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src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/DomLoader.java@373ffda63c9a (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/DomLoader.java

Wed, 27 Apr 2016 01:27:09 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:27:09 +0800

changeset 0

373ffda63c9a

child 637

9c07ef4934dd

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.xml.internal.bind.v2.runtime.unmarshaller;
aoqi@0	27
aoqi@0	28	import javax.xml.bind.annotation.DomHandler;
aoqi@0	29	import javax.xml.transform.Result;
aoqi@0	30	import javax.xml.transform.sax.TransformerHandler;
aoqi@0	31	import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
aoqi@0	32	import org.xml.sax.SAXException;
aoqi@0	33
aoqi@0	34	/**
aoqi@0	35	* Loads a DOM.
aoqi@0	36	*
aoqi@0	37	* @author Kohsuke Kawaguchi
aoqi@0	38	*/
aoqi@0	39	public class DomLoader<ResultT extends Result> extends Loader {
aoqi@0	40
aoqi@0	41	private final DomHandler<?,ResultT> dom;
aoqi@0	42
aoqi@0	43	/**
aoqi@0	44	* Used to capture the state.
aoqi@0	45	*
aoqi@0	46	* This instance is created for each unmarshalling episode.
aoqi@0	47	*/
aoqi@0	48	private final class State {
aoqi@0	49
aoqi@0	50	/** This handler will receive SAX events. */
aoqi@0	51	private TransformerHandler handler = null;
aoqi@0	52
aoqi@0	53	/** {@link #handler} will produce this result. */
aoqi@0	54	private final ResultT result;
aoqi@0	55
aoqi@0	56	// nest level of elements.
aoqi@0	57	int depth = 1;
aoqi@0	58
aoqi@0	59	public State( UnmarshallingContext context ) throws SAXException {
aoqi@0	60	handler = JAXBContextImpl.createTransformerHandler(context.getJAXBContext().disableSecurityProcessing);
aoqi@0	61	result = dom.createUnmarshaller(context);
aoqi@0	62
aoqi@0	63	handler.setResult(result);
aoqi@0	64
aoqi@0	65	// emulate the start of documents
aoqi@0	66	try {
aoqi@0	67	handler.setDocumentLocator(context.getLocator());
aoqi@0	68	handler.startDocument();
aoqi@0	69	declarePrefixes( context, context.getAllDeclaredPrefixes() );
aoqi@0	70	} catch( SAXException e ) {
aoqi@0	71	context.handleError(e);
aoqi@0	72	throw e;
aoqi@0	73	}
aoqi@0	74	}
aoqi@0	75
aoqi@0	76	public Object getElement() {
aoqi@0	77	return dom.getElement(result);
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	private void declarePrefixes( UnmarshallingContext context, String[] prefixes ) throws SAXException {
aoqi@0	81	for( int i=prefixes.length-1; i>=0; i-- ) {
aoqi@0	82	String nsUri = context.getNamespaceURI(prefixes[i]);
aoqi@0	83	if(nsUri==null) throw new IllegalStateException("prefix \'"+prefixes[i]+"\' isn't bound");
aoqi@0	84	handler.startPrefixMapping(prefixes[i],nsUri );
aoqi@0	85	}
aoqi@0	86	}
aoqi@0	87
aoqi@0	88	private void undeclarePrefixes( String[] prefixes ) throws SAXException {
aoqi@0	89	for( int i=prefixes.length-1; i>=0; i-- )
aoqi@0	90	handler.endPrefixMapping( prefixes[i] );
aoqi@0	91	}
aoqi@0	92	}
aoqi@0	93
aoqi@0	94	public DomLoader(DomHandler<?, ResultT> dom) {
aoqi@0	95	super(true);
aoqi@0	96	this.dom = dom;
aoqi@0	97	}
aoqi@0	98
aoqi@0	99	@Override
aoqi@0	100	public void startElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
aoqi@0	101	UnmarshallingContext context = state.getContext();
aoqi@0	102	if (state.target == null)
aoqi@0	103	state.target = new State(context);
aoqi@0	104
aoqi@0	105	State s = (State) state.target;
aoqi@0	106	try {
aoqi@0	107	s.declarePrefixes(context, context.getNewlyDeclaredPrefixes());
aoqi@0	108	s.handler.startElement(ea.uri, ea.local, ea.getQname(), ea.atts);
aoqi@0	109	} catch (SAXException e) {
aoqi@0	110	context.handleError(e);
aoqi@0	111	throw e;
aoqi@0	112	}
aoqi@0	113	}
aoqi@0	114
aoqi@0	115	@Override
aoqi@0	116	public void childElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
aoqi@0	117	state.loader = this;
aoqi@0	118	State s = (State) state.prev.target;
aoqi@0	119	s.depth++;
aoqi@0	120	state.target = s;
aoqi@0	121	}
aoqi@0	122
aoqi@0	123	@Override
aoqi@0	124	public void text(UnmarshallingContext.State state, CharSequence text) throws SAXException {
aoqi@0	125	if(text.length()==0)
aoqi@0	126	return; // there's no point in creating an empty Text node in DOM.
aoqi@0	127	try {
aoqi@0	128	State s = (State) state.target;
aoqi@0	129	s.handler.characters(text.toString().toCharArray(),0,text.length());
aoqi@0	130	} catch( SAXException e ) {
aoqi@0	131	state.getContext().handleError(e);
aoqi@0	132	throw e;
aoqi@0	133	}
aoqi@0	134	}
aoqi@0	135
aoqi@0	136	@Override
aoqi@0	137	public void leaveElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
aoqi@0	138	State s = (State) state.target;
aoqi@0	139	UnmarshallingContext context = state.getContext();
aoqi@0	140
aoqi@0	141	try {
aoqi@0	142	s.handler.endElement(ea.uri, ea.local, ea.getQname());
aoqi@0	143	s.undeclarePrefixes(context.getNewlyDeclaredPrefixes());
aoqi@0	144	} catch( SAXException e ) {
aoqi@0	145	context.handleError(e);
aoqi@0	146	throw e;
aoqi@0	147	}
aoqi@0	148
aoqi@0	149	if((--s.depth)==0) {
aoqi@0	150	// emulate the end of the document
aoqi@0	151	try {
aoqi@0	152	s.undeclarePrefixes(context.getAllDeclaredPrefixes());
aoqi@0	153	s.handler.endDocument();
aoqi@0	154	} catch( SAXException e ) {
aoqi@0	155	context.handleError(e);
aoqi@0	156	throw e;
aoqi@0	157	}
aoqi@0	158
aoqi@0	159	// we are done
aoqi@0	160	state.target = s.getElement();
aoqi@0	161	}
aoqi@0	162	}
aoqi@0	163
aoqi@0	164	}