/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package arq;
import java.util.List ;
import arq.cmdline.CmdUpdate ;
import jena.cmd.ArgDecl;
import jena.cmd.CmdException;
import org.apache.jena.atlas.lib.Lib ;
import org.apache.jena.query.ReadWrite ;
import org.apache.jena.riot.Lang ;
import org.apache.jena.riot.RDFDataMgr ;
import org.apache.jena.sparql.SystemARQ ;
import org.apache.jena.sparql.core.DatasetGraph ;
import org.apache.jena.sparql.core.DatasetGraphFactory ;
import org.apache.jena.sparql.core.Transactional ;
import org.apache.jena.sparql.core.TransactionalNull ;
import org.apache.jena.update.UpdateExecutionFactory ;
import org.apache.jena.update.UpdateFactory ;
import org.apache.jena.update.UpdateRequest ;
public class update extends CmdUpdate
{
static final ArgDecl updateArg = new ArgDecl(ArgDecl.HasValue, "update", "file") ;
static final ArgDecl dumpArg = new ArgDecl(ArgDecl.NoValue, "dump") ; // Write the result to stdout.
List<String> requestFiles = null ;
boolean dump = false ;
public static void main (String... argv)
{ new update(argv).mainRun() ; }
protected update(String[] argv) {
super(argv) ;
super.add(updateArg, "--update=FILE", "Update commands to execute") ;
super.add(dumpArg, "--dump", "Dump the resulting graph store") ;
}
@Override
protected void processModulesAndArgs() {
requestFiles = getValues(updateArg) ; // ????
dump = contains(dumpArg) ;
super.processModulesAndArgs() ;
}
@Override
protected String getCommandName() { return Lib.className(this) ; }
@Override
protected String getSummary() { return getCommandName()+" --desc=assembler [--dump] --update=<request file>" ; }
// Subclass for specialised commands making common updates more convenient
@Override
protected void execUpdate(DatasetGraph graphStore) {
if ( requestFiles.size() == 0 && getPositional().size() == 0 )
throw new CmdException("Nothing to do") ;
Transactional transactional = (graphStore.supportsTransactionAbort()) ? graphStore : new TransactionalNull() ;
for ( String filename : requestFiles ) {
try {
transactional.begin(ReadWrite.WRITE) ;
execOneFile(filename, graphStore) ;
transactional.commit() ;
}
catch (Throwable ex) {
try { transactional.abort() ; } catch (Exception ex2) {}
throw ex ;
}
finally { transactional.end() ; }
}
for ( String requestString : super.getPositional() ) {
requestString = indirect(requestString) ;
try {
transactional.begin(ReadWrite.WRITE) ;
execOne(requestString, graphStore) ;
transactional.commit() ;
}
catch (Throwable ex) {
try { transactional.abort() ; } catch (Exception ex2) {}
throw ex ;
}
finally { transactional.end() ; }
}
if ( ! ( transactional instanceof DatasetGraph ) )
SystemARQ.sync(graphStore) ;
if ( dump )
RDFDataMgr.write(System.out, graphStore, Lang.NQUADS) ;
}
private void execOneFile(String filename, DatasetGraph store) {
UpdateRequest req = UpdateFactory.read(filename, updateSyntax) ;
UpdateExecutionFactory.create(req, store).execute() ;
}
private void execOne(String requestString, DatasetGraph store) {
UpdateRequest req = UpdateFactory.create(requestString, updateSyntax) ;
UpdateExecutionFactory.create(req, store).execute() ;
}
@Override
protected DatasetGraph dealWithNoDataset() {
return DatasetGraphFactory.create() ;
}
}