Added: websites/production/commonsrdf/content/testapidocs/src-html/org/apache/commons/rdf/api/AbstractDatasetTest.html ============================================================================== --- websites/production/commonsrdf/content/testapidocs/src-html/org/apache/commons/rdf/api/AbstractDatasetTest.html (added) +++ websites/production/commonsrdf/content/testapidocs/src-html/org/apache/commons/rdf/api/AbstractDatasetTest.html Wed Nov 16 10:55:17 2016 @@ -0,0 +1,666 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<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<a name="line.2"></a> +<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> +<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> +<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> +<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> +<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> +<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> +<span class="sourceLineNo">009</span> *<a name="line.9"></a> +<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> +<span class="sourceLineNo">011</span> *<a name="line.11"></a> +<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> +<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> +<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> +<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> +<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> +<span class="sourceLineNo">017</span> */<a name="line.17"></a> +<span class="sourceLineNo">018</span>package org.apache.commons.rdf.api;<a name="line.18"></a> +<span class="sourceLineNo">019</span><a name="line.19"></a> +<span class="sourceLineNo">020</span>import static org.junit.Assert.*;<a name="line.20"></a> +<span class="sourceLineNo">021</span><a name="line.21"></a> +<span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.HashSet;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.Iterator;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.util.Optional;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.util.Set;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.stream.Collectors;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.stream.Stream;<a name="line.31"></a> +<span class="sourceLineNo">032</span><a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.junit.Assume;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.junit.Before;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.junit.Test;<a name="line.35"></a> +<span class="sourceLineNo">036</span><a name="line.36"></a> +<span class="sourceLineNo">037</span>/**<a name="line.37"></a> +<span class="sourceLineNo">038</span> * Test Dataset implementation<a name="line.38"></a> +<span class="sourceLineNo">039</span> * <p><a name="line.39"></a> +<span class="sourceLineNo">040</span> * To add to your implementation's tests, create a subclass with a name ending<a name="line.40"></a> +<span class="sourceLineNo">041</span> * in <code>Test</code> and provide {@link #createFactory()} which minimally<a name="line.41"></a> +<span class="sourceLineNo">042</span> * must support {@link RDF#createDataset()} and {@link RDF#createIRI(String)}, but<a name="line.42"></a> +<span class="sourceLineNo">043</span> * ideally support all operations.<a name="line.43"></a> +<span class="sourceLineNo">044</span> * <p><a name="line.44"></a> +<span class="sourceLineNo">045</span> * This test uses try-with-resources blocks for calls to {@link Dataset#stream()}<a name="line.45"></a> +<span class="sourceLineNo">046</span> * and {@link Dataset#iterate()}.<a name="line.46"></a> +<span class="sourceLineNo">047</span> * <a name="line.47"></a> +<span class="sourceLineNo">048</span> * @see Dataset<a name="line.48"></a> +<span class="sourceLineNo">049</span> * @see RDF<a name="line.49"></a> +<span class="sourceLineNo">050</span> */<a name="line.50"></a> +<span class="sourceLineNo">051</span>public abstract class AbstractDatasetTest {<a name="line.51"></a> +<span class="sourceLineNo">052</span><a name="line.52"></a> +<span class="sourceLineNo">053</span> protected RDF factory;<a name="line.53"></a> +<span class="sourceLineNo">054</span> protected Dataset dataset;<a name="line.54"></a> +<span class="sourceLineNo">055</span> protected IRI alice;<a name="line.55"></a> +<span class="sourceLineNo">056</span> protected IRI bob;<a name="line.56"></a> +<span class="sourceLineNo">057</span> protected IRI name;<a name="line.57"></a> +<span class="sourceLineNo">058</span> protected IRI knows;<a name="line.58"></a> +<span class="sourceLineNo">059</span> protected IRI member;<a name="line.59"></a> +<span class="sourceLineNo">060</span> protected BlankNode bnode1;<a name="line.60"></a> +<span class="sourceLineNo">061</span> protected BlankNode bnode2;<a name="line.61"></a> +<span class="sourceLineNo">062</span> protected Literal aliceName;<a name="line.62"></a> +<span class="sourceLineNo">063</span> protected Literal bobName;<a name="line.63"></a> +<span class="sourceLineNo">064</span> protected Literal secretClubName;<a name="line.64"></a> +<span class="sourceLineNo">065</span> protected Literal companyName;<a name="line.65"></a> +<span class="sourceLineNo">066</span> protected Quad bobNameQuad;<a name="line.66"></a> +<span class="sourceLineNo">067</span> private IRI isPrimaryTopicOf;<a name="line.67"></a> +<span class="sourceLineNo">068</span> private IRI graph1;<a name="line.68"></a> +<span class="sourceLineNo">069</span> private BlankNode graph2;<a name="line.69"></a> +<span class="sourceLineNo">070</span><a name="line.70"></a> +<span class="sourceLineNo">071</span> /**<a name="line.71"></a> +<span class="sourceLineNo">072</span> * <a name="line.72"></a> +<span class="sourceLineNo">073</span> * This method must be overridden by the implementing test to provide a<a name="line.73"></a> +<span class="sourceLineNo">074</span> * factory for the test to create {@link Dataset}, {@link IRI} etc.<a name="line.74"></a> +<span class="sourceLineNo">075</span> * <a name="line.75"></a> +<span class="sourceLineNo">076</span> * @return {@link RDF} instance to be tested.