private void validateUnpack(Element parent) {
    int severity = CompilerFlags.getFlag(fProject, CompilerFlags.F_UNRESOLVED_PLUGINS);
    if (severity == CompilerFlags.IGNORE) {
      return;
    }
    if (severity == CompilerFlags.ERROR) {
      // this might not be an error, so max the flag at WARNING level.
      severity = CompilerFlags.WARNING;
    }
    String unpack = parent.getAttribute("unpack"); // $NON-NLS-1$
    IPluginModelBase pModel = PluginRegistry.findModel(parent.getAttribute("id")); // $NON-NLS-1$
    if (pModel == null) {
      return;
    }

    if (pModel instanceof IBundlePluginModel) {
      IBundlePluginModel bModel = (IBundlePluginModel) pModel;
      IManifestHeader header =
          bModel
              .getBundleModel()
              .getBundle()
              .getManifestHeader(ICoreConstants.ECLIPSE_BUNDLE_SHAPE);
      if (header != null) {
        String value = header.getValue();
        String unpackValue =
            "true".equals(unpack) ? "jar" : "dir"; // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        if (value != null && !value.equalsIgnoreCase(unpackValue)) {
          String message =
              NLS.bind(
                  PDECoreMessages.Builders_Feature_mismatchUnpackBundleShape,
                  (new String[] {
                    "unpack=" + unpack, parent.getAttribute("id"), "Eclipse-BundleShape: " + value
                  })); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
          report(message, getLine(parent), severity, PDEMarkerFactory.CAT_OTHER);
        }
      }
    }

    if ("true".equals(unpack)
        && !CoreUtility.guessUnpack(pModel.getBundleDescription())) { // $NON-NLS-1$
      String message =
          NLS.bind(
              PDECoreMessages.Builders_Feature_missingUnpackFalse,
              (new String[] {
                parent.getAttribute("id"), "unpack=\"false\""
              })); //$NON-NLS-1$ //$NON-NLS-2$
      report(message, getLine(parent), severity, PDEMarkerFactory.CAT_OTHER);
    }
  }
 private void validatePluginID(Element element, Attr attr, boolean isFragment) {
   String id = attr.getValue();
   if (!validatePluginID(element, attr)) {
     return;
   }
   int severity = CompilerFlags.getFlag(fProject, CompilerFlags.F_UNRESOLVED_PLUGINS);
   if (severity != CompilerFlags.IGNORE) {
     IPluginModelBase model = PluginRegistry.findModel(id);
     if (model == null
         || !model.isEnabled()
         || (isFragment && !model.isFragmentModel())
         || (!isFragment && model.isFragmentModel())) {
       report(
           NLS.bind(PDECoreMessages.Builders_Feature_reference, id),
           getLine(element, attr.getName()),
           severity,
           PDEMarkerFactory.CAT_OTHER);
     }
   }
 }