/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.tools.xjc.reader.xmlschema;
import java.math.BigInteger;
import com.sun.tools.xjc.model.Multiplicity;
import com.sun.xml.xsom.XSElementDecl;
import com.sun.xml.xsom.XSModelGroup;
import com.sun.xml.xsom.XSModelGroupDecl;
import com.sun.xml.xsom.XSParticle;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.visitor.XSTermFunction;
import static com.sun.tools.xjc.model.Multiplicity.ONE;
import static com.sun.tools.xjc.model.Multiplicity.ZERO;
/**
* Counts {@link Multiplicity} for a particle/term.
*
* @author Kohsuke Kawaguchi
*/
public final class MultiplicityCounter implements XSTermFunction<Multiplicity> {
public static final MultiplicityCounter theInstance = new MultiplicityCounter();
private MultiplicityCounter() {}
public Multiplicity particle( XSParticle p ) {
Multiplicity m = p.getTerm().apply(this);
BigInteger max;
if (m.max==null || (BigInteger.valueOf(XSParticle.UNBOUNDED).equals(p.getMaxOccurs())))
max=null;
else
max=p.getMaxOccurs();
return Multiplicity.multiply( m, Multiplicity.create(p.getMinOccurs(),max) );
}
public Multiplicity wildcard(XSWildcard wc) {
return ONE;
}
public Multiplicity modelGroupDecl(XSModelGroupDecl decl) {
return modelGroup(decl.getModelGroup());
}
public Multiplicity modelGroup(XSModelGroup group) {
boolean isChoice = group.getCompositor() == XSModelGroup.CHOICE;
Multiplicity r = ZERO;
for( XSParticle p : group.getChildren()) {
Multiplicity m = particle(p);
if(r==null) {
r=m;
continue;
}
if(isChoice) {
r = Multiplicity.choice(r,m);
} else {
r = Multiplicity.group(r,m);
}
}
return r;
}
public Multiplicity elementDecl(XSElementDecl decl) {
return ONE;
}
}