<a name="line.76"></a> +<span class="sourceLineNo">077</span> */<a name="line.77"></a> +<span class="sourceLineNo">078</span> protected abstract RDF createFactory();<a name="line.78"></a> +<span class="sourceLineNo">079</span><a name="line.79"></a> +<span class="sourceLineNo">080</span> @Before<a name="line.80"></a> +<span class="sourceLineNo">081</span> public void createDatasetAndAdd() {<a name="line.81"></a> +<span class="sourceLineNo">082</span> factory = createFactory();<a name="line.82"></a> +<span class="sourceLineNo">083</span> dataset = factory.createDataset();<a name="line.83"></a> +<span class="sourceLineNo">084</span> assertEquals(0, dataset.size());<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> graph1 = factory.createIRI("http://example.com/graph1";);<a name="line.86"></a> +<span class="sourceLineNo">087</span> graph2 = factory.createBlankNode();<a name="line.87"></a> +<span class="sourceLineNo">088</span> <a name="line.88"></a> +<span class="sourceLineNo">089</span> alice = factory.createIRI("http://example.com/alice";);<a name="line.89"></a> +<span class="sourceLineNo">090</span> bob = factory.createIRI("http://example.com/bob";);<a name="line.90"></a> +<span class="sourceLineNo">091</span> name = factory.createIRI("http://xmlns.com/foaf/0.1/name";);<a name="line.91"></a> +<span class="sourceLineNo">092</span> knows = factory.createIRI("http://xmlns.com/foaf/0.1/knows";);<a name="line.92"></a> +<span class="sourceLineNo">093</span> member = factory.createIRI("http://xmlns.com/foaf/0.1/member";);<a name="line.93"></a> +<span class="sourceLineNo">094</span> bnode1 = factory.createBlankNode("org1");<a name="line.94"></a> +<span class="sourceLineNo">095</span> bnode2 = factory.createBlankNode("org2");<a name="line.95"></a> +<span class="sourceLineNo">096</span><a name="line.96"></a> +<span class="sourceLineNo">097</span> secretClubName = factory.createLiteral("The Secret Club");<a name="line.97"></a> +<span class="sourceLineNo">098</span> companyName = factory.createLiteral("A company");<a name="line.98"></a> +<span class="sourceLineNo">099</span> aliceName = factory.createLiteral("Alice");<a name="line.99"></a> +<span class="sourceLineNo">100</span> bobName = factory.createLiteral("Bob", "en-US");<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> dataset.add(graph1, alice, name, aliceName);<a name="line.102"></a> +<span class="sourceLineNo">103</span> dataset.add(graph1, alice, knows, bob);<a name="line.103"></a> +<span class="sourceLineNo">104</span><a name="line.104"></a> +<span class="sourceLineNo">105</span> dataset.add(graph1, alice, member, bnode1);<a name="line.105"></a> +<span class="sourceLineNo">106</span><a name="line.106"></a> +<span class="sourceLineNo">107</span> bobNameQuad = factory.createQuad(graph2, bob, name, bobName);<a name="line.107"></a> +<span class="sourceLineNo">108</span> dataset.add(bobNameQuad);<a name="line.108"></a> +<span class="sourceLineNo">109</span><a name="line.109"></a> +<span class="sourceLineNo">110</span> dataset.add(factory.createQuad(graph2, bob, member, bnode1));<a name="line.110"></a> +<span class="sourceLineNo">111</span> dataset.add(factory.createQuad(graph2, bob, member, bnode2));<a name="line.111"></a> +<span class="sourceLineNo">112</span> // NOTE: bnode1 used in both graph1 and graph2<a name="line.112"></a> +<span class="sourceLineNo">113</span> dataset.add(graph1, bnode1, name, secretClubName);<a name="line.113"></a> +<span class="sourceLineNo">114</span> dataset.add(graph2, bnode2, name, companyName);<a name="line.114"></a> +<span class="sourceLineNo">115</span> <a name="line.115"></a> +<span class="sourceLineNo">116</span> // default graph describes graph1 and graph2 <a name="line.116"></a> +<span class="sourceLineNo">117</span> isPrimaryTopicOf = factory.createIRI("http://xmlns.com/foaf/0.1/isPrimaryTopicOf";);<a name="line.117"></a> +<span class="sourceLineNo">118</span> dataset.add(null, alice, isPrimaryTopicOf, graph1);<a name="line.118"></a> +<span class="sourceLineNo">119</span> dataset.add(null, bob, isPrimaryTopicOf, graph2);<a name="line.119"></a> +<span class="sourceLineNo">120</span> <a name="line.120"></a> +<span class="sourceLineNo">121</span> <a name="line.121"></a> +<span class="sourceLineNo">122</span> }<a name="line.122"></a> +<span class="sourceLineNo">123</span><a name="line.123"></a> +<span class="sourceLineNo">124</span> @Test<a name="line.124"></a> +<span class="sourceLineNo">125</span> public void size() throws Exception {<a name="line.125"></a> +<span class="sourceLineNo">126</span> assertEquals(10, dataset.size());<a name="line.126"></a> +<span class="sourceLineNo">127</span> }<a name="line.127"></a> +<span class="sourceLineNo">128</span><a name="line.128"></a> +<span class="sourceLineNo">129</span> @Test<a name="line.129"></a> +<span class="sourceLineNo">130</span> public void iterate() throws Exception {<a name="line.130"></a> +<span class="sourceLineNo">131</span> Assume.assumeTrue(dataset.size() > 0);<a name="line.131"></a> +<span class="sourceLineNo">132</span> List<Quad> quads = new ArrayList<>();<a name="line.132"></a> +<span class="sourceLineNo">133</span> for (Quad t : dataset.iterate()) {<a name="line.133"></a> +<span class="sourceLineNo">134</span> quads.add(t);<a name="line.134"></a> +<span class="sourceLineNo">135</span> }<a name="line.135"></a> +<span class="sourceLineNo">136</span> assertEquals(dataset.size(), quads.size());<a name="line.136"></a> +<span class="sourceLineNo">137</span> <a name="line.137"></a> +<span class="sourceLineNo">138</span> //assertTrue(quads.contains(bobNameQuad));<a name="line.138"></a> +<span class="sourceLineNo">139</span> // java.util.List won't do any BlankNode mapping, so <a name="line.139"></a> +<span class="sourceLineNo">140</span> // instead bobNameQuad of let's check for an IRI-centric quad <a name="line.140"></a> +<span class="sourceLineNo">141</span> Quad q = factory.createQuad(graph1, alice, name, aliceName);<a name="line.141"></a> +<span class="sourceLineNo">142</span> quads.contains(q);<a name="line.142"></a> +<span class="sourceLineNo">143</span><a name="line.143"></a> +<span class="sourceLineNo">144</span> // aborted iteration<a name="line.144"></a> +<span class="sourceLineNo">145</span> Iterable<Quad> iterate = dataset.iterate();<a name="line.145"></a> +<span class="sourceLineNo">146</span> Iterator<Quad> it = iterate.iterator();<a name="line.146"></a> +<span class="sourceLineNo">147</span><a name="line.147"></a> +<span class="sourceLineNo">148</span> assertTrue(it.hasNext());<a name="line.148"></a> +<span class="sourceLineNo">149</span> it.next();<a name="line.149"></a> +<span class="sourceLineNo">150</span> closeIterable(iterate);<a name="line.150"></a> +<span class="sourceLineNo">151</span><a name="line.151"></a> +<span class="sourceLineNo">152</span> // second iteration - should start from fresh and<a name="line.152"></a> +<span class="sourceLineNo">153</span> // get the same count<a name="line.153"></a> +<span class="sourceLineNo">154</span> long count = 0;<a name="line.154"></a> +<span class="sourceLineNo">155</span> Iterable<Quad> iterable = dataset.iterate();<a name="line.155"></a> +<span class="sourceLineNo">156</span> for (@SuppressWarnings("unused")<a name="line.156"></a> +<span class="sourceLineNo">157</span> Quad t : iterable) {<a name="line.157"></a> +<span class="sourceLineNo">158</span> count++;<a name="line.158"></a> +<span class="sourceLineNo">159</span> }<a name="line.159"></a> +<span class="sourceLineNo">160</span> assertEquals(dataset.size(), count);<a name="line.160"></a> +<span class="sourceLineNo">161</span> }<a name="line.161"></a> +<span class="sourceLineNo">162</span><a name="line.162"></a> +<span class="sourceLineNo">163</span> /**<a name="line.163"></a> +<span class="sourceLineNo">164</span> * Special quad closing for RDF4J.