org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/filter/FilterManager.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.filter;
  14
  15 import java.io.FileNotFoundException;
  16 import java.io.IOException;
  17
  18 import javax.xml.parsers.ParserConfigurationException;
  19
  20 import org.eclipse.linuxtools.tmf.core.filter.model.ITmfFilterTreeNode;
  21 import org.eclipse.linuxtools.tmf.core.filter.model.TmfFilterRootNode;
  22 import org.eclipse.linuxtools.tmf.core.filter.xml.TmfFilterXMLParser;
  23 import org.eclipse.linuxtools.tmf.core.filter.xml.TmfFilterXMLWriter;
  24 import org.eclipse.linuxtools.tmf.ui.TmfUiPlugin;
  25 import org.xml.sax.SAXException;
  26
  27 public class FilterManager {
  28
  29         private static final String SAVED_FILTERS_FILE_NAME = "saved_filters.xml"; //$NON-NLS-1$
  30         private static final String SAVED_FILTERS_PATH_NAME =
  31         TmfUiPlugin.getDefault().getStateLocation().addTrailingSeparator().append(SAVED_FILTERS_FILE_NAME).toString();
  32
  33     private static ITmfFilterTreeNode fRoot = new TmfFilterRootNode();
  34     static {
  35         try {
  36                 fRoot = new TmfFilterXMLParser(SAVED_FILTERS_PATH_NAME).getTree();
  37         } catch (FileNotFoundException e) {
  38         } catch (SAXException e) {
  39                 e.printStackTrace();
  40         } catch (IOException e) {
  41                 e.printStackTrace();
  42         }
  43     }
  44
  45     public static ITmfFilterTreeNode[] getSavedFilters() {
  46         return fRoot.clone().getChildren();
  47     }
  48
  49     public static void setSavedFilters(ITmfFilterTreeNode[] filters) {
  50         fRoot = new TmfFilterRootNode();
  51         for (ITmfFilterTreeNode filter : filters) {
  52                 fRoot.addChild(filter.clone());
  53         }
  54                 try {
  55                 TmfFilterXMLWriter writerXML = new TmfFilterXMLWriter(fRoot);
  56                 writerXML.saveTree(SAVED_FILTERS_PATH_NAME);
  57         } catch (IOException e) {
  58                 e.printStackTrace();
  59         } catch (ParserConfigurationException e) {
  60                 e.printStackTrace();
  61         }
  62     }
  63 }