| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package freemarker.ext.ant; |
| |
| import java.io.File; |
| import java.util.Map; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.ProjectHelper; |
| import org.apache.tools.ant.Task; |
| |
| import freemarker.template.utility.ClassUtil; |
| |
| /** |
| * Used internally, public for technical reasons only. |
| * |
| * <p>This is an Ant sub-task of the {@link FreemarkerXmlTask} task. |
| * |
| * <p><b>Warning! It must not be statically linked with Jython classes</b>, |
| * so users can use the XML ant task even if Jython is not installed. |
| */ |
| public class JythonAntTask extends Task { |
| |
| private File scriptFile; |
| private String script = ""; |
| private UnlinkedJythonOperations jythonOps; |
| |
| public void setFile(File scriptFile) throws BuildException { |
| ensureJythonOpsExists(); |
| this.scriptFile = scriptFile; |
| } |
| |
| public void addText(String text) { |
| script += text; |
| } |
| |
| public void execute(Map vars) throws BuildException { |
| if (scriptFile != null) { |
| ensureJythonOpsExists(); |
| jythonOps.execute(scriptFile, vars); |
| } |
| if (script.trim().length() > 0) { |
| ensureJythonOpsExists(); |
| String finalScript = ProjectHelper.replaceProperties( |
| project, script, project.getProperties()); |
| jythonOps.execute(finalScript, vars); |
| } |
| } |
| |
| private void ensureJythonOpsExists() { |
| if (jythonOps == null) { |
| Class clazz; |
| try { |
| clazz = ClassUtil.forName( |
| "freemarker.ext.ant.UnlinkedJythonOperationsImpl"); |
| } catch (ClassNotFoundException e) { |
| throw new RuntimeException( |
| "A ClassNotFoundException has been thrown when trying " |
| + "to get the " |
| + "freemarker.ext.ant.UnlinkedJythonOperationsImpl class. " |
| + "The error message was: " + e.getMessage()); |
| } |
| try { |
| jythonOps |
| = (UnlinkedJythonOperations) clazz.newInstance(); |
| } catch (Exception e) { |
| throw new RuntimeException( |
| "An exception has been thrown when trying " |
| + "to create a freemarker.ext.ant.JythonAntTask " |
| + "object. The exception was: " + e); |
| } |
| } |
| } |
| |
| } |