001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    package org.apache.geronimo.console.car;
018    
019    import org.apache.geronimo.kernel.Kernel;
020    import org.apache.geronimo.kernel.KernelRegistry;
021    import org.apache.geronimo.kernel.config.ConfigurationManager;
022    import org.apache.geronimo.kernel.config.ConfigurationStore;
023    import org.apache.geronimo.kernel.config.ConfigurationUtil;
024    import org.apache.geronimo.kernel.config.NoSuchConfigException;
025    import org.apache.geronimo.kernel.repository.Artifact;
026    
027    import javax.servlet.ServletException;
028    import javax.servlet.http.HttpServlet;
029    import javax.servlet.http.HttpServletRequest;
030    import javax.servlet.http.HttpServletResponse;
031    import java.io.IOException;
032    
033    /**
034     * Servlet that lets you download a CAR from the repository
035     *
036     * @version $Rev: 476061 $ $Date: 2006-11-17 01:36:50 -0500 (Fri, 17 Nov 2006) $
037     */
038    public class CARExportServlet extends HttpServlet {
039        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
040            String configId = request.getParameter("configId");
041            if(configId == null) {
042                throw new ServletException("No configId specified for CAR download");
043            }
044            Artifact artifact = Artifact.create(configId);
045            Kernel kernel = KernelRegistry.getSingleKernel();
046            ConfigurationManager mgr = ConfigurationUtil.getConfigurationManager(kernel);
047            ConfigurationStore store = mgr.getStoreForConfiguration(artifact);
048            try {
049                response.setContentType("application/zip");
050                store.exportConfiguration(artifact, response.getOutputStream());
051            } catch (NoSuchConfigException e) {
052                throw new ServletException("No such configuration '"+configId+"'");
053            }
054        }
055    }