<a name="line.164"></a> +<span class="sourceLineNo">165</span> */<a name="line.165"></a> +<span class="sourceLineNo">166</span> private void closeIterable(Iterable<Quad> iterate) throws Exception {<a name="line.166"></a> +<span class="sourceLineNo">167</span> if (iterate instanceof AutoCloseable) {<a name="line.167"></a> +<span class="sourceLineNo">168</span> ((AutoCloseable) iterate).close();<a name="line.168"></a> +<span class="sourceLineNo">169</span> }<a name="line.169"></a> +<span class="sourceLineNo">170</span> }<a name="line.170"></a> +<span class="sourceLineNo">171</span><a name="line.171"></a> +<span class="sourceLineNo">172</span> @Test<a name="line.172"></a> +<span class="sourceLineNo">173</span> public void iterateFilter() throws Exception {<a name="line.173"></a> +<span class="sourceLineNo">174</span> List<RDFTerm> friends = new ArrayList<>();<a name="line.174"></a> +<span class="sourceLineNo">175</span> IRI alice = factory.createIRI("http://example.com/alice";);<a name="line.175"></a> +<span class="sourceLineNo">176</span> IRI knows = factory.createIRI("http://xmlns.com/foaf/0.1/knows";);<a name="line.176"></a> +<span class="sourceLineNo">177</span> for (Quad t : dataset.iterate(null, alice, knows, null)) {<a name="line.177"></a> +<span class="sourceLineNo">178</span> friends.add(t.getObject());<a name="line.178"></a> +<span class="sourceLineNo">179</span> }<a name="line.179"></a> +<span class="sourceLineNo">180</span> assertEquals(1, friends.size());<a name="line.180"></a> +<span class="sourceLineNo">181</span> assertEquals(bob, friends.get(0));<a name="line.181"></a> +<span class="sourceLineNo">182</span><a name="line.182"></a> +<span class="sourceLineNo">183</span> // .. can we iterate over zero hits?<a name="line.183"></a> +<span class="sourceLineNo">184</span> Iterable<Quad> iterate = dataset.iterate(Optional.of(graph2), bob, knows, alice);<a name="line.184"></a> +<span class="sourceLineNo">185</span> for (Quad unexpected : iterate) {<a name="line.185"></a> +<span class="sourceLineNo">186</span> fail("Unexpected quad " + unexpected);<a name="line.186"></a> +<span class="sourceLineNo">187</span> }<a name="line.187"></a> +<span class="sourceLineNo">188</span> // closeIterable(iterate);<a name="line.188"></a> +<span class="sourceLineNo">189</span> }<a name="line.189"></a> +<span class="sourceLineNo">190</span><a name="line.190"></a> +<span class="sourceLineNo">191</span> @Test<a name="line.191"></a> +<span class="sourceLineNo">192</span> public void contains() throws Exception {<a name="line.192"></a> +<span class="sourceLineNo">193</span> assertFalse(dataset.contains(null, bob, knows, alice)); // or so he claims..<a name="line.193"></a> +<span class="sourceLineNo">194</span><a name="line.194"></a> +<span class="sourceLineNo">195</span> assertTrue(dataset.contains(Optional.of(graph1), alice, knows, bob));<a name="line.195"></a> +<span class="sourceLineNo">196</span><a name="line.196"></a> +<span class="sourceLineNo">197</span> try (Stream<? extends Quad> stream = dataset.stream()) {<a name="line.197"></a> +<span class="sourceLineNo">198</span> Optional<? extends Quad> first = stream.skip(4).findFirst();<a name="line.198"></a> +<span class="sourceLineNo">199</span> Assume.assumeTrue(first.isPresent());<a name="line.199"></a> +<span class="sourceLineNo">200</span> Quad existingQuad = first.get();<a name="line.200"></a> +<span class="sourceLineNo">201</span> assertTrue(dataset.contains(existingQuad));<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span><a name="line.203"></a> +<span class="sourceLineNo">204</span> Quad nonExistingQuad = factory.createQuad(graph2, bob, knows, alice);<a name="line.204"></a> +<span class="sourceLineNo">205</span> assertFalse(dataset.contains(nonExistingQuad));<a name="line.205"></a> +<span class="sourceLineNo">206</span><a name="line.206"></a> +<span class="sourceLineNo">207</span> // An existing quad<a name="line.207"></a> +<span class="sourceLineNo">208</span> Quad quad = factory.createQuad(graph1, alice, knows, bob);<a name="line.208"></a> +<span class="sourceLineNo">209</span> // FIXME: Should not this always be true?<a name="line.209"></a> +<span class="sourceLineNo">210</span> assertTrue(dataset.contains(quad));<a name="line.210"></a> +<span class="sourceLineNo">211</span> }<a name="line.211"></a> +<span class="sourceLineNo">212</span><a name="line.212"></a> +<span class="sourceLineNo">213</span> @Test<a name="line.213"></a> +<span class="sourceLineNo">214</span> public void remove() throws Exception {<a name="line.214"></a> +<span class="sourceLineNo">215</span> long fullSize = dataset.size();<a name="line.215"></a> +<span class="sourceLineNo">216</span> dataset.remove(Optional.of(graph1), alice, knows, bob);<a name="line.216"></a> +<span class="sourceLineNo">217</span> long shrunkSize = dataset.size();<a name="line.217"></a> +<span class="sourceLineNo">218</span> assertEquals(1, fullSize - shrunkSize);<a name="line.218"></a> +<span class="sourceLineNo">219</span><a name="line.219"></a> +<span class="sourceLineNo">220</span> dataset.remove(Optional.of(graph1), alice, knows, bob);<a name="line.220"></a> +<span class="sourceLineNo">221</span> assertEquals(shrunkSize, dataset.size()); // unchanged<a name="line.221"></a> +<span class="sourceLineNo">222</span><a name="line.222"></a> +<span class="sourceLineNo">223</span> dataset.add(graph1, alice, knows, bob);<a name="line.223"></a> +<span class="sourceLineNo">224</span> dataset.add(graph2, alice, knows, bob);<a name="line.224"></a> +<span class="sourceLineNo">225</span> dataset.add(graph2, alice, knows, bob);<a name="line.225"></a> +<span class="sourceLineNo">226</span> // Undetermined size at this point -- but at least it<a name="line.226"></a> +<span class="sourceLineNo">227</span> // should be bigger<a name="line.227"></a> +<span class="sourceLineNo">228</span> assertTrue(dataset.size() > shrunkSize);<a name="line.228"></a> +<span class="sourceLineNo">229</span><a name="line.229"></a> +<span class="sourceLineNo">230</span> // and after a single remove they should all be gone<a name="line.230"></a> +<span class="sourceLineNo">231</span> dataset.remove(null, alice, knows, bob);<a name="line.231"></a> +<span