| /******************************************************************************* |
| * 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.catalog; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Stack; |
| |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.parsers.SAXParser; |
| import javax.xml.parsers.SAXParserFactory; |
| |
| import org.eclipse.wst.common.uriresolver.internal.util.URIHelper; |
| import org.eclipse.wst.xml.core.internal.Logger; |
| import org.eclipse.wst.xml.core.internal.XMLCoreMessages; |
| import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalogElement; |
| import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalogEntry; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.DefaultHandler; |
| import org.eclipse.wst.common.uriresolver.internal.URI; |
| |
| /** |
| * |
| * |
| */ |
| public final class CatalogReader |
| { |
| public static void read(Catalog xmlCatalog, InputStream input) throws IOException |
| { |
| try |
| { |
| SAXParserFactory factory = SAXParserFactory.newInstance(); |
| factory.setNamespaceAware(true); |
| SAXParser parser = factory.newSAXParser(); |
| parser.parse(new InputSource(input), new CatalogContentHandler(xmlCatalog)); |
| } |
| catch (ParserConfigurationException e) |
| { |
| Logger.logException(e); |
| } |
| catch (SAXException e) |
| { |
| Logger.logException(e); |
| } |
| } |
| protected static class CatalogContentHandler extends DefaultHandler |
| { |
| protected Catalog catalog; |
| protected Stack baseURIStack = new Stack(); |
| |
| public CatalogContentHandler(Catalog xmlCatalog) |
| { |
| this.catalog = xmlCatalog; |
| String base = xmlCatalog.getBase(); |
| if(base == null || base == "") { //$NON-NLS-1$ |
| base = xmlCatalog.getLocation(); |
| } |
| baseURIStack.push(base); |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException |
| { |
| // set base |
| String base = attributes.getValue(OASISCatalogConstants.ATTR_BASE); //$NON-NLS-1$ |
| if (base != null && !base.equals("")) //$NON-NLS-1$ |
| { |
| baseURIStack.push(base); |
| } else { |
| baseURIStack.push(baseURIStack.peek()); |
| } |
| |
| // processing for backward compatability start |
| if (localName.equals(CompatabilityConstants.TAG_USER_ENTRY)) |
| { |
| int type = ICatalogEntry.ENTRY_TYPE_PUBLIC; |
| String typeName = attributes.getValue("", CompatabilityConstants.ATT_TYPE); //$NON-NLS-1$ |
| if (typeName != null) |
| { |
| if (typeName.compareToIgnoreCase("SYSTEM") == 0) //$NON-NLS-1$ |
| { |
| type = ICatalogEntry.ENTRY_TYPE_SYSTEM; |
| } |
| } |
| ICatalogElement catalogElement = catalog.createCatalogElement(type); |
| if (catalogElement instanceof CatalogEntry) |
| { |
| CatalogEntry catalogEntry = (CatalogEntry) catalogElement; |
| String key = attributes.getValue("", CompatabilityConstants.ATT_ID); //$NON-NLS-1$ |
| catalogEntry.setKey(key); |
| String entryUri = attributes.getValue("", CompatabilityConstants.ATT_URI); //$NON-NLS-1$ |
| |
| // For relative URIs, try to resolve them using the corresponding base URI. |
| if(URI.createURI(entryUri).isRelative()) { |
| entryUri = URI.resolveRelativeURI(entryUri, baseURIStack.peek().toString()); |
| } |
| |
| catalogEntry.setURI(URIHelper.ensureURIProtocolFormat(entryUri)); |
| String webURL = attributes.getValue("", CompatabilityConstants.ATT_WEB_URL); //$NON-NLS-1$ |
| if (webURL != null) |
| { |
| catalogEntry.setAttributeValue( |
| ICatalogEntry.ATTR_WEB_URL, webURL); |
| } |
| } |
| catalog.addCatalogElement(catalogElement); |
| return; |
| } |
| // processing for backward compatability start |
| |
| int type = ICatalogEntry.ENTRY_TYPE_PUBLIC; |
| String key = null; |
