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apache / archiva-web-content / 9a96af7937f9a23fa050341756bf126f0c5518a8 / . / ref / 2.2.8 / xref / org / apache / archiva / metadata / repository / cassandra / CassandraUtils.html
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<div id="overview"><a href="../../../../../../../apidocs/org/apache/archiva/metadata/repository/cassandra/CassandraUtils.html">View Javadoc</a></div><pre>
<a class="jxr_linenumber" name="L1" href="#L1">1</a> <strong class="jxr_keyword">package</strong> org.apache.archiva.metadata.repository.cassandra;
<a class="jxr_linenumber" name="L2" href="#L2">2</a>
<a class="jxr_linenumber" name="L3" href="#L3">3</a> <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="L4" href="#L4">4</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
<a class="jxr_linenumber" name="L5" href="#L5">5</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em>
<a class="jxr_linenumber" name="L6" href="#L6">6</a> <em class="jxr_comment"> * distributed with this work for additional information</em>
<a class="jxr_linenumber" name="L7" href="#L7">7</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em>
<a class="jxr_linenumber" name="L8" href="#L8">8</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em>
<a class="jxr_linenumber" name="L9" href="#L9">9</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="L10" href="#L10">10</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="L11" href="#L11">11</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L12" href="#L12">12</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2." target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.</a>0</em>
<a class="jxr_linenumber" name="L13" href="#L13">13</a> <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L14" href="#L14">14</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em>
<a class="jxr_linenumber" name="L15" href="#L15">15</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em>
<a class="jxr_linenumber" name="L16" href="#L16">16</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a class="jxr_linenumber" name="L17" href="#L17">17</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em>
<a class="jxr_linenumber" name="L18" href="#L18">18</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="L19" href="#L19">19</a> <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="L20" href="#L20">20</a> <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="L21" href="#L21">21</a>
<a class="jxr_linenumber" name="L22" href="#L22">22</a> <strong class="jxr_keyword">import</strong> me.prettyprint.cassandra.serializers.LongSerializer;
<a class="jxr_linenumber" name="L23" href="#L23">23</a> <strong class="jxr_keyword">import</strong> me.prettyprint.cassandra.serializers.SerializerTypeInferer;
<a class="jxr_linenumber" name="L24" href="#L24">24</a> <strong class="jxr_keyword">import</strong> me.prettyprint.cassandra.serializers.StringSerializer;
<a class="jxr_linenumber" name="L25" href="#L25">25</a> <strong class="jxr_keyword">import</strong> me.prettyprint.cassandra.service.template.ColumnFamilyUpdater;
<a class="jxr_linenumber" name="L26" href="#L26">26</a> <strong class="jxr_keyword">import</strong> me.prettyprint.hector.api.Serializer;
<a class="jxr_linenumber" name="L27" href="#L27">27</a> <strong class="jxr_keyword">import</strong> me.prettyprint.hector.api.beans.ColumnSlice;
<a class="jxr_linenumber" name="L28" href="#L28">28</a> <strong class="jxr_keyword">import</strong> me.prettyprint.hector.api.beans.HColumn;
<a class="jxr_linenumber" name="L29" href="#L29">29</a> <strong class="jxr_keyword">import</strong> me.prettyprint.hector.api.factory.HFactory;
<a class="jxr_linenumber" name="L30" href="#L30">30</a> <strong class="jxr_keyword">import</strong> me.prettyprint.hector.api.mutation.Mutator;
<a class="jxr_linenumber" name="L31" href="#L31">31</a>
<a class="jxr_linenumber" name="L32" href="#L32">32</a> <strong class="jxr_keyword">import</strong> org.apache.archiva.metadata.repository.cassandra.model.ColumnNames;
<a class="jxr_linenumber" name="L33" href="#L33">33</a> <strong class="jxr_keyword">import</strong> org.apache.commons.lang.StringUtils;
<a class="jxr_linenumber" name="L34" href="#L34">34</a>