class="sourceLineNo">232</span> assertEquals(shrunkSize, dataset.size());<a name="line.232"></a> +<span class="sourceLineNo">233</span><a name="line.233"></a> +<span class="sourceLineNo">234</span> Quad otherQuad;<a name="line.234"></a> +<span class="sourceLineNo">235</span> try (Stream<? extends Quad> stream = dataset.stream()) {<a name="line.235"></a> +<span class="sourceLineNo">236</span> Optional<? extends Quad> anyQuad = stream.findAny();<a name="line.236"></a> +<span class="sourceLineNo">237</span> Assume.assumeTrue(anyQuad.isPresent());<a name="line.237"></a> +<span class="sourceLineNo">238</span> otherQuad = anyQuad.get();<a name="line.238"></a> +<span class="sourceLineNo">239</span> }<a name="line.239"></a> +<span class="sourceLineNo">240</span><a name="line.240"></a> +<span class="sourceLineNo">241</span> dataset.remove(otherQuad);<a name="line.241"></a> +<span class="sourceLineNo">242</span> assertEquals(shrunkSize - 1, dataset.size());<a name="line.242"></a> +<span class="sourceLineNo">243</span> dataset.remove(otherQuad);<a name="line.243"></a> +<span class="sourceLineNo">244</span> assertEquals(shrunkSize - 1, dataset.size()); // no change<a name="line.244"></a> +<span class="sourceLineNo">245</span><a name="line.245"></a> +<span class="sourceLineNo">246</span> // for some reason in rdf4j this causes duplicates!<a name="line.246"></a> +<span class="sourceLineNo">247</span> dataset.add(otherQuad);<a name="line.247"></a> +<span class="sourceLineNo">248</span> // dataset.stream().forEach(System.out::println);<a name="line.248"></a> +<span class="sourceLineNo">249</span> // should have increased<a name="line.249"></a> +<span class="sourceLineNo">250</span> assertTrue(dataset.size() >= shrunkSize);<a name="line.250"></a> +<span class="sourceLineNo">251</span> }<a name="line.251"></a> +<span class="sourceLineNo">252</span><a name="line.252"></a> +<span class="sourceLineNo">253</span> @Test<a name="line.253"></a> +<span class="sourceLineNo">254</span> public void clear() throws Exception {<a name="line.254"></a> +<span class="sourceLineNo">255</span> dataset.clear();<a name="line.255"></a> +<span class="sourceLineNo">256</span> assertFalse(dataset.contains(null, alice, knows, bob));<a name="line.256"></a> +<span class="sourceLineNo">257</span> assertEquals(0, dataset.size());<a name="line.257"></a> +<span class="sourceLineNo">258</span> dataset.clear(); // no-op<a name="line.258"></a> +<span class="sourceLineNo">259</span> assertEquals(0, dataset.size());<a name="line.259"></a> +<span class="sourceLineNo">260</span> assertFalse(dataset.contains(null, null, null, null)); // nothing here<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<a name="line.261"></a> +<span class="sourceLineNo">262</span><a name="line.262"></a> +<span class="sourceLineNo">263</span> @Test<a name="line.263"></a> +<span class="sourceLineNo">264</span> public void getQuads() throws Exception {<a name="line.264"></a> +<span class="sourceLineNo">265</span> long quadCount;<a name="line.265"></a> +<span class="sourceLineNo">266</span> try (Stream<? extends Quad> stream = dataset.stream()) {<a name="line.266"></a> +<span class="sourceLineNo">267</span> quadCount = stream.count();<a name="line.267"></a> +<span class="sourceLineNo">268</span> }<a name="line.268"></a> +<span class="sourceLineNo">269</span> assertTrue(quadCount > 0);<a name="line.269"></a> +<span class="sourceLineNo">270</span><a name="line.270"></a> +<span class="sourceLineNo">271</span> try (Stream<? extends Quad> stream = dataset.stream()) {<a name="line.271"></a> +<span class="sourceLineNo">272</span> assertTrue(stream.allMatch(t -> dataset.contains(t)));<a name="line.272"></a> +<span class="sourceLineNo">273</span> }<a name="line.273"></a> +<span class="sourceLineNo">274</span><a name="line.274"></a> +<span class="sourceLineNo">275</span> // Check exact count<a name="line.275"></a> +<span class="sourceLineNo">276</span> Assume.assumeNotNull(bnode1, bnode2, aliceName, bobName, secretClubName, companyName, bobNameQuad);<a name="line.276"></a> +<span class="sourceLineNo">277</span> assertEquals(10, quadCount);<a name="line.277"></a> +<span class="sourceLineNo">278</span> }<a name="line.278"></a> +<span class="sourceLineNo">279</span><a name="line.279"></a> +<span class="sourceLineNo">280</span> @Test<a name="line.280"></a> +<span class="sourceLineNo">281</span> public void getQuadsQuery() throws Exception {<a name="line.281"></a> +<span class="sourceLineNo">282</span><a name="line.282"></a> +<span class="sourceLineNo">283</span> try (Stream<? extends Quad> stream = dataset.stream(Optional.of(graph1), alice, null, null)) {<a name="line.283"></a> +<span class="sourceLineNo">284</span> long aliceCount = stream.count();<a name="line.284"></a> +<span class="sourceLineNo">285</span> assertTrue(aliceCount > 0);<a name="line.285"></a> +<span class="sourceLineNo">286</span> Assume.assumeNotNull(aliceName);<a name="line.286"></a> +<span class="sourceLineNo">287</span> assertEquals(3, aliceCount);<a name="line.287"></a> +<span class="sourceLineNo">288</span> }<a name="line.288"></a> +<span class="sourceLineNo">289</span><a name="line.289"></a> +<span class="sourceLineNo">290</span> Assume.assumeNotNull(bnode1, bnode2, bobName, companyName, secretClubName);<a name="line.290"></a> +<span class="sourceLineNo">291</span> try (Stream<? extends Quad> stream = dataset.stream(null, null, name, null)) {<a name="line.291"></a> +<span class="sourceLineNo">292</span> assertEquals(4, stream.count());<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span> Assume.assumeNotNull(bnode1);<a name="line.294"></a> +<span class="sourceLineNo">295</span> try (Stream<? extends Quad> stream = dataset.stream(null, null, member, null)) {<a name="line.295"></a> +<span class="sourceLineNo">296</span> assertEquals(3, stream.count());<a name="line.296"></a> +<span class="sourceLineNo">297</span> }<a name="line.297"></a> +<span class="sourceLineNo">298</span> }<a name="line.298"></a> +<span class="sourceLineNo">299</span><a name="line.299"></a> +<span class="sourceLineNo">300</span> @Test<a name="line.300"></a> +<span class="sourceLineNo">301</span> public void addBlankNodesFromMultipleDatasets() {<a name="line.301"></a> +<span class="sourceLineNo">302</span> // Create two separate Dataset instances<a name="line.302"></a> +<span class="sourceLineNo">303</span> Dataset g1 = createDataset1();<a name="line.303"></a> +<span class="sourceLineNo">304</span> Dataset g2 = createDataset2();<a name="line.304"></a> +<span class="sourceLineNo">305</span><a name="line.305"></a> +<span class="sourceLineNo">306</span> // and add them to a new Dataset g3<a name="line.306"></a> +<span class="sourceLineNo">307</span> Dataset g3 = factory.createDataset();<a