| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| // XCatalogReader.java - Read XML Catalog files |
| |
| /* |
| * Copyright 2001-2004 The Apache Software Foundation or its licensors, |
| * as applicable. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.sun.org.apache.xml.internal.resolver.readers; |
| |
| import java.util.Vector; |
| import com.sun.org.apache.xml.internal.resolver.Catalog; |
| import com.sun.org.apache.xml.internal.resolver.CatalogEntry; |
| import com.sun.org.apache.xml.internal.resolver.CatalogException; |
| import com.sun.org.apache.xml.internal.resolver.helpers.PublicId; |
| |
| import org.xml.sax.*; |
| |
| import javax.xml.parsers.*; |
| |
| /** |
| * Parse "xcatalog" XML Catalog files, this is the XML Catalog format |
| * developed by John Cowan and supported by Apache. |
| * |
| * @see Catalog |
| * |
| * @author Norman Walsh |
| * <a href="mailto:Norman.Walsh@Sun.COM">Norman.Walsh@Sun.COM</a> |
| * |
| */ |
| public class XCatalogReader extends SAXCatalogReader implements SAXCatalogParser { |
| /** The catalog object needs to be stored by the object so that |
| * SAX callbacks can use it. |
| */ |
| protected Catalog catalog = null; |
| |
| /** Set the current catalog. */ |
| public void setCatalog (Catalog catalog) { |
| this.catalog = catalog; |
| } |
| |
| /** Get the current catalog. */ |
| public Catalog getCatalog () { |
| return catalog; |
| } |
| |
| /** The constructor */ |
| public XCatalogReader(SAXParserFactory parserFactory) { |
| super(parserFactory); |
| } |
| |
| // ---------------------------------------------------------------------- |
| // Implement the SAX DocumentHandler interface |
| |
| /** The SAX <code>setDocumentLocator</code> method does nothing. */ |
| public void setDocumentLocator (Locator locator) { |
| return; |
| } |
| |
| /** The SAX <code>startDocument</code> method does nothing. */ |
| public void startDocument () |
| throws SAXException { |
| return; |
| } |
| |
| /** The SAX <code>endDocument</code> method does nothing. */ |
| public void endDocument () |
| throws SAXException { |
| return; |
| } |
| |
| /** |
| * The SAX <code>startElement</code> method recognizes elements |
| * from the plain catalog format and instantiates CatalogEntry |
| * objects for them. |
| * |
| * @param namespaceURI The namespace name of the element. |
| * @param localName The local name of the element. |
| * @param qName The QName of the element. |
| * @param atts The list of attributes on the element. |
| * |
| * @see CatalogEntry |
| */ |
| public void startElement (String namespaceURI, |
| String localName, |
| String qName, |
| Attributes atts) |
| throws SAXException { |
| |
| int entryType = -1; |
| Vector entryArgs = new Vector(); |
| |
| if (localName.equals("Base")) { |
| entryType = catalog.BASE; |
| entryArgs.add(atts.getValue("HRef")); |
| |
| catalog.getCatalogManager().debug.message(4, "Base", atts.getValue("HRef")); |
| } else if (localName.equals("Delegate")) { |
| entryType = catalog.DELEGATE_PUBLIC; |
| entryArgs.add(atts.getValue("PublicId")); |
| entryArgs.add(atts.getValue("HRef")); |
| |
| catalog.getCatalogManager().debug.message(4, "Delegate", |
| PublicId.normalize(atts.getValue("PublicId")), |
| atts.getValue("HRef")); |
| } else if (localName.equals("Extend")) { |
| entryType = catalog.CATALOG; |
| entryArgs.add(atts.getValue("HRef")); |
| |
| catalog.getCatalogManager().debug.message(4, "Extend", atts.getValue("HRef")); |
| } else if (localName.equals("Map")) { |
| entryType = catalog.PUBLIC; |
| entryArgs.add(atts.getValue("PublicId")); |
| entryArgs.add(atts.getValue("HRef")); |
| |
| catalog.getCatalogManager().debug.message(4, "Map", |
| PublicId.normalize(atts.getValue("PublicId")), |
| atts.getValue("HRef")); |
| } else if (localName.equals("Remap")) { |
| entryType = catalog.SYSTEM; |
| entryArgs.add(atts.getValue("SystemId")); |
| entryArgs.add(atts.getValue("HRef")); |
| |
| catalog.getCatalogManager().debug.message(4, "Remap", |
| atts.getValue("SystemId"), |
| atts.getValue("HRef")); |
| } else if (localName.equals("XMLCatalog")) { |
| // nop, start of catalog |
| } else { |
| // This is equivalent to an invalid catalog entry type |
| catalog.getCatalogManager().debug.message(1, "Invalid catalog entry type", localName); |
| } |
| |
| if (entryType >= 0) { |
| try { |
| CatalogEntry ce = new CatalogEntry(entryType, entryArgs); |
| catalog.addEntry(ce); |
| } catch (CatalogException cex) { |
| if (cex.getExceptionType() == CatalogException.INVALID_ENTRY_TYPE) { |
| catalog.getCatalogManager().debug.message(1, "Invalid catalog entry type", localName); |
| } else if (cex.getExceptionType() == CatalogException.INVALID_ENTRY) { |
| catalog.getCatalogManager().debug.message(1, "Invalid catalog entry", localName); |
| } |
| } |
| } |
| } |
| |
| /** The SAX <code>endElement</code> method does nothing. */ |
| public void endElement (String namespaceURI, |
| String localName, |
| String qName) |
| throws SAXException { |
| return; |
| } |
| |
| /** The SAX <code>characters</code> method does nothing. */ |
| public void characters (char ch[], int start, int length) |
| throws SAXException { |
| return; |
| } |
| |
| /** The SAX <code>ignorableWhitespace</code> method does nothing. */ |
| public void ignorableWhitespace (char ch[], int start, int length) |
| throws SAXException { |
| return; |
| } |
| |
| /** The SAX <code>processingInstruction</code> method does nothing. */ |
| public void processingInstruction (String target, String data) |
| throws SAXException { |
| return; |
| } |
| } |