/**
   * Returns a set of properties for the project. The precedence is: quokka.properties
   * quokka.properties of inherited projects plugin.properties No expansion or ordering of
   * properties is done
   */
  public AnnotatedProperties getProperties() {
    AnnotatedProperties resolvedProperties = new AnnotatedProperties();

    // Add the global defaults
    resolvedProperties.put("quokka.project.targetDir", "${basedir}/target");
    resolvedProperties.put("quokka.project.sourceDir", "${basedir}/src");
    resolvedProperties.put("quokka.project.resourcesDir", "${basedir}/resources");

    // Add artifact related properties
    if (project.getArtifacts().size() > 0) {
      // Add properties common to all (group & version)
      RepoArtifactId artifactId =
          ((Artifact) getProject().getArtifacts().iterator().next()).getId();
      resolvedProperties.put("quokka.project.artifact.group", artifactId.getGroup());
      resolvedProperties.put("quokka.project.artifact.version", artifactId.getVersion().toString());

      // Build up a list of names by type
      Map namesByType = new HashMap();

      for (Iterator i = project.getArtifacts().iterator(); i.hasNext(); ) {
        Artifact artifact = (Artifact) i.next();
        artifactId = artifact.getId();

        List names = (List) namesByType.get(artifactId.getType());

        if (names == null) {
          names = new ArrayList();
          namesByType.put(artifactId.getType(), names);
        }

        names.add(artifactId.getName());
      }

      // Output the names
      for (Iterator i = namesByType.entrySet().iterator(); i.hasNext(); ) {
        Map.Entry entry = (Map.Entry) i.next();
        List names = (List) entry.getValue();
        resolvedProperties.put(
            "quokka.project.artifact.name[" + entry.getKey() + "]",
            Strings.join(names.iterator(), ","));
      }
    }

    // Put the plugin properties in first. Order is not important as plugin properties should be
    // unique to their plugin
    for (Iterator i = resolvedTargets.values().iterator(); i.hasNext(); ) {
      Target target = (Target) i.next();
      AnnotatedProperties targetProperties = target.getDefaultProperties();
      resolvedProperties.putAll(
          applyProfiles(targetProperties, project.getActiveProfiles().getElements()));
    }

    // Put in any properties defined in dependency sets (processed in reverse to ensure high levels
    // override low levels)
    resolveProperties(resolvedProperties, project.getDependencySet());

    resolvedProperties.putAll(
        applyProfiles(project.getProperties(), project.getActiveProfiles().getElements()));

    // Put the project paths as properties
    for (Iterator i = resolvedPaths.entrySet().iterator(); i.hasNext(); ) {
      Map.Entry entry = (Map.Entry) i.next();
      resolvedProperties.put(
          "quokka.project.path." + entry.getKey(),
          toAntPath(getProjectPath((String) entry.getKey(), false, true)).toString());
    }

    return resolvedProperties;
  }
  private void addTarget(Map resolved, Target target) {
    //        System.out.println("Adding " + target.getName() + " from " + parents);
    if (target.getPrefix() != null) {
      target.setDefaultProperties(expandPrefix(target.getPrefix(), target.getDefaultProperties()));
    }

    Target existing = (Target) resolved.get(target.getName());

    if (existing != null) {
      RepoArtifactId targetId = target.getPlugin().getArtifact().getId();
      RepoArtifactId existingId = existing.getPlugin().getArtifact().getId();
      Assert.isTrue(
          targetId.equals(existingId),
          target.getLocator(),
          "Multiple targets are defined with the name '"
              + target.getName()
              + "'. Declared in "
              + targetId
              + " and "
              + existingId);

      return;
    }

    resolved.put(target.getName(), target);
    registerTypes(target);
    registerProjectPaths(target);
    buildResources.putAll(target.getPlugin().getBuildResources());

    // PluginDependency declares the target
    addDependentTargets(resolved, target);

    if (target.getImplementsPlugin() != null) {
      // PluginDependency implements the target declared in another plugin
      String[] implementsPlugin = parseImplements(target);
      RepoArtifactId declaringPluginId =
          fastFindMatchingDependency(
              target,
              new RepoArtifactId(
                  implementsPlugin[0], implementsPlugin[1], "plugin", (Version) null));

      Plugin declaringPlugin = getPluginInstance(declaringPluginId);
      String declaringTargetName = declaringPlugin.getNameSpace() + ":" + implementsPlugin[2];

      // Get the declaring plugin and find the matching target
      Target declaringTarget = (Target) resolved.get(declaringTargetName);

      if (declaringTarget == null) {
        declaringTarget = declaringPlugin.getTarget(declaringTargetName);
        Assert.isTrue(
            declaringTarget != null,
            target.getLocator(),
            "'"
                + declaringTargetName
                + "' is not defined in '"
                + declaringPluginId.toShortString()
                + "'");
        addTarget(resolved, declaringTarget);
      }

      Assert.isTrue(
          declaringTarget.isAbstract(),
          target.getLocator(),
          "Target is attempting to implement a non-abstract target: target="
              + target.getName()
              + ", implements="
              + declaringTarget.getName());
      target.getPlugin().setDeclaringPlugin(declaringTarget.getPlugin());

      if (!declaringTarget.isImplemented()) {
        declaringTarget.setImplemented(true);
        declaringTarget.clearDependencies();
      }

      declaringTarget.addDependency(target.getName());

      // Add the declaring targets dependencies to ensure the implementation is executed before them
      for (Iterator i = declaringTarget.getOriginalDependencies().iterator(); i.hasNext(); ) {
        String dependency = (String) i.next();
        target.addDependency(dependency);
      }
    }
  }