| 1 | /* StreamInputStream.java -- |
| 2 | Copyright (C) 2003, 2004 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Classpath. |
| 5 | |
| 6 | GNU Classpath is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Classpath is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Classpath; see the file COPYING. If not, write to the |
| 18 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | 02110-1301 USA. |
| 20 | |
| 21 | Linking this library statically or dynamically with other modules is |
| 22 | making a combined work based on this library. Thus, the terms and |
| 23 | conditions of the GNU General Public License cover the whole |
| 24 | combination. |
| 25 | |
| 26 | As a special exception, the copyright holders of this library give you |
| 27 | permission to link this library with independent modules to produce an |
| 28 | executable, regardless of the license terms of these independent |
| 29 | modules, and to copy and distribute the resulting executable under |
| 30 | terms of your choice, provided that you also meet, for each linked |
| 31 | independent module, the terms and conditions of the license of that |
| 32 | module. An independent module is a module which is not derived from |
| 33 | or based on this library. If you modify this library, you may extend |
| 34 | this exception to your version of the library, but you are not |
| 35 | obligated to do so. If you do not wish to do so, delete this |
| 36 | exception statement from your version. */ |
| 37 | |
| 38 | |
| 39 | package gnu.java.net.protocol.ftp; |
| 40 | |
| 41 | import java.io.IOException; |
| 42 | import java.io.InputStream; |
| 43 | |
| 44 | /** |
| 45 | * A DTP input stream that implements the FTP stream data transfer mode. |
| 46 | * |
| 47 | * @author Chris Burdess (dog@gnu.org) |
| 48 | */ |
| 49 | class StreamInputStream |
| 50 | extends DTPInputStream |
| 51 | { |
| 52 | |
| 53 | StreamInputStream(DTP dtp, InputStream in) |
| 54 | { |
| 55 | super(dtp, in); |
| 56 | } |
| 57 | |
| 58 | public int read() |
| 59 | throws IOException |
| 60 | { |
| 61 | if (transferComplete) |
| 62 | { |
| 63 | return -1; |
| 64 | } |
| 65 | int c = in.read(); |
| 66 | if (c == -1) |
| 67 | { |
| 68 | close(); |
| 69 | } |
| 70 | return c; |
| 71 | } |
| 72 | |
| 73 | public int read(byte[] buf) |
| 74 | throws IOException |
| 75 | { |
| 76 | return read(buf, 0, buf.length); |
| 77 | } |
| 78 | |
| 79 | public int read(byte[] buf, int off, int len) |
| 80 | throws IOException |
| 81 | { |
| 82 | if (transferComplete) |
| 83 | { |
| 84 | return -1; |
| 85 | } |
| 86 | int l = in.read(buf, off, len); |
| 87 | if (l == -1) |
| 88 | { |
| 89 | close(); |
| 90 | } |
| 91 | return l; |
| 92 | } |
| 93 | |
| 94 | } |
| 95 | |