/*
* (c) Copyright 2010 Epimorphics Ltd.
* All rights reserved.
* [See end of file]
*/
package arq.examples.update;
import org.openjena.atlas.lib.StrUtils ;
import org.openjena.riot.RiotWriter ;
import com.hp.hpl.jena.sparql.sse.SSE ;
import com.hp.hpl.jena.update.GraphStore ;
import com.hp.hpl.jena.update.GraphStoreFactory ;
import com.hp.hpl.jena.update.UpdateAction ;
import com.hp.hpl.jena.update.UpdateFactory ;
import com.hp.hpl.jena.update.UpdateRequest ;
/** Build an update request up out of indvidiual Updates specified as strings.
* See UpdatePorgrammatic for another way to build up a request.
* These two approaches can be mixed.
*/
public class UpdateExecuteOperations
{
public static void main(String []args)
{
// Create an empty GraphStore (has an empty default graph and no named graphs)
GraphStore graphStore = GraphStoreFactory.create() ;
ex1(graphStore) ;
ex2(graphStore) ;
ex3(graphStore) ;
}
public static void ex1(GraphStore graphStore)
{
// Execute one operation.
UpdateAction.parseExecute("LOAD <file:etc/update-data.ttl>", graphStore) ;
}
public static void ex2(GraphStore graphStore)
{
// Execute a series of operations at once.
// See ex3 for a better way to build up a request
// For maximum portability, multiple operations should be separated by a ";".
// The "\n" imporves readability and parser error messages.
String cmd = StrUtils.strjoin(" ;\n",
"DROP ALL",
"CREATE GRAPH <http://example/g2>",
"LOAD <file:etc/update-data.ttl> INTO <http://example/g2>") ;
// check string created
System.out.println(cmd) ;
UpdateAction.parseExecute(cmd, graphStore) ;
}
public static void ex3(GraphStore graphStore)
{
// Build up the request then execute it.
// This is the preferred way for complex sequences of operations.
UpdateRequest request = UpdateFactory.create() ;
request.add("DROP ALL")
.add("CREATE GRAPH <http://example/g2>") ;
// Different style.
// Equivalent to request.add("...")
UpdateFactory.parse(request, "LOAD <file:etc/update-data.ttl> INTO <http://example/g2>") ;
// And perform the operations.
UpdateAction.execute(request, graphStore) ;
System.out.println("# Debug format");
SSE.write(graphStore) ;
System.out.println();
System.out.println("# N-Quads: S P O G") ;
RiotWriter.writeNQuads(System.out, graphStore) ;
}
}
/*
* (c) Copyright 2010 Epimorphics Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/