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/*
* 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 org.apache.tools.ant.types.optional;
import java.io.File;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.filters.TokenFilter;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.util.ScriptRunnerBase;
import org.apache.tools.ant.util.ScriptRunnerHelper;
/**
* Most of this is CAP (Cut And Paste) from the Script task
* ScriptFilter class, implements TokenFilter.Filter
* for scripts to use.
* This provides the same beans as the Script Task
* to a script.
* The script is meant to use get self.token and
* set self.token in the reply.
*
* @since Ant 1.6
*/
public class ScriptFilter extends TokenFilter.ChainableReaderFilter {
/** script runner helper */
private ScriptRunnerHelper helper = new ScriptRunnerHelper();
/** script runner. */
private ScriptRunnerBase runner = null;
/** the token used by the script */
private String token;
/**
* Set the project.
* @param project the owner of this component.
*/
public void setProject(Project project) {
super.setProject(project);
helper.setProjectComponent(this);
}
/**
* Defines the language (required).
*
* @param language the scripting language name for the script.
*/
public void setLanguage(String language) {
helper.setLanguage(language);
}
/**
* Initialize.
*
* @exception BuildException if someting goes wrong
*/
private void init() throws BuildException {
if (runner != null) {
return;
}
runner = helper.getScriptRunner();
}
/**
* The current token
*
* @param token the string filtered by the script
*/
public void setToken(String token) {
this.token = token;
}
/**
* The current token
*
* @return the string filtered by the script
*/
public String getToken() {
return token;
}
/**
* Called filter the token.
* This sets the token in this object, calls
* the script and returns the token.
*
* @param token the token to be filtered
* @return the filtered token
*/
public String filter(String token) {
init();
setToken(token);
runner.executeScript("ant_filter");
return getToken();
}
/**
* Load the script from an external file ; optional.
*
* @param file the file containing the script source.
*/
public void setSrc(File file) {
helper.setSrc(file);
}
/**
* The script text.
*
* @param text a component of the script text to be added.
*/
public void addText(String text) {
helper.addText(text);
}
/**
* Defines the manager.
*
* @param manager the scripting manager.
*/
public void setManager(String manager) {
helper.setManager(manager);
}
/**
* Set the classpath to be used when searching for classes and resources.
*
* @param classpath an Ant Path object containing the search path.
*/
public void setClasspath(Path classpath) {
helper.setClasspath(classpath);
}
/**
* Classpath to be used when searching for classes and resources.
*
* @return an empty Path instance to be configured by Ant.
*/
public Path createClasspath() {
return helper.createClasspath();
}
/**
* Set the classpath by reference.
*
* @param r a Reference to a Path instance to be used as the classpath
* value.
*/
public void setClasspathRef(Reference r) {
helper.setClasspathRef(r);
}
/**
* Set the setbeans attribute.
* If this is true, <script> will create variables in the
* script instance for all
* properties, targets and references of the current project.
* It this is false, only the project and self variables will
* be set.
* The default is true.
* @param setBeans the value to set.
* @since Ant 1.8.0
*/
public void setSetBeans(boolean setBeans) {
helper.setSetBeans(setBeans);
}
}
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