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| <pre><span class="sourceLineNo">001</span>// ***************************************************************************************************************************<a name="line.1"></a> |
| <span class="sourceLineNo">002</span>// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span>// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file *<a name="line.3"></a> |
| <span class="sourceLineNo">004</span>// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance *<a name="line.4"></a> |
| <span class="sourceLineNo">005</span>// * with the License. You may obtain a copy of the License at *<a name="line.5"></a> |
| <span class="sourceLineNo">006</span>// * *<a name="line.6"></a> |
| <span class="sourceLineNo">007</span>// * http://www.apache.org/licenses/LICENSE-2.0 *<a name="line.7"></a> |
| <span class="sourceLineNo">008</span>// * *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span>// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span>// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span>// * specific language governing permissions and limitations under the License. *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span>// ***************************************************************************************************************************<a name="line.12"></a> |
| <span class="sourceLineNo">013</span>package org.apache.juneau.pojotools;<a name="line.13"></a> |
| <span class="sourceLineNo">014</span><a name="line.14"></a> |
| <span class="sourceLineNo">015</span>import static org.apache.juneau.internal.StringUtils.*;<a name="line.15"></a> |
| <span class="sourceLineNo">016</span><a name="line.16"></a> |
| <span class="sourceLineNo">017</span>import java.lang.reflect.*;<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>import java.util.*;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import org.apache.juneau.*;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>/**<a name="line.22"></a> |
| <span class="sourceLineNo">023</span> * Designed to provide paging on POJOs consisting of arrays and collections.<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> *<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * <p><a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * Allows you to quickly return subsets of arrays and collections based on position/limit arguments.<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> */<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>@SuppressWarnings({"rawtypes"})<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>public final class PojoSearcher implements PojoTool<SearchArgs> {<a name="line.29"></a> |
| <span class="sourceLineNo">030</span><a name="line.30"></a> |
| <span class="sourceLineNo">031</span> /**<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * Default reusable searcher.<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> */<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> public static final PojoSearcher DEFAULT = new PojoSearcher();<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> final MatcherFactory[] factories;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> /**<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * Constructor.<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> *<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @param factories The matcher factories to use.<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> */<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> public PojoSearcher(MatcherFactory...factories) {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> this.factories = factories;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> }<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> /**<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * Constructor.<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> */<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> public PojoSearcher() {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> this(NumberMatcherFactory.DEFAULT, TimeMatcherFactory.DEFAULT, StringMatcherFactory.DEFAULT);<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> }<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> @Override /* PojoTool */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> public Object run(BeanSession session, Object input, SearchArgs args) {<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> ClassMeta<?> type = session.getClassMetaForObject(input);<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> Map<String,String> search = args.getSearch();<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> if (search.isEmpty() || type == null || ! type.isCollectionOrArray())<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> return input;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> List<Object> l = null;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> RowMatcher rowMatcher = new RowMatcher(session, search);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> if (type.isCollection()) {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> Collection c = (Collection)input;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> l = new ArrayList<>(c.size());<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> for (Object o : c) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> if (rowMatcher.matches(o))<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> l.add(o);<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> }<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> } else /* isArray */ {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> int size = Array.getLength(input);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> l = new ArrayList<>(size);<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> for (int i = 0; i < size; i++) {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> Object o = Array.get(input, i);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> if (rowMatcher.matches(o))<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> l.add(o);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> return l;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> //====================================================================================================<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> // MapMatcher<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> //====================================================================================================<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> /*<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * Matches on a Map only if all specified entry matchers match.<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> */<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> private class RowMatcher {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> Map<String,ColumnMatcher> entryMatchers = new HashMap<>();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> BeanSession bs;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> RowMatcher(BeanSession bs, Map query) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> this.bs = bs;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> for (Map.Entry e : (Set<Map.Entry>)query.entrySet())<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> entryMatchers.put(stringify(e.getKey()), new ColumnMatcher(bs, stringify(e.getValue())));<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> boolean matches(Object o) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> if (o == null)<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> return false;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> ClassMeta<?> cm = bs.getClassMetaForObject(o);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> if (cm.isMapOrBean()) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> Map m = cm.isMap() ? (Map)o : bs.toBeanMap(o);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> for (Map.Entry<String,ColumnMatcher> e : entryMatchers.entrySet()) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> String key = e.getKey();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> Object val = null;<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (m instanceof BeanMap) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> val = ((BeanMap)m).getRaw(key);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> } else {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> val = m.get(key);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> if (! e.getValue().matches(val))<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> return false;<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> return true;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if (cm.isCollection()) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> for (Object o2 : (Collection)o)<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> if (! matches(o2))<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> return false;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> return true;<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> }<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (cm.isArray()) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> for (int i = 0; i < Array.getLength(o); i++)<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> if (! matches(Array.get(o, i)))<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> return false;<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> return true;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> return false;<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> }<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> //====================================================================================================<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> // ObjectMatcher<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> //====================================================================================================<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> /*<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> * Matcher that uses the correct matcher based on object type.<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> * Used for objects when we can't determine the object type beforehand.<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> */<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> private class ColumnMatcher {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> String searchPattern;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> Matcher[] matchers;<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> BeanSession bs;<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> ColumnMatcher(BeanSession bs, String searchPattern) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> this.bs = bs;<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> this.searchPattern = searchPattern;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> this.matchers = new Matcher[factories.length];<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> boolean matches(Object o) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> ClassMeta<?> cm = bs.getClassMetaForObject(o);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> if (cm == null)<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> return false;<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> if (cm.isCollection()) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> for (Object o2 : (Collection)o)<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> if (matches(o2))<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> return true;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> return false;<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (cm.isArray()) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> for (int i = 0; i < Array.getLength(o); i++)<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> if (matches(Array.get(o, i)))<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> return true;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> return false;<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> for (int i = 0; i < factories.length; i++) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> if (factories[i].canMatch(cm)) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> if (matchers[i] == null)<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> matchers[i] = factories[i].create(searchPattern);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> return matchers[i].matches(cm, o);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> return false;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span>}<a name="line.184"></a> |
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| </pre> |
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