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1 /*
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2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
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3
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4 Permission is hereby granted, free of charge, to any person obtaining a copy
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5 of this software and associated documentation files (the "Software"), to deal
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6 in the Software without restriction, including without limitation the rights
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7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 copies of the Software, and to permit persons to whom the Software is
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9 furnished to do so, subject to the following conditions:
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10
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11 The above copyright notice and this permission notice shall be included in
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12 all copies or substantial portions of the Software.
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13
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14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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20 THE SOFTWARE.
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21 */
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22
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23 package fschmidt.tools;
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24
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25 import java.io.File;
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26 import java.util.Set;
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27 import java.util.HashSet;
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28 import java.util.Arrays;
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29 import java.util.regex.Pattern;
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30 import fschmidt.util.java.ObjectUtils;
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31
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32
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33 /**
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34 * Lists nextag packages. Written for javadoc and used like:
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35 * <pre>
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36 * javadoc `java fschmidt.tools.Packages`
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37 * </pre>
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38 *
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39 * @author frank
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40 */
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41 public final class Packages {
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42
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43 public static void main (String args[]) {
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44 Set<String> list = new HashSet<String>();
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45 for( int i=0; i<args.length; i++ ) {
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46 pkgs(list,args[i]);
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47 }
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48 String[] a = (String[])list.toArray(new String[0]);
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49 for( int i=0; i<a.length; i++ ) {
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50 System.out.println(a[i]);
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51 }
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52 }
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53
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54 static void pkgs(Set<String> list,String pkg) {
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55 String[] dirs = toDirs(pkg);
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56 boolean hasFiles = false;
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57 for( int j=0; j<dirs.length; j++ ) {
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58 String dir = dirs[j];
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59 String[] ls = new File(dir).list();
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60 if( ls == null )
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61 continue;
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62 String[] subs = new String[ls.length];
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63 for( int i=0; i<ls.length; i++ ) {
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64 File f = new File(dir + File.separator + ls[i]);
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65 if( f.isDirectory() ) {
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66 pkgs( list, pkg + "." + ls[i] );
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67 }
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68 if( f.getName().endsWith(".java") )
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69 hasFiles = true;
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70 }
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71 }
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72 if( hasFiles )
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73 list.add(pkg);
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74 }
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75
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76 static String[] paths = System.getProperty("java.class.path").split(Pattern.quote(File.pathSeparator),-1);
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77
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78 static String[] toDirs(String pkg) {
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79 String relPath = ObjectUtils.join(
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80 Arrays.asList(pkg.split("\\.",-1)), File.separator
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81 );
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82 Set<String> list = new HashSet<String>();
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83 for( int i=0; i<paths.length; i++ ) {
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84 String path = paths[i];
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85 if( !path.endsWith(File.separator) )
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86 path += File.separator;
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87 if( new File(path+relPath).exists() )
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88 list.add(path+relPath);
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89 }
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90 return (String[])list.toArray(new String[0]);
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91 }
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92 }
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