/**
   * Build the table of plug-in dependencies. Iterate over all the plug-ins in the plug-in registry
   * and the cycle through the list of pre-requisites and create the parent/child relationships in
   * the nodes.
   */
  private Map getDependencyGraph() {
    if (dependencyGraph != null) return dependencyGraph;
    // Build up the dependency graph (see PluginDependencyGraphNode) so
    // we have the information readily available for any plug-in.
    State state = Platform.getPlatformAdmin().getState(false);
    BundleDescription[] plugins = state.getBundles();
    dependencyGraph = new HashMap();
    for (int i = 0; i < plugins.length; i++) {
      BundleDescription descriptor = plugins[i];
      PluginDependencyGraphNode node =
          (PluginDependencyGraphNode) dependencyGraph.get(new Long(descriptor.getBundleId()));
      if (node == null) {
        node = new PluginDependencyGraphNode(descriptor);
        dependencyGraph.put(new Long(descriptor.getBundleId()), node);
      }

      // Cycle through the prerequisites
      BundleSpecification[] requires = descriptor.getRequiredBundles();
      for (int j = 0; j < requires.length; j++) {
        BundleDescription childDesc = (BundleDescription) requires[j].getSupplier();
        // if the child doesn't exist then move to the next child
        if (childDesc == null) continue;

        // if the child entry is not in the table yet then add it
        PluginDependencyGraphNode childNode =
            (PluginDependencyGraphNode) dependencyGraph.get(new Long(childDesc.getBundleId()));
        if (childNode == null) {
          childNode = new PluginDependencyGraphNode(childDesc);
          dependencyGraph.put(new Long(childDesc.getBundleId()), childNode);
        }

        // Add the child to this node's children and set this node as an ancestor
        // of the child node
        node.addChild(childNode);
        childNode.addAncestor(node);
      }
    }
    return dependencyGraph;
  }
Ejemplo n.º 2
0
  /**
   * Diagnose loading of the bundle with the supplied name (ex. org.eclim.core).
   *
   * <p>Gleaned from org.eclipse.core.runtime.internal.adaptor.EclipseCommandProvider
   *
   * @param bundleName The bundle name to diagnose the loading of.
   * @return The diagnoses.
   */
  @SuppressWarnings({"unchecked", "rawtypes"})
  public String diagnose(String bundleName) {
    StringWriter out = new StringWriter();
    PrintWriter writer = new PrintWriter(out);

    BundleContext context = getDefault().getBundle().getBundleContext();
    ServiceReference platformAdminRef = context.getServiceReference(PlatformAdmin.class.getName());
    PlatformAdmin platformAdmin = (PlatformAdmin) context.getService(platformAdminRef);
    State state = platformAdmin.getState(false);

    BundleDescription bundle = null;
    BundleDescription[] allBundles = state.getBundles(bundleName);
    if (allBundles.length == 0) {
      writer.println(
          NLS.bind(EclipseAdaptorMsg.ECLIPSE_CONSOLE_CANNOT_FIND_BUNDLE_ERROR, bundleName));
    } else {
      bundle = allBundles[0];

      VersionConstraint[] unsatisfied =
          platformAdmin.getStateHelper().getUnsatisfiedConstraints(bundle);
      ResolverError[] resolverErrors = platformAdmin.getState(false).getResolverErrors(bundle);

      for (int i = 0; i < resolverErrors.length; i++) {
        if ((resolverErrors[i].getType()
                & (ResolverError.MISSING_FRAGMENT_HOST
                    | ResolverError.MISSING_GENERIC_CAPABILITY
                    | ResolverError.MISSING_IMPORT_PACKAGE
                    | ResolverError.MISSING_REQUIRE_BUNDLE))
            != 0) {
          continue;
        }
        writer.print("  ");
        writer.println(resolverErrors[i].toString());
      }

      if (unsatisfied.length == 0 && resolverErrors.length == 0) {
        writer.print("  ");
        writer.println(EclipseAdaptorMsg.ECLIPSE_CONSOLE_NO_CONSTRAINTS);
      }
      if (unsatisfied.length > 0) {
        writer.print("  ");
        writer.println(EclipseAdaptorMsg.ECLIPSE_CONSOLE_DIRECT_CONSTRAINTS);
      }
      for (int i = 0; i < unsatisfied.length; i++) {
        writer.print("    ");
        writer.println(MessageHelper.getResolutionFailureMessage(unsatisfied[i]));
      }

      VersionConstraint[] unsatisfiedLeaves =
          platformAdmin.getStateHelper().getUnsatisfiedLeaves(new BundleDescription[] {bundle});
      boolean foundLeaf = false;
      for (int i = 0; i < unsatisfiedLeaves.length; i++) {
        if (unsatisfiedLeaves[i].getBundle() == bundle) {
          continue;
        }
        if (!foundLeaf) {
          foundLeaf = true;
          writer.print("  ");
          writer.println(EclipseAdaptorMsg.ECLIPSE_CONSOLE_LEAF_CONSTRAINTS);
        }
        writer.print("    ");
        writer.println(
            unsatisfiedLeaves[i].getBundle().getLocation()
                + " ["
                + unsatisfiedLeaves[i].getBundle().getBundleId()
                + "]");
        writer.print("      ");
        writer.println(MessageHelper.getResolutionFailureMessage(unsatisfiedLeaves[i]));
      }
    }
    return out.toString();
  }