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121 lines
4.0 KiB
Java
121 lines
4.0 KiB
Java
/*
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* Copyright (c) 2005, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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/*
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******************************************************************************
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* Copyright (C) 2003, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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******************************************************************************
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*
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* Created on May 2, 2003
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*
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* To change the template for this generated file go to
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* Window>Preferences>Java>Code Generation>Code and Comments
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*/
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// CHANGELOG
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// 2005-05-19 Edward Wang
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// - copy this file from icu4jsrc_3_2/src/com/ibm/icu/impl/StringPrepDataReader.java
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// - move from package com.ibm.icu.impl to package sun.net.idn
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//
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package jdk_internal.icu.impl;
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import java.io.DataInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* @author ram
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*
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* To change the template for this generated type comment go to
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* Window>Preferences>Java>Code Generation>Code and Comments
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*/
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public final class StringPrepDataReader implements ICUBinary.Authenticate {
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/**
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* <p>
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* private constructor.
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* </p>
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*
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* @param inputStream ICU uprop.dat file input stream
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* @exception IOException throw if data file fails authentication
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* @draft 2.1
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*/
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public StringPrepDataReader(InputStream inputStream) throws IOException {
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unicodeVersion = ICUBinary.readHeader(inputStream, DATA_FORMAT_ID, this);
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dataInputStream = new DataInputStream(inputStream);
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}
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public void read(byte[] idnaBytes, char[] mappingTable) throws IOException {
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// Read the bytes that make up the idnaTrie
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dataInputStream.read(idnaBytes);
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// Read the extra data
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for (int i = 0; i < mappingTable.length; i++) {
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mappingTable[i] = dataInputStream.readChar();
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}
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}
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public byte[] getDataFormatVersion() {
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return DATA_FORMAT_VERSION;
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}
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public boolean isDataVersionAcceptable(byte version[]) {
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return version[0] == DATA_FORMAT_VERSION[0] && version[2] == DATA_FORMAT_VERSION[2]
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&& version[3] == DATA_FORMAT_VERSION[3];
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}
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public int[] readIndexes(int length) throws IOException {
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int[] indexes = new int[length];
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// Read the indexes
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for (int i = 0; i < length; i++) {
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indexes[i] = dataInputStream.readInt();
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}
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return indexes;
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}
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public byte[] getUnicodeVersion() {
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return unicodeVersion;
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}
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// private data members -------------------------------------------------
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/**
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* ICU data file input stream
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*/
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private DataInputStream dataInputStream;
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private byte[] unicodeVersion;
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/**
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* File format version that this class understands. No guarantees are made if a
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* older version is used see store.c of gennorm for more information and values
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*/
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/// * dataFormat="SPRP" 0x53, 0x50, 0x52, 0x50 */
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private static final byte DATA_FORMAT_ID[] = { (byte) 0x53, (byte) 0x50, (byte) 0x52, (byte) 0x50 };
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private static final byte DATA_FORMAT_VERSION[] = { (byte) 0x3, (byte) 0x2, (byte) 0x5, (byte) 0x2 };
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}
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