| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000 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.taskdefs; |
| |
| import java.io.File; |
| import java.util.Hashtable; |
| import java.util.Vector; |
| |
| import org.apache.tools.ant.*; |
| import org.apache.tools.ant.types.*; |
| import org.apache.tools.ant.util.*; |
| |
| /** |
| * Executes a given command, supplying a set of files as arguments. |
| * |
| * <p>Only those files that are newer than their corresponding target |
| * files will be handeled, the rest will be ignored.</p> |
| * |
| * @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a> |
| */ |
| public class Transform extends ExecuteOn { |
| |
| protected Commandline.Marker targetFilePos = null; |
| protected Mapper mapperElement = null; |
| protected FileNameMapper mapper = null; |
| protected File destDir = null; |
| |
| /** |
| * Has <srcfile> been specified before <targetfile> |
| */ |
| protected boolean srcIsFirst = true; |
| |
| /** |
| * Set the destination directory. |
| */ |
| public void setDest(File destDir) { |
| this.destDir = destDir; |
| } |
| |
| /** |
| * Marker that indicates where the name of the target file should |
| * be put on the command line. |
| */ |
| public Commandline.Marker createTargetfile() { |
| if (targetFilePos != null) { |
| throw new BuildException(taskType + " doesn\'t support multiple targetfile elements.", |
| location); |
| } |
| targetFilePos = cmdl.createMarker(); |
| srcIsFirst = (srcFilePos != null); |
| return targetFilePos; |
| } |
| |
| /** |
| * Defines the FileNameMapper to use (nested mapper element). |
| */ |
| public Mapper createMapper() throws BuildException { |
| if (mapperElement != null) { |
| throw new BuildException("Cannot define more than one mapper", |
| location); |
| } |
| mapperElement = new Mapper(project); |
| return mapperElement; |
| } |
| |
| protected void checkConfiguration() { |
| super.checkConfiguration(); |
| if (mapperElement == null) { |
| throw new BuildException("no mapper specified", location); |
| } |
| if (destDir == null) { |
| throw new BuildException("no dest attribute specified", location); |
| } |
| |
| mapper = mapperElement.getImplementation(); |
| } |
| |
| /** |
| * Return the list of files from this DirectoryScanner that should |
| * be included on the command line - i.e. only those that are |
| * newer than the corresponding target files. |
| */ |
| protected String[] getFiles(File baseDir, DirectoryScanner ds) { |
| SourceFileScanner sfs = new SourceFileScanner(this); |
| return sfs.restrict(ds.getIncludedFiles(), baseDir, destDir, mapper); |
| } |
| |
| /** |
| * Return the list of Directories from this DirectoryScanner that |
| * should be included on the command line - i.e. only those that |
| * are newer than the corresponding target files. |
| */ |
| protected String[] getDirs(File baseDir, DirectoryScanner ds) { |
| SourceFileScanner sfs = new SourceFileScanner(this); |
| return sfs.restrict(ds.getIncludedDirectories(), baseDir, destDir, |
| mapper); |
| } |
| |
| /** |
| * Construct the command line for parallel execution. |
| * |
| * @param srcFiles The filenames to add to the commandline |
| * @param baseDir filenames are relative to this dir |
| */ |
| protected String[] getCommandline(String[] srcFiles, File baseDir) { |
| if (targetFilePos == null) { |
| return super.getCommandline(srcFiles, baseDir); |
| } |
| |
| Vector targets = new Vector(); |
| Hashtable addedFiles = new Hashtable(); |
| for (int i=0; i<srcFiles.length; i++) { |
| String[] subTargets = mapper.mapFileName(srcFiles[i]); |
| if (subTargets != null) { |
| for (int j=0; j<subTargets.length; j++) { |
| String name = (new File(destDir, subTargets[j])).getAbsolutePath(); |
| if (!addedFiles.contains(name)) { |
| targets.addElement(name); |
| addedFiles.put(name, name); |
| } |
| } |
| } |
| } |
| String[] targetFiles = new String[targets.size()]; |
| targets.copyInto(targetFiles); |
| |
| String[] orig = cmdl.getCommandline(); |
| String[] result = new String[orig.length+srcFiles.length+targetFiles.length]; |
| |
| int srcIndex = orig.length; |
| if (srcFilePos != null) { |
| srcIndex = srcFilePos.getPosition(); |
| } |
| int targetIndex = targetFilePos.getPosition(); |
| |
| if (srcIndex < targetIndex || (srcIndex == targetIndex && srcIsFirst)) { |
| // 0 --> srcIndex |
| System.arraycopy(orig, 0, result, 0, srcIndex); |
| |
| // srcIndex --> targetIndex |
| System.arraycopy(orig, srcIndex, result, |
| srcIndex + srcFiles.length, |
| targetIndex - srcIndex); |
| |
| // targets are already absolute file names |
| System.arraycopy(targetFiles, 0, result, |
| targetIndex + srcFiles.length, |
| targetFiles.length); |
| |
| // targetIndex --> end |
| System.arraycopy(orig, targetIndex, result, |
| targetIndex + srcFiles.length + targetFiles.length, |
| orig.length - targetIndex); |
| } else { |
| // 0 --> targetIndex |
| System.arraycopy(orig, 0, result, 0, targetIndex); |
| |
| // targets are already absolute file names |
| System.arraycopy(targetFiles, 0, result, |
| targetIndex, |
| targetFiles.length); |
| |
| // targetIndex --> srcIndex |
| System.arraycopy(orig, targetIndex, result, |
| targetIndex + targetFiles.length, |
| srcIndex - targetIndex); |
| |
| // srcIndex --> end |
| System.arraycopy(orig, srcIndex, result, |
| srcIndex + srcFiles.length + targetFiles.length, |
| orig.length - srcIndex); |
| srcIndex += targetFiles.length; |
| } |
| |
| |
| for (int i=0; i < srcFiles.length; i++) { |
| result[srcIndex+i] = |
| (new File(baseDir, srcFiles[i])).getAbsolutePath(); |
| } |
| return result; |
| |
| } |
| |
| /** |
| * Construct the command line for serial execution. |
| * |
| * @param srcFile The filename to add to the commandline |
| * @param baseDir filename is relative to this dir |
| */ |
| protected String[] getCommandline(String srcFile, File baseDir) { |
| return getCommandline(new String[] {srcFile}, baseDir); |
| } |
| |
| } |