org.argeo.cms.ui/src/org/argeo/cms/util/BundleResourceLoader.java

   1 package org.argeo.cms.util;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.net.URL;
   6
   7 import org.argeo.cms.CmsException;
   8 import org.eclipse.rap.rwt.service.ResourceLoader;
   9 import org.osgi.framework.Bundle;
  10
  11 /** {@link ResourceLoader} implementation wrapping an {@link Bundle}. */
  12 public class BundleResourceLoader implements ResourceLoader {
  13         private final Bundle bundle;
  14
  15         public BundleResourceLoader(Bundle bundle) {
  16                 this.bundle = bundle;
  17         }
  18
  19         @Override
  20         public InputStream getResourceAsStream(String resourceName) throws IOException {
  21                 URL res = bundle.getEntry(resourceName);
  22                 if (res == null) {
  23                         res = bundle.getResource(resourceName);
  24                         if (res == null)
  25                                 throw new CmsException("Resource " + resourceName + " not found in bundle " + bundle.getSymbolicName());
  26                 }
  27                 return res.openStream();
  28         }
  29
  30         public Bundle getBundle() {
  31                 return bundle;
  32         }
  33
  34 }