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 * reserved comment block

 * DO NOT REMOVE OR ALTER!

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/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You 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.

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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;

import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;

import com.sun.org.apache.xerces.internal.impl.dv.util.ByteListImpl;

/**

 * Represent the schema type "base64Binary"

 *

 * @xerces.internal

 *

 * @author Neeraj Bajaj, Sun Microsystems, inc.

 * @author Sandy Gao, IBM

 *

 */

public class Base64BinaryDV extends TypeValidator {

    public short getAllowedFacets(){

        return (XSSimpleTypeDecl.FACET_LENGTH | XSSimpleTypeDecl.FACET_MINLENGTH | XSSimpleTypeDecl.FACET_MAXLENGTH | XSSimpleTypeDecl.FACET_PATTERN | XSSimpleTypeDecl.FACET_ENUMERATION | XSSimpleTypeDecl.FACET_WHITESPACE );

    }

    public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {

        byte[] decoded = Base64.decode(content);

        if (decoded == null)

            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "base64Binary"});

        return new XBase64(decoded);

    }

    // length of a binary type is the number of bytes

    public int getDataLength(Object value) {

        return ((XBase64)value).getLength();

    }

    /**

     * represent base64 data

     */

    private static final class XBase64 extends ByteListImpl {

        public XBase64(byte[] data) {

            super(data);

        }

        public synchronized String toString() {

            if (canonical == null) {

                canonical = Base64.encode(data);

            }

            return canonical;

        }

        public boolean equals(Object obj) {

            if (!(obj instanceof XBase64))

                return false;

            byte[] odata = ((XBase64)obj).data;

            int len = data.length;

            if (len != odata.length)

                return false;

            for (int i = 0; i < len; i++) {

                if (data[i] != odata[i])

                    return false;

            }

            return true;

        }

        public int hashCode() {

            int hash = 0;

            for (int i = 0; i < data.length; ++i) {

                hash = hash * 37 + (((int) data[i]) & 0xff);

            }

            return hash;

        }

    }

} // class Base64BinaryDV