Java tutorial
/* * 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.apache.servicemix.war.deployer; import java.io.File; import java.io.FileOutputStream; import java.net.URL; import java.util.jar.Attributes; import java.util.jar.JarEntry; import java.util.jar.JarFile; import java.util.jar.Manifest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.felix.fileinstall.ArtifactTransformer; public class WarDeploymentListener implements ArtifactTransformer { private static final Log LOGGER = LogFactory.getLog(WarDeploymentListener.class); public boolean canHandle(File artifact) { try { JarFile jar = new JarFile(artifact); JarEntry entry = jar.getJarEntry("WEB-INF/web.xml"); // Only handle WAR artifacts if (entry == null) { return false; } // Only handle non OSGi bundles Manifest m = jar.getManifest(); if (m.getMainAttributes().getValue(new Attributes.Name("Bundle-SymbolicName")) != null && m.getMainAttributes().getValue(new Attributes.Name("Bundle-Version")) != null) { return false; } return true; } catch (Exception e) { return false; } } public File transform(File artifact, File tmpDir) { try { URL war = new URL("war:" + artifact.toURL().toString()); File outFile = new File(tmpDir, artifact.getName()); IOUtils.copyAndClose(war.openStream(), new FileOutputStream(outFile)); return outFile; } catch (Exception e) { LOGGER.error("Failed to transform the WAR artifact into an OSGi bundle"); return null; } } }