jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ExpressionBuilder.java@0989ad8c0860

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

     1 /*

     2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.tools.internal.xjc.reader.xmlschema;

    28 import java.util.HashMap;

    29 import java.util.Map;

    31 import javax.xml.bind.annotation.XmlAnyElement;

    32 import javax.xml.namespace.QName;

    34 import com.sun.tools.internal.xjc.reader.gbind.Choice;

    35 import com.sun.tools.internal.xjc.reader.gbind.Element;

    36 import com.sun.tools.internal.xjc.reader.gbind.Expression;

    37 import com.sun.tools.internal.xjc.reader.gbind.OneOrMore;

    38 import com.sun.tools.internal.xjc.reader.gbind.Sequence;

    39 import com.sun.xml.internal.xsom.XSElementDecl;

    40 import com.sun.xml.internal.xsom.XSModelGroup;

    41 import com.sun.xml.internal.xsom.XSModelGroupDecl;

    42 import com.sun.xml.internal.xsom.XSParticle;

    43 import com.sun.xml.internal.xsom.XSWildcard;

    44 import com.sun.xml.internal.xsom.visitor.XSTermFunction;

    45 import java.math.BigInteger;

    47 /**

    48  * Visits {@link XSParticle} and creates a corresponding {@link Expression} tree.

    49  * @author Kohsuke Kawaguchi

    50  */

    51 public final class ExpressionBuilder implements XSTermFunction<Expression> {

    53     public static Expression createTree(XSParticle p) {

    54         return new ExpressionBuilder().particle(p);

    55     }

    57     private ExpressionBuilder() {}

    59     /**

    60      * Wildcard instance needs to be consolidated to one,

    61      * and this is such instance (if any.)

    62      */

    63     private GWildcardElement wildcard = null;

    65     private final Map<QName,GElementImpl> decls = new HashMap<QName,GElementImpl>();

    67     private XSParticle current;

    69     /**

    70      * We can only have one {@link XmlAnyElement} property,

    71      * so all the wildcards need to be treated as one node.

    72      */

    73     public Expression wildcard(XSWildcard wc) {

    74         if(wildcard==null)

    75             wildcard = new GWildcardElement();

    76         wildcard.merge(wc);

    77         wildcard.particles.add(current);

    78         return wildcard;

    79     }

    81     public Expression modelGroupDecl(XSModelGroupDecl decl) {

    82         return modelGroup(decl.getModelGroup());

    83     }

    85     public Expression modelGroup(XSModelGroup group) {

    86         XSModelGroup.Compositor comp = group.getCompositor();

    87         if(comp==XSModelGroup.CHOICE) {

    88             // empty choice is not epsilon, but empty set,

    89             // so this initial value is incorrect. But this

    90             // kinda works.

    91             // properly handling empty set requires more work.

    92             Expression e = Expression.EPSILON;

    93             for (XSParticle p : group.getChildren()) {

    94                 if(e==null)     e = particle(p);

    95                 else            e = new Choice(e,particle(p));

    96             }

    97             return e;

    98         } else {

    99             Expression e = Expression.EPSILON;

   100             for (XSParticle p : group.getChildren()) {

   101                 if(e==null)     e = particle(p);

   102                 else            e = new Sequence(e,particle(p));

   103             }

   104             return e;

   105         }

   106     }

   108     public Element elementDecl(XSElementDecl decl) {

   109         QName n = BGMBuilder.getName(decl);

   111         GElementImpl e = decls.get(n);

   112         if(e==null)

   113             decls.put(n,e=new GElementImpl(n,decl));

   115         e.particles.add(current);

   116         assert current.getTerm()==decl;

   118         return e;

   119     }

   121     public Expression particle(XSParticle p) {

   122         current = p;

   123         Expression e = p.getTerm().apply(this);

   125         if(p.isRepeated())

   126             e = new OneOrMore(e);

   128         if (BigInteger.ZERO.equals(p.getMinOccurs()))

   129             e = new Choice(e,Expression.EPSILON);

   131         return e;

   132     }

   134 }

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