Mercurial > hg4j
view src/org/tmatesoft/hg/internal/EncodingHelper.java @ 450:03fd8d079e9c smartgit3
Share PhasesHelper instance among few HgChangesets (mostly affects HgChangesetTreeHandler case)
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Thu, 07 Jun 2012 17:06:23 +0200 |
parents | 63c5a9d7ca3f |
children | ee8264d80747 |
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/* * Copyright (c) 2011-2012 TMate Software Ltd * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program 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 for more details. * * For information on how to redistribute this software under * the terms of a license other than GNU General Public License * contact TMate Software at support@hg4j.com */ package org.tmatesoft.hg.internal; import java.nio.ByteBuffer; import java.nio.charset.CharacterCodingException; import java.nio.charset.Charset; import java.nio.charset.CharsetDecoder; import java.nio.charset.CharsetEncoder; /** * Keep all encoding-related issues in the single place * @author Artem Tikhomirov * @author TMate Software Ltd. */ public class EncodingHelper { // XXX perhaps, shall not be full of statics, but rather an instance coming from e.g. HgRepository? /* * To understand what Mercurial thinks of UTF-8 and Unix byte approach to names, see * http://mercurial.808500.n3.nabble.com/Unicode-support-request-td3430704.html */ private final CharsetEncoder encoder; private final CharsetDecoder decoder; EncodingHelper(Charset fsEncoding) { decoder = fsEncoding.newDecoder(); encoder = fsEncoding.newEncoder(); } public String fromManifest(byte[] data, int start, int length) { try { return decoder.decode(ByteBuffer.wrap(data, start, length)).toString(); } catch (CharacterCodingException ex) { // resort to system-default return new String(data, start, length); } } public String fromDirstate(byte[] data, int start, int length) throws CharacterCodingException { return decoder.decode(ByteBuffer.wrap(data, start, length)).toString(); } public Charset charset() { return encoder.charset(); } }