| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 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.optional.extension; |
| |
| import java.io.File; |
| import java.util.Iterator; |
| import java.util.Vector; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.DirectoryScanner; |
| import org.apache.tools.ant.Task; |
| import org.apache.tools.ant.types.FileSet; |
| |
| /** |
| * Displays the "Optional Package" and "Package Specification" information |
| * contained within the specified JARs. |
| * |
| * <p>Prior to JDK1.3, an "Optional Package" was known as an Extension. |
| * The specification for this mechanism is available in the JDK1.3 |
| * documentation in the directory |
| * $JDK_HOME/docs/guide/extensions/versioning.html. Alternatively it is |
| * available online at <a href="http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html"> |
| * http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html</a>.</p> |
| * |
| * @author <a href="mailto:peter@apache.org">Peter Donald</a> |
| * @ant.task name="jarlib-display" |
| */ |
| public class JarLibDisplayTask |
| extends Task |
| { |
| /** |
| * The library to display information about. |
| */ |
| private File m_file; |
| |
| /** |
| * Filesets specifying all the librarys |
| * to display information about. |
| */ |
| private final Vector m_filesets = new Vector(); |
| |
| /** |
| * The JAR library to display information for. |
| * |
| * @param file The jar library to display information for. |
| */ |
| public void setFile( final File file ) |
| { |
| m_file = file; |
| } |
| |
| /** |
| * Adds a set of files about which library data will be displayed. |
| * |
| * @param fileSet a set of files about which library data will be displayed. |
| */ |
| public void addFileset( final FileSet fileSet ) |
| { |
| m_filesets.addElement( fileSet ); |
| } |
| |
| public void execute() |
| throws BuildException |
| { |
| validate(); |
| |
| final LibraryDisplayer displayer = new LibraryDisplayer(); |
| // Check if list of files to check has been specified |
| if( !m_filesets.isEmpty() ) |
| { |
| final Iterator iterator = m_filesets.iterator(); |
| while( iterator.hasNext() ) |
| { |
| final FileSet fileSet = (FileSet)iterator.next(); |
| final DirectoryScanner scanner = fileSet.getDirectoryScanner( getProject() ); |
| final File basedir = scanner.getBasedir(); |
| final String[] files = scanner.getIncludedFiles(); |
| for( int i = 0; i < files.length; i++ ) |
| { |
| final File file = new File( basedir, files[ i ] ); |
| displayer.displayLibrary( file ); |
| } |
| } |
| } |
| else |
| { |
| displayer.displayLibrary( m_file ); |
| } |
| } |
| |
| /** |
| * Validate the tasks parameters. |
| * |
| * @throws BuildException if invalid parameters found |
| */ |
| private void validate() |
| throws BuildException |
| { |
| if( null == m_file && m_filesets.isEmpty() ) |
| { |
| final String message = "File attribute not specified."; |
| throw new BuildException( message ); |
| } |
| if( null != m_file && !m_file.exists() ) |
| { |
| final String message = "File '" + m_file + "' does not exist."; |
| throw new BuildException( message ); |
| } |
| if( null != m_file && !m_file.isFile() ) |
| { |
| final String message = "\'" + m_file + "\' is not a file."; |
| throw new BuildException( message ); |
| } |
| } |
| } |