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Posted to commits@jena.apache.org by bu...@apache.org on 2014/08/03 02:50:12 UTC
svn commit: r918242 - in /websites/staging/jena/trunk/content: ./
documentation/csv/get_started.html
Author: buildbot
Date: Sun Aug 3 00:50:12 2014
New Revision: 918242
Log:
Staging update by buildbot for jena
Added:
websites/staging/jena/trunk/content/documentation/csv/get_started.html
Modified:
websites/staging/jena/trunk/content/ (props changed)
Propchange: websites/staging/jena/trunk/content/
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--- cms:source-revision (original)
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Added: websites/staging/jena/trunk/content/documentation/csv/get_started.html
==============================================================================
--- websites/staging/jena/trunk/content/documentation/csv/get_started.html (added)
+++ websites/staging/jena/trunk/content/documentation/csv/get_started.html Sun Aug 3 00:50:12 2014
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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+ <h1 class="title">CSV PropertyTable - Get Started
</h1>
+ <h2 id="using-csv-propertytable-from-java-through-the-api">Using CSV PropertyTable from Java through the API</h2>
+<p>For the users, <a href="https://svn.apache.org/repos/asf/jena/Experimental/jena-csv/src/main/java/org/apache/jena/propertytable/impl/GraphCSV.java">GraphCSV</a> is the only class required to run CSV PropertyTable.
+GraphCSV wrappers a CSV file as a Graph, which makes a Model for SPARQL query:</p>
+<div class="codehilite"><pre><span class="n">Model</span> <span class="n">model</span> <span class="p">=</span> <span class="n">ModelFactory</span><span class="p">.</span><span class="n">createModelForGraph</span><span class="p">(</span><span class="n">new</span> <span class="n">GraphCSV</span><span class="p">(</span>"<span class="n">data</span><span class="p">.</span><span class="n">csv</span>"<span class="p">))</span> <span class="p">;</span>
+<span class="n">QueryExecution</span> <span class="n">qExec</span> <span class="p">=</span> <span class="n">QueryExecutionFactory</span><span class="p">.</span><span class="n">create</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">model</span><span class="p">)</span> <span class="p">;</span>
+</pre></div>
+
+
+<p>or for multiple CSV files and/or other RDF data:</p>
+<div class="codehilite"><pre><span class="n">Model</span> <span class="n">csv1</span> <span class="p">=</span> <span class="n">ModelFactory</span><span class="p">.</span><span class="n">createModelForGraph</span><span class="p">(</span><span class="n">new</span> <span class="n">GraphCSV</span><span class="p">(</span>"<span class="n">data1</span><span class="p">.</span><span class="n">csv</span>"<span class="p">))</span> <span class="p">;</span>
+<span class="n">Model</span> <span class="n">csv2</span> <span class="p">=</span> <span class="n">ModelFactory</span><span class="p">.</span><span class="n">createModelForGraph</span><span class="p">(</span><span class="n">new</span> <span class="n">GraphCSV</span><span class="p">(</span>"<span class="n">data2</span><span class="p">.</span><span class="n">csv</span>"<span class="p">))</span> <span class="p">;</span>
+<span class="n">Model</span> <span class="n">other</span> <span class="p">=</span> <span class="n">ModelFactory</span><span class="p">.</span><span class="n">createModelForGraph</span><span class="p">(</span><span class="n">otherGraph</span><span class="p">)</span> <span class="p">;</span>
+<span class="n">Dataset</span> <span class="n">dataset</span> <span class="p">=</span> <span class="p">...</span> <span class="p">;</span>
+<span class="n">dataset</span><span class="p">.</span><span class="n">addNamedModel</span><span class="p">(</span>"<span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="n">example</span><span class="o">/</span><span class="n">table1</span>"<span class="p">,</span> <span class="n">csv1</span><span class="p">)</span> <span class="p">;</span>
+<span class="n">dataset</span><span class="p">.</span><span class="n">addNamedModel</span><span class="p">(</span>"<span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="n">example</span><span class="o">/</span><span class="n">table2</span>"<span class="p">,</span> <span class="n">csv2</span><span class="p">)</span> <span class="p">;</span>
+<span class="n">dataset</span><span class="p">.</span><span class="n">addNamedModel</span><span class="p">(</span>"<span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="n">example</span><span class="o">/</span><span class="n">other</span>"<span class="p">,</span> <span class="n">other</span><span class="p">)</span> <span class="p">;</span>
+<span class="p">...</span> <span class="n">normal</span> <span class="n">SPARQL</span> <span class="n">execution</span> <span class="p">...</span>
+</pre></div>
+
+
+<p>You can also find the full examples from <a href="https://svn.apache.org/repos/asf/jena/Experimental/jena-csv/src/test/java/org/apache/jena/propertytable/impl/GraphCSVTest.java">GraphCSVTest</a>.</p>
+<p>In short, for Jena ARP, a CSV table is actually a Graph (i.e. GraphCSV), without any differences from other types of Graphs when using it from the Jena ARQ API.</p>
+<h2 id="command-line-tool">Command Line Tool</h2>
+<p><code>[csv2rdf](https://svn.apache.org/repos/asf/jena/Experimental/jena-csv/src/main/java/riotcmd/csv2rdf.java)</code> is a tool for direct transforming from CSV to the formatted RDF syntax of N-Triples.
+The script calls the <code>csv2rdf</code> java program in the <code>riotcmd</code> package in this way:</p>
+<div class="codehilite"><pre><span class="n">java</span> <span class="o">-</span><span class="n">cp</span> <span class="p">...</span> <span class="n">riotcmd</span><span class="p">.</span><span class="n">csv2rdf</span> <span class="o">-</span><span class="n">dest</span><span class="p">=</span><span class="n">outputFile</span> <span class="n">inputFile</span> <span class="p">...</span>
+</pre></div>
+
+
+<p>It transforms the <code>inputFile</code>(i.e. CSV file(s)) into <code>outputFile</code>(i.e. N-Triples file). For example,</p>
+<div class="codehilite"><pre><span class="n">java</span> <span class="o">-</span><span class="n">cp</span> <span class="p">...</span> <span class="n">riotcmd</span><span class="p">.</span><span class="n">csv2rdf</span> <span class="o">--</span><span class="n">dest</span><span class="p">=</span><span class="n">test</span><span class="p">.</span><span class="n">ntriples</span> <span class="n">src</span><span class="o">/</span><span class="n">test</span><span class="o">/</span><span class="n">resources</span><span class="o">/</span><span class="n">test</span><span class="p">.</span><span class="n">csv</span>
+</pre></div>
+
+
+<p>The script reuses <a href="https://svn.apache.org/repos/asf/jena/trunk/jena-arq/src/main/java/riotcmd/CmdLangParse.java">Common framework for running RIOT parsers</a>, so that it also accepts the same arguments (type <code>"riot. --help"</code> to get command line reminders) from <a href="https://jena.apache.org/documentation/io/#command-line-tools">RIOT Command line tools</a>:</p>
+<ul>
+<li><code>--validate</code>: Checking mode: same as <code>--strict --sink --check=true</code></li>
+<li><code>--check=true/false</code>: Run with checking of literals and IRIs either on or off.</li>
+<li><code>--sink</code>: No output of triples or quads in the standard output (i.e. <code>System.out</code>).</li>
+<li><code>--time</code>: Output timing information.</li>
+</ul>
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