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1 package com.trilead.ssh2.channel;
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2
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3 import java.io.IOException;
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4 import java.io.OutputStream;
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5
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6 /**
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7 * ChannelOutputStream.
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8 *
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9 * @author Christian Plattner, plattner@trilead.com
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10 * @version $Id: ChannelOutputStream.java,v 1.1 2007/10/15 12:49:56 cplattne Exp $
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11 */
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12 public final class ChannelOutputStream extends OutputStream {
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13 Channel c;
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14
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15 private byte[] writeBuffer;
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16
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17 boolean isClosed = false;
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18
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19 ChannelOutputStream(Channel c) {
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20 this.c = c;
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21 writeBuffer = new byte[1];
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22 }
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23
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24 public void write(int b) throws IOException {
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25 writeBuffer[0] = (byte) b;
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26 write(writeBuffer, 0, 1);
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27 }
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28
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29 public void close() throws IOException {
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30 if (isClosed == false) {
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31 isClosed = true;
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32 c.cm.sendEOF(c);
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33 }
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34 }
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35
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36 public void flush() throws IOException {
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37 if (isClosed)
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38 throw new IOException("This OutputStream is closed.");
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39
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40 /* This is a no-op, since this stream is unbuffered */
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41 }
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42
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43 public void write(byte[] b, int off, int len) throws IOException {
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44 if (isClosed)
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45 throw new IOException("This OutputStream is closed.");
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46
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47 if (b == null)
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48 throw new NullPointerException();
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49
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50 if ((off < 0) || (len < 0) || ((off + len) > b.length) || ((off + len) < 0) || (off > b.length))
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51 throw new IndexOutOfBoundsException();
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52
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53 if (len == 0)
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54 return;
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55
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56 c.cm.sendData(c, b, off, len);
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57 }
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58
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59 public void write(byte[] b) throws IOException {
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60 write(b, 0, b.length);
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61 }
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62 }
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