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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright (C) 2008-2013, fluid Operations AG<a name="line.2"></a>
<span class="sourceLineNo">003</span> *<a name="line.3"></a>
<span class="sourceLineNo">004</span> * FedX is free software: you can redistribute it and/or modify<a name="line.4"></a>
<span class="sourceLineNo">005</span> * it under the terms of the GNU Affero General Public License as<a name="line.5"></a>
<span class="sourceLineNo">006</span> * published by the Free Software Foundation, either version 3 of the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * License, or (at your option) any later version.<a name="line.7"></a>
<span class="sourceLineNo">008</span> * <a name="line.8"></a>
<span class="sourceLineNo">009</span> * This program is distributed in the hope that it will be useful,<a name="line.9"></a>
<span class="sourceLineNo">010</span> * but WITHOUT ANY WARRANTY; without even the implied warranty of<a name="line.10"></a>
<span class="sourceLineNo">011</span> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the<a name="line.11"></a>
<span class="sourceLineNo">012</span> * GNU Affero General Public License for more details.<a name="line.12"></a>
<span class="sourceLineNo">013</span> * <a name="line.13"></a>
<span class="sourceLineNo">014</span> * You should have received a copy of the GNU Affero General Public License<a name="line.14"></a>
<span class="sourceLineNo">015</span> * along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.<a name="line.15"></a>
<span class="sourceLineNo">016</span> */<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>package com.fluidops.fedx.util;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.io.File;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.FileReader;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.net.MalformedURLException;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.net.URL;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.openrdf.model.Graph;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.openrdf.model.Model;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.openrdf.model.Resource;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.openrdf.model.Statement;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.openrdf.model.Value;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.openrdf.model.impl.LiteralImpl;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.openrdf.model.impl.TreeModel;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.openrdf.model.impl.URIImpl;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.openrdf.rio.RDFFormat;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.openrdf.rio.RDFHandler;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.openrdf.rio.RDFHandlerException;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.openrdf.rio.RDFParser;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.openrdf.rio.Rio;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>import com.fluidops.fedx.Config;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import com.fluidops.fedx.exception.FedXException;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import com.fluidops.fedx.exception.FedXRuntimeException;<a name="line.44"></a>
<span class="sourceLineNo">045</span>import com.fluidops.fedx.provider.EndpointProvider;<a name="line.45"></a>
<span class="sourceLineNo">046</span>import com.fluidops.fedx.provider.NativeGraphRepositoryInformation;<a name="line.46"></a>
<span class="sourceLineNo">047</span>import com.fluidops.fedx.provider.NativeStoreProvider;<a name="line.47"></a>
<span class="sourceLineNo">048</span>import com.fluidops.fedx.provider.RemoteRepositoryGraphRepositoryInformation;<a name="line.48"></a>
<span class="sourceLineNo">049</span>import com.fluidops.fedx.provider.RemoteRepositoryProvider;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import com.fluidops.fedx.provider.RepositoryInformation;<a name="line.50"></a>
<span class="sourceLineNo">051</span>import com.fluidops.fedx.provider.SPARQLGraphRepositoryInformation;<a name="line.51"></a>
<span class="sourceLineNo">052</span>import com.fluidops.fedx.provider.SPARQLProvider;<a name="line.52"></a>
<span class="sourceLineNo">053</span>import com.fluidops.fedx.structures.Endpoint;<a name="line.53"></a>
<span class="sourceLineNo">054</span>import com.fluidops.fedx.structures.Endpoint.EndpointType;<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>/**<a name="line.58"></a>
<span class="sourceLineNo">059</span> * Utility class providing various methods to create Endpoints to be used as federation members.<a name="line.59"></a>
<span class="sourceLineNo">060</span> * <a name="line.60"></a>
