org.eclipse.linuxtools.tmf/src/org/eclipse/linuxtools/tmf/filter/xml/TmfFilterXMLParser.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  *   Yuriy Vashchuk (yvashchuk@gmail.com) - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.filter.xml;
  14
  15 import java.io.IOException;
  16
  17 import javax.xml.parsers.ParserConfigurationException;
  18 import javax.xml.parsers.SAXParserFactory;
  19
  20 import org.eclipse.linuxtools.tmf.filter.model.ITmfFilterTreeNode;
  21
  22 import org.xml.sax.SAXException;
  23 import org.xml.sax.XMLReader;
  24
  25 /**
  26  * <b><u>FilterXMLParser</u></b>
  27  * <p>
  28  * This is SAX based XML parser
  29  * <p>
  30  */
  31 public class TmfFilterXMLParser {
  32
  33         private static ITmfFilterTreeNode fRoot = null;
  34
  35         /**
  36          * The XMLParser constructor
  37          *
  38          * @param uri The XML file to parse
  39          */
  40         public TmfFilterXMLParser(final String uri) throws SAXException, IOException {
  41
  42                 SAXParserFactory m_parserFactory = null;
  43                 if (m_parserFactory == null) {
  44             m_parserFactory = SAXParserFactory.newInstance();
  45             m_parserFactory.setNamespaceAware(true);
  46         }
  47
  48                 XMLReader saxReader = null;
  49                 try {
  50
  51                         saxReader = m_parserFactory.newSAXParser().getXMLReader();
  52                 saxReader.setContentHandler(new TmfFilterContentHandler());
  53                 saxReader.parse(uri);
  54
  55                 fRoot = ((TmfFilterContentHandler) saxReader.getContentHandler()).getTree();
  56
  57                 } catch (ParserConfigurationException e) {
  58                         e.printStackTrace();
  59                 }
  60         }
  61
  62         /**
  63          * Getter of tree
  64          *
  65          * @return The builded tree
  66          */
  67         public ITmfFilterTreeNode getTree() {
  68                 return fRoot;
  69         }
  70 }