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<li class="navelem"><a class="el" href="dir_1efe588324fc547683bba4a3f1bac847.html">core</a></li><li class="navelem"><a class="el" href="dir_42d6a63c575cefe61684dace41b3efd9.html">Support</a></li> </ul>
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<div class="title">CollectionsHelper.cs</div> </div>
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<a href="core_2_support_2_collections_helper_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * distributed with this work for additional information</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * &quot;License&quot;); you may not use this file except in compliance</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * with the License. You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * software distributed under the License is distributed on an</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * KIND, either express or implied. See the License for the</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * specific language governing permissions and limitations</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> * under the License.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">using</span> System;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">using</span> System.Collections;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="keyword">namespace </span>Lucene.Net.Support</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;{</div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html"> 31</a></span>&#160; <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html" title="Support class used to handle Hashtable addition, which does a check first to make sure the added item...">CollectionsHelper</a></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; {</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a5bb3c089a27c8308646fbc58bf476a30"> 33</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Add(System.Collections.Hashtable hashtable, System.Object item)</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; hashtable.<a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a5bb3c089a27c8308646fbc58bf476a30">Add</a>(item, item);</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; }</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#af1c634157a4e2a10bbc4b3c2b63c8bcc"> 38</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddIfNotContains(System.Collections.Hashtable hashtable, System.Object item)</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="comment">// Added lock around check. Even though the collection should already have </span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="comment">// a synchronized wrapper around it, it doesn&#39;t prevent this test from having</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="comment">// race conditions. Two threads can (and have in TestIndexReaderReopen) call</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="comment">// hashtable.Contains(item) == false at the same time, then both try to add to</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="comment">// the hashtable, causing an ArgumentException. locking on the collection</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="comment">// prevents this. -- cc</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; lock (hashtable)</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">if</span> (hashtable.Contains(item) == <span class="keyword">false</span>)</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; hashtable.Add(item, item);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; }</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; }</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a1b46ff5fc67e88a9b68fe2231ba1a406"> 55</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddIfNotContains(System.Collections.ArrayList hashtable, System.Object item)</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="comment">// see AddIfNotContains(Hashtable, object) for information about the lock</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; lock (hashtable)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordflow">if</span> (hashtable.Contains(item) == <span class="keyword">false</span>)</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; hashtable.Add(item);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a557756f80487305fd685ece893b9914f"> 67</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddAll(System.Collections.Hashtable hashtable, System.Collections.ICollection items)</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; System.Collections.IEnumerator iter = items.GetEnumerator();</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; System.Object item;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordflow">while</span> (iter.MoveNext())</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; item = iter.Current;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; hashtable.Add(item, item);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#aa3bc69bcacf8fdfdd779b12930fff500"> 78</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddAllIfNotContains(System.Collections.Hashtable hashtable, System.Collections.IList items)</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; System.Object item;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; items.Count; i++)</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; item = items[i];</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">if</span> (hashtable.Contains(item) == <span class="keyword">false</span>)</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; hashtable.Add(item, item);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a4ac4d8b9a9f47daec79d4dcea5caaf29"> 91</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddAllIfNotContains(System.Collections.Hashtable hashtable, System.Collections.ICollection items)</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; {</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; System.Collections.IEnumerator iter = items.GetEnumerator();</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; System.Object item;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">while</span> (iter.MoveNext())</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; item = iter.Current;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">if</span> (hashtable.Contains(item) == <span class="keyword">false</span>)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; hashtable.Add(item, item);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a3aad86552237d090f360ef4f14ea6473"> 105</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddAllIfNotContains(System.Collections.Generic.IDictionary&lt;<span class="keywordtype">string</span>, <span class="keywordtype">string</span>&gt; hashtable, System.Collections.Generic.ICollection&lt;<span class="keywordtype">string</span>&gt; items)</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordflow">foreach</span> (<span class="keywordtype">string</span> s <span class="keywordflow">in</span> items)</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">if</span> (hashtable.ContainsKey(s) == <span class="keyword">false</span>)</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; hashtable.Add(s, s);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;</div>
