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annotate src/org/eclipse/jetty/util/PatternMatcher.java @ 820:8e9db0bbf4f9

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remove org.eclipse.jetty.util.log and upgrade slf4j
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 13 Sep 2016 23:13:06 -0600
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.util;
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20
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21 import java.net.URI;
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22 import java.util.ArrayList;
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23 import java.util.List;
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24 import java.util.regex.Pattern;
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25
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26 public abstract class PatternMatcher
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27 {
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28 public abstract void matched (URI uri) throws Exception;
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29
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30
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31 /**
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32 * Find jar names from the provided list matching a pattern.
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33 *
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34 * If the pattern is null and isNullInclusive is true, then
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35 * all jar names will match.
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36 *
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37 * A pattern is a set of acceptable jar names. Each acceptable
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38 * jar name is a regex. Each regex can be separated by either a
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39 * "," or a "|". If you use a "|" this or's together the jar
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40 * name patterns. This means that ordering of the matches is
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41 * unimportant to you. If instead, you want to match particular
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42 * jar names, and you want to match them in order, you should
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43 * separate the regexs with "," instead.
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44 *
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45 * Eg "aaa-.*\\.jar|bbb-.*\\.jar"
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46 * Will iterate over the jar names and match
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47 * in any order.
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48 *
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49 * Eg "aaa-*\\.jar,bbb-.*\\.jar"
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50 * Will iterate over the jar names, matching
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51 * all those starting with "aaa-" first, then "bbb-".
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52 *
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53 * @param pattern the pattern
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54 * @param uris the uris to test the pattern against
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55 * @param isNullInclusive if true, an empty pattern means all names match, if false, none match
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56 * @throws Exception
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57 */
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58 public void match (Pattern pattern, URI[] uris, boolean isNullInclusive)
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59 throws Exception
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60 {
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61 if (uris!=null)
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62 {
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63 String[] patterns = (pattern==null?null:pattern.pattern().split(","));
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64
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65 List<Pattern> subPatterns = new ArrayList<Pattern>();
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66 for (int i=0; patterns!=null && i<patterns.length;i++)
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67 {
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68 subPatterns.add(Pattern.compile(patterns[i]));
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69 }
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70 if (subPatterns.isEmpty())
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71 subPatterns.add(pattern);
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72
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73 if (subPatterns.isEmpty())
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74 {
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75 matchPatterns(null, uris, isNullInclusive);
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76 }
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77 else
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78 {
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79 //for each subpattern, iterate over all the urls, processing those that match
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80 for (Pattern p : subPatterns)
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81 {
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82 matchPatterns(p, uris, isNullInclusive);
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83 }
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84 }
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85 }
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86 }
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87
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88
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89 public void matchPatterns (Pattern pattern, URI[] uris, boolean isNullInclusive)
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90 throws Exception
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91 {
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92 for (int i=0; i<uris.length;i++)
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93 {
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94 URI uri = uris[i];
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95 String s = uri.toString();
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96 if ((pattern == null && isNullInclusive)
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97 ||
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98 (pattern!=null && pattern.matcher(s).matches()))
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99 {
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100 matched(uris[i]);
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101 }
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102 }
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103 }
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104 }