| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.nbbuild; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.util.jar.Manifest; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Task; |
| |
| /** |
| * Task which parses given manifest file, searches for given attribute |
| * and stores it in property. |
| * |
| * @author Richard Michalsky |
| */ |
| public class ParseManifest extends Task { |
| |
| /** |
| * Path to manifest. |
| */ |
| private File manifest; |
| public void setManifest(File manifest) { |
| this.manifest = manifest; |
| } |
| /** |
| * Task sets attribute name to given property. |
| * If attribute is not found, property remains unset. |
| */ |
| private String property; |
| public void setProperty(String property) { |
| this.property = property; |
| } |
| |
| private String attribute; |
| /** |
| * Name of attribute to be read from given manifest. |
| * @param attribute |
| */ |
| public void setAttribute(String attribute) { |
| this.attribute = attribute; |
| } |
| |
| |
| @Override |
| public void execute() throws BuildException { |
| if (manifest == null) { |
| throw new BuildException("Must specify parameter 'manifest'."); |
| } |
| if (property == null) { |
| throw new BuildException("Must specify parameter 'property'."); |
| } |
| if (attribute == null) { |
| throw new BuildException("Must specify parameter 'attribute'."); |
| } |
| try { |
| try (BufferedInputStream is = new BufferedInputStream(new FileInputStream(manifest))) { |
| Manifest mf = new Manifest(is); |
| String attr = mf.getMainAttributes().getValue(attribute); |
| if (attr == null) |
| return; |
| getProject().setProperty(property, attr); |
| } |
| } catch (Exception x) { |
| throw new BuildException("Reading manifest " + manifest + ": " + x, x, getLocation()); |
| } |
| } |
| |
| } |