swt/rap/org.argeo.cms.swt.rap/src/org/argeo/cms/web/BundleResourceLoader.java

   1 package org.argeo.cms.web;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.net.URL;
   6
   7 import org.eclipse.rap.rwt.service.ResourceLoader;
   8 import org.osgi.framework.Bundle;
   9
  10 /** {@link ResourceLoader} implementation wrapping an {@link Bundle}. */
  11 public class BundleResourceLoader implements ResourceLoader {
  12         private final Bundle bundle;
  13
  14         public BundleResourceLoader(Bundle bundle) {
  15                 this.bundle = bundle;
  16         }
  17
  18         @Override
  19         public InputStream getResourceAsStream(String resourceName) throws IOException {
  20                 URL res = bundle.getEntry(resourceName);
  21                 if (res == null) {
  22                         res = bundle.getResource(resourceName);
  23                         if (res == null)
  24                                 throw new IllegalArgumentException(
  25                                                 "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 }