/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements.  See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License.  You may obtain a copy of the License at *  *      http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.log4j.lf5.viewer.configure;import org.apache.log4j.lf5.LogLevel;import org.apache.log4j.lf5.LogLevelFormatException;import org.apache.log4j.lf5.viewer.LogBrokerMonitor;import org.apache.log4j.lf5.viewer.LogTable;import org.apache.log4j.lf5.viewer.categoryexplorer.CategoryExplorerModel;import org.apache.log4j.lf5.viewer.categoryexplorer.CategoryExplorerTree;import org.apache.log4j.lf5.viewer.categoryexplorer.CategoryNode;import org.apache.log4j.lf5.viewer.categoryexplorer.CategoryPath;import org.apache.log4j.lf5.viewer.LogTableColumn;import org.apache.log4j.lf5.viewer.LogTableColumnFormatException;import org.w3c.dom.Document;import org.w3c.dom.NamedNodeMap;import org.w3c.dom.Node;import org.w3c.dom.NodeList;import javax.swing.*;import javax.swing.tree.TreePath;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import java.awt.*;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.io.PrintWriter;import java.util.*;import java.util.List;/** * <p>ConfigurationManager handles the storage and retrival of the state of * the CategoryExplorer * * @author Richard Hurst * @author Brad Marlborough */// Contributed by ThoughtWorks Inc.public class ConfigurationManager extends Object {  //--------------------------------------------------------------------------  //   Constants:  //--------------------------------------------------------------------------  private static final String CONFIG_FILE_NAME = "lf5_configuration.xml";  private static final String NAME = "name";  private static final String PATH = "path";  private static final String SELECTED = "selected";  private static final String EXPANDED = "expanded";  private static final String CATEGORY = "category";  private static final String FIRST_CATEGORY_NAME = "Categories";  private static final String LEVEL = "level";  private static final String COLORLEVEL = "colorlevel";  private static final String RED = "red";  private static final String GREEN = "green";  private static final String BLUE = "blue";  private static final String COLUMN = "column";  private static final String NDCTEXTFILTER = "searchtext";  //--------------------------------------------------------------------------  //   Protected Variables:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Private Variables:  //--------------------------------------------------------------------------  private LogBrokerMonitor _monitor = null;  private LogTable _table = null;  //--------------------------------------------------------------------------  //   Constructors:  //--------------------------------------------------------------------------  public ConfigurationManager(LogBrokerMonitor monitor, LogTable table) {    super();    _monitor = monitor;    _table = table;    load();  }  //--------------------------------------------------------------------------  //   Public Methods:  //--------------------------------------------------------------------------  public void save() {    CategoryExplorerModel model = _monitor.getCategoryExplorerTree().getExplorerModel();    CategoryNode root = model.getRootCategoryNode();    StringBuffer xml = new StringBuffer(2048);    openXMLDocument(xml);    openConfigurationXML(xml);    processLogRecordFilter(_monitor.getNDCTextFilter(), xml);    processLogLevels(_monitor.getLogLevelMenuItems(), xml);    processLogLevelColors(_monitor.getLogLevelMenuItems(),        LogLevel.getLogLevelColorMap(), xml);    processLogTableColumns(LogTableColumn.getLogTableColumns(), xml);    processConfigurationNode(root, xml);    closeConfigurationXML(xml);    store(xml.toString());  }  public void reset() {    deleteConfigurationFile();    collapseTree();    selectAllNodes();  }  public static String treePathToString(TreePath path) {    // count begins at one so as to not include the 'Categories' - root category    StringBuffer sb = new StringBuffer();    CategoryNode n = null;    Object[] objects = path.getPath();    for (int i = 1; i < objects.length; i++) {      n = (CategoryNode) objects[i];      if (i > 1) {        sb.append(".");      }      sb.append(n.getTitle());    }    return sb.toString();  }  //--------------------------------------------------------------------------  //   Protected Methods:  //--------------------------------------------------------------------------  protected void load() {    File file = new File(getFilename());    if (file.exists()) {      try {        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.            newInstance();        DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();        Document doc = docBuilder.parse(file);        processRecordFilter(doc);        processCategories(doc);        processLogLevels(doc);        processLogLevelColors(doc);        processLogTableColumns(doc);      } catch (Exception e) {        // ignore all error and just continue as if there was no        // configuration xml file but do report a message        System.err.println("Unable process configuration file at " +            getFilename() + ". Error Message=" + e.getMessage());      }    }  }  // Added in version 1.2 - reads in the NDC text filter from the  // xml configuration file.  If the value of the filter is not null  // or an empty string ("") then the manager will set the LogBrokerMonitor's  // LogRecordFilter to use the NDC LogRecordFilter.  Otherwise, the  // LogBrokerMonitor will use the default LogRecordFilter.  protected void processRecordFilter(Document doc) {    NodeList nodeList = doc.getElementsByTagName(NDCTEXTFILTER);    // there is only one value stored    Node n = nodeList.item(0);    // add check for backwards compatibility  as this feature was added in    // version 1.2    if (n == null) {      return;    }    NamedNodeMap map = n.getAttributes();    String text = getValue(map, NAME);    if (text == null || text.equals("")) {      return;    }    _monitor.setNDCLogRecordFilter(text);  }  protected void processCategories(Document doc) {    CategoryExplorerTree tree = _monitor.getCategoryExplorerTree();    CategoryExplorerModel model = tree.getExplorerModel();    NodeList nodeList = doc.getElementsByTagName(CATEGORY);    // determine where the starting node is    NamedNodeMap map = nodeList.item(0).getAttributes();    int j = (getValue(map, NAME).equalsIgnoreCase(FIRST_CATEGORY_NAME)) ? 1 : 0;    // iterate backwards throught the nodeList so that expansion of the    // list can occur    for (int i = nodeList.getLength() - 1; i >= j; i--) {      Node n = nodeList.item(i);      map = n.getAttributes();      CategoryNode chnode = model.addCategory(new CategoryPath(getValue(map, PATH)));      chnode.setSelected((getValue(map, SELECTED).equalsIgnoreCase("true")) ? true : false);      if (getValue(map, EXPANDED).equalsIgnoreCase("true")) ;      tree.expandPath(model.getTreePathToRoot(chnode));    }  }  protected void processLogLevels(Document doc) {    NodeList nodeList = doc.getElementsByTagName(LEVEL);    Map menuItems = _monitor.getLogLevelMenuItems();    for (int i = 0; i < nodeList.getLength(); i++) {      Node n = nodeList.item(i);      NamedNodeMap map = n.getAttributes();      String name = getValue(map, NAME);      try {        JCheckBoxMenuItem item =            (JCheckBoxMenuItem) menuItems.get(LogLevel.valueOf(name));        item.setSelected(getValue(map, SELECTED).equalsIgnoreCase("true"));      } catch (LogLevelFormatException e) {        // ignore it will be on by default.      }    }  }  protected void processLogLevelColors(Document doc) {    NodeList nodeList = doc.getElementsByTagName(COLORLEVEL);    LogLevel.getLogLevelColorMap();    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