configurationmanager.java

java日志读写

      NamedNodeMap map = n.getAttributes();
      String name = getValue(map, NAME);
      try {
        LogLevel level = LogLevel.valueOf(name);
        int red = Integer.parseInt(getValue(map, RED));
        int green = Integer.parseInt(getValue(map, GREEN));
        int blue = Integer.parseInt(getValue(map, BLUE));
        Color c = new Color(red, green, blue);
        if (level != null) {
          level.setLogLevelColorMap(level, c);
        }

      } catch (LogLevelFormatException e) {
        // ignore it will be on by default.
      }
    }
  }

  protected void processLogTableColumns(Document doc) {
    NodeList nodeList = doc.getElementsByTagName(COLUMN);
    Map menuItems = _monitor.getLogTableColumnMenuItems();
    List selectedColumns = new ArrayList();
    for (int i = 0; i < nodeList.getLength(); i++) {
      Node n = nodeList.item(i);
      // check for backwards compatibility since this feature was added
      // in version 1.3
      if (n == null) {
        return;
      }
      NamedNodeMap map = n.getAttributes();
      String name = getValue(map, NAME);
      try {
        LogTableColumn column = LogTableColumn.valueOf(name);
        JCheckBoxMenuItem item =
            (JCheckBoxMenuItem) menuItems.get(column);
        item.setSelected(getValue(map, SELECTED).equalsIgnoreCase("true"));

        if (item.isSelected()) {
          selectedColumns.add(column);
        }
      } catch (LogTableColumnFormatException e) {
        // ignore it will be on by default.
      }

      if (selectedColumns.isEmpty()) {
        _table.setDetailedView();
      } else {
        _table.setView(selectedColumns);
      }

    }
  }

  protected String getValue(NamedNodeMap map, String attr) {
    Node n = map.getNamedItem(attr);
    return n.getNodeValue();
  }

  protected void collapseTree() {
    // collapse everything except the first category
    CategoryExplorerTree tree = _monitor.getCategoryExplorerTree();
    for (int i = tree.getRowCount() - 1; i > 0; i--) {
      tree.collapseRow(i);
    }
  }

  protected void selectAllNodes() {
    CategoryExplorerModel model = _monitor.getCategoryExplorerTree().getExplorerModel();
    CategoryNode root = model.getRootCategoryNode();
    Enumeration all = root.breadthFirstEnumeration();
    CategoryNode n = null;
    while (all.hasMoreElements()) {
      n = (CategoryNode) all.nextElement();
      n.setSelected(true);
    }
  }

  protected void store(String s) {

    try {
      PrintWriter writer = new PrintWriter(new FileWriter(getFilename()));
      writer.print(s);
      writer.close();
    } catch (IOException e) {
      // do something with this error.
      e.printStackTrace();
    }

  }

  protected void deleteConfigurationFile() {
    try {
      File f = new File(getFilename());
      if (f.exists()) {
        f.delete();
      }
    } catch (SecurityException e) {
      System.err.println("Cannot delete " + getFilename() +
          " because a security violation occured.");
    }
  }

  protected String getFilename() {
    String home = System.getProperty("user.home");
    String sep = System.getProperty("file.separator");

    return home + sep + "lf5" + sep + CONFIG_FILE_NAME;
  }

  //--------------------------------------------------------------------------
  //   Private Methods:
  //--------------------------------------------------------------------------
  private void processConfigurationNode(CategoryNode node, StringBuffer xml) {
    CategoryExplorerModel model = _monitor.getCategoryExplorerTree().getExplorerModel();

    Enumeration all = node.breadthFirstEnumeration();
    CategoryNode n = null;
    while (all.hasMoreElements()) {
      n = (CategoryNode) all.nextElement();
      exportXMLElement(n, model.getTreePathToRoot(n), xml);
    }

