| /* |
| * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.bind.v2.runtime.unmarshaller; |
| |
| import javax.xml.namespace.NamespaceContext; |
| |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| /** |
| * {@link XmlVisitor} decorator that interns all string tokens. |
| * |
| * @author Kohsuke Kawaguchi |
| */ |
| public final class InterningXmlVisitor implements XmlVisitor { |
| private final XmlVisitor next; |
| |
| private final AttributesImpl attributes = new AttributesImpl(); |
| |
| public InterningXmlVisitor(XmlVisitor next) { |
| this.next = next; |
| } |
| |
| public void startDocument(LocatorEx locator, NamespaceContext nsContext) throws SAXException { |
| next.startDocument(locator,nsContext); |
| } |
| |
| public void endDocument() throws SAXException { |
| next.endDocument(); |
| } |
| |
| public void startElement(TagName tagName ) throws SAXException { |
| attributes.setAttributes(tagName.atts); |
| tagName.atts = attributes; |
| tagName.uri = intern(tagName.uri); |
| tagName.local = intern(tagName.local); |
| next.startElement(tagName); |
| } |
| |
| public void endElement(TagName tagName ) throws SAXException { |
| tagName.uri = intern(tagName.uri); |
| tagName.local = intern(tagName.local); |
| next.endElement(tagName); |
| } |
| |
| public void startPrefixMapping( String prefix, String nsUri ) throws SAXException { |
| next.startPrefixMapping(intern(prefix),intern(nsUri)); |
| } |
| |
| public void endPrefixMapping( String prefix ) throws SAXException { |
| next.endPrefixMapping(intern(prefix)); |
| } |
| |
| public void text( CharSequence pcdata ) throws SAXException { |
| next.text(pcdata); |
| } |
| |
| public UnmarshallingContext getContext() { |
| return next.getContext(); |
| } |
| |
| public TextPredictor getPredictor() { |
| return next.getPredictor(); |
| } |
| |
| private static class AttributesImpl implements Attributes { |
| private Attributes core; |
| |
| void setAttributes(Attributes att) { |
| this.core = att; |
| } |
| |
| public int getIndex(String qName) { |
| return core.getIndex(qName); |
| } |
| |
| public int getIndex(String uri, String localName) { |
| return core.getIndex(uri, localName); |
| } |
| |
| public int getLength() { |
| return core.getLength(); |
| } |
| |
| public String getLocalName(int index) { |
| return intern(core.getLocalName(index)); |
| } |
| |
| public String getQName(int index) { |
| return intern(core.getQName(index)); |
| } |
| |
| public String getType(int index) { |
| return intern(core.getType(index)); |
| } |
| |
| public String getType(String qName) { |
| return intern(core.getType(qName)); |
| } |
| |
| public String getType(String uri, String localName) { |
| return intern(core.getType(uri, localName)); |
| } |
| |
| public String getURI(int index) { |
| return intern(core.getURI(index)); |
| } |
| |
| // |
| // since values may vary a lot, |
| // we don't (probably shouldn't) intern values. |
| // |
| |
| public String getValue(int index) { |
| return core.getValue(index); |
| } |
| |
| public String getValue(String qName) { |
| return core.getValue(qName); |
| } |
| |
| public String getValue(String uri, String localName) { |
| return core.getValue(uri, localName); |
| } |
| } |
| |
| private static String intern(String s) { |
| if(s==null) return null; |
| else return s.intern(); |
| } |
| } |