Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/util/CaptureInputStream.java @ 1025:2996395e44c9

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Improved the logging of incoming mapviewer call data. gnv/trunk@1279 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 29 Nov 2010 09:20:01 +0000
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1025
2996395e44c9 Improved the logging of incoming mapviewer call data.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.util;
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10
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11 import java.io.FilterInputStream;
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12 import java.io.ByteArrayOutputStream;
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13 import java.io.InputStream;
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14 import java.io.IOException;
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15 import java.io.UnsupportedEncodingException;
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16
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17 /**
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18 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha Teichmann</a>
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19 */
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20 public class CaptureInputStream
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21 extends FilterInputStream
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22 {
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23 protected ByteArrayOutputStream copy;
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24
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25 public CaptureInputStream(InputStream in) {
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26 super(in);
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27 copy = new ByteArrayOutputStream(10*1024);
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28 }
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29
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30 public int read() throws IOException {
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31 int x = in.read();
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32 if (x != -1) {
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33 copy.write(x);
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34 }
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35 return x;
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36 }
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37
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38 public int read(byte [] b, int off, int len) throws IOException {
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39 int r = in.read(b, off, len);
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40 if (r > 0) {
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41 copy.write(b, off, r);
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42 }
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43 return r;
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44 }
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45
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46 public long skip(long n) throws IOException {
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47 long m = in.skip(n);
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48 for (long i = m; i > 0L; --i) { // simulate gab
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49 copy.write(0);
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50 }
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51 return m;
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52 }
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53
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54 public String copyToString() {
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55 return copy.toString();
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56 }
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57
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58 public String copyToString(String charsetName)
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59 throws UnsupportedEncodingException
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60 {
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61 return copy.toString(charsetName);
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62 }
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63
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64 public byte [] toByteArray() {
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65 return copy.toByteArray();
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66 }
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67
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68 public void clear() {
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69 copy.reset();
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70 }
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71 }
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