Package arq.examples.riot

Source Code of arq.examples.riot.ExRIOT_2

/*
* 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.examples.riot;

import java.io.FileInputStream ;
import java.io.FileNotFoundException ;
import java.io.InputStream ;

import org.openjena.atlas.lib.Sink ;
import org.openjena.atlas.lib.SinkNull ;
import org.openjena.riot.ErrorHandler ;
import org.openjena.riot.ErrorHandlerFactory ;
import org.openjena.riot.Lang ;
import org.openjena.riot.RiotReader ;
import org.openjena.riot.SysRIOT ;
import org.openjena.riot.lang.LangRIOT ;
import org.openjena.riot.system.ParserProfile ;
import org.openjena.riot.system.RiotLib ;

import com.hp.hpl.jena.sparql.core.Quad ;

/** Example of using RIOT directly.
*/
public class ExRIOT_2
{
    public static void main(String...argv) throws FileNotFoundException
    {
        // Ensure RIOT loaded.
        SysRIOT.wireIntoJena() ;

        Sink<Quad> noWhere = new SinkNull<Quad>() ;

        // ---- Parse to a Sink.
        // RIOT controls the conversion from bytes to java chars.
        InputStream in = new FileInputStream("data.trig") ;
       
        RiotReader.parseQuads(in, Lang.TRIG, "http://example/base", noWhere) ;
       
       
        // --- Or create a parser and do the parsing as separate steps.
        String baseURI = "http://example/base" ;
           
        in = new FileInputStream("data.trig") ;
        LangRIOT parser = RiotReader.createParserQuads(in, Lang.TRIG, "http://example/base", noWhere) ;
       
        // Parser to first error or warning.
        ErrorHandler errHandler = ErrorHandlerFactory.errorHandlerStrict ;

        // Now enable stricter checking, even N-TRIPLES must have absolute URIs.
        ParserProfile profile = RiotLib.profile(baseURI, true, true, errHandler) ;

        // Just set the error handler.
        parser.getProfile().setHandler(errHandler) ;
       
        // Or replave the whole parser profile.
        parser.setProfile(profile) ;

        // Do the work.
        parser.parse() ;
    }
}
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