<span class="sourceLineNo">061</span> * @author Andreas Schwarte<a name="line.61"></a>
<span class="sourceLineNo">062</span> *<a name="line.62"></a>
<span class="sourceLineNo">063</span> */<a name="line.63"></a>
<span class="sourceLineNo">064</span>public class EndpointFactory {<a name="line.64"></a>
<span class="sourceLineNo">065</span><a name="line.65"></a>
<span class="sourceLineNo">066</span>        <a name="line.66"></a>
<span class="sourceLineNo">067</span>        /**<a name="line.67"></a>
<span class="sourceLineNo">068</span>         * Construct a SPARQL endpoint using the the provided information.<a name="line.68"></a>
<span class="sourceLineNo">069</span>         * <a name="line.69"></a>
<span class="sourceLineNo">070</span>         * @param name<a name="line.70"></a>
<span class="sourceLineNo">071</span>         *                      a descriptive name, e.g. http://dbpedia<a name="line.71"></a>
<span class="sourceLineNo">072</span>         * @param endpoint<a name="line.72"></a>
<span class="sourceLineNo">073</span>         *                      the URL of the SPARQL endpoint, e.g. http://dbpedia.org/sparql<a name="line.73"></a>
<span class="sourceLineNo">074</span>         * <a name="line.74"></a>
<span class="sourceLineNo">075</span>         * @return<a name="line.75"></a>
<span class="sourceLineNo">076</span>         *              an initialized {@link Endpoint} containing the repository<a name="line.76"></a>
<span class="sourceLineNo">077</span>         * <a name="line.77"></a>
<span class="sourceLineNo">078</span>         * @throws Exception<a name="line.78"></a>
<span class="sourceLineNo">079</span>         */<a name="line.79"></a>
<span class="sourceLineNo">080</span>        public static Endpoint loadSPARQLEndpoint(String name, String endpoint) throws FedXException {<a name="line.80"></a>
<span class="sourceLineNo">081</span>                <a name="line.81"></a>
<span class="sourceLineNo">082</span>                EndpointProvider repProvider = new SPARQLProvider();<a name="line.82"></a>
<span class="sourceLineNo">083</span>                String id = "sparql_" + endpoint.replace("http://", "").replace("/", "_");<a name="line.83"></a>
<span class="sourceLineNo">084</span>                return repProvider.loadEndpoint( new RepositoryInformation(id, name, endpoint, EndpointType.SparqlEndpoint));           <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>        /**<a name="line.88"></a>
<span class="sourceLineNo">089</span>         * Construct a SPARQL endpoint using the the provided information and the host of the url as name.<a name="line.89"></a>
<span class="sourceLineNo">090</span>         * <a name="line.90"></a>
<span class="sourceLineNo">091</span>         * @param endpoint<a name="line.91"></a>
<span class="sourceLineNo">092</span>         *                      the URL of the SPARQL endpoint, e.g. http://dbpedia.org/sparql<a name="line.92"></a>
<span class="sourceLineNo">093</span>         * <a name="line.93"></a>
<span class="sourceLineNo">094</span>         * @return<a name="line.94"></a>
<span class="sourceLineNo">095</span>         *              an initialized {@link Endpoint} containing the repository<a name="line.95"></a>
<span class="sourceLineNo">096</span>         * <a name="line.96"></a>
<span class="sourceLineNo">097</span>         * @throws FedXException<a name="line.97"></a>
<span class="sourceLineNo">098</span>         */<a name="line.98"></a>
<span class="sourceLineNo">099</span>        public static Endpoint loadSPARQLEndpoint(String endpoint) throws FedXException {<a name="line.99"></a>
<span class="sourceLineNo">100</span>                try {<a name="line.100"></a>
<span class="sourceLineNo">101</span>                        String id = new URL(endpoint).getHost();<a name="line.101"></a>
<span class="sourceLineNo">102</span>                        if (id.equals("localhost"))<a name="line.102"></a>
<span class="sourceLineNo">103</span>                                id = id + "_" + new URL(endpoint).getPort();<a name="line.103"></a>
<span class="sourceLineNo">104</span>                        return loadSPARQLEndpoint("http://"+id, endpoint);<a name="line.104"></a>
<span class="sourceLineNo">105</span>                } catch (MalformedURLException e) {<a name="line.105"></a>
<span class="sourceLineNo">106</span>                        throw new FedXException("Malformed URL: " + endpoint);<a name="line.106"></a>
<span class="sourceLineNo">107</span>                }<a name="line.107"></a>
<span class="sourceLineNo">108</span>        }<a name="line.108"></a>
<span class="sourceLineNo">109</span>        <a name="line.109"></a>
<span class="sourceLineNo">110</span>        <a name="line.110"></a>
