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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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/*

 * Copyright (C) 2004-2011

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

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 * THE SOFTWARE.

 */

package com.sun.xml.internal.rngom.digested;

import com.sun.xml.internal.rngom.ast.builder.Annotations;

import com.sun.xml.internal.rngom.ast.builder.BuildException;

import com.sun.xml.internal.rngom.ast.builder.Include;

import com.sun.xml.internal.rngom.ast.builder.IncludedGrammar;

import com.sun.xml.internal.rngom.ast.builder.Scope;

import com.sun.xml.internal.rngom.ast.om.Location;

import com.sun.xml.internal.rngom.ast.om.ParsedPattern;

import com.sun.xml.internal.rngom.parse.IllegalSchemaException;

import com.sun.xml.internal.rngom.parse.Parseable;

import java.util.HashSet;

import java.util.Set;

/**

 * @author Kohsuke Kawaguchi (kk@kohsuke.org)

 */

final class IncludeImpl extends GrammarBuilderImpl implements Include {

    private Set overridenPatterns = new HashSet();

    private boolean startOverriden = false;

    public IncludeImpl(DGrammarPattern p, Scope parent, DSchemaBuilderImpl sb) {

        super(p, parent, sb);

    }

    @Override

    public void define(String name, Combine combine, ParsedPattern pattern, Location loc, Annotations anno) throws BuildException {

        super.define(name, combine, pattern, loc, anno);

        if(name==START)

            startOverriden = true;

        else

            overridenPatterns.add(name);

    }

    public void endInclude(Parseable current, String uri, String ns, Location loc, Annotations anno) throws BuildException, IllegalSchemaException {

        current.parseInclude(uri,sb,new IncludedGrammarImpl(grammar,parent,sb),ns);

    }

    private class IncludedGrammarImpl extends GrammarBuilderImpl implements IncludedGrammar {

        public IncludedGrammarImpl(DGrammarPattern p, Scope parent, DSchemaBuilderImpl sb) {

            super(p, parent, sb);

        }

        @Override

        public void define(String name, Combine combine, ParsedPattern pattern, Location loc, Annotations anno) throws BuildException {

            // check for overridden pattern

            if(name==START) {

                if(startOverriden)

                    return;

            } else {

                if(overridenPatterns.contains(name))

                    return;

            }

            // otherwise define

            super.define(name, combine, pattern, loc, anno);

        }

        public ParsedPattern endIncludedGrammar(Location loc, Annotations anno) throws BuildException {

            return null;

        }

    }

}