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annotate src/ch/ethz/ssh2/compression/CompressionFactory.java @ 307:071eccdff8ea ganymed

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fix java formatting
author Carl Byington <carl@five-ten-sg.com>
date Wed, 30 Jul 2014 14:16:58 -0700
parents 91a31873c42a
children 97da8c5fb40a
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1 package ch.ethz.ssh2.compression;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 /**
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7 * @author Kenny Root
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8 * @version $Id: CompressionFactory.java 156 2014-04-29 12:02:35Z dkocher@sudo.ch $
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9 */
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10 public class CompressionFactory {
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11 static class CompressorEntry {
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12 String type;
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13 String compressorClass;
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14
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15 public CompressorEntry(String type, String compressorClass) {
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16 this.type = type;
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17 this.compressorClass = compressorClass;
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18 }
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19 }
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20
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21 private static final List<CompressorEntry> compressors
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22 = new ArrayList<CompressorEntry>();
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23
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24 static {
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25 // Higher priority first
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26 compressors.add(new CompressorEntry("none", null));
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27 }
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29 public static String[] getDefaultCompressorList() {
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30 String list[] = new String[compressors.size()];
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31
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32 for (int i = 0; i < compressors.size(); i++) {
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33 CompressorEntry ce = compressors.get(i);
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34 list[i] = ce.type;
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35 }
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36
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37 return list;
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38 }
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39
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40 public static void checkCompressorList(String[] list) {
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41 for (final String candidate : list) {
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42 getEntry(candidate);
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43 }
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44 }
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45
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46 public static Compressor createCompressor(String type) {
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47 try {
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48 CompressorEntry ce = getEntry(type);
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49
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50 if (null == ce.compressorClass) {
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51 return null;
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52 }
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53
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54 Class<?> cc = Class.forName(ce.compressorClass);
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55 return (Compressor) cc.newInstance();
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56 }
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57 catch (Exception e) {
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58 throw new IllegalArgumentException("Cannot instantiate " + type);
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59 }
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60 }
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61
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62 private static CompressorEntry getEntry(String type) {
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63 for (CompressorEntry ce : compressors) {
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64 if (ce.type.equals(type)) {
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65 return ce;
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66 }
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67 }
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68
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69 throw new IllegalArgumentException("Unknown algorithm " + type);
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70 }
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71 }