runtime/org.argeo.slc.support.osgi/src/main/java/org/argeo/slc/osgi/build/OsgiRuntimeModularDistribution.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.osgi.build;
  18
  19 import java.net.URL;
  20 import java.util.SortedMap;
  21
  22 import org.apache.commons.logging.Log;
  23 import org.apache.commons.logging.LogFactory;
  24 import org.argeo.slc.NameVersion;
  25 import org.argeo.slc.build.Distribution;
  26 import org.argeo.slc.core.build.VersionedResourceDistribution;
  27 import org.argeo.slc.osgi.OsgiBundle;
  28 import org.osgi.framework.Bundle;
  29 import org.springframework.context.ResourceLoaderAware;
  30 import org.springframework.core.io.Resource;
  31 import org.springframework.core.io.ResourceLoader;
  32 import org.springframework.osgi.util.OsgiBundleUtils;
  33
  34 public class OsgiRuntimeModularDistribution extends
  35                 AbstractOsgiModularDistribution implements ResourceLoaderAware {
  36         private final static Log log = LogFactory
  37                         .getLog(OsgiRuntimeModularDistribution.class);
  38
  39         private ResourceLoader resourceLoader;
  40
  41         protected void fillDistributions(
  42                         SortedMap<NameVersion, Distribution> distributions)
  43                         throws Exception {
  44
  45                 String frameworkUrl = System.getProperty("osgi.framework");
  46                 String frameworkBaseUrl = null;
  47                 if (frameworkUrl != null)
  48                         frameworkBaseUrl = frameworkUrl.substring(0, frameworkUrl
  49                                         .lastIndexOf('/'));
  50                 bundles: for (Bundle bundle : getBundleContext().getBundles()) {
  51                         OsgiBundle osgiBundle = new OsgiBundle(bundle);
  52
  53                         String originalLocation = bundle.getLocation();
  54
  55                         if (OsgiBundleUtils.isSystemBundle(bundle)) {
  56                                 continue bundles;
  57                         }
  58
  59                         String location = originalLocation;
  60                         if (originalLocation.startsWith("reference:file:"))
  61                                 location = originalLocation.substring("reference:".length());
  62
  63                         if (frameworkBaseUrl != null
  64                                         && originalLocation.startsWith("initial@reference:file:")) {
  65                                 location = frameworkBaseUrl
  66                                                 + '/'
  67                                                 + originalLocation.substring("initial@reference:file:"
  68                                                                 .length());
  69                         }
  70
  71                         try {
  72                                 URL url = new URL(location);
  73                                 Resource res = resourceLoader.getResource(url.toString());
  74                                 distributions.put(osgiBundle,
  75                                                 new VersionedResourceDistribution(osgiBundle, res));
  76
  77                                 if (log.isTraceEnabled())
  78                                         log.debug("Added url " + url + " from original location "
  79                                                         + originalLocation);
  80                         } catch (Exception e) {
  81                                 log.warn("Cannot interpret location " + location
  82                                                 + " of bundle " + bundle + ": " + e);
  83                         }
  84                 }
  85         }
  86
  87         public void setResourceLoader(ResourceLoader resourceLoader) {
  88                 this.resourceLoader = resourceLoader;
  89         }
  90 }