jdk8-mips64-public/jaxws: comparison src/share/jaxws_classes/com/sun/tools/internal/xjc/reader/xmlschema/ct/AbstractExtendedComplexTypeBuilder.java

--1:000000000000
+:373ffda63c9a
+/*
+* 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 / file comparison

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

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