##### Coverage Report - org.apache.any23.extractor.ExampleInputOutput

Classes in this File | Line Coverage | Branch Coverage | Complexity
ExampleInputOutput |
0% | 0/29
0% | 0/12
| 3.3333333333333335;3.333

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;
19 |  |
20 |  |
     import org.apache.any23.source.MemCopyFactory;
21 |  |
     import org.apache.any23.source.StringDocumentSource;
22 |  |
     import org.apache.any23.writer.TripleHandler;
23 |  |
     import org.apache.any23.writer.TripleHandlerException;
24 |  |
     import org.apache.any23.writer.TurtleWriter;
25 |  |
26 |  |
     import java.io.ByteArrayOutputStream;
27 |  |
     import java.io.IOException;
28 |  |
     import java.io.InputStream;
29 |  |
30 |  |
     /**
31 |  |
      * A reporter for example input and output of an extractor. Example
32 |  |
      * input is part of every extractor's metadata; example output is
33 |  |
      * obtained by running the extractor on its own example input. This
34 |  |
      * is useful as a documentation device.
35 |  |
      *
36 |  |
      * @author Richard Cyganiak (richard@cyganiak.de)
37 |  |
      */
38 |  |
     public class ExampleInputOutput {
39 |  |
40 |  |
         private final ExtractorFactory<?> factory;
41 |  |
42 |  |
         public ExampleInputOutput(String extractorName) {
43 | 0 |
             this(ExtractorRegistry.getInstance().getFactory(extractorName));
44 | 0 |
         }
45 |  |
46 | 0 |
         public ExampleInputOutput(ExtractorFactory<?> factory) {
47 | 0 |
             this.factory = factory;
48 | 0 |
         }
49 |  |
50 |  |
         public String getExampleInput() throws IOException {
51 | 0 |
             if (factory.getExampleInput() == null) {
52 | 0 |
                 return null;
53 |  |
             }
54 | 0 |
             if (isBlindExtractor()) {
55 | 0 |
                 return null;
56 |  |
             }
57 | 0 |
             InputStream in = factory.createExtractor().getClass().getResourceAsStream(
58 |  |
                     factory.getExampleInput());
59 | 0 |
             if (in == null) {
60 | 0 |
                 throw new IllegalArgumentException(
61 |  |
                         "Example input resource not found for extractor " +
62 |  |
                                 factory.getExtractorName() + ": " +
63 |  |
                                 factory.getExampleInput());
64 |  |
             }
65 | 0 |
             return new String(MemCopyFactory.toByteArray(in), "utf-8");
66 |  |
         }
67 |  |
68 |  |
         public String getExampleURI() {
69 | 0 |
             if (factory.getExampleInput() == null) {
70 | 0 |
                 return null;
71 |  |
             }
72 | 0 |
             if (isBlindExtractor()) {
73 | 0 |
                 return factory.getExampleInput();    // Should be a URI.
74 |  |
             }
75 | 0 |
             return "http://example.com/";
76 |  |
         }
77 |  |
78 |  |
         public String getExampleOutput() throws IOException, ExtractionException {
79 | 0 |
             if (factory.getExampleInput() == null) {
80 | 0 |
                 return null;
81 |  |
             }
82 | 0 |
             ByteArrayOutputStream out = new ByteArrayOutputStream();
83 | 0 |
             TripleHandler writer = new TurtleWriter(out);
84 | 0 |
             new SingleDocumentExtraction(
85 |  |
                     new StringDocumentSource(getExampleInput(), getExampleURI()),
86 |  |
                     factory,
87 |  |
                     writer).run();
88 |  |
             try {
89 | 0 |
                 writer.close();
90 | 0 |
             } catch (TripleHandlerException e) {
91 | 0 |
                 throw new ExtractionException("Error while closing the triple handler", e);
92 | 0 |
             }
93 | 0 |
             return out.toString("utf-8");
94 |  |
         }
95 |  |
96 |  |
         private boolean isBlindExtractor() {
97 | 0 |
             return factory.createExtractor() instanceof Extractor.BlindExtractor;
98 |  |
         }
99 |  |
100 |  |
     }