/**
   * Draws the GUI that allows a user to select assets to be updated.
   *
   * @return true if the user made a valid choice of assets to replace.
   * @throws PipelineException
   */
  private boolean buildUpdateGUI() throws PipelineException {
    Box finalBox = new Box(BoxLayout.Y_AXIS);
    top = new Box(BoxLayout.Y_AXIS);

    JScrollPane scroll;

    {
      scroll = new JScrollPane(finalBox);

      scroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
      scroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

      Dimension size = new Dimension(sVSize + sVSize + sTSize + 52, 500);
      scroll.setMinimumSize(size);
      scroll.setPreferredSize(size);
      scroll.getViewport().setScrollMode(JViewport.BACKINGSTORE_SCROLL_MODE);
    }

    /* query the user */
    diag = new JToolDialog("Propagate Asset", scroll, "Continue");

    areas = mclient.getWorkingAreas();
    {
      Box hbox = new Box(BoxLayout.X_AXIS);
      Component comps[] = UIFactory.createTitledPanels();
      JPanel tpanel = (JPanel) comps[0];
      JPanel vpanel = (JPanel) comps[1];
      {
        userField =
            UIFactory.createTitledCollectionField(
                tpanel,
                "User:"******"The user whose area the node is being created in.");
        userField.setActionCommand("user");
        userField.setSelected(PackageInfo.sUser);
        userField.addActionListener(this);
      }
      UIFactory.addVerticalSpacer(tpanel, vpanel, 3);
      {
        viewField =
            UIFactory.createTitledCollectionField(
                tpanel,
                "View:",
                sTSize,
                vpanel,
                areas.get(PackageInfo.sUser),
                diag,
                sVSize,
                "The working area to create the nodes in.");
        viewField.setActionCommand("wrap");
        viewField.addActionListener(this);
      }
      UIFactory.addVerticalSpacer(tpanel, vpanel, 3);
      {
        toolsetField =
            UIFactory.createTitledCollectionField(
                tpanel,
                "Toolset:",
                sTSize,
                vpanel,
                mclient.getActiveToolsetNames(),
                diag,
                sVSize,
                "The toolset to set on all the nodes.");
        toolsetField.setSelected(mclient.getDefaultToolsetName());
        toolsetField.setActionCommand("wrap");
        toolsetField.addActionListener(this);
      }
      UIFactory.addVerticalSpacer(tpanel, vpanel, 3);

      w =
          new Wrapper(
              userField.getSelected(),
              viewField.getSelected(),
              toolsetField.getSelected(),
              mclient);

      charList = SonyConstants.getAssetList(w, project, AssetType.CHARACTER);
      setsList = SonyConstants.getAssetList(w, project, AssetType.SET);
      propsList = SonyConstants.getAssetList(w, project, AssetType.PROP);

      {
        projectField =
            UIFactory.createTitledCollectionField(
                tpanel,
                "Project:",
                sTSize,
                vpanel,
                Globals.getChildrenDirs(w, "/projects"),
                diag,
                sVSize,
                "All the projects in pipeline.");
        projectField.setActionCommand("proj");
        projectField.addActionListener(this);
      }
      hbox.add(comps[2]);
      top.add(hbox);
    }

    {
      Box vbox = new Box(BoxLayout.Y_AXIS);
      Box hbox = new Box(BoxLayout.X_AXIS);
      JButton button = new JButton("Propagate Additional Asset");
      button.setName("ValuePanelButton");
      button.setRolloverEnabled(false);
      button.setFocusable(false);
      Dimension d = new Dimension(sVSize, 25);
      button.setPreferredSize(d);
      button.setMinimumSize(d);
      button.setMaximumSize(new Dimension(Integer.MAX_VALUE, 25));

      vbox.add(Box.createRigidArea(new Dimension(0, 5)));
      hbox.add(button);
      hbox.add(Box.createRigidArea(new Dimension(4, 0)));
      vbox.add(hbox);
      vbox.add(Box.createRigidArea(new Dimension(0, 5)));

      button.setActionCommand("add");
      button.addActionListener(this);

      top.add(vbox);
    }

    list = new Box(BoxLayout.Y_AXIS);
    test = new JDrawer("Propagate Additional Asset", list, false);

    top.add(test);
    list.add(assetChoiceBox());

    finalBox.add(top);

