/*
 * Copyright 2001, 2002,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.impl.dv.xs;

import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;

/**
 * Represent the schema type "boolean"
 * 
 * @xerces.internal 
 *
 * @author Neeraj Bajaj, Sun Microsystems, inc.
 * @author Sandy Gao, IBM
 *
 * @version $Id: BooleanDV.java,v 1.2.6.1 2005/09/06 11:43:01 neerajbj Exp $
 */
public class BooleanDV extends TypeValidator{

    private static final String fValueSpace[] = {"false", "true", "0", "1"};

    public short getAllowedFacets(){
        return (XSSimpleTypeDecl.FACET_PATTERN | XSSimpleTypeDecl.FACET_WHITESPACE);
    }

    public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
        Boolean ret = null;

        if (content.equals(fValueSpace[0]) || content.equals(fValueSpace[2]))
            ret = Boolean.FALSE;
        else if (content.equals(fValueSpace[1]) || content.equals(fValueSpace[3]))
            ret = Boolean.TRUE;
        else
            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "boolean"});
        return ret;
    }

} // class BooleanDV