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src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ExpressionBuilder.java@0989ad8c0860 (annotated)

src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ExpressionBuilder.java

Tue, 09 Apr 2013 14:51:13 +0100

author

alanb

date

Tue, 09 Apr 2013 14:51:13 +0100

changeset 368

0989ad8c0860

parent 0

373ffda63c9a

permissions

-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2011, 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.tools.internal.xjc.reader.xmlschema;
aoqi@0	27
aoqi@0	28	import java.util.HashMap;
aoqi@0	29	import java.util.Map;
aoqi@0	30
aoqi@0	31	import javax.xml.bind.annotation.XmlAnyElement;
aoqi@0	32	import javax.xml.namespace.QName;
aoqi@0	33
aoqi@0	34	import com.sun.tools.internal.xjc.reader.gbind.Choice;
aoqi@0	35	import com.sun.tools.internal.xjc.reader.gbind.Element;
aoqi@0	36	import com.sun.tools.internal.xjc.reader.gbind.Expression;
aoqi@0	37	import com.sun.tools.internal.xjc.reader.gbind.OneOrMore;
aoqi@0	38	import com.sun.tools.internal.xjc.reader.gbind.Sequence;
aoqi@0	39	import com.sun.xml.internal.xsom.XSElementDecl;
aoqi@0	40	import com.sun.xml.internal.xsom.XSModelGroup;
aoqi@0	41	import com.sun.xml.internal.xsom.XSModelGroupDecl;
aoqi@0	42	import com.sun.xml.internal.xsom.XSParticle;
aoqi@0	43	import com.sun.xml.internal.xsom.XSWildcard;
aoqi@0	44	import com.sun.xml.internal.xsom.visitor.XSTermFunction;
aoqi@0	45	import java.math.BigInteger;
aoqi@0	46
aoqi@0	47	/**
aoqi@0	48	* Visits {@link XSParticle} and creates a corresponding {@link Expression} tree.
aoqi@0	49	* @author Kohsuke Kawaguchi
aoqi@0	50	*/
aoqi@0	51	public final class ExpressionBuilder implements XSTermFunction<Expression> {
aoqi@0	52
aoqi@0	53	public static Expression createTree(XSParticle p) {
aoqi@0	54	return new ExpressionBuilder().particle(p);
aoqi@0	55	}
aoqi@0	56
aoqi@0	57	private ExpressionBuilder() {}
aoqi@0	58
aoqi@0	59	/**
aoqi@0	60	* Wildcard instance needs to be consolidated to one,
aoqi@0	61	* and this is such instance (if any.)
aoqi@0	62	*/
aoqi@0	63	private GWildcardElement wildcard = null;
aoqi@0	64
aoqi@0	65	private final Map<QName,GElementImpl> decls = new HashMap<QName,GElementImpl>();
aoqi@0	66
aoqi@0	67	private XSParticle current;
aoqi@0	68
aoqi@0	69	/**
aoqi@0	70	* We can only have one {@link XmlAnyElement} property,
aoqi@0	71	* so all the wildcards need to be treated as one node.
aoqi@0	72	*/
aoqi@0	73	public Expression wildcard(XSWildcard wc) {
aoqi@0	74	if(wildcard==null)
aoqi@0	75	wildcard = new GWildcardElement();
aoqi@0	76	wildcard.merge(wc);
aoqi@0	77	wildcard.particles.add(current);
aoqi@0	78	return wildcard;
aoqi@0	79	}
aoqi@0	80
aoqi@0	81	public Expression modelGroupDecl(XSModelGroupDecl decl) {
aoqi@0	82	return modelGroup(decl.getModelGroup());
aoqi@0	83	}
aoqi@0	84
aoqi@0	85	public Expression modelGroup(XSModelGroup group) {
aoqi@0	86	XSModelGroup.Compositor comp = group.getCompositor();
aoqi@0	87	if(comp==XSModelGroup.CHOICE) {
aoqi@0	88	// empty choice is not epsilon, but empty set,
aoqi@0	89	// so this initial value is incorrect. But this
aoqi@0	90	// kinda works.
aoqi@0	91	// properly handling empty set requires more work.
aoqi@0	92	Expression e = Expression.EPSILON;
aoqi@0	93	for (XSParticle p : group.getChildren()) {
aoqi@0	94	if(e==null) e = particle(p);
aoqi@0	95	else e = new Choice(e,particle(p));
aoqi@0	96	}
aoqi@0	97	return e;
aoqi@0	98	} else {
aoqi@0	99	Expression e = Expression.EPSILON;
aoqi@0	100	for (XSParticle p : group.getChildren()) {
aoqi@0	101	if(e==null) e = particle(p);
aoqi@0	102	else e = new Sequence(e,particle(p));
aoqi@0	103	}
aoqi@0	104	return e;
aoqi@0	105	}
aoqi@0	106	}
aoqi@0	107
aoqi@0	108	public Element elementDecl(XSElementDecl decl) {
aoqi@0	109	QName n = BGMBuilder.getName(decl);
aoqi@0	110
aoqi@0	111	GElementImpl e = decls.get(n);
aoqi@0	112	if(e==null)
aoqi@0	113	decls.put(n,e=new GElementImpl(n,decl));
aoqi@0	114
aoqi@0	115	e.particles.add(current);
aoqi@0	116	assert current.getTerm()==decl;
aoqi@0	117
aoqi@0	118	return e;
aoqi@0	119	}
aoqi@0	120
aoqi@0	121	public Expression particle(XSParticle p) {
aoqi@0	122	current = p;
aoqi@0	123	Expression e = p.getTerm().apply(this);
aoqi@0	124
aoqi@0	125	if(p.isRepeated())
aoqi@0	126	e = new OneOrMore(e);
aoqi@0	127
aoqi@0	128	if (BigInteger.ZERO.equals(p.getMinOccurs()))
aoqi@0	129	e = new Choice(e,Expression.EPSILON);
aoqi@0	130
aoqi@0	131	return e;
aoqi@0	132	}
aoqi@0	133
aoqi@0	134	}