<a class="jxr_linenumber" name="L35" href="#L35">35</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L36" href="#L36">36</a> <em class="jxr_javadoccomment"> * @author Olivier Lamy</em>
<a class="jxr_linenumber" name="L37" href="#L37">37</a> <em class="jxr_javadoccomment"> * @since 2.0.0</em>
<a class="jxr_linenumber" name="L38" href="#L38">38</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L39" href="#L39">39</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/archiva/metadata/repository/cassandra/CassandraUtils.html">CassandraUtils</a>
<a class="jxr_linenumber" name="L40" href="#L40">40</a> {
<a class="jxr_linenumber" name="L41" href="#L41">41</a>
<a class="jxr_linenumber" name="L42" href="#L42">42</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String EMPTY_VALUE = <span class="jxr_string">""</span>;
<a class="jxr_linenumber" name="L43" href="#L43">43</a>
<a class="jxr_linenumber" name="L44" href="#L44">44</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String SEPARATOR = <span class="jxr_string">"-&gt;"</span>;
<a class="jxr_linenumber" name="L45" href="#L45">45</a>
<a class="jxr_linenumber" name="L46" href="#L46">46</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String generateKey( <strong class="jxr_keyword">final</strong> String... bases )
<a class="jxr_linenumber" name="L47" href="#L47">47</a> {
<a class="jxr_linenumber" name="L48" href="#L48">48</a> <strong class="jxr_keyword">final</strong> StringBuilder builder = <strong class="jxr_keyword">new</strong> StringBuilder();
<a class="jxr_linenumber" name="L49" href="#L49">49</a> <strong class="jxr_keyword">if</strong> ( bases == <strong class="jxr_keyword">null</strong> || bases.length == 0 )
<a class="jxr_linenumber" name="L50" href="#L50">50</a> {
<a class="jxr_linenumber" name="L51" href="#L51">51</a> <strong class="jxr_keyword">return</strong> builder.toString();
<a class="jxr_linenumber" name="L52" href="#L52">52</a> }
<a class="jxr_linenumber" name="L53" href="#L53">53</a>
<a class="jxr_linenumber" name="L54" href="#L54">54</a> <strong class="jxr_keyword">for</strong> ( <strong class="jxr_keyword">final</strong> String s : bases )
<a class="jxr_linenumber" name="L55" href="#L55">55</a> {
<a class="jxr_linenumber" name="L56" href="#L56">56</a> <strong class="jxr_keyword">if</strong> ( s != <strong class="jxr_keyword">null</strong> )
<a class="jxr_linenumber" name="L57" href="#L57">57</a> {
<a class="jxr_linenumber" name="L58" href="#L58">58</a> builder.append( s );
<a class="jxr_linenumber" name="L59" href="#L59">59</a> }
<a class="jxr_linenumber" name="L60" href="#L60">60</a> <strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="L61" href="#L61">61</a> {
<a class="jxr_linenumber" name="L62" href="#L62">62</a> builder.append( EMPTY_VALUE );
<a class="jxr_linenumber" name="L63" href="#L63">63</a> }
<a class="jxr_linenumber" name="L64" href="#L64">64</a> builder.append( SEPARATOR );
<a class="jxr_linenumber" name="L65" href="#L65">65</a> }
<a class="jxr_linenumber" name="L66" href="#L66">66</a> <strong class="jxr_keyword">if</strong> ( builder.length() &gt; 0 )
<a class="jxr_linenumber" name="L67" href="#L67">67</a> {
<a class="jxr_linenumber" name="L68" href="#L68">68</a> builder.setLength( builder.length() - SEPARATOR.length() );
<a class="jxr_linenumber" name="L69" href="#L69">69</a> }
<a class="jxr_linenumber" name="L70" href="#L70">70</a> <strong class="jxr_keyword">return</strong> builder.toString();
<a class="jxr_linenumber" name="L71" href="#L71">71</a> }
<a class="jxr_linenumber" name="L72" href="#L72">72</a>
<a class="jxr_linenumber" name="L73" href="#L73">73</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> &lt;A, B&gt; HColumn&lt;A, B&gt; column( <strong class="jxr_keyword">final</strong> A name, <strong class="jxr_keyword">final</strong> B value )
<a class="jxr_linenumber" name="L74" href="#L74">74</a> {
<a class="jxr_linenumber" name="L75" href="#L75">75</a>
<a class="jxr_linenumber" name="L76" href="#L76">76</a> <strong class="jxr_keyword">return</strong> HFactory.createColumn( name, <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="L77" href="#L77">77</a> value, <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="L78" href="#L78">78</a> (Serializer&lt;A&gt;) SerializerTypeInferer.getSerializer( name ), <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="L79" href="#L79">79</a> (Serializer&lt;B&gt;) SerializerTypeInferer.getSerializer( value ) );
