| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2002 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.tools.ant.types; |
| |
| import org.apache.tools.ant.AntClassLoader; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.util.FileNameMapper; |
| |
| import java.util.Properties; |
| import java.util.Stack; |
| |
| /** |
| * Element to define a FileNameMapper. |
| * |
| * @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a> |
| */ |
| public class Mapper extends DataType implements Cloneable { |
| |
| protected MapperType type = null; |
| |
| public Mapper(Project p) { |
| setProject(p); |
| } |
| |
| /** |
| * Set the type of FileNameMapper to use. |
| */ |
| public void setType(MapperType type) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| this.type = type; |
| } |
| |
| protected String classname = null; |
| |
| /** |
| * Set the class name of the FileNameMapper to use. |
| */ |
| public void setClassname(String classname) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| this.classname = classname; |
| } |
| |
| protected Path classpath = null; |
| |
| /** |
| * Set the classpath to load the FileNameMapper through (attribute). |
| */ |
| public void setClasspath(Path classpath) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| if (this.classpath == null) { |
| this.classpath = classpath; |
| } else { |
| this.classpath.append(classpath); |
| } |
| } |
| |
| /** |
| * Set the classpath to load the FileNameMapper through (nested element). |
| */ |
| public Path createClasspath() { |
| if (isReference()) { |
| throw noChildrenAllowed(); |
| } |
| if (this.classpath == null) { |
| this.classpath = new Path(getProject()); |
| } |
| return this.classpath.createPath(); |
| } |
| |
| /** |
| * Set the classpath to load the FileNameMapper through via |
| * reference (attribute). |
| */ |
| public void setClasspathRef(Reference r) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| createClasspath().setRefid(r); |
| } |
| |
| protected String from = null; |
| |
| /** |
| * Set the argument to FileNameMapper.setFrom |
| */ |
| public void setFrom(String from) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| this.from = from; |
| } |
| |
| protected String to = null; |
| |
| /** |
| * Set the argument to FileNameMapper.setTo |
| */ |
| public void setTo(String to) { |
| if (isReference()) { |
| throw tooManyAttributes(); |
| } |
| this.to = to; |
| } |
| |
| /** |
| * Make this Mapper instance a reference to another Mapper. |
| * |
| * <p>You must not set any other attribute if you make it a |
| * reference.</p> |
| */ |
| public void setRefid(Reference r) throws BuildException { |
| if (type != null || from != null || to != null) { |
| throw tooManyAttributes(); |
| } |
| super.setRefid(r); |
| } |
| |
| /** |
| * Returns a fully configured FileNameMapper implementation. |
| */ |
| public FileNameMapper getImplementation() throws BuildException { |
| if (isReference()) { |
| return getRef().getImplementation(); |
| } |
| |
| if (type == null && classname == null) { |
| throw new BuildException("one of the attributes type or classname is required"); |
| } |
| |
| if (type != null && classname != null) { |
| throw new BuildException("must not specify both type and classname attribute"); |
| } |
| |
| try { |
| if (type != null) { |
| classname = type.getImplementation(); |
| } |
| |
| Class c = null; |
| if (classpath == null) { |
| c = Class.forName(classname); |
| } else { |
| AntClassLoader al = new AntClassLoader(getProject(), |
| classpath); |
| c = al.loadClass(classname); |
| AntClassLoader.initializeClass(c); |
| } |
| |
| FileNameMapper m = (FileNameMapper) c.newInstance(); |
| m.setFrom(from); |
| m.setTo(to); |
| return m; |
| } catch (BuildException be) { |
| throw be; |
| } catch (Throwable t) { |
| throw new BuildException(t); |
| } finally { |
| if (type != null) { |
| classname = null; |
| } |
| } |
| } |
| |
| /** |
| * Performs the check for circular references and returns the |
| * referenced Mapper. |
| */ |
| protected Mapper getRef() { |
| if (!checked) { |
| Stack stk = new Stack(); |
| stk.push(this); |
| dieOnCircularReference(stk, getProject()); |
| } |
| |
| Object o = ref.getReferencedObject(getProject()); |
| if (!(o instanceof Mapper)) { |
| String msg = ref.getRefId() + " doesn\'t denote a mapper"; |
| throw new BuildException(msg); |
| } else { |
| return (Mapper) o; |
| } |
| } |
| |
| /** |
| * Class as Argument to FileNameMapper.setType. |
| */ |
| public static class MapperType extends EnumeratedAttribute { |
| private Properties implementations; |
| |
| public MapperType() { |
| implementations = new Properties(); |
| implementations.put("identity", |
| "org.apache.tools.ant.util.IdentityMapper"); |
| implementations.put("flatten", |
| "org.apache.tools.ant.util.FlatFileNameMapper"); |
| implementations.put("glob", |
| "org.apache.tools.ant.util.GlobPatternMapper"); |
| implementations.put("merge", |
| "org.apache.tools.ant.util.MergingMapper"); |
| implementations.put("regexp", |
| "org.apache.tools.ant.util.RegexpPatternMapper"); |
| implementations.put("package", |
| "org.apache.tools.ant.util.PackageNameMapper"); |
| } |
| |
| public String[] getValues() { |
| return new String[] {"identity", "flatten", "glob", |
| "merge", "regexp", "package"}; |
| } |
| |
| public String getImplementation() { |
| return implementations.getProperty(getValue()); |
| } |
| } |
| |
| } |
