| /******************************************************************************* |
| * Copyright (c) 2002 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 |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.xml.core.internal.contentmodel.internal.annotation; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.util.PropertyResourceBundle; |
| import java.util.ResourceBundle; |
| |
| import javax.xml.parsers.SAXParser; |
| import javax.xml.parsers.SAXParserFactory; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.wst.xml.core.internal.Logger; |
| import org.eclipse.wst.xml.core.internal.contentmodel.annotation.Annotation; |
| import org.eclipse.wst.xml.core.internal.contentmodel.annotation.AnnotationMap; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| |
| /** |
| * |
| */ |
| public class AnnotationFileParser { |
| public static final String TAG_ID_ANNOTATIONS = "abstractGrammarAnnotations"; //$NON-NLS-1$ |
| public static final String TAG_ID_ANNOTATION = "annotation"; //$NON-NLS-1$ |
| public static final String TAG_ID_PROPERTY = "property"; //$NON-NLS-1$ |
| |
| /** |
| * This method is called to parse an annotation file and store the |
| * contents into an annotationMap |
| */ |
| private void parse(AnnotationMap annotationMap, InputStream input, AnnotationFileInfo fileInfo) throws Exception { |
| // move to Xerces-2.... add 'contextClassLoader' stuff |
| ClassLoader prevClassLoader = Thread.currentThread().getContextClassLoader(); |
| try { |
| SAXParserFactory factory = SAXParserFactory.newInstance(); |
| factory.setNamespaceAware(true); |
| SAXParser parser = factory.newSAXParser(); |
| parser.parse(new InputSource(input), new AnnotationMapContentHandler(annotationMap, fileInfo)); |
| } |
| finally { |
| Thread.currentThread().setContextClassLoader(prevClassLoader); |
| } |
| } |
| |
| /** |
| * This method is called to parse an annotation file and store the |
| * contents into an annotationMap |
| */ |
| public void parse(AnnotationMap map, AnnotationFileInfo fileInfo) throws Exception { |
| InputStream inputStream = null; |
| try { |
| URL url = Platform.find(Platform.getBundle(fileInfo.getBundleId()), Path.fromOSString(fileInfo.getAnnotationFileLocation())); |
| if (url != null) { |
| inputStream = url.openStream(); |
| parse(map, inputStream, fileInfo); |
| } |
| } |
| catch (Exception e) { |
| Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e); |
| throw (e); |
| } |
| finally { |
| try { |
| if (inputStream != null) { |
| inputStream.close(); |
| } |
| } |
| catch (IOException e) { |
| } |
| } |
| } |
| |
| protected class AnnotationMapContentHandler extends DefaultHandler { |
| private AnnotationMap annotationMap; |
| private Annotation currentAnnotation; |
| private String currentPropertyName; |
| private StringBuffer propertyValueBuffer; |
| private ResourceBundle resourceBundle; |
| private AnnotationFileInfo fFileInfo; |
| |
| public AnnotationMapContentHandler(AnnotationMap annotationMap, AnnotationFileInfo fileInfo) { |
| this.annotationMap = annotationMap; |
| this.fFileInfo = fileInfo; |
| } |
| |
| private URL generatePropertiesFileURL(AnnotationFileInfo fileInfo, String propertiesLocation) { |
| URL propertiesURL = null; |
| |
| // prepend $nl$ variable to location |
| IPath annotationPath = Path.fromOSString("$nl$/" + fileInfo.getAnnotationFileLocation()); //$NON-NLS-1$ |
| // remove the annotation.xml file |
| IPath annotationFolder = annotationPath.removeLastSegments(1); |
| // append location of propertiles file |
| IPath propertiesFile = annotationFolder.append(propertiesLocation); |
| // append .properties extension if needed |
| if (propertiesFile.getFileExtension() == null) |
| propertiesFile = propertiesFile.addFileExtension("properties"); //$NON-NLS-1$ |
| // create a URL out of the properties file location |
| propertiesURL = Platform.find(Platform.getBundle(fileInfo.getBundleId()), propertiesFile); |
| return propertiesURL; |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| propertyValueBuffer = new StringBuffer(); |
| if (localName.equals(TAG_ID_ANNOTATIONS)) { |
| int attributesLength = attributes.getLength(); |
| for (int i = 0; i < attributesLength; i++) { |
| String attributeName = attributes.getLocalName(i); |
| String attributeValue = attributes.getValue(i); |
| if (attributeName.equals("propertiesLocation")) //$NON-NLS-1$ |
| { |
| URL bundleURL = generatePropertiesFileURL(fFileInfo, attributeValue); |
| if (bundleURL != null) { |
| InputStream bundleStream = null; |
| try { |
| bundleStream = bundleURL.openStream(); |
| resourceBundle = new PropertyResourceBundle(bundleStream); |
| } |
| catch (IOException e) { |
| Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e); |
| } |
| finally { |
| try { |
| if (bundleStream != null) |
| bundleStream.close(); |
| } |
| catch (IOException x) { |
| Logger.log(Logger.WARNING_DEBUG, x.getMessage(), x); |
| } |
| } |
| } |
| } |
| else if (attributeName.equals("caseSensitive")) //$NON-NLS-1$ |
| { |
| if (attributeValue.trim().equals("false")) //$NON-NLS-1$ |
| { |
| annotationMap.setCaseSensitive(false); |
| } |
| } |
| } |
| } |
| else if (localName.equals(TAG_ID_ANNOTATION)) { |
| currentAnnotation = null; |
| String specValue = attributes.getValue("spec"); //$NON-NLS-1$ |
| if (specValue != null) { |
| currentAnnotation = new Annotation(); |
| currentAnnotation.setSpec(specValue); |
| } |
| annotationMap.addAnnotation(currentAnnotation); |
| } |
| else if (localName.equals(TAG_ID_PROPERTY)) { |
| if (currentAnnotation != null) { |
| currentPropertyName = attributes.getValue("name"); //$NON-NLS-1$ |
| } |
| } |
| } |
| |
| public void endElement(String uri, String localName, String qName) throws SAXException { |
| if (currentPropertyName != null && currentAnnotation != null) { |
| String propertyValue = propertyValueBuffer.toString(); |
| if (propertyValue != null) { |
| if (propertyValue.startsWith("%") && resourceBundle != null) //$NON-NLS-1$ |
| { |
| try { |
| propertyValue = resourceBundle.getString(propertyValue.substring(1)); |
| } |
| catch (Exception e) { |
| // ignore any exception that occurs while trying |
| // to fetch a resource |
| } |
| } |
| currentAnnotation.setProperty(currentPropertyName, propertyValue); |
| } |
| } |
| |
| if (localName.equals(TAG_ID_ANNOTATION)) { |
| currentAnnotation = null; |
| } |
| else if (localName.equals(TAG_ID_PROPERTY)) { |
| currentPropertyName = null; |
| } |
| } |
| |
| public void characters(char[] ch, int start, int length) { |
| if (currentPropertyName != null && currentAnnotation != null) { |
| propertyValueBuffer.append(ch, start, length); |
| } |
| } |
| } |
| } |