<a class="jxr_linenumber" name="L80" href="#L80">80</a> }
<a class="jxr_linenumber" name="L81" href="#L81">81</a>
<a class="jxr_linenumber" name="L82" href="#L82">82</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String getStringValue( ColumnSlice&lt;String, String&gt; columnSlice, ColumnNames columnName )
<a class="jxr_linenumber" name="L83" href="#L83">83</a> {
<a class="jxr_linenumber" name="L84" href="#L84">84</a> <strong class="jxr_keyword">return</strong> getStringValue( columnSlice, columnName.toString() );
<a class="jxr_linenumber" name="L85" href="#L85">85</a> }
<a class="jxr_linenumber" name="L86" href="#L86">86</a>
<a class="jxr_linenumber" name="L87" href="#L87">87</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String getStringValue( ColumnSlice&lt;String, String&gt; columnSlice, String columnName )
<a class="jxr_linenumber" name="L88" href="#L88">88</a> {
<a class="jxr_linenumber" name="L89" href="#L89">89</a> <strong class="jxr_keyword">if</strong> ( StringUtils.isEmpty( columnName ) )
<a class="jxr_linenumber" name="L90" href="#L90">90</a> {
<a class="jxr_linenumber" name="L91" href="#L91">91</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L92" href="#L92">92</a> }
<a class="jxr_linenumber" name="L93" href="#L93">93</a>
<a class="jxr_linenumber" name="L94" href="#L94">94</a> HColumn&lt;String, String&gt; hColumn = columnSlice.getColumnByName( columnName );
<a class="jxr_linenumber" name="L95" href="#L95">95</a> <strong class="jxr_keyword">return</strong> hColumn == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : hColumn.getValue();
<a class="jxr_linenumber" name="L96" href="#L96">96</a> }
<a class="jxr_linenumber" name="L97" href="#L97">97</a>
<a class="jxr_linenumber" name="L98" href="#L98">98</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> Long getLongValue( ColumnSlice&lt;String, ?&gt; columnSlice, String columnName )
<a class="jxr_linenumber" name="L99" href="#L99">99</a> {
<a class="jxr_linenumber" name="L100" href="#L100">100</a> <strong class="jxr_keyword">if</strong> ( StringUtils.isEmpty( columnName ) )
<a class="jxr_linenumber" name="L101" href="#L101">101</a> {
<a class="jxr_linenumber" name="L102" href="#L102">102</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L103" href="#L103">103</a> }
<a class="jxr_linenumber" name="L104" href="#L104">104</a>
<a class="jxr_linenumber" name="L105" href="#L105">105</a> HColumn&lt;String, Long&gt; hColumn = (HColumn&lt;String, Long&gt;) columnSlice.getColumnByName( columnName );
<a class="jxr_linenumber" name="L106" href="#L106">106</a> <strong class="jxr_keyword">return</strong> hColumn == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : hColumn.getValue();
<a class="jxr_linenumber" name="L107" href="#L107">107</a> }
<a class="jxr_linenumber" name="L108" href="#L108">108</a>
<a class="jxr_linenumber" name="L109" href="#L109">109</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> &lt;T&gt; String getAsStringValue( ColumnSlice&lt;String, T&gt; columnSlice, String columnName )
<a class="jxr_linenumber" name="L110" href="#L110">110</a> {
<a class="jxr_linenumber" name="L111" href="#L111">111</a> StringSerializer ss = StringSerializer.get();
<a class="jxr_linenumber" name="L112" href="#L112">112</a> <strong class="jxr_keyword">if</strong> ( StringUtils.isEmpty( columnName ) )
<a class="jxr_linenumber" name="L113" href="#L113">113</a> {
<a class="jxr_linenumber" name="L114" href="#L114">114</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L115" href="#L115">115</a> }
<a class="jxr_linenumber" name="L116" href="#L116">116</a>
<a class="jxr_linenumber" name="L117" href="#L117">117</a> HColumn&lt;String, T&gt; hColumn = columnSlice.getColumnByName( columnName );
<a class="jxr_linenumber" name="L118" href="#L118">118</a> <strong class="jxr_keyword">return</strong> hColumn == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : ss.fromByteBuffer( hColumn.getValueBytes() );
<a class="jxr_linenumber" name="L119" href="#L119">119</a> }
<a class="jxr_linenumber" name="L120" href="#L120">120</a>