| //dw String catalogId = attributes.getValue("", OASISCatalogConstants.ATTR_ID); |
| if (OASISCatalogConstants.TAG_PUBLIC.equals(localName)) |
| { |
| key = attributes.getValue("", OASISCatalogConstants.ATTR_PUBLIC_ID); //$NON-NLS-1$ |
| } |
| else if (OASISCatalogConstants.TAG_SYSTEM.equals(localName)) |
| { |
| key = attributes.getValue("", OASISCatalogConstants.ATTR_SYSTEM_ID); //$NON-NLS-1$ |
| type = ICatalogEntry.ENTRY_TYPE_SYSTEM; |
| } |
| else if (OASISCatalogConstants.TAG_URI.equals(localName)) |
| { |
| key = attributes.getValue("", OASISCatalogConstants.ATTR_NAME); //$NON-NLS-1$ |
| type = ICatalogEntry.ENTRY_TYPE_URI; |
| } |
| else if (OASISCatalogConstants.TAG_NEXT_CATALOG.equals(localName)) |
| { |
| String nextCatalogId = attributes.getValue("", OASISCatalogConstants.ATTR_ID); //$NON-NLS-1$ |
| |
| String location = attributes.getValue("", OASISCatalogConstants.ATTR_CATALOG); //$NON-NLS-1$ |
| NextCatalog delegate = new NextCatalog(); |
| delegate.setCatalogLocation(location); |
| delegate.setId(nextCatalogId); |
| catalog.addCatalogElement(delegate); |
| return; |
| } |
| else{ |
| // do not handle other entries |
| return; |
| } |
| if (key == null || key.equals("")) //$NON-NLS-1$ |
| { |
| Logger.log(Logger.ERROR, XMLCoreMessages.Catalog_entry_key_not_set); |
| return; |
| } |
| String entryURI = attributes.getValue("", OASISCatalogConstants.ATTR_URI); // mandatory //$NON-NLS-1$ |
| if (entryURI == null || entryURI.equals("")) //$NON-NLS-1$ |
| { |
| Logger.log(Logger.ERROR, XMLCoreMessages.Catalog_entry_uri_not_set); |
| return; |
| } |
| |
| ICatalogElement catalogElement = catalog.createCatalogElement(type); |
| if (catalogElement instanceof CatalogEntry) |
| { |
| CatalogEntry catalogEntry = (CatalogEntry) catalogElement; |
| catalogEntry.setKey(key); |
| |
| // For relative URIs, try to resolve them using the corresponding base URI. |
| if(URI.createURI(entryURI).isRelative()) { |
| entryURI = URI.resolveRelativeURI(entryURI, baseURIStack.peek().toString()); |
| } |
| catalogEntry.setURI(URIHelper.ensureURIProtocolFormat(entryURI)); |
| } |
| // process any other attributes |
| for (int j = 0; j < attributes.getLength(); j++) |
| { |
| String attrName = attributes.getLocalName(j); |
| if (!attrName.equals(OASISCatalogConstants.ATTR_URI) && !attrName.equals(OASISCatalogConstants.ATTR_NAME) && !attrName.equals(OASISCatalogConstants.ATTR_PUBLIC_ID) |
| && !attrName.equals(OASISCatalogConstants.ATTR_SYSTEM_ID) && !attrName.equals(OASISCatalogConstants.ATTR_CATALOG) && !attrName.equals(OASISCatalogConstants.ATTR_ID) |
| && !attrName.equals(OASISCatalogConstants.ATTR_BASE)) |
| { |
| String attrValue = attributes.getValue(attrName); |
| if (attrValue != null && !attrValue.equals("")) //$NON-NLS-1$ |
| { |
| catalogElement.setAttributeValue(attrName, attrValue); |
| } |
| } |
| } |
| catalog.addCatalogElement(catalogElement); |
| |
| } |
| |
| public void endElement(String uri, String localName, String qName) throws SAXException |
| { |
| if (baseURIStack.size() > 0) |
| { |
| baseURIStack.pop(); |
| } |
| } |
| |
| } |
| |
| // for backward compatability |
| interface CompatabilityConstants{ |
| |
| public static final String TAG_ID_XML_CATALOG_SETTINGS = "XMLCatalogSettings"; //$NON-NLS-1$ |
| public static final String TAG_ID_USER_ENTRIES = "UserEntries"; //$NON-NLS-1$ |
| public static final String TAG_USER_ENTRY = "UserEntry"; //$NON-NLS-1$ |
| public static final String ATT_TYPE = "TYPE"; //$NON-NLS-1$ |
| public static final String ATT_ID = "ID"; //$NON-NLS-1$ |
| public static final String ATT_URI = "URI"; //$NON-NLS-1$ |
| public static final String ATT_WEB_URL = "WEB_URL"; //$NON-NLS-1$ |
| } |
| } |