    {
      JPanel spanel = new JPanel();
      spanel.setName("Spacer");
      spanel.setMinimumSize(new Dimension(sTSize + sVSize, 7));
      spanel.setMaximumSize(new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE));
      spanel.setPreferredSize(new Dimension(sTSize + sVSize, 7));
      finalBox.add(spanel);
    }

    diag.setVisible(true);
    if (diag.wasConfirmed()) {
      // get list of things to change.
      for (Component comp : list.getComponents()) {
        if (comp instanceof Box) {
          Box can = (Box) comp;
          JCollectionField oldOne = (JCollectionField) can.getComponent(2);
          JCollectionField newOne = (JCollectionField) can.getComponent(4);

          TreeMap<String, String> assetList = new TreeMap<String, String>();
          assetList.putAll(charList);
          assetList.putAll(propsList);
          assetList.putAll(setsList);

          String key = assetList.get(oldOne.getSelected()) + lr;
          String value = assetList.get(newOne.getSelected()) + lr;
          if (!key.equals(value)) {
            potentialUpdates.add(key);
            pAssetManager.put(key, new AssetInfo(key, value));
          }
          // System.err.println("bUG: "+pAssetManager.get(key).getHiLoResShots());
        }
      }

      if (!pAssetManager.isEmpty()) return true;
    }
    return false;
  } // end buildReplacementGUI
  /**
   * Using a list of shots and the assets to be changed per shot, gets each shot node and modifies
   * the references as needed.
   */
  private void processNodes() throws PipelineException {
    /*each asset, its replacement and the lo-res versions*/
    for (String asset : pAssetManager.keySet()) {
      String newAsset = pAssetManager.get(asset).getNewAsset();
      String hrAsset = asset.replace(lr, "");
      String newHrAsset = newAsset.replace(lr, "");
      logLine(
          "Checking out nodes:\n\t"
              + asset
              + "\n\t"
              + hrAsset
              + "\n\t"
              + newAsset
              + "\n\t"
              + newHrAsset);

      mclient.checkOut(w.user, w.view, asset, null, over, froz);
      mclient.checkOut(w.user, w.view, newAsset, null, over, froz);
      mclient.checkOut(w.user, w.view, hrAsset, null, over, froz);
      mclient.checkOut(w.user, w.view, newHrAsset, null, over, froz);
    } // end for

    TreeMap<String, TreeSet<String>> shotBased = convertListToShotBased();
    TreeMap<String, String> nameMap = SonyConstants.getCustomNamespaces(project);
    TreeSet<String> oldRef = new TreeSet<String>();
    TreeSet<String> newRef = new TreeSet<String>();

    for (String shot : shotBased.keySet()) {
      // check out the shot

      if (shot.endsWith("anim")) mclient.checkOut(w.user, w.view, shot, null, keep, frozU);
      else {
        continue;
        // mclient.checkOut(w.user, w.view, shot, null, keep, pFroz);
      }
      logLine("Checking out: " + shot);

      NodeMod targetMod = mclient.getWorkingVersion(w.user, w.view, shot);
      if (!shot.matches(lgtPattern)) {

        if (targetMod.isActionEnabled()) {
          System.err.println("Anim node with action enabled");
          FileSeq fseq = targetMod.getPrimarySequence();
          VersionID targetID = targetMod.getWorkingID();
          TreeMap<String, VersionID> files = new TreeMap<String, VersionID>();
          files.put(fseq.getFile(0).getPath(), targetID);
          mclient.revertFiles(w.user, w.view, shot, files);
          targetMod.setActionEnabled(false);
        }

        w.mclient.modifyProperties(w.user, w.view, targetMod);
      }

      /*--checking the shot to be modified---*/

      for (String assetToReplace : shotBased.get(shot)) {
        if (assetToReplace.endsWith(lr)) {
          AssetInfo temp = pAssetManager.get(assetToReplace);
          oldRef.add(assetToReplace);
          newRef.add(temp.getNewAsset());
        } else {
          String hiRes = assetToReplace.replace(lr, "");
          AssetInfo temp = pAssetManager.get(hiRes);
          if (temp == null) continue;
          oldRef.add(assetToReplace);
          newRef.add(temp.getNewAsset() + lr);
        } // end else
      } // end for

      if (oldRef.isEmpty() || newRef.isEmpty()) {
        logLine("Shot " + shot + " somehow does not need any changes.");
        continue;
      } // end if

      editShotReferences(shot, targetMod, oldRef, newRef, nameMap);
    } // end for

    /*for(String shot: shotBased.keySet()){
    	//TODO: Check in nodes
    	String msg = "Checked in with UpdateAssetGUI. Removed:\n\t";
    	for(String asset: oldRef)
    		msg+= (asset + " ");

    	msg+="\nAdded:\n\t";
    	for(String asset: newRef)
    		msg+= (asset + " ");

    	mclient.checkIn(w.user, w.view,shot, msg, VersionID.Level.Major);
    }*/

  } // end processShots