name="line.307"></a> +<span class="sourceLineNo">308</span> addAllQuads(g1, g3);<a name="line.308"></a> +<span class="sourceLineNo">309</span> addAllQuads(g2, g3);<a name="line.309"></a> +<span class="sourceLineNo">310</span><a name="line.310"></a> +<span class="sourceLineNo">311</span> // Let's make a map to find all those blank nodes after insertion<a name="line.311"></a> +<span class="sourceLineNo">312</span> // (The Dataset implementation is not currently required to<a name="line.312"></a> +<span class="sourceLineNo">313</span> // keep supporting those BlankNodes with contains() - see<a name="line.313"></a> +<span class="sourceLineNo">314</span> // COMMONSRDF-15)<a name="line.314"></a> +<span class="sourceLineNo">315</span><a name="line.315"></a> +<span class="sourceLineNo">316</span> final Map<String, BlankNodeOrIRI> whoIsWho = new ConcurrentHashMap<>();<a name="line.316"></a> +<span class="sourceLineNo">317</span> // ConcurrentHashMap as we will try parallel forEach below,<a name="line.317"></a> +<span class="sourceLineNo">318</span> // which should not give inconsistent results (it does with a<a name="line.318"></a> +<span class="sourceLineNo">319</span> // HashMap!)<a name="line.319"></a> +<span class="sourceLineNo">320</span><a name="line.320"></a> +<span class="sourceLineNo">321</span> // look up BlankNodes by name<a name="line.321"></a> +<span class="sourceLineNo">322</span> IRI name = factory.createIRI("http://xmlns.com/foaf/0.1/name";);<a name="line.322"></a> +<span class="sourceLineNo">323</span> try (Stream<? extends Quad> stream = g3.stream(null, null, name, null)) {<a name="line.323"></a> +<span class="sourceLineNo">324</span> stream.parallel().forEach(t -> whoIsWho.put(t.getObject().ntriplesString(), t.getSubject()));<a name="line.324"></a> +<span class="sourceLineNo">325</span> }<a name="line.325"></a> +<span class="sourceLineNo">326</span><a name="line.326"></a> +<span class="sourceLineNo">327</span> assertEquals(4, whoIsWho.size());<a name="line.327"></a> +<span class="sourceLineNo">328</span> // and contains 4 unique values<a name="line.328"></a> +<span class="sourceLineNo">329</span> assertEquals(4, new HashSet<BlankNodeOrIRI>(whoIsWho.values()).size());<a name="line.329"></a> +<span class="sourceLineNo">330</span><a name="line.330"></a> +<span class="sourceLineNo">331</span> BlankNodeOrIRI b1Alice = whoIsWho.get("\"Alice\"");<a name="line.331"></a> +<span class="sourceLineNo">332</span> assertNotNull(b1Alice);<a name="line.332"></a> +<span class="sourceLineNo">333</span> BlankNodeOrIRI b2Bob = whoIsWho.get("\"Bob\"");<a name="line.333"></a> +<span class="sourceLineNo">334</span> assertNotNull(b2Bob);<a name="line.334"></a> +<span class="sourceLineNo">335</span> BlankNodeOrIRI b1Charlie = whoIsWho.get("\"Charlie\"");<a name="line.335"></a> +<span class="sourceLineNo">336</span> assertNotNull(b1Charlie);<a name="line.336"></a> +<span class="sourceLineNo">337</span> BlankNodeOrIRI b2Dave = whoIsWho.get("\"Dave\"");<a name="line.337"></a> +<span class="sourceLineNo">338</span> assertNotNull(b2Dave);<a name="line.338"></a> +<span class="sourceLineNo">339</span><a name="line.339"></a> +<span class="sourceLineNo">340</span> // All blank nodes should differ<a name="line.340"></a> +<span class="sourceLineNo">341</span> notEquals(b1Alice, b2Bob);<a name="line.341"></a> +<span class="sourceLineNo">342</span> notEquals(b1Alice, b1Charlie);<a name="line.342"></a> +<span class="sourceLineNo">343</span> notEquals(b1Alice, b2Dave);<a name="line.343"></a> +<span class="sourceLineNo">344</span> notEquals(b2Bob, b1Charlie);<a name="line.344"></a> +<span class="sourceLineNo">345</span> notEquals(b2Bob, b2Dave);<a name="line.345"></a> +<span class="sourceLineNo">346</span> notEquals(b1Charlie, b2Dave);<a name="line.346"></a> +<span class="sourceLineNo">347</span><a name="line.347"></a> +<span class="sourceLineNo">348</span> // And we should be able to query with them again<a name="line.348"></a> +<span class="sourceLineNo">349</span> // as we got them back from g3<a name="line.349"></a> +<span class="sourceLineNo">350</span> IRI hasChild = factory.createIRI("http://example.com/hasChild";);<a name="line.350"></a> +<span class="sourceLineNo">351</span> // FIXME: Check graph2 BlankNode in these ..?<a name="line.351"></a> +<span class="sourceLineNo">352</span> assertTrue(g3.contains(null, b1Alice, hasChild, b2Bob));<a name="line.352"></a> +<span class="sourceLineNo">353</span> assertTrue(g3.contains(null, b2Dave, hasChild, b1Charlie));<a name="line.353"></a> +<span class="sourceLineNo">354</span> // But not<a name="line.354"></a> +<span class="sourceLineNo">355</span> assertFalse(g3.contains(null, b1Alice, hasChild, b1Alice));<a name="line.355"></a> +<span class="sourceLineNo">356</span> assertFalse(g3.contains(null, b1Alice, hasChild, b1Charlie));<a name="line.356"></a> +<span class="sourceLineNo">357</span> assertFalse(g3.contains(null, b1Alice, hasChild, b2Dave));<a name="line.357"></a> +<span class="sourceLineNo">358</span> // nor<a name="line.358"></a> +<span class="sourceLineNo">359</span> assertFalse(g3.contains(null, b2Dave, hasChild, b1Alice));<a name="line.359"></a> +<span class="sourceLineNo">360</span> assertFalse(g3.contains(null, b2Dave, hasChild, b1Alice));<a name="line.360"></a> +<span class="sourceLineNo">361</span><a name="line.361"></a> +<span class="sourceLineNo">362</span> // and these don't have any children (as far as we know)<a name="line.362"></a> +<span class="sourceLineNo">363</span> assertFalse(g3.contains(null, b2Bob, hasChild, null));<a name="line.363"></a> +<span class="sourceLineNo">364</span> assertFalse(g3.contains(null, b1Charlie, hasChild, null));<a name="line.364"></a> +<span class="sourceLineNo">365</span> }<a name="line.365"></a> +<span class="sourceLineNo">366</span><a name="line.366"></a> +<span class="sourceLineNo">367</span> private void notEquals(BlankNodeOrIRI node1, BlankNodeOrIRI node2) {<a name="line.367"></a> +<span class="sourceLineNo">368</span> assertFalse(node1.equals(node2));<a name="line.368"></a> +<span class="sourceLineNo">369</span> // in which case we should be able to assume<a name="line.369"></a> +<span class="sourceLineNo">370</span> // (as they are in the same dataset)<a name="line.370"></a> +<span class="sourceLineNo">371</span> assertFalse(node1.ntriplesString().equals(node2.ntriplesString()));<a name="line.371"></a> +<span class="sourceLineNo">372</span> }<a name="line.372"></a> +<span class="sourceLineNo">373</span><a name="line.373"></a> +<span class="sourceLineNo">374</span> /**<a name="line.374"></a> +<span class="sourceLineNo">375</span> * Add all quads from the source to the target.