<div class="line"><a name="l00116"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#ab2c22e68e2526893d0bf5df788f11aec"> 116</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> AddAll(System.Collections.Generic.IDictionary&lt;<span class="keywordtype">string</span>, <span class="keywordtype">string</span>&gt; hashtable, System.Collections.Generic.ICollection&lt;<span class="keywordtype">string</span>&gt; items)</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; {</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keywordflow">foreach</span> (<span class="keywordtype">string</span> s <span class="keywordflow">in</span> items)</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; hashtable.Add(s, s);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; }</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a564f14ee83ab19ded4c3678a2d2bf235"> 124</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> Contains(System.Collections.Generic.ICollection&lt;<span class="keywordtype">string</span>&gt; col, <span class="keywordtype">string</span> item)</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordflow">foreach</span> (<span class="keywordtype">string</span> s <span class="keywordflow">in</span> col) <span class="keywordflow">if</span> (s == item) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; }</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#aa84f6452ebf72e7e20250fa8fdcb6213"> 130</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> Contains(System.Collections.ICollection col, System.Object item)</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; System.Collections.IEnumerator iter = col.GetEnumerator();</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keywordflow">while</span> (iter.MoveNext())</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; {</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">if</span> (iter.Current.Equals(item))</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; }</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;</div>
<div class="line"><a name="l00142"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a3147180a16037cadaeac49ee2008e537"> 142</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> System.String CollectionToString(System.Collections.Generic.IDictionary&lt;<span class="keywordtype">string</span>, <span class="keywordtype">string</span>&gt; c)</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; Hashtable t = <span class="keyword">new</span> Hashtable();</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">foreach</span> (<span class="keywordtype">string</span> key <span class="keywordflow">in</span> c.Keys)</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; {</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; t.Add(key, c[key]);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; }</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordflow">return</span> CollectionToString(t);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; }</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;</div>
<div class="line"><a name="l00157"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a1b4c487e25c243005b01a702ebdb5b8a"> 157</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> System.String CollectionToString(System.Collections.ICollection c)</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; {</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; System.Text.StringBuilder s = <span class="keyword">new</span> System.Text.StringBuilder();</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordflow">if</span> (c != null)</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; System.Collections.ArrayList l = <span class="keyword">new</span> System.Collections.ArrayList(c);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordtype">bool</span> isDictionary = (c is System.Collections.BitArray || c is System.Collections.Hashtable || c is System.Collections.IDictionary || c is System.Collections.Specialized.NameValueCollection || (l.Count &gt; 0 &amp;&amp; l[0] is System.Collections.DictionaryEntry));</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> index = 0; index &lt; l.Count; index++)</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; {</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">if</span> (l[index] == null)</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; s.Append(<span class="stringliteral">&quot;null&quot;</span>);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!isDictionary)</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; s.Append(l[index]);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; {</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; isDictionary = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keywordflow">if</span> (c is System.Collections.Specialized.NameValueCollection)</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; s.Append(((System.Collections.Specialized.NameValueCollection)c).GetKey(index));</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; s.Append(((System.Collections.DictionaryEntry)l[index]).Key);</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; s.Append(<span class="stringliteral">&quot;=&quot;</span>);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">if</span> (c is System.Collections.Specialized.NameValueCollection)</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; s.Append(((System.Collections.Specialized.NameValueCollection)c).GetValues(index)[0]);</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; s.Append(((System.Collections.DictionaryEntry)l[index]).Value);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">if</span> (index &lt; l.Count - 1)</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; s.Append(<span class="stringliteral">&quot;, &quot;</span>);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; }</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordflow">if</span> (isDictionary)</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; {</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordflow">if</span> (c is System.Collections.ArrayList)</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; isDictionary = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; }</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keywordflow">if</span> (isDictionary)</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; {</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; s.Insert(0, <span class="stringliteral">&quot;{&quot;</span>);</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; s.Append(<span class="stringliteral">&quot;}&quot;</span>);</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; }</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; {</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; s.Insert(0, <span class="stringliteral">&quot;[&quot;</span>);</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; s.Append(<span class="stringliteral">&quot;]&quot;</span>);</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; }</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; }</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; s.Insert(0, <span class="stringliteral">&quot;null&quot;</span>);</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="keywordflow">return</span> s.ToString();</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; }</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160;</div>
