| /******************************************************************************* |
| * Copyright (c) 2001, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.xml.core.internal.search.quickscan; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import javax.xml.parsers.SAXParser; |
| import javax.xml.parsers.SAXParserFactory; |
| import org.eclipse.wst.common.core.search.document.SearchDocument; |
| import org.eclipse.wst.common.core.search.pattern.SearchPattern; |
| import org.eclipse.wst.xml.core.internal.search.matching.PatternMatcher; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| import org.xml.sax.XMLReader; |
| |
| /** |
| * |
| */ |
| public class XMLQuickScan |
| { |
| /* |
| public static String getTargetNamespace(String fullFilePath) |
| { |
| XMLQuickScanContentHandler handler = new XMLQuickScanContentHandler(); |
| parseFile(fullFilePath, handler); |
| return handler.getTargetNamespace(); |
| }*/ |
| |
| /* |
| * Returns information about matches encountered based on the criteria |
| * provided. |
| * |
| public static boolean hasMatch(String fullFilePath, PatternMatcher matcher, SearchPattern pattern) |
| { |
| XMLQuickScanContentHandler handler = new XMLQuickScanContentHandler(matcher, pattern); |
| parseFile(fullFilePath, handler); |
| return handler.hasMatch(); |
| }*/ |
| |
| public static boolean populateSearchDocument(SearchDocument document, PatternMatcher matcher, SearchPattern pattern) |
| { |
| XMLQuickScanContentHandler handler = new XMLQuickScanContentHandler(document, matcher, pattern); |
| parseFile(document.getPath(), handler); |
| return handler.hasMatch(); |
| } |
| |
| private static XMLReader reader; |
| private static XMLReader getOrCreateReader() |
| { |
| if (reader == null) |
| { |
| try |
| { |
| SAXParser parser = SAXParserFactory.newInstance().newSAXParser(); |
| reader = parser.getXMLReader(); |
| reader.setFeature("http://xml.org/sax/features/namespaces", true); //$NON-NLS-1$ |
| reader.setErrorHandler(new InternalErrorHandler()); |
| } |
| catch (Exception e) |
| { |
| } |
| } |
| return reader; |
| } |
| |
| static class InternalErrorHandler implements ErrorHandler |
| { |
| public void error(SAXParseException exception) throws SAXException |
| { |
| } |
| |
| public void fatalError(SAXParseException exception) throws SAXException |
| { |
| } |
| public void warning(SAXParseException exception) throws SAXException |
| { |
| } |
| } |
| |
| private synchronized static void parseFile(String fullFilePath, |
| XMLQuickScanContentHandler handler) |
| { |
| FileInputStream inputStream = null; |
| try |
| { |
| inputStream = new FileInputStream(new File(fullFilePath)); |
| XMLReader reader = getOrCreateReader(); |
| reader.setContentHandler(handler); |
| //System.out.println("parseFile" + reader + " (" + fullFilePath + ")"); |
| reader.parse(new InputSource(inputStream)); |
| } catch (Exception e) |
| { |
| // skip the file |
| } |
| finally{ |
| if(inputStream != null){ |
| try { |
| inputStream.close(); |
| } catch (IOException e) { |
| // can not do much |
| } |
| } |
| |
| } |
| } |
| } |