<a name="line.375"></a> +<span class="sourceLineNo">376</span> * <p><a name="line.376"></a> +<span class="sourceLineNo">377</span> * The quads may be copied in any order. No special conversion or<a name="line.377"></a> +<span class="sourceLineNo">378</span> * adaptation of {@link BlankNode}s are performed.<a name="line.378"></a> +<span class="sourceLineNo">379</span> *<a name="line.379"></a> +<span class="sourceLineNo">380</span> * @param source<a name="line.380"></a> +<span class="sourceLineNo">381</span> * Source Dataset to copy quads from<a name="line.381"></a> +<span class="sourceLineNo">382</span> * @param target<a name="line.382"></a> +<span class="sourceLineNo">383</span> * Target Dataset where quads will be added<a name="line.383"></a> +<span class="sourceLineNo">384</span> */<a name="line.384"></a> +<span class="sourceLineNo">385</span> private void addAllQuads(Dataset source, Dataset target) {<a name="line.385"></a> +<span class="sourceLineNo">386</span><a name="line.386"></a> +<span class="sourceLineNo">387</span> // unordered() as we don't need to preserve quad order<a name="line.387"></a> +<span class="sourceLineNo">388</span> // sequential() as we don't (currently) require target Dataset to be<a name="line.388"></a> +<span class="sourceLineNo">389</span> // thread-safe<a name="line.389"></a> +<span class="sourceLineNo">390</span><a name="line.390"></a> +<span class="sourceLineNo">391</span> try (Stream<? extends Quad> stream = source.stream()) {<a name="line.391"></a> +<span class="sourceLineNo">392</span> stream.unordered().sequential().forEach(t -> target.add(t));<a name="line.392"></a> +<span class="sourceLineNo">393</span> }<a name="line.393"></a> +<span class="sourceLineNo">394</span> }<a name="line.394"></a> +<span class="sourceLineNo">395</span><a name="line.395"></a> +<span class="sourceLineNo">396</span> /**<a name="line.396"></a> +<span class="sourceLineNo">397</span> * Make a new dataset with two BlankNodes - each with a different<a name="line.397"></a> +<span class="sourceLineNo">398</span> * uniqueReference<a name="line.398"></a> +<span class="sourceLineNo">399</span> */<a name="line.399"></a> +<span class="sourceLineNo">400</span> private Dataset createDataset1() {<a name="line.400"></a> +<span class="sourceLineNo">401</span> RDF factory1 = createFactory();<a name="line.401"></a> +<span class="sourceLineNo">402</span><a name="line.402"></a> +<span class="sourceLineNo">403</span> IRI name = factory1.createIRI("http://xmlns.com/foaf/0.1/name";);<a name="line.403"></a> +<span class="sourceLineNo">404</span> Dataset g1 = factory1.createDataset();<a name="line.404"></a> +<span class="sourceLineNo">405</span> BlankNode b1 = createOwnBlankNode("b1", "0240eaaa-d33e-4fc0-a4f1-169d6ced3680");<a name="line.405"></a> +<span class="sourceLineNo">406</span> g1.add(b1, b1, name, factory1.createLiteral("Alice"));<a name="line.406"></a> +<span class="sourceLineNo">407</span><a name="line.407"></a> +<span class="sourceLineNo">408</span> BlankNode b2 = createOwnBlankNode("b2", "9de7db45-0ce7-4b0f-a1ce-c9680ffcfd9f");<a name="line.408"></a> +<span class="sourceLineNo">409</span> g1.add(b2, b2, name, factory1.createLiteral("Bob"));<a name="line.409"></a> +<span class="sourceLineNo">410</span><a name="line.410"></a> +<span class="sourceLineNo">411</span> IRI hasChild = factory1.createIRI("http://example.com/hasChild";);<a name="line.411"></a> +<span class="sourceLineNo">412</span> g1.add(null, b1, hasChild, b2);<a name="line.412"></a> +<span class="sourceLineNo">413</span><a name="line.413"></a> +<span class="sourceLineNo">414</span> return g1;<a name="line.414"></a> +<span class="sourceLineNo">415</span> }<a name="line.415"></a> +<span class="sourceLineNo">416</span><a name="line.416"></a> +<span class="sourceLineNo">417</span> /**<a name="line.417"></a> +<span class="sourceLineNo">418</span> * Create a different implementation of BlankNode to be tested with<a name="line.418"></a> +<span class="sourceLineNo">419</span> * dataset.add(a,b,c); (the implementation may or may not then choose to<a name="line.419"></a> +<span class="sourceLineNo">420</span> * translate such to its own instances)<a name="line.420"></a> +<span class="sourceLineNo">421</span> * <a name="line.421"></a> +<span class="sourceLineNo">422</span> * @param name<a name="line.422"></a> +<span class="sourceLineNo">423</span> * @return<a name="line.423"></a> +<span class="sourceLineNo">424</span> */<a name="line.424"></a> +<span class="sourceLineNo">425</span> private BlankNode createOwnBlankNode(String name, String uuid) {<a name="line.425"></a> +<span class="sourceLineNo">426</span> return new BlankNode() {<a name="line.426"></a> +<span class="sourceLineNo">427</span> @Override<a name="line.427"></a> +<span class="sourceLineNo">428</span> public String ntriplesString() { <a name="line.428"></a> +<span class="sourceLineNo">429</span> return "_: " + name;<a name="line.429"></a> +<span class="sourceLineNo">430</span> }<a name="line.430"></a> +<span class="sourceLineNo">431</span><a name="line.431"></a> +<span class="sourceLineNo">432</span> @Override<a name="line.432"></a> +<span class="sourceLineNo">433</span> public String uniqueReference() {<a name="line.433"></a> +<span class="sourceLineNo">434</span> return uuid;<a name="line.434"></a> +<span class="sourceLineNo">435</span> }<a name="line.435"></a> +<span class="sourceLineNo">436</span><a name="line.436"></a> +<span class="sourceLineNo">437</span> @Override<a name="line.437"></a> +<span class="sourceLineNo">438</span> public int hashCode() {<a name="line.438"></a> +<span class="sourceLineNo">439</span> return uuid.hashCode();<a name="line.439"></a> +<span class="sourceLineNo">440</span> }<a name="line.440"></a> +<span class="sourceLineNo">441</span><a name="line.441"></a> +<span class="sourceLineNo">442</span> @Override<a name="line.442"></a> +<span class="sourceLineNo">443</span> public boolean equals(Object obj) {<a name="line.443"></a> +<span class="sourceLineNo">444</span> if (!