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.vocab;
19
20 import org.openrdf.model.URI;
21
22 /**
23 * This vocabulary models the structure of a <i>CSV</i> file
24 * according the <a href="http://www.ietf.org/rfc/rfc4180.txt">RFC 4180</a>.
25 *
26 * @author Davide Palmisano (dpalmisano@gmail.com)
27 */
28 public class CSV extends Vocabulary {
29
30 public static final String ROW = "row";
31
32 public static final String ROW_POSITION= "rowPosition";
33
34 public static final String NUMBER_OF_ROWS = "numberOfRows";
35
36 public static final String NUMBER_OF_COLUMNS = "numberOfColumns";
37
38 public static final String COLUMN_POSITION= "columnPosition";
39
40 public static final String ROW_TYPE = "Row";
41
42 /**
43 * This property links the identifier of a <i>CSV</i> to an entity representing
44 * a row.
45 */
46 public final URI row = createProperty(ROW);
47
48 /**
49 * This property expresses the index of a row in a <i>CSV</i> file.
50 */
51 public final URI rowPosition = createProperty(ROW_POSITION);
52
53 /**
54 * This property expresses the number of rows in a <i>CSV</i> file.
55 */
56 public final URI numberOfRows = createProperty(NUMBER_OF_ROWS);
57
58 /**
59 * This property expresses the number of columns in a <i>CSV</i> file.
60 */
61 public final URI numberOfColumns = createProperty(NUMBER_OF_COLUMNS);
62
63 /**
64 * This resource identifies a <i>Row</i>.
65 */
66 public final URI rowType = createResource(ROW_TYPE);
67
68 /**
69 * This property expresses the index of a column in a <i>CSV</i> file.
70 */
71 public URI columnPosition = createProperty(COLUMN_POSITION);
72
73 /**
74 * The namespace of the vocabulary as a string.
75 */
76 public static final String NS = "http://vocab.sindice.net/csv/";
77
78 private static CSV instance;
79
80 public static CSV getInstance() {
81 if (instance == null) {
82 instance = new CSV();
83 }
84 return instance;
85 }
86
87 public URI createResource(String localName) {
88 return createProperty(NS, localName);
89 }
90
91 /**
92 *
93 * @param localName
94 * @return the new URI instance.
95 */
96 public URI createProperty(String localName) {
97 return createProperty(NS, localName);
98 }
99
100 private CSV() {
101 super(NS);
102 }
103
104 }