jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ct/AbstractExtendedComplexTypeBuilder.java@373ffda63c9a (annotated)

src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ct/AbstractExtendedComplexTypeBuilder.java@373ffda63c9a (annotated)

src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ct/AbstractExtendedComplexTypeBuilder.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

 /*
  * 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.tools.internal.xjc.reader.xmlschema.ct;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import com.sun.tools.internal.xjc.reader.xmlschema.WildcardNameClassBuilder;
 import com.sun.xml.internal.xsom.XSAttributeUse;
 import com.sun.xml.internal.xsom.XSComplexType;
 import com.sun.xml.internal.xsom.XSContentType;
 import com.sun.xml.internal.xsom.XSDeclaration;
 import com.sun.xml.internal.xsom.XSElementDecl;
 import com.sun.xml.internal.xsom.XSModelGroup;
 import com.sun.xml.internal.xsom.XSModelGroupDecl;
 import com.sun.xml.internal.xsom.XSParticle;
 import com.sun.xml.internal.xsom.XSType;
 import com.sun.xml.internal.xsom.XSWildcard;
 import com.sun.xml.internal.xsom.visitor.XSTermFunction;
 import javax.xml.namespace.QName;
 import com.sun.xml.internal.rngom.nc.ChoiceNameClass;
 import com.sun.xml.internal.rngom.nc.NameClass;
 import com.sun.xml.internal.rngom.nc.SimpleNameClass;
 /**
  * Binds a complex type derived from another complex type by extension.
  *
  * @author
  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
  */
 abstract class AbstractExtendedComplexTypeBuilder extends CTBuilder {
     /**
      * Map from {@link XSComplexType} to {@link NameClass}[2] that
      * represents the names used in its child elements [0] and
      * attributes [1].
      */
     protected final Map<XSComplexType, NameClass[]> characteristicNameClasses = new HashMap<XSComplexType, NameClass[]>();
     /**
      * Computes a name class that represents everything in a given content model.
      */
     protected final XSTermFunction<NameClass> contentModelNameClassBuilder = new XSTermFunction<NameClass>() {
         @Override
         public NameClass wildcard(XSWildcard wc) {
             return WildcardNameClassBuilder.build(wc);
         }
         @Override
         public NameClass modelGroupDecl(XSModelGroupDecl decl) {
             return modelGroup(decl.getModelGroup());
         }
         @Override
         public NameClass modelGroup(XSModelGroup group) {
             NameClass nc = NameClass.NULL;
             for( int i=0; i<group.getSize(); i++ )
                 nc = new ChoiceNameClass(nc, group.getChild(i).getTerm().apply(this));
             return nc;
         }
         public NameClass elementDecl(XSElementDecl decl) {
             return getNameClass(decl);
         }
     };
     /**
      * Checks if the particles/attributes defined in the type parameter
      * collides with the name classes of anc/enc.
      *
      * @return true if there's a collision.
      */
     protected boolean checkCollision(NameClass anc, NameClass enc, XSComplexType type) {
         NameClass[] chnc = characteristicNameClasses.get(type);
         if (chnc == null) {
             chnc = new NameClass[2];
             chnc[0] = getNameClass(type.getContentType());
             // build attribute name classes
             NameClass nc = NameClass.NULL;
             Iterator itr = type.iterateAttributeUses();
             while( itr.hasNext() )
                 anc = new ChoiceNameClass(anc, getNameClass(((XSAttributeUse) itr.next()).getDecl()));
             XSWildcard wc = type.getAttributeWildcard();
             if(wc!=null)
                 nc = new ChoiceNameClass(nc, WildcardNameClassBuilder.build(wc));
             chnc[1] = nc;
             characteristicNameClasses.put(type, chnc);
         }
         return chnc[0].hasOverlapWith(enc) || chnc[1].hasOverlapWith(anc);
     }
     /**
      * Looks for the derivation chain t_1 > t_2 > ... > t
      * and find t_i such that t_i derives by restriction but
      * for every j>i, t_j derives by extension.
      *
      * @return null
      *      If there's no such t_i or if t_i is any type.
      */
     protected XSComplexType getLastRestrictedType(XSComplexType t) {
         if (t.getBaseType() == schemas.getAnyType()) {
             return null;   // we don't count the restriction from anyType
         }
         if (t.getDerivationMethod() == XSType.RESTRICTION) {
             return t;
         }
         XSComplexType baseType = t.getBaseType().asComplexType();
         if (baseType != null) {
             return getLastRestrictedType(baseType);
         } else {
             return null;
         }
     }
     /**
      * Checks if this new extension is safe.
      *
      * UGLY.
      * <p>
      * If you have ctA extending ctB and ctB restricting ctC, our
      * Java classes will look like CtAImpl extending CtBImpl
      * extending CtCImpl.
      *
      * <p>
      * Since a derived class unmarshaller uses the base class unmarshaller,
      * this could potentially result in incorrect unmarshalling.
      * We used to just reject such a case, but then we found that
      * there are schemas that are using it.
      *
      * <p>
      * One generalized observation that we reached is that if the extension
      * is only adding new elements/attributes which has never been used
      * in any of its base class (IOW, if none of the particle / attribute use /
      * attribute wildcard can match the name of newly added elements/attributes)
      * then it is safe to add them.
      *
      * <p>
      * This function checks if the derivation chain to this type is
      * not using restriction, and if it is, then checks if it is safe
      * according to the above condition.
      *
      * @return false
      *      If this complex type needs to be rejected.
      */
     protected boolean checkIfExtensionSafe(XSComplexType baseType, XSComplexType thisType) {
         XSComplexType lastType = getLastRestrictedType(baseType);
         if (lastType == null) {
             return true;    // no restriction in derivation chain
         }
         NameClass anc = NameClass.NULL;
         // build name class for attributes in new complex type
         Iterator itr = thisType.iterateDeclaredAttributeUses();
         while (itr.hasNext()) {
             anc = new ChoiceNameClass(anc, getNameClass(((XSAttributeUse) itr.next()).getDecl()));
         }
         // TODO: attribute wildcard
         NameClass enc = getNameClass(thisType.getExplicitContent());
         // check against every base type ... except the root anyType
         while (lastType != lastType.getBaseType()) {
             if (checkCollision(anc, enc, lastType)) {
                 return false;
             }
             if (lastType.getBaseType().isSimpleType()) // if the base type is a simple type, there won't be
             // any further name collision.
             {
                 return true;
             }
             lastType = lastType.getBaseType().asComplexType();
         }
         return true;    // OK
     }
     /**
      * Gets a {@link NameClass} that represents all the terms in the given content type.
      * If t is not a particle, just return an empty name class.
      */
     private NameClass getNameClass(XSContentType t) {
         if(t==null) return NameClass.NULL;
         XSParticle p = t.asParticle();
         if(p==null) return NameClass.NULL;
         else        return p.getTerm().apply(contentModelNameClassBuilder);
     }
     /**
      * Gets a {@link SimpleNameClass} from the name of a {@link XSDeclaration}.
      */
     private NameClass getNameClass(XSDeclaration decl) {
         return new SimpleNameClass(new QName(decl.getTargetNamespace(), decl.getName()));
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ct/AbstractExtendedComplexTypeBuilder.java@373ffda63c9a (annotated)

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