Examples of org.osgi.framework.Bundle.adapt()

org.osgi.framework.Bundle.adapt()
Adapt this bundle to the specified type.
Adapting this bundle to the specified type may require certain checks, including security checks, to succeed. If a check does not succeed, then this bundle cannot be adapted and {@code null} is returned. @param < A> The type to which this bundle is to be adapted. @param type Class object for the type to which this bundle is to beadapted. @return The object, of the specified type, to which this bundle has beenadapted or {@code null} if this bundle cannot be adapted to thespecified type. @throws SecurityException If the caller does not have the appropriate{@code AdaptPermission[type,this,ADAPT]}, and the Java Runtime Environment supports permissions. @since 1.6

  }


  @Override
  public List<String> getImports(long bundleId) {
    Bundle bundle = bundleContext.getBundle(bundleId);
        BundleRevision rev = bundle.adapt(BundleRevision.class);
        List<BundleRequirement> reqs = rev.getDeclaredRequirements(BundleRevision.PACKAGE_NAMESPACE);
        List<String> imports = new ArrayList<String>();
        for (BundleRequirement req : reqs) {
            Map<String, String> attr = req.getDirectives();
            String filter = attr.get("filter");

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            LOGGER.debug("Installing bundle " + bundleLocation);
            Bundle b = bundleContext.installBundle(bundleLocation, is);


            if (startLevel > 0) {
                b.adapt(BundleStartLevel.class).setStartLevel(startLevel);
            }


            return new BundleInstallerResult(b, true);
        } finally {
            is.close();

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                        try {
                            // TODO: Workaround for PAXURL-278
                            String[] parts = location.contains("pax-url-aether") ? convertToMavenUrlsIfNeeded(location, false) 
                                :  convertToMavenUrlsIfNeeded(location, convertToMavenUrls);
                            Bundle b = context.installBundle(parts[0], new URL(parts[1]).openStream());
                            b.adapt(BundleStartLevel.class).setStartLevel(startLevel);
                            bundles.add(b);
                        }
                        catch (Exception ex) {
                            System.err.println("Error installing bundle  " + location + ": " + ex);
                        }

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        expect(bundleContext.getDataFile(EasyMock.<String>anyObject())).andReturn(dataFile).anyTimes();


        // refresh
        expect(bundleContext.getBundle(0)).andStubReturn(sysBundle);
        expect(sysBundle.adapt(FrameworkWiring.class)).andStubReturn(frameworkWiring);


        final Capture<FrameworkListener> listeners =  new Capture<FrameworkListener>();
        frameworkWiring.refreshBundles(EasyMock.<Collection<Bundle>>eq(null), capture(listeners));
        expectLastCall().andStubAnswer(new IAnswer<Object>() {
            public Object answer() throws Throwable {

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        properties.save();
    }


    public void setStartLevel(int startLevel) {
        Bundle b = getBundleContext().getBundle(0);
        FrameworkStartLevel fsl = (FrameworkStartLevel) b.adapt(FrameworkStartLevel.class);
        fsl.setStartLevel(startLevel, null);
    }


    public int getStartLevel() {
        Bundle b = getBundleContext().getBundle(0);

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        fsl.setStartLevel(startLevel, null);
    }


    public int getStartLevel() {
        Bundle b = getBundleContext().getBundle(0);
        FrameworkStartLevel fsl = (FrameworkStartLevel) b.adapt(FrameworkStartLevel.class);
        return fsl.getStartLevel();
    }


    /* for backward compatibility */

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      LOGGER.debug("Installing bundle " + bundleLocation);
      Bundle b = bundleContext.installBundle(bundleLocation, is);


      if (startLevel > 0) {
        b.adapt(BundleStartLevel.class).setStartLevel(startLevel);
      }


      return new BundleInstallerResult(b, true);
    } finally {
      is.close();

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    }


    try {
      // 刷新Bundle
      Bundle systemBundle = bundleContext.getBundle(0);
      FrameworkWiring frameworkWiring = systemBundle
          .adapt(FrameworkWiring.class);


      for (Bundle bundle : frameworkWiring.getRemovalPendingBundles()) {
        log.debug("RemovalPendingBundle:" + bundle.getSymbolicName());
      }

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    }


    try {
      // 刷新Bundle
      Bundle systemBundle = bundleContext.getBundle(0);
      FrameworkWiring frameworkWiring = systemBundle
          .adapt(FrameworkWiring.class);


      for (Bundle bundle : frameworkWiring.getRemovalPendingBundles()) {
        logger.config("RemovalPendingBundle:"
            + bundle.getSymbolicName());

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    /* (non-Javadoc)
     * @see org.osgi.jmx.framework.BundleRevisionsStateMBean#getCurrentRevisionDeclaredRequirements(long, java.lang.String)
     */
    public CompositeData[] getCurrentRevisionDeclaredRequirements(long bundleId, String namespace) throws IOException {
        Bundle bundle = FrameworkUtils.resolveBundle(bundleContext, bundleId);
        BundleRevision revision = bundle.adapt(BundleRevision.class);


        return BundleWiringData.getRequirementsCompositeData(revision.getDeclaredRequirements(namespace));
    }


    /* (non-Javadoc)

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