1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/DomLoader.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,164 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.bind.v2.runtime.unmarshaller;
1.30 +
1.31 +import javax.xml.bind.annotation.DomHandler;
1.32 +import javax.xml.transform.Result;
1.33 +import javax.xml.transform.sax.TransformerHandler;
1.34 +import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
1.35 +import org.xml.sax.SAXException;
1.36 +
1.37 +/**
1.38 + * Loads a DOM.
1.39 + *
1.40 + * @author Kohsuke Kawaguchi
1.41 + */
1.42 +public class DomLoader<ResultT extends Result> extends Loader {
1.43 +
1.44 + private final DomHandler<?,ResultT> dom;
1.45 +
1.46 + /**
1.47 + * Used to capture the state.
1.48 + *
1.49 + * This instance is created for each unmarshalling episode.
1.50 + */
1.51 + private final class State {
1.52 +
1.53 + /** This handler will receive SAX events. */
1.54 + private TransformerHandler handler = null;
1.55 +
1.56 + /** {@link #handler} will produce this result. */
1.57 + private final ResultT result;
1.58 +
1.59 + // nest level of elements.
1.60 + int depth = 1;
1.61 +
1.62 + public State( UnmarshallingContext context ) throws SAXException {
1.63 + handler = JAXBContextImpl.createTransformerHandler(context.getJAXBContext().disableSecurityProcessing);
1.64 + result = dom.createUnmarshaller(context);
1.65 +
1.66 + handler.setResult(result);
1.67 +
1.68 + // emulate the start of documents
1.69 + try {
1.70 + handler.setDocumentLocator(context.getLocator());
1.71 + handler.startDocument();
1.72 + declarePrefixes( context, context.getAllDeclaredPrefixes() );
1.73 + } catch( SAXException e ) {
1.74 + context.handleError(e);
1.75 + throw e;
1.76 + }
1.77 + }
1.78 +
1.79 + public Object getElement() {
1.80 + return dom.getElement(result);
1.81 + }
1.82 +
1.83 + private void declarePrefixes( UnmarshallingContext context, String[] prefixes ) throws SAXException {
1.84 + for( int i=prefixes.length-1; i>=0; i-- ) {
1.85 + String nsUri = context.getNamespaceURI(prefixes[i]);
1.86 + if(nsUri==null) throw new IllegalStateException("prefix \'"+prefixes[i]+"\' isn't bound");
1.87 + handler.startPrefixMapping(prefixes[i],nsUri );
1.88 + }
1.89 + }
1.90 +
1.91 + private void undeclarePrefixes( String[] prefixes ) throws SAXException {
1.92 + for( int i=prefixes.length-1; i>=0; i-- )
1.93 + handler.endPrefixMapping( prefixes[i] );
1.94 + }
1.95 + }
1.96 +
1.97 + public DomLoader(DomHandler<?, ResultT> dom) {
1.98 + super(true);
1.99 + this.dom = dom;
1.100 + }
1.101 +
1.102 + @Override
1.103 + public void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
1.104 + UnmarshallingContext context = state.getContext();
1.105 + if (state.target == null)
1.106 + state.target = new State(context);
1.107 +
1.108 + State s = (State) state.target;
1.109 + try {
1.110 + s.declarePrefixes(context, context.getNewlyDeclaredPrefixes());
1.111 + s.handler.startElement(ea.uri, ea.local, ea.getQname(), ea.atts);
1.112 + } catch (SAXException e) {
1.113 + context.handleError(e);
1.114 + throw e;
1.115 + }
1.116 + }
1.117 +
1.118 + @Override
1.119 + public void childElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
1.120 + state.loader = this;
1.121 + State s = (State) state.prev.target;
1.122 + s.depth++;
1.123 + state.target = s;
1.124 + }
1.125 +
1.126 + @Override
1.127 + public void text(UnmarshallingContext.State state, CharSequence text) throws SAXException {
1.128 + if(text.length()==0)
1.129 + return; // there's no point in creating an empty Text node in DOM.
1.130 + try {
1.131 + State s = (State) state.target;
1.132 + s.handler.characters(text.toString().toCharArray(),0,text.length());
1.133 + } catch( SAXException e ) {
1.134 + state.getContext().handleError(e);
1.135 + throw e;
1.136 + }
1.137 + }
1.138 +
1.139 + @Override
1.140 + public void leaveElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
1.141 + State s = (State) state.target;
1.142 + UnmarshallingContext context = state.getContext();
1.143 +
1.144 + try {
1.145 + s.handler.endElement(ea.uri, ea.local, ea.getQname());
1.146 + s.undeclarePrefixes(context.getNewlyDeclaredPrefixes());
1.147 + } catch( SAXException e ) {
1.148 + context.handleError(e);
1.149 + throw e;
1.150 + }
1.151 +
1.152 + if((--s.depth)==0) {
1.153 + // emulate the end of the document
1.154 + try {
1.155 + s.undeclarePrefixes(context.getAllDeclaredPrefixes());
1.156 + s.handler.endDocument();
1.157 + } catch( SAXException e ) {
1.158 + context.handleError(e);
1.159 + throw e;
1.160 + }
1.161 +
1.162 + // we are done
1.163 + state.target = s.getElement();
1.164 + }
1.165 + }
1.166 +
1.167 +}
