.ant.UnlinkedJythonOperationsImpl class. "
111 + "The error message was: " + e.getMessage());
112 }
113 try {
114 jythonOps
115 = (UnlinkedJythonOperations) clazz.newInstance();
116 } catch (Exception e) {
117 throw new RuntimeException (
118 "An exception has been thrown when trying "
119 + "to create a freemarker.ext.ant.JythonAntTask "
120 + "object. The exception was: " + e);
121 }
122 }
123 }
124
125 }
126 |
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