apache jena read RDF XML from a file and write it to standard out - Java Big Data

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Description

apache jena read RDF XML from a file and write it to standard out

Demo Code

/*/*ww  w . j a v a 2  s. co m*/
 * 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.
 */

import org.apache.jena.rdf.model.*;
import org.apache.jena.util.FileManager;

import java.io.*;

/** Tutorial 5 - read RDF XML from a file and write it to standard out
 */
public class Tutorial05 extends Object {

    /**
        NOTE that the file is loaded from the class-path and so requires that
        the data-directory, as well as the directory containing the compiled
        class, must be added to the class-path when running this and
        subsequent examples.
     */
    static final String inputFileName = "vc-db-1.rdf";

    public static void main(String args[]) {
        // create an empty model
        Model model = ModelFactory.createDefaultModel();

        InputStream in = FileManager.get().open(inputFileName);
        if (in == null) {
            throw new IllegalArgumentException("File: " + inputFileName
                    + " not found");
        }

        // read the RDF/XML file
        model.read(in, "");

        model.setNsPrefix("cat", "http://www.w3.org/2001/vcard-rdf/3.0#");

        // write it to standard out
        model.write(System.out, "RDF/XML-ABBREV");
    }
}

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