<span class="sourceLineNo">111</span>        public static Endpoint loadRemoteRepository(String repositoryServer, String repositoryName) throws FedXException {<a name="line.111"></a>
<span class="sourceLineNo">112</span>                EndpointProvider repProvider = new RemoteRepositoryProvider();<a name="line.112"></a>
<span class="sourceLineNo">113</span>                return repProvider.loadEndpoint( new RemoteRepositoryGraphRepositoryInformation(repositoryServer, repositoryName));             <a name="line.113"></a>
<span class="sourceLineNo">114</span>        <a name="line.114"></a>
<span class="sourceLineNo">115</span>        }<a name="line.115"></a>
<span class="sourceLineNo">116</span>        <a name="line.116"></a>
<span class="sourceLineNo">117</span>        /**<a name="line.117"></a>
<span class="sourceLineNo">118</span>         * Construct a NativeStore endpoint using the provided information.<a name="line.118"></a>
<span class="sourceLineNo">119</span>         * <a name="line.119"></a>
<span class="sourceLineNo">120</span>         * @param name<a name="line.120"></a>
<span class="sourceLineNo">121</span>         *                      a descriptive name, e.g. http://dbpedia<a name="line.121"></a>
<span class="sourceLineNo">122</span>         * @param location<a name="line.122"></a>
<span class="sourceLineNo">123</span>         *                      the location of the data store, either absolute or relative to {@link Config#getBaseDir()}<a name="line.123"></a>
<span class="sourceLineNo">124</span>         * <a name="line.124"></a>
<span class="sourceLineNo">125</span>         * @return<a name="line.125"></a>
<span class="sourceLineNo">126</span>         *              an initialized endpoint containing the repository<a name="line.126"></a>
<span class="sourceLineNo">127</span>         * <a name="line.127"></a>
<span class="sourceLineNo">128</span>         * @throws Exception<a name="line.128"></a>
<span class="sourceLineNo">129</span>         */<a name="line.129"></a>
<span class="sourceLineNo">130</span>        public static Endpoint loadNativeEndpoint(String name, String location) throws FedXException {<a name="line.130"></a>
<span class="sourceLineNo">131</span>                <a name="line.131"></a>
<span class="sourceLineNo">132</span>                EndpointProvider repProvider = new NativeStoreProvider();<a name="line.132"></a>
<span class="sourceLineNo">133</span>                String id = new File(location).getName();<a name="line.133"></a>
<span class="sourceLineNo">134</span>                return repProvider.loadEndpoint( new RepositoryInformation(id, name, location, EndpointType.NativeStore) );<a name="line.134"></a>
<span class="sourceLineNo">135</span>        }<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>         * Load NativeStore from location relative to baseDir<a name="line.138"></a>
<span class="sourceLineNo">139</span>         * <a name="line.139"></a>
<span class="sourceLineNo">140</span>         * @param name<a name="line.140"></a>
<span class="sourceLineNo">141</span>         * @param location<a name="line.141"></a>
<span class="sourceLineNo">142</span>         * @param baseDir<a name="line.142"></a>
<span class="sourceLineNo">143</span>         * @return<a name="line.143"></a>
<span class="sourceLineNo">144</span>         * @throws Exception<a name="line.144"></a>
<span class="sourceLineNo">145</span>         */<a name="line.145"></a>
<span class="sourceLineNo">146</span>        public static Endpoint loadNativeEndpoint(String name, String location, File baseDir) throws FedXException {<a name="line.146"></a>
<span class="sourceLineNo">147</span>                return loadNativeEndpoint(name, baseDir.getAbsolutePath() + "/" + location);<a name="line.147"></a>
<span class="sourceLineNo">148</span>        }<a name="line.148"></a>
<span class="sourceLineNo">149</span>        <a name="line.149"></a>
<span class="sourceLineNo">150</span>        <a name="line.150"></a>
<span class="sourceLineNo">151</span>        /**<a name="line.151"></a>
<span class="sourceLineNo">152</span>         * Construct a NativeStore endpoint using the provided information and the file location as name.<a name="line.152"></a>
<span class="sourceLineNo">153</span>         * Note: "http://" is prepended to use standard names<a name="line.153"></a>
<span class="sourceLineNo">154</span>         * <a name="line.154"></a>
<span class="sourceLineNo">155</span>         * @param location<a name="line.155"></a>
<span class="sourceLineNo">156</span>         *                      the location of the data store<a name="line.156"></a>
<span class="sourceLineNo">157</span>         * <a name="line.157"></a>
<span class="sourceLineNo">158</span>         * @return<a name="line.158"></a>
