aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.tools.internal.xjc.reader.xmlschema;
aoqi@0: 
aoqi@0: import java.util.Collection;
aoqi@0: 
aoqi@0: import com.sun.tools.internal.xjc.model.CPropertyInfo;
aoqi@0: import com.sun.tools.internal.xjc.model.Multiplicity;
aoqi@0: import com.sun.tools.internal.xjc.reader.RawTypeSet;
aoqi@0: import com.sun.tools.internal.xjc.reader.gbind.ConnectedComponent;
aoqi@0: import com.sun.tools.internal.xjc.reader.gbind.Element;
aoqi@0: import com.sun.tools.internal.xjc.reader.gbind.Expression;
aoqi@0: import com.sun.tools.internal.xjc.reader.gbind.Graph;
aoqi@0: import com.sun.tools.internal.xjc.reader.xmlschema.bindinfo.BIProperty;
aoqi@0: import com.sun.xml.internal.bind.v2.model.core.WildcardMode;
aoqi@0: import com.sun.xml.internal.xsom.XSParticle;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * {@link ParticleBinder} that uses {@link ExpressionBuilder} et al
aoqi@0:  * for better, more intuitive (but non spec-conforming) binding.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi
aoqi@0:  */
aoqi@0: final class ExpressionParticleBinder extends ParticleBinder {
aoqi@0:     public void build(XSParticle p, Collection<XSParticle> forcedProps) {
aoqi@0:         // this class isn't about spec conformance, but
aoqi@0:         // for the ease of use.
aoqi@0:         // so we don't give a damn about 'forcedProps'.
aoqi@0:         // although, for a future note, it's conceivable to expand
aoqi@0:         // the binding algorithm to cover this notion.
aoqi@0: 
aoqi@0:         Expression tree = ExpressionBuilder.createTree(p);
aoqi@0:         Graph g = new Graph(tree);
aoqi@0:         for (ConnectedComponent cc : g) {
aoqi@0:             buildProperty(cc);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Builds a property ouf ot a connected component.
aoqi@0:      */
aoqi@0:     private void buildProperty(ConnectedComponent cc) {
aoqi@0:         StringBuilder propName = new StringBuilder(); // property name
aoqi@0:         int nameTokenCount = 0; // combine only up to 3
aoqi@0: 
aoqi@0:         RawTypeSetBuilder rtsb = new RawTypeSetBuilder();
aoqi@0:         for (Element e : cc) {
aoqi@0:             GElement ge = (GElement)e;
aoqi@0: 
aoqi@0:             if(nameTokenCount<3) {
aoqi@0:                 if(nameTokenCount!=0)
aoqi@0:                     propName.append("And");
aoqi@0:                 propName.append(makeJavaName(cc.isCollection(),ge.getPropertyNameSeed()));
aoqi@0:                 nameTokenCount++;
aoqi@0:             }
aoqi@0: 
aoqi@0:             if(e instanceof GElementImpl) {
aoqi@0:                 GElementImpl ei = (GElementImpl) e;
aoqi@0:                 rtsb.elementDecl(ei.decl);
aoqi@0:                 continue;
aoqi@0:             }
aoqi@0:             if(e instanceof GWildcardElement) {
aoqi@0:                 GWildcardElement w = (GWildcardElement)e;
aoqi@0:                 rtsb.getRefs().add(new RawTypeSetBuilder.WildcardRef(
aoqi@0:                     w.isStrict() ? WildcardMode.STRICT : WildcardMode.SKIP));
aoqi@0:                 continue;
aoqi@0:             }
aoqi@0:             assert false : e;   // no other kind should be here
aoqi@0:         }
aoqi@0: 
aoqi@0:         Multiplicity m = Multiplicity.ONE;
aoqi@0:         if(cc.isCollection())
aoqi@0:             m = m.makeRepeated();
aoqi@0:         if(!cc.isRequired())
aoqi@0:             m = m.makeOptional();
aoqi@0: 
aoqi@0:         RawTypeSet rts = new RawTypeSet(rtsb.getRefs(),m);
aoqi@0: 
aoqi@0:         XSParticle p = findSourceParticle(cc);
aoqi@0: 
aoqi@0:         BIProperty cust = BIProperty.getCustomization(p);
aoqi@0:         CPropertyInfo prop = cust.createElementOrReferenceProperty(
aoqi@0:             propName.toString(), false, p, rts );
aoqi@0:         getCurrentBean().addProperty(prop);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Finds a {@link XSParticle} that can serve as the representative property of
aoqi@0:      * the given {@link ConnectedComponent}.
aoqi@0:      *
aoqi@0:      * The representative property is used for reporting an error location and
aoqi@0:      * taking {@link BIProperty} customization. Right now, the algorithm is just pick
aoqi@0:      * the first one with {@link BIProperty}, but one can think of a better algorithm,
aoqi@0:      * such as taking a choice of (A|B) if CC={A,B}.
aoqi@0:      */
aoqi@0:     private XSParticle findSourceParticle(ConnectedComponent cc) {
aoqi@0:         XSParticle first = null;
aoqi@0: 
aoqi@0:         for (Element e : cc) {
aoqi@0:             GElement ge = (GElement)e;
aoqi@0:             for (XSParticle p : ge.particles) {
aoqi@0:                 if(first==null)
aoqi@0:                     first = p;
aoqi@0:                 if(getLocalPropCustomization(p)!=null)
aoqi@0:                     return p;
aoqi@0:             }
aoqi@0:             // if there are multiple property customizations,
aoqi@0:             // all but one will be left unused, which will be detected as an error
aoqi@0:             // later, so no need to check that now.
aoqi@0:         }
aoqi@0: 
aoqi@0:         // if no customization was found, just use the first one.
aoqi@0:         return first;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public boolean checkFallback(XSParticle p) {
aoqi@0:         // this algorithm never falls back to 'getContent'.
aoqi@0:         return false;
aoqi@0:     }
aoqi@0: }