org.argeo.slc.core/src/org/argeo/slc/osgi/build/OsgiRuntimeModularDistribution.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   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 package org.argeo.slc.osgi.build;
  17
  18 import java.net.URL;
  19 import java.util.SortedMap;
  20
  21 import org.apache.commons.logging.Log;
  22 import org.apache.commons.logging.LogFactory;
  23 import org.argeo.slc.NameVersion;
  24 import org.argeo.slc.build.Distribution;
  25 import org.argeo.slc.core.build.VersionedResourceDistribution;
  26 import org.argeo.slc.osgi.OsgiBundle;
  27 import org.osgi.framework.Bundle;
  28 import org.springframework.context.ResourceLoaderAware;
  29 import org.springframework.core.io.Resource;
  30 import org.springframework.core.io.ResourceLoader;
  31 import org.eclipse.gemini.blueprint.util.OsgiBundleUtils;
  32
  33 public class OsgiRuntimeModularDistribution extends
  34                 AbstractOsgiModularDistribution implements ResourceLoaderAware {
  35         private final static Log log = LogFactory
  36                         .getLog(OsgiRuntimeModularDistribution.class);
  37
  38         private ResourceLoader resourceLoader;
  39
  40         protected void fillDistributions(
  41                         SortedMap<NameVersion, Distribution> distributions)
  42                         throws Exception {
  43
  44                 String frameworkUrl = System.getProperty("osgi.framework");
  45                 String frameworkBaseUrl = null;
  46                 if (frameworkUrl != null)
  47                         frameworkBaseUrl = frameworkUrl.substring(0, frameworkUrl
  48                                         .lastIndexOf('/'));
  49                 bundles: for (Bundle bundle : getBundleContext().getBundles()) {
  50                         OsgiBundle osgiBundle = new OsgiBundle(bundle);
  51
  52                         String originalLocation = bundle.getLocation();
  53
  54                         if (OsgiBundleUtils.isSystemBundle(bundle)) {
  55                                 continue bundles;
  56                         }
  57
  58                         String location = originalLocation;
  59                         if (originalLocation.startsWith("reference:file:"))
  60                                 location = originalLocation.substring("reference:".length());
  61
  62                         if (frameworkBaseUrl != null
  63                                         && originalLocation.startsWith("initial@reference:file:")) {
  64                                 location = frameworkBaseUrl
  65                                                 + '/'
  66                                                 + originalLocation.substring("initial@reference:file:"
  67                                                                 .length());
  68                         }
  69
  70                         try {
  71                                 URL url = new URL(location);
  72                                 Resource res = resourceLoader.getResource(url.toString());
  73                                 distributions.put(osgiBundle,
  74                                                 new VersionedResourceDistribution(osgiBundle, res));
  75
  76                                 if (log.isTraceEnabled())
  77                                         log.debug("Added url " + url + " from original location "
  78                                                         + originalLocation);
  79                         } catch (Exception e) {
  80                                 log.warn("Cannot interpret location " + location
  81                                                 + " of bundle " + bundle + ": " + e);
  82                         }
  83                 }
  84         }
  85
  86         public void setResourceLoader(ResourceLoader resourceLoader) {
  87                 this.resourceLoader = resourceLoader;
  88         }
  89 }