1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.any23.extractor.rdf;
19
20 import org.apache.any23.extractor.ExtractionContext;
21 import org.apache.any23.extractor.ExtractionResult;
22 import org.apache.any23.extractor.ExtractorDescription;
23 import org.apache.any23.extractor.ExtractorFactory;
24 import org.apache.any23.extractor.SimpleExtractorFactory;
25 import org.openrdf.rio.RDFParser;
26 import org.openrdf.rio.helpers.RDFParserBase;
27
28 import java.util.Arrays;
29
30 /**
31 * Concrete implementation of {@link org.apache.any23.extractor.Extractor.ContentExtractor}
32 * handling <a href="http://sw.deri.org/2008/07/n-quads/">N-Quads</a> format.
33 *
34 * @author Michele Mostarda (mostarda@fbk.eu)
35 */
36 public class NQuadsExtractor extends BaseRDFExtractor {
37
38 public final static ExtractorFactory<NQuadsExtractor> factory =
39 SimpleExtractorFactory.create(
40 "rdf-nq",
41 null,
42 Arrays.asList(
43 "text/x-nquads;q=0.1",
44 "text/rdf+nq;q=0.1",
45 "text/nq;q=0.1",
46 "text/nquads;q=0.1",
47 "text/n-quads;q=0.1"
48 ),
49 "example-nquads.nq",
50 NQuadsExtractor.class
51 );
52
53 public NQuadsExtractor(boolean verifyDataType, boolean stopAtFirstError) {
54 super(verifyDataType, stopAtFirstError);
55 }
56
57 public NQuadsExtractor() {
58 this(false, false);
59 }
60
61 public ExtractorDescription getDescription() {
62 return factory;
63 }
64
65 @Override
66 protected RDFParser getParser(ExtractionContext extractionContext, ExtractionResult extractionResult) {
67 return RDFParserFactory.getInstance().getNQuadsParser(
68 isVerifyDataType(), isStopAtFirstError(), extractionContext, extractionResult
69 );
70 }
71
72 }