private void replaceLibraries()

in maven2-plugins/myfaces-jdev-plugin/src/main/java/org/apache/myfaces/buildtools/maven2/plugin/jdeveloper/JDeveloperMojo.java [749:916]
98 lines of code
11 McCabe index (conditional complexity)

  private void replaceLibraries(File projectDir, List artifacts,
                                Xpp3Dom projectDOM)
    throws XmlPullParserException
  {
    // /jpr:project
    //   /hash[@n="oracle.jdevimpl.config.JProjectLibraries"]
    //     /hash[@n="internalDefinitions"]
    //       /list[@n="libraryDefinitions"]
    Xpp3Dom projectLibsDOM =
      findNamedChild(projectDOM, "hash", "oracle.jdevimpl.config.JProjectLibraries");
    Xpp3Dom internalDefsDOM =
      findNamedChild(projectLibsDOM, "hash", "internalDefinitions");
    Xpp3Dom sourceDefsDOM =
      findNamedChild(internalDefsDOM, "list", "libraryDefinitions");

    // /jpr:project
    //   /hash[@n="oracle.jdevimpl.config.JProjectLibraries"]
    //     /list[@n="libraryReferences"]
    Xpp3Dom sourceRefsDOM =
      findNamedChild(projectLibsDOM, "list", "libraryReferences");

    Xpp3Dom targetDefsDOM = new Xpp3Dom("list");
    Xpp3Dom targetRefsDOM = new Xpp3Dom("list");

    //
    // libraryDefinitions
    //
    // <hash>
    //   <list n="classPath">
    //     <url path="[path-to-artifact]" jar-entry="" />
    //   </list>
    //   <value n="deployedByDefault" v="true"/>
    //   <value n="description" v="[artifact.id]"/>
    //   <value n="id" v="[artifact.id]"/>
    // </hash>
    //

    // sort the artifacts
    Collections.sort(artifacts, new Comparator()
        {
          public int compare(Object a, Object b)
          {
            Artifact arta = (Artifact) a;
            Artifact artb = (Artifact) b;
            return arta.getId().compareTo(artb.getId());
          }

        });

    List libraryRefs = new LinkedList();
    for (Iterator i = artifacts.iterator(); i.hasNext(); )
    {
      Artifact artifact = (Artifact) i.next();

      if (!isDependentProject(artifact.getDependencyConflictId()))
      {
        String id = artifact.getId();
        String path = getRelativeFile(projectDir, artifact.getFile());

        // libraryDefinitions entry
        Xpp3Dom hashDOM = new Xpp3Dom("hash");
        Xpp3Dom listDOM = new Xpp3Dom("list");
        listDOM.setAttribute("n", "classPath");

        Xpp3Dom urlDOM = new Xpp3Dom("url");
        urlDOM.setAttribute("path", path);
        urlDOM.setAttribute("jar-entry", "");
        listDOM.addChild(urlDOM);
        hashDOM.addChild(listDOM);

        Xpp3Dom valueDOM = new Xpp3Dom("value");
        valueDOM.setAttribute("n", "deployedByDefault");
        valueDOM.setAttribute("v", "true");
        hashDOM.addChild(valueDOM);

        valueDOM = new Xpp3Dom("value");
        valueDOM.setAttribute("n", "description");
        valueDOM.setAttribute("v", id);
        hashDOM.addChild(valueDOM);

        valueDOM = new Xpp3Dom("value");
        valueDOM.setAttribute("n", "id");
        valueDOM.setAttribute("v", id);
        hashDOM.addChild(valueDOM);
        targetDefsDOM.addChild(hashDOM);

        libraryRefs.add(id);
      }
    }

    // This boolean is set by specifying the jdev.plugin.add.libraries
    // property at the top of a project's pom file.  There are projects
    // that don't need these libraries in their .jpr files to compile and this
    // property allows them to be excluded.
    //
    // IMPORTANT NOTE: if this property is set in a project,
    // then libraries will NOT be added, even though they
    // may be specified under the maven-jdev-plugin.
    if (_addLibraries)
    {
      // Add libraries.  The default libraries can be
      // overridden in the trunk/toplevel pom file.
      if (_releaseMajor >= 11)
      {
        // Add the default libraries
        libraryRefs.add(0,"JSF 1.2");
        libraryRefs.add(0,"JSP Runtime");
      }

      // Add the libraries
      if (libraries != null)
      {
        for (int i = 0; i < libraries.length; i++)
        {
          // Default libraries for release 11 were already
          // added above.
          if (   (_releaseMajor >= 11)
              && (   ("JSF 1.2".equalsIgnoreCase(libraries[i]))
                  || ("JSP Runtime".equalsIgnoreCase(libraries[i]))
                 )
             )
          {
            continue;
          }
          // Add the library
          libraryRefs.add(0, libraries[i]);
        }
      }
    }

    //
    // libraryReferences
    //
    // <hash>
    //   <value n="id" v="[artifact.id]"/>
    //   <value n="isJDK" v="false"/>
    // </hash>
    //
    Collections.sort(libraryRefs);

    for (Iterator i = libraryRefs.iterator(); i.hasNext(); )
    {
      String id = (String) i.next();

      // libraryReferences entry
      Xpp3Dom hashDOM = new Xpp3Dom("hash");
      Xpp3Dom valueDOM = new Xpp3Dom("value");
      valueDOM.setAttribute("n", "id");
      valueDOM.setAttribute("v", id);
      hashDOM.addChild(valueDOM);

      valueDOM = new Xpp3Dom("value");
      valueDOM.setAttribute("n", "isJDK");
      valueDOM.setAttribute("v", "false");
      hashDOM.addChild(valueDOM);
      targetRefsDOM.addChild(hashDOM);
    }

    // First, add JSP Runtime dependency if src/main/webapp exists
    // TODO: use a better merge algorithm
    removeChildren(sourceDefsDOM);
    removeChildren(sourceRefsDOM);

    // make sure to pass Boolean.FALSE to allow
    // multiple child elements with the same name
    Xpp3Dom.mergeXpp3Dom(sourceDefsDOM, targetDefsDOM, Boolean.FALSE);
    Xpp3Dom.mergeXpp3Dom(sourceRefsDOM, targetRefsDOM, Boolean.FALSE);
  }