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annotate src/main/java/com/glavsoft/rfb/encoding/decoder/DecodersContainer.java @ 0:4689cc86d6cb

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create TreeViewer2 Repository
author Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
date Tue, 03 Jul 2012 13:20:49 +0900
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children e7ce2b2ffed8 17b702648079
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1 // Copyright (C) 2010, 2011 GlavSoft LLC.
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25
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26 package com.glavsoft.rfb.encoding.decoder;
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27
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28 import com.glavsoft.rfb.encoding.EncodingType;
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29
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30 import java.util.Collection;
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31 import java.util.HashMap;
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32 import java.util.Map;
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33 import java.util.logging.Logger;
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34
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Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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35 /**
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36 * Decoders container class
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37 */
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38 public class DecodersContainer {
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39 private static Map<EncodingType, Class<? extends Decoder>> knownDecoders =
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40 new HashMap<EncodingType, Class<? extends Decoder>>();
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41 static {
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42 knownDecoders.put(EncodingType.TIGHT, TightDecoder.class);
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43 knownDecoders.put(EncodingType.HEXTILE, HextileDecoder.class);
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44 knownDecoders.put(EncodingType.ZRLE, ZRLEDecoder.class);
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45 knownDecoders.put(EncodingType.ZLIB, ZlibDecoder.class);
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46 knownDecoders.put(EncodingType.RRE, RREDecoder.class);
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47 knownDecoders.put(EncodingType.COPY_RECT, CopyRectDecoder.class);
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48 // knownDecoders.put(EncodingType.RAW_ENCODING, RawDecoder.class);
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49 }
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50 private final Map<EncodingType, Decoder> decoders =
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51 new HashMap<EncodingType, Decoder>();
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52
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53 public DecodersContainer() {
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54 decoders.put(EncodingType.RAW_ENCODING, RawDecoder.getInstance());
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55 }
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56
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57 /**
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58 * Instantiate decoders for encodings we are going to use.
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59 *
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60 * @param encodings encodings we need to handle
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61 */
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62 public void instantiateDecodersWhenNeeded(Collection<EncodingType> encodings) {
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63 for (EncodingType enc : encodings) {
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64 if (EncodingType.ordinaryEncodings.contains(enc) && ! decoders.containsKey(enc)) {
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65 try {
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66 decoders.put(enc, knownDecoders.get(enc).newInstance());
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67 } catch (InstantiationException e) {
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68 logError(enc, e);
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69 } catch (IllegalAccessException e) {
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70 logError(enc, e);
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71 }
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72 }
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73 }
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74 }
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75
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76 private void logError(EncodingType enc, Exception e) {
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77 Logger.getLogger(this.getClass().getName()).severe("Can not instantiate decoder for encoding type '" +
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78 enc.getName() + "' " + e.getMessage());
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79 }
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80
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81 public Decoder getDecoderByType(EncodingType type) {
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82 return decoders.get(type);
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83 }
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84
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85 public void resetDecoders() {
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86 for (Decoder decoder : decoders.values()) {
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87 if (decoder != null) {
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88 decoder.reset();
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89 }
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90 }
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91 }
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92
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93 }