/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
/*
******************************************************************************
* Copyright (C) 2003, 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
*/
// CHANGELOG
// 2005-05-19 Edward Wang
// - copy this file from icu4jsrc_3_2/src/com/ibm/icu/impl/StringPrepDataReader.java
// - move from package com.ibm.icu.impl to package sun.net.idn
//
package sun.net.idn;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import sun.text.normalizer.ICUBinary;
/**
* @author ram
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
final class StringPrepDataReader implements ICUBinary.Authenticate {
/**
* <p>private constructor.</p>
* @param inputStream ICU uprop.dat file input stream
* @exception IOException throw if data file fails authentication
* @draft 2.1
*/
public StringPrepDataReader(InputStream inputStream)
throws IOException{
unicodeVersion = ICUBinary.readHeader(inputStream, DATA_FORMAT_ID, this);
dataInputStream = new DataInputStream(inputStream);
}
public void read(byte[] idnaBytes,
char[] mappingTable)
throws IOException{
//Read the bytes that make up the idnaTrie
dataInputStream.read(idnaBytes);
//Read the extra data
for(int i=0;i<mappingTable.length;i++){
mappingTable[i]=dataInputStream.readChar();
}
}
public byte[] getDataFormatVersion(){
return DATA_FORMAT_VERSION;
}
public boolean isDataVersionAcceptable(byte version[]){
return version[0] == DATA_FORMAT_VERSION[0]
&& version[2] == DATA_FORMAT_VERSION[2]
&& version[3] == DATA_FORMAT_VERSION[3];
}
public int[] readIndexes(int length)throws IOException{
int[] indexes = new int[length];
//Read the indexes
for (int i = 0; i <length ; i++) {
indexes[i] = dataInputStream.readInt();
}
return indexes;
}
public byte[] getUnicodeVersion(){
return unicodeVersion;
}
// private data members -------------------------------------------------
/**
* ICU data file input stream
*/
private DataInputStream dataInputStream;
private byte[] unicodeVersion;
/**
* File format version that this class understands.
* No guarantees are made if a older version is used
* see store.c of gennorm for more information and values
*/
///* dataFormat="SPRP" 0x53, 0x50, 0x52, 0x50 */
private static final byte DATA_FORMAT_ID[] = {(byte)0x53, (byte)0x50,
(byte)0x52, (byte)0x50};
private static final byte DATA_FORMAT_VERSION[] = {(byte)0x3, (byte)0x2,
(byte)0x5, (byte)0x2};
}