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 *
32 * Concrete implementation of {@link org.apache.any23.extractor.Extractor.ContentExtractor} able to perform the
33 * extraction on <a href="http://www.w3.org/TeamSubmission/turtle/">Turtle</a> documents.
34 *
35 */
36 public class TurtleExtractor extends BaseRDFExtractor {
37
38 public static final ExtractorFactory<TurtleExtractor> factory =
39 SimpleExtractorFactory.create(
40 "rdf-turtle",
41 null,
42 Arrays.asList(
43 "text/rdf+n3",
44 "text/n3",
45 "application/n3",
46 "application/x-turtle",
47 "application/turtle",
48 "text/turtle"
49 ),
50 "example-turtle.ttl",
51 TurtleExtractor.class
52 );
53
54 /**
55 * Constructor, allows to specify the validation and error handling policies.
56 *
57 * @param verifyDataType if <code>true</code> the data types will be verified,
58 * if <code>false</code> will be ignored.
59 * @param stopAtFirstError if <code>true</code> the parser will stop at first parsing error,
60 * if <code>false</code> will ignore non blocking errors.
61 */
62 public TurtleExtractor(boolean verifyDataType, boolean stopAtFirstError) {
63 super(verifyDataType, stopAtFirstError);
64 }
65
66 /**
67 * Default constructor, with no verification of data types and no stop at first error.
68 */
69 public TurtleExtractor() {
70 this(false, false);
71 }
72
73 public ExtractorDescription getDescription() {
74 return factory;
75 }
76
77 @Override
78 protected RDFParser getParser(ExtractionContext extractionContext, ExtractionResult extractionResult) {
79 return RDFParserFactory.getInstance().getTurtleParserInstance(
80 isVerifyDataType(), isStopAtFirstError(), extractionContext, extractionResult
81 );
82 }
83
84 }