| /* |
| * 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 "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.text.ParseException; |
| import java.util.jar.Manifest; |
| import org.apache.tools.ant.BuildException; |
| |
| /** |
| * Utility class to output the information in a jar relating |
| * to "Optional Packages" (formely known as "Extensions") |
| * and Package Specifications. |
| * |
| * @author <a href="mailto:peter@apache.org">Peter Donald</a> |
| * @version $Revision$ $Date$ |
| */ |
| class LibraryDisplayer { |
| /** |
| * Display the extensions and specifications contained |
| * within specified file. |
| * |
| * @param file the file |
| * @throws BuildException if fail to read file |
| */ |
| void displayLibrary(final File file) |
| throws BuildException { |
| final Manifest manifest = ExtensionUtil.getManifest(file); |
| displayLibrary(file, manifest); |
| } |
| |
| /** |
| * Display the extensions and specifications contained |
| * within specified file. |
| * |
| * @param file the file to use while reporting |
| * @param manifest the manifest of file |
| * @throws BuildException if fail to read file |
| */ |
| void displayLibrary(final File file, |
| final Manifest manifest) |
| throws BuildException { |
| final Extension[] available = Extension.getAvailable(manifest); |
| final Extension[] required = Extension.getRequired(manifest); |
| final Extension[] options = Extension.getOptions(manifest); |
| final Specification[] specifications = getSpecifications(manifest); |
| |
| if (0 == available.length && 0 == required.length && 0 == options.length |
| && 0 == specifications.length) { |
| return; |
| } |
| |
| final String message = "File: " + file; |
| final int size = message.length(); |
| printLine(size); |
| System.out.println(message); |
| printLine(size); |
| if (0 != available.length) { |
| System.out.println("Extensions Supported By Library:"); |
| for (int i = 0; i < available.length; i++) { |
| final Extension extension = available[ i ]; |
| System.out.println(extension.toString()); |
| } |
| } |
| |
| if (0 != required.length) { |
| System.out.println("Extensions Required By Library:"); |
| for (int i = 0; i < required.length; i++) { |
| final Extension extension = required[ i ]; |
| System.out.println(extension.toString()); |
| } |
| } |
| |
| if (0 != options.length) { |
| System.out.println("Extensions that will be used by Library if present:"); |
| for (int i = 0; i < options.length; i++) { |
| final Extension extension = options[ i ]; |
| System.out.println(extension.toString()); |
| } |
| } |
| |
| if (0 != specifications.length) { |
| System.out.println("Specifications Supported By Library:"); |
| for (int i = 0; i < specifications.length; i++) { |
| final Specification specification = specifications[ i ]; |
| displaySpecification(specification); |
| } |
| } |
| } |
| |
| /** |
| * Print out a line of '-'s equal to specified size. |
| * |
| * @param size the number of dashes to printout |
| */ |
| private void printLine(final int size) { |
| for (int i = 0; i < size; i++) { |
| System.out.print("-"); |
| } |
| System.out.println(); |
| } |
| |
| /** |
| * Get specifications from manifest. |
| * |
| * @param manifest the manifest |
| * @return the specifications or null if none |
| * @throws BuildException if malformed specification sections |
| */ |
| private Specification[] getSpecifications(final Manifest manifest) |
| throws BuildException { |
| try { |
| return Specification.getSpecifications(manifest); |
| } catch (final ParseException pe) { |
| throw new BuildException(pe.getMessage(), pe); |
| } |
| } |
| |
| /** |
| * Print out specification details. |
| * |
| * @param specification the specification |
| */ |
| private void displaySpecification(final Specification specification) { |
| final String[] sections = specification.getSections(); |
| if (null != sections) { |
| final StringBuffer sb = new StringBuffer("Sections: "); |
| for (int i = 0; i < sections.length; i++) { |
| sb.append(" "); |
| sb.append(sections[ i ]); |
| } |
| System.out.println(sb); |
| } |
| System.out.println(specification.toString()); |
| } |
| } |