runtime/org.argeo.slc.server/src/main/java/org/argeo/slc/web/mvc/provisioning/BundleHandler.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.argeo.slc.web.mvc.provisioning;
  18
  19 import java.io.IOException;
  20
  21 import javax.servlet.ServletException;
  22 import javax.servlet.http.HttpServletRequest;
  23 import javax.servlet.http.HttpServletResponse;
  24
  25 import org.apache.commons.io.IOUtils;
  26 import org.apache.commons.logging.Log;
  27 import org.apache.commons.logging.LogFactory;
  28 import org.argeo.slc.StreamReadable;
  29 import org.argeo.slc.UnsupportedException;
  30 import org.argeo.slc.build.Distribution;
  31 import org.argeo.slc.build.ModularDistribution;
  32 import org.springframework.web.HttpRequestHandler;
  33
  34 public class BundleHandler implements HttpRequestHandler {
  35         private final static Log log = LogFactory.getLog(BundleHandler.class);
  36
  37         public void handleRequest(HttpServletRequest request,
  38                         HttpServletResponse response) throws ServletException, IOException {
  39                 String path = request.getPathInfo();
  40
  41                 if (log.isDebugEnabled())
  42                         log.debug("Bundle jar Requested: " + path);
  43                 response.setContentType("application/java-archive");
  44
  45                 String moduleName = request.getParameter("moduleName");
  46                 if (moduleName == null)
  47                         moduleName = request.getAttribute("moduleName").toString();
  48                 String moduleVersion = request.getParameter("moduleVersion");
  49                 if (moduleVersion == null)
  50                         moduleVersion = request.getAttribute("moduleVersion").toString();
  51
  52                 ModularDistribution modularDistribution = (ModularDistribution) request
  53                                 .getAttribute("modularDistribution");
  54                 Distribution distribution = modularDistribution.getModuleDistribution(
  55                                 moduleName, moduleVersion);
  56                 if (distribution instanceof StreamReadable)
  57                         IOUtils.copy(((StreamReadable) distribution).getInputStream(),
  58                                         response.getOutputStream());
  59                 else
  60                         throw new UnsupportedException("distribution", distribution);
  61         }
  62 }