| /* IconvEncoder.java -- |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.java.nio.charset.iconv; |
| |
| import gnu.classpath.Pointer; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CharsetEncoder; |
| import java.nio.charset.CoderResult; |
| |
| final class IconvEncoder extends CharsetEncoder |
| { |
| private Pointer data; |
| private int inremaining; |
| private int outremaining; |
| |
| private native void openIconv(String name); |
| |
| private native int encode(char[] in, byte[] out, int posIn, int remIn, |
| int posOut, int remOut); |
| |
| private native void closeIconv(); |
| |
| IconvEncoder(Charset cs, IconvMetaData info) |
| { |
| super(cs, info.averageBytesPerChar(), info.maxBytesPerChar()); |
| openIconv(info.iconvName()); |
| } |
| |
| protected CoderResult encodeLoop(CharBuffer in, ByteBuffer out) |
| { |
| int inPos = in.position(); |
| int outPos = out.position(); |
| int remIn = in.remaining(); |
| int remOut = out.remaining(); |
| char[] inArr; |
| int ret; |
| |
| if (in.hasArray()) |
| inArr = in.array(); |
| else |
| { |
| inArr = new char[remIn]; |
| in.get(inArr); |
| } |
| |
| if (out.hasArray()) |
| { |
| ret = encode(inArr, out.array(), inPos, remIn, outPos, remOut); |
| out.position(outPos + (remOut - outremaining)); |
| } |
| else |
| { |
| byte[] outArr = new byte[remOut]; |
| ret = encode(inArr, outArr, inPos, remIn, outPos, remOut); |
| out.put(outArr, 0, (remOut - outremaining)); |
| } |
| in.position(inPos + (remIn - inremaining)); |
| |
| if (ret == 1) |
| return CoderResult.malformedForLength(1); |
| |
| if (in.remaining() == 0) |
| return CoderResult.UNDERFLOW; |
| return CoderResult.OVERFLOW; |
| } |
| |
| protected void finalize() |
| { |
| closeIconv(); |
| } |
| } |