  }

  private void processLogLevels(Map logLevelMenuItems, StringBuffer xml) {
    xml.append("\t<loglevels>\r\n");
    Iterator it = logLevelMenuItems.keySet().iterator();
    while (it.hasNext()) {
      LogLevel level = (LogLevel) it.next();
      JCheckBoxMenuItem item = (JCheckBoxMenuItem) logLevelMenuItems.get(level);
      exportLogLevelXMLElement(level.getLabel(), item.isSelected(), xml);
    }

    xml.append("\t</loglevels>\r\n");
  }

  private void processLogLevelColors(Map logLevelMenuItems, Map logLevelColors, StringBuffer xml) {
    xml.append("\t<loglevelcolors>\r\n");
    // iterate through the list of log levels being used (log4j, jdk1.4, custom levels)
    Iterator it = logLevelMenuItems.keySet().iterator();
    while (it.hasNext()) {
      LogLevel level = (LogLevel) it.next();
      // for each level, get the associated color from the log level color map
      Color color = (Color) logLevelColors.get(level);
      exportLogLevelColorXMLElement(level.getLabel(), color, xml);
    }

    xml.append("\t</loglevelcolors>\r\n");
  }


  private void processLogTableColumns(List logTableColumnMenuItems, StringBuffer xml) {
    xml.append("\t<logtablecolumns>\r\n");
    Iterator it = logTableColumnMenuItems.iterator();
    while (it.hasNext()) {
      LogTableColumn column = (LogTableColumn) it.next();
      JCheckBoxMenuItem item = _monitor.getTableColumnMenuItem(column);
      exportLogTableColumnXMLElement(column.getLabel(), item.isSelected(), xml);
    }

    xml.append("\t</logtablecolumns>\r\n");
  }

  // Added in version 1.2 - stores the NDC text filter in the xml file
  // for future use.
  private void processLogRecordFilter(String text, StringBuffer xml) {
    xml.append("\t<").append(NDCTEXTFILTER).append(" ");
    xml.append(NAME).append("=\"").append(text).append("\"");
    xml.append("/>\r\n");
  }

  private void openXMLDocument(StringBuffer xml) {
    xml.append("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\r\n");
  }

  private void openConfigurationXML(StringBuffer xml) {
    xml.append("<configuration>\r\n");
  }

  private void closeConfigurationXML(StringBuffer xml) {
    xml.append("</configuration>\r\n");
  }

  private void exportXMLElement(CategoryNode node, TreePath path, StringBuffer xml) {
    CategoryExplorerTree tree = _monitor.getCategoryExplorerTree();

    xml.append("\t<").append(CATEGORY).append(" ");
    xml.append(NAME).append("=\"").append(node.getTitle()).append("\" ");
    xml.append(PATH).append("=\"").append(treePathToString(path)).append("\" ");
    xml.append(EXPANDED).append("=\"").append(tree.isExpanded(path)).append("\" ");
    xml.append(SELECTED).append("=\"").append(node.isSelected()).append("\"/>\r\n");
  }

  private void exportLogLevelXMLElement(String label, boolean selected, StringBuffer xml) {
    xml.append("\t\t<").append(LEVEL).append(" ").append(NAME);
    xml.append("=\"").append(label).append("\" ");
    xml.append(SELECTED).append("=\"").append(selected);
    xml.append("\"/>\r\n");
  }

  private void exportLogLevelColorXMLElement(String label, Color color, StringBuffer xml) {
    xml.append("\t\t<").append(COLORLEVEL).append(" ").append(NAME);
    xml.append("=\"").append(label).append("\" ");
    xml.append(RED).append("=\"").append(color.getRed()).append("\" ");
    xml.append(GREEN).append("=\"").append(color.getGreen()).append("\" ");
    xml.append(BLUE).append("=\"").append(color.getBlue());
    xml.append("\"/>\r\n");
  }

  private void exportLogTableColumnXMLElement(String label, boolean selected, StringBuffer xml) {
    xml.append("\t\t<").append(COLUMN).append(" ").append(NAME);
    xml.append("=\"").append(label).append("\" ");
    xml.append(SELECTED).append("=\"").append(selected);
    xml.append("\"/>\r\n");
  }
  //--------------------------------------------------------------------------
  //   Nested Top-Level Classes or Interfaces:
  //--------------------------------------------------------------------------

}