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International Component for Unicode for Java (ICU4J) is a mature, widely used Java library providing Unicode and Globalization support

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/*
 ******************************************************************************
 * Copyright (C) 2003-2014, International Business Machines Corporation and
 * others. All Rights Reserved.
 ******************************************************************************
 *
 * Created on May 2, 2003
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */

package com.ibm.icu.impl;

import java.io.IOException;
import java.nio.ByteBuffer;


/**
 * @author ram
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public final class StringPrepDataReader implements ICUBinary.Authenticate {
    private final static boolean debug = ICUDebug.enabled("NormalizerDataReader");

   /**
    * private constructor.
    * @param bytes ICU StringPrep data file buffer
    * @exception IOException throw if data file fails authentication
    */
    public StringPrepDataReader(ByteBuffer bytes)
                                        throws IOException{
        if(debug) System.out.println("Bytes in buffer " + bytes.remaining());

        byteBuffer = bytes;
        unicodeVersion = ICUBinary.readHeader(byteBuffer, DATA_FORMAT_ID, this);

        if(debug) System.out.println("Bytes left in byteBuffer " + byteBuffer.remaining());
    }

    public void read(char[] mappingTable) throws IOException{
        //Read the extra data
        for(int i=0;i