| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2002 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.taskdefs; |
| |
| |
| import java.io.File; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Task; |
| |
| /** |
| * Abstract Base class for unpack tasks. |
| * |
| * @author <a href="mailto:umagesh@apache.org">Magesh Umasankar</a> |
| * |
| * @since Ant 1.5 |
| */ |
| |
| public abstract class Unpack extends Task { |
| |
| protected File source; |
| protected File dest; |
| |
| /** |
| * @deprecated setSrc(String) is deprecated and is replaced with |
| * setSrc(File) to make Ant's Introspection |
| * mechanism do the work and also to encapsulate operations on |
| * the type in its own class. |
| */ |
| public void setSrc(String src) { |
| log("DEPRECATED - The setSrc(String) method has been deprecated." |
| + " Use setSrc(File) instead."); |
| setSrc(project.resolveFile(src)); |
| } |
| |
| /** |
| * @deprecated setDest(String) is deprecated and is replaced with |
| * setDest(File) to make Ant's Introspection |
| * mechanism do the work and also to encapsulate operations on |
| * the type in its own class. |
| */ |
| public void setDest(String dest) { |
| log("DEPRECATED - The setDest(String) method has been deprecated." |
| + " Use setDest(File) instead."); |
| setDest(project.resolveFile(dest)); |
| } |
| |
| public void setSrc(File src) { |
| source = src; |
| } |
| |
| public void setDest(File dest) { |
| this.dest = dest; |
| } |
| |
| private void validate() throws BuildException { |
| if (source == null) { |
| throw new BuildException("No Src specified", location); |
| } |
| |
| if (!source.exists()) { |
| throw new BuildException("Src doesn't exist", location); |
| } |
| |
| if (source.isDirectory()) { |
| throw new BuildException("Cannot expand a directory", location); |
| } |
| |
| if (dest == null) { |
| dest = new File(source.getParent()); |
| } |
| |
| if (dest.isDirectory()) { |
| String defaultExtension = getDefaultExtension(); |
| createDestFile(defaultExtension); |
| } |
| } |
| |
| private void createDestFile(String defaultExtension) { |
| String sourceName = source.getName(); |
| int len = sourceName.length(); |
| if (defaultExtension != null |
| && len > defaultExtension.length() |
| && defaultExtension.equalsIgnoreCase(sourceName.substring(len - defaultExtension.length()))) { |
| dest = new File(dest, sourceName.substring(0, |
| len - defaultExtension.length())); |
| } else { |
| dest = new File(dest, sourceName); |
| } |
| } |
| |
| public void execute() throws BuildException { |
| File savedDest = dest; // may be altered in validate |
| try { |
| validate(); |
| extract(); |
| } finally { |
| dest = savedDest; |
| } |
| } |
| |
| protected abstract String getDefaultExtension(); |
| protected abstract void extract(); |
| } |