| /* |
| * 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.commons.jelly.tags.ant; |
| |
| import org.apache.commons.beanutils.ConvertUtils; |
| import org.apache.commons.beanutils.Converter; |
| import org.apache.commons.jelly.JellyContext; |
| import org.apache.commons.jelly.JellyException; |
| import org.apache.commons.jelly.Tag; |
| import org.apache.commons.jelly.TagLibrary; |
| import org.apache.commons.jelly.impl.TagFactory; |
| import org.apache.commons.jelly.impl.TagScript; |
| import org.apache.tools.ant.BuildLogger; |
| import org.apache.tools.ant.NoBannerLogger; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.taskdefs.optional.junit.FormatterElement; |
| import org.apache.tools.ant.types.EnumeratedAttribute; |
| import org.apache.tools.ant.types.Reference; |
| import org.xml.sax.Attributes; |
| |
| /** |
| * A Jelly custom tag library that allows Ant tasks to be called from inside Jelly. |
| * |
| * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
| * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a> |
| * @version $Revision$ |
| */ |
| public class AntTagLibrary extends TagLibrary { |
| |
| public static final String PROJECT_CONTEXT_HANDLE = "org.apache.commons.jelly.ant.Project"; |
| |
| static { |
| |
| // register standard converters for Ant types |
| |
| |
| ConvertUtils.register( |
| new Converter() { |
| public Object convert(Class type, Object value) { |
| if ( value instanceof Reference ) { |
| return (Reference) value; |
| } |
| else if ( value != null ) { |
| String text = value.toString(); |
| return new Reference( text ); |
| } |
| return null; |
| } |
| }, |
| Reference.class |
| ); |
| |
| ConvertUtils.register( |
| new Converter() { |
| public Object convert(Class type, Object value) { |
| if ( value instanceof EnumeratedAttribute ) { |
| return (EnumeratedAttribute) value; |
| } |
| else if ( value instanceof String ) { |
| FormatterElement.TypeAttribute attr = new FormatterElement.TypeAttribute(); |
| attr.setValue( (String) value ); |
| return attr; |
| } |
| return null; |
| } |
| |
| }, |
| FormatterElement.TypeAttribute.class |
| ); |
| } |
| |
| |
| /** |
| * A helper method which will attempt to find a project in the current context |
| * or install one if need be. |
| * |
| * #### this method could move to an AntUtils class. |
| */ |
| public static Project getProject(JellyContext context) { |
| Project project = (Project) context.findVariable( PROJECT_CONTEXT_HANDLE ); |
| if ( project == null ) { |
| project = createProject(context); |
| context.setVariable( PROJECT_CONTEXT_HANDLE , project ); |
| } |
| return project; |
| } |
| |
| /** |
| * Sets the Ant Project to be used for this JellyContext. |
| * |
| * #### this method could move to an AntUtils class. |
| */ |
| public static void setProject(JellyContext context, Project project) { |
| context.setVariable( PROJECT_CONTEXT_HANDLE, project ); |
| } |
| |
| /** |
| * A helper method to create a new project |
| * |
| * #### this method could move to an AntUtils class. |
| */ |
| public static Project createProject(JellyContext context) { |
| GrantProject project = new GrantProject(); |
| project.setPropsHandler(new JellyPropsHandler(context)); |
| |
| BuildLogger logger = new NoBannerLogger(); |
| |
| logger.setMessageOutputLevel( org.apache.tools.ant.Project.MSG_INFO ); |
| logger.setOutputPrintStream( System.out ); |
| logger.setErrorPrintStream( System.err); |
| |
| project.addBuildListener( logger ); |
| |
| project.init(); |
| project.getBaseDir(); |
| if (context.getCurrentURL() != null) { |
| project.setProperty("ant.file", |
| context.getCurrentURL().toExternalForm()); |
| } |
| |
| return project; |
| } |
| |
| |
| /** Creates a new script to execute the given tag name and attributes */ |
| public TagScript createTagScript(String name, Attributes attributes) throws JellyException { |
| TagScript answer = createCustomTagScript(name, attributes); |
| if ( answer == null ) { |
| answer = new TagScript( |
| new TagFactory() { |
| public Tag createTag(String name, Attributes attributes) throws JellyException { |
| return AntTagLibrary.this.createTag(name, attributes); |
| } |
| } |
| ); |
| } |
| return answer; |
| } |
| |
| /** |
| * @return a new TagScript for any custom, statically defined tags, like 'fileScanner' |
| */ |
| public TagScript createCustomTagScript(String name, Attributes attributes) { |
| // custom Ant tags |
| if ( name.equals("fileScanner") ) { |
| return new TagScript( |
| new TagFactory() { |
| public Tag createTag(String name, Attributes attributes) { |
| return new FileScannerTag(new FileScanner()); |
| } |
| } |
| ); |
| } |
| if ( name.equals("setProperty") ) { |
| return new TagScript( |
| new TagFactory() { |
| public Tag createTag(String name, Attributes attributes) { |
| return new SetPropertyTag(); |
| } |
| } |
| ); |
| } |
| return null; |
| } |
| |
| /** |
| * A helper method which creates an AntTag instance for the given element name |
| */ |
| public Tag createTag(String name, Attributes attributes) throws JellyException { |
| AntTag tag = new AntTag( name ); |
| if ( name.equals( "echo" ) ) { |
| tag.setTrim(false); |
| } |
| return tag; |
| } |
| |
| |
| } |