<div class="line"><a name="l00218"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#ac596781ddf5a733a24cd596e41d89247"> 218</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> CompareStringArrays(System.String[] l1, System.String[] l2)</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; {</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordflow">if</span> (l1.Length != l2.Length)</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; l1.Length; i++)</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; {</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordflow">if</span> (l1[i] != l2[i])</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; }</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; }</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160;</div>
<div class="line"><a name="l00235"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a1b4e5e4f824bca47ba08ad7544b1876c"> 235</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Sort(System.Collections.IList list, System.Collections.IComparer Comparator)</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="keywordflow">if</span> (((System.Collections.ArrayList)list).IsReadOnly)</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordflow">throw</span> <span class="keyword">new</span> System.NotSupportedException();</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="keywordflow">if</span> ((Comparator == null) || (Comparator is System.Collections.Comparer))</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; {</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">try</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; ((System.Collections.ArrayList)list).Sort();</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; }</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">catch</span> (System.InvalidOperationException e)</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; {</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">throw</span> <span class="keyword">new</span> System.InvalidCastException(e.Message);</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="keywordflow">try</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; {</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; ((System.Collections.ArrayList)list).Sort(Comparator);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; <span class="keywordflow">catch</span> (System.InvalidOperationException e)</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; {</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="keywordflow">throw</span> <span class="keyword">new</span> System.InvalidCastException(e.Message);</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; }</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; }</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160;</div>
<div class="line"><a name="l00271"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a991f1b1e01b73868b8c6d94b677dabb1"> 271</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Fill(System.Array array, System.Int32 fromindex, System.Int32 toindex, System.Object val)</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; System.Object Temp_Object = val;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; System.Type elementtype = array.GetType().GetElementType();</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="keywordflow">if</span> (elementtype != val.GetType())</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; Temp_Object = Convert.ChangeType(val, elementtype);</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">if</span> (array.Length == 0)</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="keywordflow">throw</span> (<span class="keyword">new</span> System.NullReferenceException());</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="keywordflow">if</span> (fromindex &gt; toindex)</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keywordflow">throw</span> (<span class="keyword">new</span> System.ArgumentException());</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keywordflow">if</span> ((fromindex &lt; 0) || ((System.Array)array).Length &lt; toindex)</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <span class="keywordflow">throw</span> (<span class="keyword">new</span> System.IndexOutOfRangeException());</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> index = (fromindex &gt; 0) ? fromindex-- : fromindex; index &lt; toindex; index++)</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; array.SetValue(Temp_Object, index);</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; }</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160;</div>
<div class="line"><a name="l00293"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a6d7d176207384a5dc664549dffe4049e"> 293</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> Fill(System.Array array, System.Object val)</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; {</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; Fill(array, 0, array.Length, val);</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; }</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;</div>
<div class="line"><a name="l00311"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_support_1_1_collections_helper.html#a7cc860b9f0c1d52431d8209f583b78a7"> 311</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> Equals(System.Array array1, System.Array array2)</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; {</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="keywordtype">bool</span> result = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="keywordflow">if</span> ((array1 == null) &amp;&amp; (array2 == null))</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; result = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((array1 != null) &amp;&amp; (array2 != null))</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="keywordflow">if</span> (array1.Length == array2.Length)</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; {</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="keywordtype">int</span> length = array1.Length;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; result = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> index = 0; index &lt; length; index++)</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; System.Object o1 = array1.GetValue(index);</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; System.Object o2 = array2.GetValue(index);</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; <span class="keywordflow">if</span> (o1 == null &amp;&amp; o2 == null)</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="keywordflow">continue</span>; <span class="comment">// they match</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (o1 == null || !o1.Equals(o2))</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; {</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; result = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; }</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; }</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; }</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; }</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; }</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160;}</div>
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