<span class="sourceLineNo">159</span>         *              an initialized endpoint containing the repository<a name="line.159"></a>
<span class="sourceLineNo">160</span>         * <a name="line.160"></a>
<span class="sourceLineNo">161</span>         * @throws Exception<a name="line.161"></a>
<span class="sourceLineNo">162</span>         */<a name="line.162"></a>
<span class="sourceLineNo">163</span>        public static Endpoint loadNativeEndpoint(String location) throws FedXException {<a name="line.163"></a>
<span class="sourceLineNo">164</span>                return loadNativeEndpoint("http://" + new File(location).getName(), location);<a name="line.164"></a>
<span class="sourceLineNo">165</span>        }<a name="line.165"></a>
<span class="sourceLineNo">166</span>        <a name="line.166"></a>
<span class="sourceLineNo">167</span>        <a name="line.167"></a>
<span class="sourceLineNo">168</span>        <a name="line.168"></a>
<span class="sourceLineNo">169</span>        /**<a name="line.169"></a>
<span class="sourceLineNo">170</span>         * Utility function to load federation members from a data configuration file. A data configuration <a name="line.170"></a>
<span class="sourceLineNo">171</span>         * file provides information about federation members in form of ntriples. Currently the types<a name="line.171"></a>
<span class="sourceLineNo">172</span>         * NativeStore and SPARQLEndpoint are supported. For details please refer to the documentation<a name="line.172"></a>
<span class="sourceLineNo">173</span>         * in {@link NativeGraphRepositoryInformation} and {@link SPARQLGraphRepositoryInformation}.<a name="line.173"></a>
<span class="sourceLineNo">174</span>         * <a name="line.174"></a>
<span class="sourceLineNo">175</span>         * @param dataConfig<a name="line.175"></a>
<span class="sourceLineNo">176</span>         * <a name="line.176"></a>
<span class="sourceLineNo">177</span>         * @return<a name="line.177"></a>
<span class="sourceLineNo">178</span>         *                      a list of initialized endpoints, i.e. the federation members<a name="line.178"></a>
<span class="sourceLineNo">179</span>         * <a name="line.179"></a>
<span class="sourceLineNo">180</span>         * @throws IOException<a name="line.180"></a>
<span class="sourceLineNo">181</span>         * @throws Exception<a name="line.181"></a>
<span class="sourceLineNo">182</span>         */<a name="line.182"></a>
<span class="sourceLineNo">183</span>        public static List&lt;Endpoint&gt; loadFederationMembers(File dataConfig) throws FedXException {<a name="line.183"></a>
<span class="sourceLineNo">184</span>                <a name="line.184"></a>
<span class="sourceLineNo">185</span>                if (!dataConfig.exists())<a name="line.185"></a>
<span class="sourceLineNo">186</span>                        throw new FedXRuntimeException("File does not exist: " + dataConfig.getAbsolutePath());<a name="line.186"></a>
<span class="sourceLineNo">187</span>                <a name="line.187"></a>
<span class="sourceLineNo">188</span>                Model graph = new TreeModel();<a name="line.188"></a>
<span class="sourceLineNo">189</span>                RDFParser parser = Rio.createParser(RDFFormat.N3);<a name="line.189"></a>
<span class="sourceLineNo">190</span>                RDFHandler handler = new DefaultRDFHandler(graph);<a name="line.190"></a>
<span class="sourceLineNo">191</span>                parser.setRDFHandler(handler);<a name="line.191"></a>
<span class="sourceLineNo">192</span>                try {<a name="line.192"></a>
<span class="sourceLineNo">193</span>                        parser.parse(new FileReader(dataConfig), "http://fluidops.org/config#");<a name="line.193"></a>
<span class="sourceLineNo">194</span>                } catch (Exception e) {<a name="line.194"></a>
<span class="sourceLineNo">195</span>                        throw new FedXException("Unable to parse dataconfig " + dataConfig + ":" + e.getMessage());<a name="line.195"></a>
<span class="sourceLineNo">196</span>                } <a name="line.196"></a>
<span class="sourceLineNo">197</span>                <a name="line.197"></a>
<span class="sourceLineNo">198</span>                List&lt;Endpoint&gt; res = new ArrayList&lt;Endpoint&gt;();<a name="line.198"></a>
<span class="sourceLineNo">199</span>                for (Statement st : graph.filter(null, new URIImpl("http://fluidops.org/config#store"), null)) {<a name="line.199"></a>
<span class="sourceLineNo">200</span>                        Endpoint e = loadEndpoint(graph, st.getSubject(), st.getObject());<a name="line.200"></a>