(obj instanceof BlankNode)) {<a name="line.444"></a> +<span class="sourceLineNo">445</span> return false;<a name="line.445"></a> +<span class="sourceLineNo">446</span> }<a name="line.446"></a> +<span class="sourceLineNo">447</span> BlankNode other = (BlankNode) obj;<a name="line.447"></a> +<span class="sourceLineNo">448</span> return uuid.equals(other.uniqueReference());<a name="line.448"></a> +<span class="sourceLineNo">449</span> }<a name="line.449"></a> +<span class="sourceLineNo">450</span> };<a name="line.450"></a> +<span class="sourceLineNo">451</span> }<a name="line.451"></a> +<span class="sourceLineNo">452</span><a name="line.452"></a> +<span class="sourceLineNo">453</span> private Dataset createDataset2() {<a name="line.453"></a> +<span class="sourceLineNo">454</span> RDF factory2 = createFactory();<a name="line.454"></a> +<span class="sourceLineNo">455</span> IRI name = factory2.createIRI("http://xmlns.com/foaf/0.1/name";);<a name="line.455"></a> +<span class="sourceLineNo">456</span><a name="line.456"></a> +<span class="sourceLineNo">457</span> Dataset g2 = factory2.createDataset();<a name="line.457"></a> +<span class="sourceLineNo">458</span><a name="line.458"></a> +<span class="sourceLineNo">459</span> BlankNode b1 = createOwnBlankNode("b1", "bc8d3e45-a08f-421d-85b3-c25b373abf87");<a name="line.459"></a> +<span class="sourceLineNo">460</span> g2.add(b1, b1, name, factory2.createLiteral("Charlie"));<a name="line.460"></a> +<span class="sourceLineNo">461</span><a name="line.461"></a> +<span class="sourceLineNo">462</span> BlankNode b2 = createOwnBlankNode("b2", "2209097a-5078-4b03-801a-6a2d2f50d739");<a name="line.462"></a> +<span class="sourceLineNo">463</span> g2.add(b2, b2, name, factory2.createLiteral("Dave"));<a name="line.463"></a> +<span class="sourceLineNo">464</span><a name="line.464"></a> +<span class="sourceLineNo">465</span> IRI hasChild = factory2.createIRI("http://example.com/hasChild";);<a name="line.465"></a> +<span class="sourceLineNo">466</span> // NOTE: Opposite direction of loadDataset1<a name="line.466"></a> +<span class="sourceLineNo">467</span> g2.add(b2, b2, hasChild, b1);<a name="line.467"></a> +<span class="sourceLineNo">468</span> return g2;<a name="line.468"></a> +<span class="sourceLineNo">469</span> }<a name="line.469"></a> +<span class="sourceLineNo">470</span> <a name="line.470"></a> +<span class="sourceLineNo">471</span> /**<a name="line.471"></a> +<span class="sourceLineNo">472</span> * Ensure {@link Dataset#getGraphNames()} contains our two graphs.<a name="line.472"></a> +<span class="sourceLineNo">473</span> * <a name="line.473"></a> +<span class="sourceLineNo">474</span> * @throws Exception<a name="line.474"></a> +<span class="sourceLineNo">475</span> * If test fails<a name="line.475"></a> +<span class="sourceLineNo">476</span> */<a name="line.476"></a> +<span class="sourceLineNo">477</span> @Test<a name="line.477"></a> +<span class="sourceLineNo">478</span> public void getGraphNames() throws Exception {<a name="line.478"></a> +<span class="sourceLineNo">479</span> Set<BlankNodeOrIRI> names = dataset.getGraphNames().collect(Collectors.toSet()); <a name="line.479"></a> +<span class="sourceLineNo">480</span> assertTrue("Can't find graph name " + graph1, names.contains(graph1));<a name="line.480"></a> +<span class="sourceLineNo">481</span> assertTrue("Found no quads in graph1", dataset.contains(Optional.of(graph1), null, null, null));<a name="line.481"></a> +<span class="sourceLineNo">482</span> <a name="line.482"></a> +<span class="sourceLineNo">483</span> Optional<BlankNodeOrIRI> graphName2 = dataset.getGraphNames().filter(BlankNode.class::isInstance).findAny();<a name="line.483"></a> +<span class="sourceLineNo">484</span> assertTrue("Could not find graph2-like BlankNode", graphName2.isPresent()); <a name="line.484"></a> +<span class="sourceLineNo">485</span> assertTrue("Found no quads in graph2", dataset.contains(graphName2, null, null, null));<a name="line.485"></a> +<span class="sourceLineNo">486</span><a name="line.486"></a> +<span class="sourceLineNo">487</span> // Some implementations like Virtuoso might have additional internal graphs,<a name="line.487"></a> +<span class="sourceLineNo">488</span> // so we can't assume this:<a name="line.488"></a> +<span class="sourceLineNo">489</span> //assertEquals(2, names.size());<a name="line.489"></a> +<span class="sourceLineNo">490</span> }<a name="line.490"></a> +<span class="sourceLineNo">491</span> <a name="line.491"></a> +<span class="sourceLineNo">492</span> @Test<a name="line.492"></a> +<span class="sourceLineNo">493</span> public void getGraph() throws Exception {<a name="line.493"></a> +<span class="sourceLineNo">494</span> Graph defaultGraph = dataset.getGraph();<a name="line.494"></a> +<span class="sourceLineNo">495</span> // TODO: Can we assume the default graph was empty before our new triples?<a name="line.495"></a> +<span class="sourceLineNo">496</span> assertEquals(2, defaultGraph.size());<a name="line.496"></a> +<span class="sourceLineNo">497</span> assertTrue(defaultGraph.contains(alice, isPrimaryTopicOf, graph1));<a name="line.497"></a> +<span class="sourceLineNo">498</span> // NOTE: graph2 is a BlankNode<a name="line.498"></a> +<span class="sourceLineNo">499</span> assertTrue(defaultGraph.contains(bob, isPrimaryTopicOf, null));<a name="line.499"></a> +<span class="sourceLineNo">500</span> }<a name="line.500"></a> +<span class="sourceLineNo">501</span><a name="line.501"></a> +<span class="sourceLineNo">502</span><a name="line.502"></a> +<span class="sourceLineNo">503</span> @Test<a name="line.503"></a> +<span class="sourceLineNo">504</span> public void getGraphNull() throws Exception {<a name="line.504"></a> +<span class="sourceLineNo">505</span> // Default graph should be present<a name="line.505"></a> +<span class="sourceLineNo">506</span> Graph defaultGraph = dataset.getGraph(null).get();<a name="line.506"></a> +<span class="sourceLineNo">507</span> // TODO: Can we assume the default graph was empty before our new triples?<a name="line.507"></a> +<span class="sourceLineNo">508</span> assertEquals(2, defaultGraph.size());<a name="line.508"></a> +<span class="sourceLineNo">509</span> assertTrue(defaultGraph.contains(alice, isPrimaryTopicOf, graph1));<a name="line.509"></a> +<span class="sourceLineNo">510</span> // NOTE: wildcard as graph2 is a (potentially mapped) BlankNode<a name="line.510"></a> +<span class="sourceLineNo">511</span> assertTrue(defaultGraph.contains(bob, isPrimaryTopicOf, null));<a name="line.511"></a> +<span class="sourceLineNo">512</span> }<a name="line.512"></a> +<span class="sourceLineNo">513</span> <a name="line.513"></a> +<span class="sourceLineNo">514</span><a name="line.514"></a> +<span class="sourceLineNo">515</span> @Test<a name="line.515"></a> +<span class="sourceLineNo">516</span> public void getGraph1() throws Exception {<a name="line.516"></a> +<span class="sourceLineNo">517</span> // graph1 should be present<a name="line.517"></a> +<span class="sourceLineNo">518</span> Graph g1 = dataset.getGraph(graph1).get();<a name="line.518"></a> +<span class="sourceLineNo">519</span> assertEquals(4, g1.size());<a name="line.519"></a> +<span class="sourceLineNo">520</span> <a name="line.520"></a> +<span class="sourceLineNo">521</span> assertTrue(g1.contains(alice, name, aliceName));<a name="line.521"></a> +<span class="sourceLineNo">522</span> assertTrue(g1.contains(alice, knows, bob));<a name="line.522"></a> +<span