Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
PropertiesCSVReader |
|
| 2.0;2 |
1 | /* | |
2 | * Copyright (c) 2010 - 2011 Michael Schierl | |
3 | * | |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * - Redistributions of source code must retain the above copyright notice, | |
11 | * this list of conditions and the following disclaimer. | |
12 | * | |
13 | * - Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * | |
17 | * - Neither name of the copyright holders nor the names of its | |
18 | * contributors may be used to endorse or promote products derived from | |
19 | * this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND THE CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * HOLDERS OR THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
27 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS | |
28 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
29 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
30 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
31 | * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | package net.sf.jmatchparser.util.csv; | |
34 | ||
35 | import java.io.IOException; | |
36 | import java.text.Format; | |
37 | import java.text.MessageFormat; | |
38 | import java.util.Properties; | |
39 | ||
40 | /** | |
41 | * Class to read data from a {@link Properties} file as if it was a CSV (Comma | |
42 | * Separated Value) file. | |
43 | */ | |
44 | public class PropertiesCSVReader extends AbstractCSVReader { | |
45 | ||
46 | private final Properties properties; | |
47 | private final Format[] columnFormats; | |
48 | 2 | private int nextIndex = 0; |
49 | ||
50 | /** | |
51 | * Create a new {@link PropertiesCSVReader} that reads from the given | |
52 | * {@link Properties} file. Each columnFormat is evaluated for each row | |
53 | * number to return the respective property name for this column. | |
54 | * | |
55 | * @param properties | |
56 | * Property file to write to | |
57 | * @param firstIndex | |
58 | * index of the first row | |
59 | * @param columnFormats | |
60 | * column formats | |
61 | */ | |
62 | public PropertiesCSVReader(Properties properties, int firstIndex, String... columnFormats) { | |
63 | 2 | this(properties, firstIndex, buildFormats(columnFormats)); |
64 | 2 | } |
65 | ||
66 | /** | |
67 | * Create a new {@link PropertiesCSVReader} that reads from the given | |
68 | * {@link Properties} file. Each columnFormat is evaluated for each row | |
69 | * number to return the respective property name for this column. | |
70 | * | |
71 | * @param properties | |
72 | * Property file to write to | |
73 | * @param firstIndex | |
74 | * index of the first row | |
75 | * @param columnFormats | |
76 | * column formats | |
77 | */ | |
78 | 2 | public PropertiesCSVReader(Properties properties, int firstIndex, Format... columnFormats) { |
79 | 2 | this.properties = properties; |
80 | 2 | nextIndex = firstIndex; |
81 | 2 | this.columnFormats = columnFormats; |
82 | 2 | } |
83 | ||
84 | static Format[] buildFormats(String... formats) { | |
85 | 3 | Format[] result = new Format[formats.length]; |
86 | 9 | for (int i = 0; i < result.length; i++) { |
87 | 6 | result[i] = new MessageFormat(formats[i]); |
88 | } | |
89 | 3 | return result; |
90 | } | |
91 | ||
92 | /** | |
93 | * Close this reader. This is a no-op. | |
94 | */ | |
95 | @Override | |
96 | public void close() throws IOException { | |
97 | 1 | } |
98 | ||
99 | /** | |
100 | * Read a row from this XML file. | |
101 | */ | |
102 | @Override | |
103 | public String[] read() throws IOException { | |
104 | 6 | String[] record = new String[columnFormats.length]; |
105 | 6 | boolean found = false; |
106 | 18 | for (int i = 0; i < record.length; i++) { |
107 | 12 | record[i] = properties.getProperty(columnFormats[i].format(new Object[] { nextIndex })); |
108 | 12 | if (record[i] == null) |
109 | 4 | record[i] = ""; |
110 | else | |
111 | 8 | found = true; |
112 | } | |
113 | 6 | if (!found) |
114 | 2 | return null; |
115 | 4 | nextIndex++; |
116 | 4 | return record; |
117 | } | |
118 | } |