<span class="sourceLineNo">201</span>                        res.add(e);<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>                return res;<a name="line.204"></a>
<span class="sourceLineNo">205</span>        }<a name="line.205"></a>
<span class="sourceLineNo">206</span>        <a name="line.206"></a>
<span class="sourceLineNo">207</span>        <a name="line.207"></a>
<span class="sourceLineNo">208</span>        public static Endpoint loadEndpoint(Model graph, Resource repNode, Value repType) throws FedXException {<a name="line.208"></a>
<span class="sourceLineNo">209</span>                <a name="line.209"></a>
<span class="sourceLineNo">210</span>                EndpointProvider repProvider;<a name="line.210"></a>
<span class="sourceLineNo">211</span>                <a name="line.211"></a>
<span class="sourceLineNo">212</span>                // NativeStore =&gt; Sesame native store implementation<a name="line.212"></a>
<span class="sourceLineNo">213</span>                if (repType.equals(new LiteralImpl("NativeStore"))){<a name="line.213"></a>
<span class="sourceLineNo">214</span>                        repProvider = new NativeStoreProvider();<a name="line.214"></a>
<span class="sourceLineNo">215</span>                        return repProvider.loadEndpoint( new NativeGraphRepositoryInformation(graph, repNode) );<a name="line.215"></a>
<span class="sourceLineNo">216</span>                } <a name="line.216"></a>
<span class="sourceLineNo">217</span>                <a name="line.217"></a>
<span class="sourceLineNo">218</span>                // SPARQL Repository =&gt; SPARQLRepository <a name="line.218"></a>
<span class="sourceLineNo">219</span>                else if (repType.equals(new LiteralImpl("SPARQLEndpoint"))){<a name="line.219"></a>
<span class="sourceLineNo">220</span>                        repProvider =  new SPARQLProvider();     <a name="line.220"></a>
<span class="sourceLineNo">221</span>                        return repProvider.loadEndpoint( new SPARQLGraphRepositoryInformation(graph, repNode) );<a name="line.221"></a>
<span class="sourceLineNo">222</span>                } <a name="line.222"></a>
<span class="sourceLineNo">223</span>                <a name="line.223"></a>
<span class="sourceLineNo">224</span>                // Remote Repository<a name="line.224"></a>
<span class="sourceLineNo">225</span>                else if (repType.equals(new LiteralImpl("RemoteRepository"))){<a name="line.225"></a>
<span class="sourceLineNo">226</span>                        repProvider =  new RemoteRepositoryProvider();   <a name="line.226"></a>
<span class="sourceLineNo">227</span>                        return repProvider.loadEndpoint( new RemoteRepositoryGraphRepositoryInformation(graph, repNode) );<a name="line.227"></a>
<span class="sourceLineNo">228</span>                } <a name="line.228"></a>
<span class="sourceLineNo">229</span>                <a name="line.229"></a>
<span class="sourceLineNo">230</span>                // other generic type<a name="line.230"></a>
<span class="sourceLineNo">231</span>                else if (repType.equals(new LiteralImpl("Other"))) {<a name="line.231"></a>
<span class="sourceLineNo">232</span>                        <a name="line.232"></a>
<span class="sourceLineNo">233</span>                        // TODO add reflection techniques to allow for flexibility<a name="line.233"></a>
<span class="sourceLineNo">234</span>                        throw new UnsupportedOperationException("Operation not yet supported for generic type.");<a name="line.234"></a>
<span class="sourceLineNo">235</span>                        <a name="line.235"></a>
<span class="sourceLineNo">236</span>                }<a name="line.236"></a>
<span class="sourceLineNo">237</span>                <a name="line.237"></a>
<span class="sourceLineNo">238</span>                else {<a name="line.238"></a>
<span class="sourceLineNo">239</span>                        throw new FedXRuntimeException("Repository type not supported: " + repType.stringValue());<a name="line.239"></a>
<span class="sourceLineNo">240</span>                }<a name="line.240"></a>
<span class="sourceLineNo">241</span>                <a name="line.241"></a>
<span class="sourceLineNo">242</span>                <a name="line.242"></a>
<span class="sourceLineNo">243</span>        }<a name="line.243"></a>
<span class="sourceLineNo">244</span>        <a name="line.244"></a>
<span class="sourceLineNo">245</span>        <a name="line.245"></a>
<span class="sourceLineNo">246</span>        <a name="line.246"></a>
<span class="sourceLineNo">247</span>        /**<a name="line.247"></a>
<span class="sourceLineNo">248</span>         * Construct a unique id for the provided SPARQL Endpoint, e.g<a name="line.248"></a>