class="sourceLineNo">523</span> assertTrue(g1.contains(alice, member, null));<a name="line.523"></a> +<span class="sourceLineNo">524</span> assertTrue(g1.contains(null, name, secretClubName));<a name="line.524"></a> +<span class="sourceLineNo">525</span> }<a name="line.525"></a> +<span class="sourceLineNo">526</span><a name="line.526"></a> +<span class="sourceLineNo">527</span> @Test<a name="line.527"></a> +<span class="sourceLineNo">528</span> public void getGraph2() throws Exception {<a name="line.528"></a> +<span class="sourceLineNo">529</span> // graph2 should be present, even if is named by a BlankNode<a name="line.529"></a> +<span class="sourceLineNo">530</span> // We'll look up the potentially mapped graph2 blanknode<a name="line.530"></a> +<span class="sourceLineNo">531</span> BlankNodeOrIRI graph2Name = (BlankNodeOrIRI) dataset.stream(Optional.empty(), bob, isPrimaryTopicOf, null)<a name="line.531"></a> +<span class="sourceLineNo">532</span> .map(Quad::getObject).findAny().get();<a name="line.532"></a> +<span class="sourceLineNo">533</span> <a name="line.533"></a> +<span class="sourceLineNo">534</span> Graph g2 = dataset.getGraph(graph2Name).get();<a name="line.534"></a> +<span class="sourceLineNo">535</span> assertEquals(4, g2.size());<a name="line.535"></a> +<span class="sourceLineNo">536</span> Triple bobNameTriple = bobNameQuad.asTriple();<a name="line.536"></a> +<span class="sourceLineNo">537</span> assertTrue(g2.contains(bobNameTriple));<a name="line.537"></a> +<span class="sourceLineNo">538</span> assertTrue(g2.contains(bob, member, bnode1));<a name="line.538"></a> +<span class="sourceLineNo">539</span> assertTrue(g2.contains(bob, member, bnode2));<a name="line.539"></a> +<span class="sourceLineNo">540</span> assertFalse(g2.contains(bnode1, name, secretClubName));<a name="line.540"></a> +<span class="sourceLineNo">541</span> assertTrue(g2.contains(bnode2, name, companyName));<a name="line.541"></a> +<span class="sourceLineNo">542</span> }<a name="line.542"></a> +<span class="sourceLineNo">543</span> <a name="line.543"></a> +<span class="sourceLineNo">544</span><a name="line.544"></a> +<span class="sourceLineNo">545</span> <a name="line.545"></a> +<span class="sourceLineNo">546</span> /**<a name="line.546"></a> +<span class="sourceLineNo">547</span> * An attempt to use the Java 8 streams to look up a more complicated query.<a name="line.547"></a> +<span class="sourceLineNo">548</span> * <p><a name="line.548"></a> +<span class="sourceLineNo">549</span> * FYI, the equivalent SPARQL version (untested):<a name="line.549"></a> +<span class="sourceLineNo">550</span> * <a name="line.550"></a> +<span class="sourceLineNo">551</span> * <pre><a name="line.551"></a> +<span class="sourceLineNo">552</span> * SELECT ?orgName WHERE {<a name="line.552"></a> +<span class="sourceLineNo">553</span> * ?org foaf:name ?orgName .<a name="line.553"></a> +<span class="sourceLineNo">554</span> * ?alice foaf:member ?org .<a name="line.554"></a> +<span class="sourceLineNo">555</span> * ?bob foaf:member ?org .<a name="line.555"></a> +<span class="sourceLineNo">556</span> * ?alice foaf:knows ?bob .<a name="line.556"></a> +<span class="sourceLineNo">557</span> * FILTER NOT EXIST { ?bob foaf:knows ?alice }<a name="line.557"></a> +<span class="sourceLineNo">558</span> * }<a name="line.558"></a> +<span class="sourceLineNo">559</span> * </pre><a name="line.559"></a> +<span class="sourceLineNo">560</span> *<a name="line.560"></a> +<span class="sourceLineNo">561</span> * @throws Exception If test fails<a name="line.561"></a> +<span class="sourceLineNo">562</span> */<a name="line.562"></a> +<span class="sourceLineNo">563</span> @Test<a name="line.563"></a> +<span class="sourceLineNo">564</span> public void whyJavaStreamsMightNotTakeOverFromSparql() throws Exception {<a name="line.564"></a> +<span class="sourceLineNo">565</span> Assume.assumeNotNull(bnode1, bnode2, secretClubName);<a name="line.565"></a> +<span class="sourceLineNo">566</span> // Find a secret organizations<a name="line.566"></a> +<span class="sourceLineNo">567</span> try (Stream<? extends Quad> stream = dataset.stream(null, null, knows, null)) {<a name="line.567"></a> +<span class="sourceLineNo">568</span> assertEquals("\"The Secret Club\"",<a name="line.568"></a> +<span class="sourceLineNo">569</span> // Find One-way "knows"<a name="line.569"></a> +<span class="sourceLineNo">570</span> stream.filter(t -> !dataset.contains(null, (BlankNodeOrIRI) t.getObject(), knows, t.getSubject()))<a name="line.570"></a> +<span class="sourceLineNo">571</span> .map(knowsQuad -> {<a name="line.571"></a> +<span class="sourceLineNo">572</span> try (Stream<? extends Quad> memberOf = dataset<a name="line.572"></a> +<span class="sourceLineNo">573</span> // and those they know, what are they<a name="line.573"></a> +<span class="sourceLineNo">574</span> // member of?<a name="line.574"></a> +<span class="sourceLineNo">575</span> .stream(null, (BlankNodeOrIRI) knowsQuad.getObject(), member, null)) {<a name="line.575"></a> +<span class="sourceLineNo">576</span> return memberOf<a name="line.576"></a> +<span class="sourceLineNo">577</span> // keep those which first-guy is a<a name="line.577"></a> +<span class="sourceLineNo">578</span> // member of<a name="line.578"></a> +<span class="sourceLineNo">579</span> .filter(memberQuad -> dataset.contains(null, knowsQuad.getSubject(), member,<a name="line.579"></a> +<span class="sourceLineNo">580</span> // First hit is good enough<a name="line.580"></a> +<span class="sourceLineNo">581</span> memberQuad.getObject()))<a name="line.581"></a> +<span class="sourceLineNo">582</span> .findFirst().get().getObject();<a name="line.582"></a> +<span class="sourceLineNo">583</span> }<a name="line.583"></a> +<span class="sourceLineNo">584</span> })<a name="line.584"></a> +<span class="sourceLineNo">585</span> // then look up the name of that org<a name="line.585"></a> +<span class="sourceLineNo">586</span> .map(org -> {<a name="line.586"></a> +<span class="sourceLineNo">587</span> try (Stream<? extends Quad> orgName = dataset.stream(null, (BlankNodeOrIRI) org, name,<a name="line.587"></a> +<span class="sourceLineNo">588</span> null)) {<a name="line.588"></a> +<span class="sourceLineNo">589</span> return orgName.findFirst().get().getObject().ntriplesString();<a name="line.589"></a> +<span class="sourceLineNo">590</span> }<a name="line.590"></a> +<span class="sourceLineNo">591</span> }).findFirst().get());<a name="line.591"></a> +<span class="sourceLineNo">592</span> }<a name="line.592"></a> +<span class="sourceLineNo">593</span> }<a name="line.593"></a> +<span class="sourceLineNo">594</span>}<a name="line.594"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html> \ No newline at end of file
