/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 * 
 * You can obtain a copy of the license at
 * https://jwsdp.dev.java.net/CDDLv1.0.html
 * See the License for the specific language governing
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
 * add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your
 * own identifying information: Portions Copyright [yyyy]
 * [name of copyright owner]
 */
package com.sun.xml.xsom.impl;

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.XSTerm;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.impl.parser.SchemaDocumentImpl;
import com.sun.xml.xsom.visitor.XSFunction;
import com.sun.xml.xsom.visitor.XSTermFunction;
import com.sun.xml.xsom.visitor.XSTermFunctionWithParam;
import com.sun.xml.xsom.visitor.XSTermVisitor;
import com.sun.xml.xsom.visitor.XSVisitor;
import org.xml.sax.Locator;

import java.util.Arrays;
import java.util.Iterator;

public class ModelGroupImpl extends ComponentImpl implements XSModelGroup, Ref.Term
{
    public ModelGroupImpl( SchemaDocumentImpl owner, AnnotationImpl _annon, Locator _loc, ForeignAttributesImpl _fa,
                           Compositor _compositor, ParticleImpl[] _children ) {

        super(owner,_annon,_loc,_fa);
        this.compositor = _compositor;
        this.children = _children;

        if(compositor==null)
            throw new IllegalArgumentException();
        for( int i=children.length-1; i>=0; i-- )
            if(children[i]==null)
                throw new IllegalArgumentException();
    }

    private final ParticleImpl[] children;
    public ParticleImpl getChild( int idx ) { return children[idx]; }
    public int getSize() { return children.length; }

    public ParticleImpl[] getChildren() { return children; }


    private final Compositor compositor;
    public Compositor getCompositor() { return compositor; }


    public void redefine(ModelGroupDeclImpl oldMG) {
        for (ParticleImpl p : children)
            p.redefine(oldMG);
    }

    public Iterator<XSParticle> iterator() {
        return Arrays.asList((XSParticle[])children).iterator();
    }


    public boolean isWildcard()                 { return false; }
    public boolean isModelGroupDecl()           { return false; }
    public boolean isModelGroup()               { return true; }
    public boolean isElementDecl()              { return false; }

    public XSWildcard asWildcard()              { return null; }
    public XSModelGroupDecl asModelGroupDecl()  { return null; }
    public XSModelGroup asModelGroup()          { return this; }
    public XSElementDecl asElementDecl()        { return null; }



    public void visit( XSVisitor visitor ) {
        visitor.modelGroup(this);
    }
    public void visit( XSTermVisitor visitor ) {
        visitor.modelGroup(this);
    }
    public Object apply( XSTermFunction function ) {
        return function.modelGroup(this);
    }

    public <T,P> T apply(XSTermFunctionWithParam<T, P> function, P param) {
        return function.modelGroup(this,param);
    }

    public Object apply( XSFunction function ) {
        return function.modelGroup(this);
    }

    // Ref.Term implementation
    public XSTerm getTerm() { return this; }
}