| /* |
| * 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.cauldron.bld.ant; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.jar.JarFile; |
| import java.util.jar.Manifest; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Task; |
| |
| public class BundleInfoTask extends Task { |
| private File bundle; |
| private String header; |
| private String property; |
| private String defaultValue; |
| |
| @Override |
| public void execute() throws BuildException { |
| if (bundle == null) |
| throw new BuildException("missing attribute: bundle"); |
| if (header == null) |
| throw new BuildException("missing attribute: header"); |
| |
| try { |
| JarFile jar = new JarFile(bundle); |
| Manifest mf = jar.getManifest(); |
| String value = mf.getMainAttributes().getValue(header); |
| if ( property == null ) { |
| log(header + "=" + value); |
| } |
| else { |
| if ("Bundle-SymbolicName".equals(header) && value != null) { |
| // remove singleton flag |
| int semi = value.indexOf(';'); |
| if (semi > 0) |
| value = value.substring(0, semi); |
| } |
| if ( value == null ) { |
| value = defaultValue; |
| } |
| if ( value != null ) { |
| getProject().setNewProperty(property, value); |
| } |
| } |
| } catch (IOException e) { |
| throw new BuildException( "Failed to access bundle", e); |
| } |
| } |
| |
| public void setBundle(String bundle) { |
| this.bundle = new File( bundle ); |
| } |
| |
| public void setHeader(String header) { |
| this.header = header; |
| } |
| |
| public void setProperty(String property) { |
| this.property = property; |
| } |
| |
| public void setDefaultValue(String defaultValue) { |
| this.defaultValue = defaultValue; |
| } |
| } |