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Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ScriptRunnerHelper.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ScriptRunnerHelper.java | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ScriptRunnerHelper.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ScriptRunnerHelper.java new file mode 100644 index 00000000..9e814d96 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ScriptRunnerHelper.java @@ -0,0 +1,206 @@ +/* + * 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.util; + +import java.io.File; + +import org.apache.tools.ant.ProjectComponent; +import org.apache.tools.ant.types.Path; +import org.apache.tools.ant.types.Reference; +import org.apache.tools.ant.types.ResourceCollection; +import org.apache.tools.ant.types.resources.Union; + +/** + * A class to help in creating, setting and getting script runners. + */ +public class ScriptRunnerHelper { + private ClasspathUtils.Delegate cpDelegate = null; + private File srcFile; + private String manager = "auto"; + private String language; + private String text; + private boolean setBeans = true; + private ProjectComponent projectComponent; + private ClassLoader scriptLoader = null; + private Union resources = new Union(); + + /** + * Set the project component associated with this helper. + * @param component the project component that owns this helper. + */ + public void setProjectComponent(ProjectComponent component) { + this.projectComponent = component; + } + + /** + * Create and set text on a script. + * @return the created or reused script runner. + */ + public ScriptRunnerBase getScriptRunner() { + ScriptRunnerBase runner = getRunner(); + if (srcFile != null) { + runner.setSrc(srcFile); + } + if (text != null) { + runner.addText(text); + } + if (resources != null) { + runner.loadResources(resources); + } + if (setBeans) { + runner.bindToComponent(projectComponent); + } else { + runner.bindToComponentMinimum(projectComponent); + } + return runner; + } + + /** + * Classpath to be used when searching for classes and resources. + * + * @return an empty Path instance to be configured by Ant. + */ + public Path createClasspath() { + return getClassPathDelegate().createClasspath(); + } + + /** + * 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) { + getClassPathDelegate().setClasspath(classpath); + } + + /** + * 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) { + getClassPathDelegate().setClasspathref(r); + } + + /** + * Load the script from an external file ; optional. + * + * @param file the file containing the script source. + */ + public void setSrc(File file) { + this.srcFile = file; + } + + /** + * Add script text. + * + * @param text a component of the script text to be added. + */ + public void addText(String text) { + this.text = text; + } + + /** + * Defines the script manager - defaults to "auto". + * + * @param manager the scripting manager - "bsf" or "javax" or "auto" + */ + public void setManager(String manager) { + this.manager = manager; + } + + /** + * Defines the language (required). + * + * @param language the scripting language name for the script. + */ + public void setLanguage(String language) { + this.language = language; + } + + /** + * Get the language. + * @return the scripting language. + */ + public String getLanguage() { + return language; + } + + /** + * 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. + */ + public void setSetBeans(boolean setBeans) { + this.setBeans = setBeans; + } + + /** + * Used when called by scriptdef. + * @param loader the loader used by scriptdef. + */ + public void setClassLoader(ClassLoader loader) { + scriptLoader = loader; + } + + private synchronized ClassLoader generateClassLoader() { + if (scriptLoader != null) { + return scriptLoader; + } + if (cpDelegate == null) { + scriptLoader = getClass().getClassLoader(); + return scriptLoader; + } + scriptLoader = cpDelegate.getClassLoader(); + return scriptLoader; + } + + private ClasspathUtils.Delegate getClassPathDelegate() { + if (cpDelegate == null) { + if (projectComponent == null) { + throw new IllegalStateException("Can't access classpath without a project component"); + } + cpDelegate = ClasspathUtils.getDelegate(projectComponent); + } + return cpDelegate; + } + + /** + * Get a script runner. + */ + private ScriptRunnerBase getRunner() { + return new ScriptRunnerCreator(projectComponent.getProject()).createRunner( + manager, language, generateClassLoader()); + } + + /** + * Add any source resource. + * + * @param resource source of script + * @since Ant 1.7.1 + */ + public void add(ResourceCollection resource) { + resources.add(resource); + } +} |