<span class="sourceLineNo">249</span>         * <a name="line.249"></a>
<span class="sourceLineNo">250</span>         * http://dbpedia.org/ =&gt; %type%_dbpedia.org<a name="line.250"></a>
<span class="sourceLineNo">251</span>         * <a name="line.251"></a>
<span class="sourceLineNo">252</span>         * @param endpoint<a name="line.252"></a>
<span class="sourceLineNo">253</span>         * @param type<a name="line.253"></a>
<span class="sourceLineNo">254</span>         *                      the repository type, e.g. native, sparql, etc<a name="line.254"></a>
<span class="sourceLineNo">255</span>         * <a name="line.255"></a>
<span class="sourceLineNo">256</span>         * @return<a name="line.256"></a>
<span class="sourceLineNo">257</span>         */<a name="line.257"></a>
<span class="sourceLineNo">258</span>        public static String getId(String endpointID, String type) {<a name="line.258"></a>
<span class="sourceLineNo">259</span>                String id = endpointID.replace("http://", "");<a name="line.259"></a>
<span class="sourceLineNo">260</span>                id = id.replace("/", "_");<a name="line.260"></a>
<span class="sourceLineNo">261</span>                return type + "_" + id;<a name="line.261"></a>
<span class="sourceLineNo">262</span>        }<a name="line.262"></a>
<span class="sourceLineNo">263</span>        <a name="line.263"></a>
<span class="sourceLineNo">264</span>        <a name="line.264"></a>
<span class="sourceLineNo">265</span>        <a name="line.265"></a>
<span class="sourceLineNo">266</span>        protected static class DefaultRDFHandler implements RDFHandler {<a name="line.266"></a>
<span class="sourceLineNo">267</span><a name="line.267"></a>
<span class="sourceLineNo">268</span>                protected final Graph graph;<a name="line.268"></a>
<span class="sourceLineNo">269</span>                                <a name="line.269"></a>
<span class="sourceLineNo">270</span>                public DefaultRDFHandler(Graph graph) {<a name="line.270"></a>
<span class="sourceLineNo">271</span>                        super();<a name="line.271"></a>
<span class="sourceLineNo">272</span>                        this.graph = graph;<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>                @Override<a name="line.275"></a>
<span class="sourceLineNo">276</span>                public void endRDF() throws RDFHandlerException {<a name="line.276"></a>
<span class="sourceLineNo">277</span>                        ; // no-op<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>                @Override<a name="line.280"></a>
<span class="sourceLineNo">281</span>                public void handleComment(String comment) throws RDFHandlerException {<a name="line.281"></a>
<span class="sourceLineNo">282</span>                        ; // no-op                      <a name="line.282"></a>
<span class="sourceLineNo">283</span>                }<a name="line.283"></a>
<span class="sourceLineNo">284</span><a name="line.284"></a>
<span class="sourceLineNo">285</span>                @Override<a name="line.285"></a>
<span class="sourceLineNo">286</span>                public void handleNamespace(String prefix, String uri)<a name="line.286"></a>
<span class="sourceLineNo">287</span>                                throws RDFHandlerException {<a name="line.287"></a>
<span class="sourceLineNo">288</span>                        ; // no-op                      <a name="line.288"></a>
<span class="sourceLineNo">289</span>                }<a name="line.289"></a>
<span class="sourceLineNo">290</span><a name="line.290"></a>
<span class="sourceLineNo">291</span>                @Override<a name="line.291"></a>
<span class="sourceLineNo">292</span>                public void handleStatement(Statement st) throws RDFHandlerException {<a name="line.292"></a>
<span class="sourceLineNo">293</span>                        graph.add(st);                  <a name="line.293"></a>
<span class="sourceLineNo">294</span>                }<a name="line.294"></a>
<span class="sourceLineNo">295</span><a name="line.295"></a>
<span class="sourceLineNo">296</span>                @Override<a name="line.296"></a>
<span class="sourceLineNo">297</span>                public void startRDF() throws RDFHandlerException {<a name="line.297"></a>
<span class="sourceLineNo">298</span>                        ; // no-op                      <a name="line.298"></a>
<span class="sourceLineNo">299</span>                }<a name="line.299"></a>
<span class="sourceLineNo">300</span>        }<a name="line.300"></a>
<span class="sourceLineNo">301</span>}<a name="line.301"></a>




























































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