<a class="jxr_linenumber" name="L121" href="#L121">121</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> Long getAsLongValue( ColumnSlice&lt;String, String&gt; columnSlice, String columnName )
<a class="jxr_linenumber" name="L122" href="#L122">122</a> {
<a class="jxr_linenumber" name="L123" href="#L123">123</a> LongSerializer ls = LongSerializer.get();
<a class="jxr_linenumber" name="L124" href="#L124">124</a> <strong class="jxr_keyword">if</strong> ( StringUtils.isEmpty( columnName ) )
<a class="jxr_linenumber" name="L125" href="#L125">125</a> {
<a class="jxr_linenumber" name="L126" href="#L126">126</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L127" href="#L127">127</a> }
<a class="jxr_linenumber" name="L128" href="#L128">128</a>
<a class="jxr_linenumber" name="L129" href="#L129">129</a> HColumn&lt;String, String&gt; hColumn = columnSlice.getColumnByName( columnName );
<a class="jxr_linenumber" name="L130" href="#L130">130</a> <strong class="jxr_keyword">return</strong> hColumn == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : ls.fromByteBuffer( hColumn.getValueBytes() );
<a class="jxr_linenumber" name="L131" href="#L131">131</a> }
<a class="jxr_linenumber" name="L132" href="#L132">132</a>
<a class="jxr_linenumber" name="L133" href="#L133">133</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> addInsertion( Mutator&lt;String&gt; mutator, String key, String columnFamily, String columnName,
<a class="jxr_linenumber" name="L134" href="#L134">134</a> String value )
<a class="jxr_linenumber" name="L135" href="#L135">135</a> {
<a class="jxr_linenumber" name="L136" href="#L136">136</a> <strong class="jxr_keyword">if</strong> ( value != <strong class="jxr_keyword">null</strong> )
<a class="jxr_linenumber" name="L137" href="#L137">137</a> {
<a class="jxr_linenumber" name="L138" href="#L138">138</a> mutator.addInsertion( key, columnFamily, column( columnName, value ) );
<a class="jxr_linenumber" name="L139" href="#L139">139</a> }
<a class="jxr_linenumber" name="L140" href="#L140">140</a> }
<a class="jxr_linenumber" name="L141" href="#L141">141</a>
<a class="jxr_linenumber" name="L142" href="#L142">142</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L143" href="#L143">143</a> <em class="jxr_javadoccomment"> * null check on the value to prevent {@link java.lang.IllegalArgumentException}</em>
<a class="jxr_linenumber" name="L144" href="#L144">144</a> <em class="jxr_javadoccomment"> * @param updater</em>
<a class="jxr_linenumber" name="L145" href="#L145">145</a> <em class="jxr_javadoccomment"> * @param columnName</em>
<a class="jxr_linenumber" name="L146" href="#L146">146</a> <em class="jxr_javadoccomment"> * @param value</em>
<a class="jxr_linenumber" name="L147" href="#L147">147</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L148" href="#L148">148</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> addUpdateStringValue(ColumnFamilyUpdater&lt;String,String&gt; updater, String columnName, String value )
<a class="jxr_linenumber" name="L149" href="#L149">149</a> {
<a class="jxr_linenumber" name="L150" href="#L150">150</a> <strong class="jxr_keyword">if</strong> (value == <strong class="jxr_keyword">null</strong>)
<a class="jxr_linenumber" name="L151" href="#L151">151</a> {
<a class="jxr_linenumber" name="L152" href="#L152">152</a> <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="L153" href="#L153">153</a> }
<a class="jxr_linenumber" name="L154" href="#L154">154</a> updater.setString( columnName, value );
<a class="jxr_linenumber" name="L155" href="#L155">155</a>
<a class="jxr_linenumber" name="L156" href="#L156">156</a> }
<a class="jxr_linenumber" name="L157" href="#L157">157</a>
<a class="jxr_linenumber" name="L158" href="#L158">158</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/apache/archiva/metadata/repository/cassandra/CassandraUtils.html">CassandraUtils</a>()
<a class="jxr_linenumber" name="L159" href="#L159">159</a> {
<a class="jxr_linenumber" name="L160" href="#L160">160</a> <em class="jxr_comment">// no-op</em>
<a class="jxr_linenumber" name="L161" href="#L161">161</a> }
<a class="jxr_linenumber" name="L162" href="#L162">162</a>
<a class="jxr_linenumber" name="L163" href="#L163">163</a> }
</pre>
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