Mercurial > dive4elements > river
comparison flys-backend/src/main/java/de/intevation/flys/importer/parsers/MorphologicalWidthParser.java @ 2821:0a536eb5d668
Added parser for parsing morphological widths.
flys-backend/trunk@4238 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Fri, 13 Apr 2012 13:22:54 +0000 |
parents | |
children | 0d27d02b1208 |
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2820:7dffd28271d0 | 2821:0a536eb5d668 |
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1 package de.intevation.flys.importer.parsers; | |
2 | |
3 import java.math.BigDecimal; | |
4 | |
5 import java.text.NumberFormat; | |
6 import java.text.ParseException; | |
7 | |
8 import java.util.ArrayList; | |
9 import java.util.List; | |
10 import java.util.regex.Matcher; | |
11 import java.util.regex.Pattern; | |
12 | |
13 import org.apache.log4j.Logger; | |
14 | |
15 import de.intevation.flys.importer.ImportMorphWidth; | |
16 import de.intevation.flys.importer.ImportMorphWidthValue; | |
17 import de.intevation.flys.importer.ImportUnit; | |
18 | |
19 | |
20 public class MorphologicalWidthParser extends LineParser { | |
21 | |
22 private static final Logger log = | |
23 Logger.getLogger(MorphologicalWidthParser.class); | |
24 | |
25 | |
26 public static final NumberFormat nf = NumberFormat.getInstance(DEFAULT_LOCALE); | |
27 | |
28 | |
29 public static final Pattern META_UNIT = | |
30 Pattern.compile("^Einheit: \\[(.*)\\].*"); | |
31 | |
32 | |
33 protected List<ImportMorphWidth> morphWidths; | |
34 | |
35 protected ImportMorphWidth current; | |
36 | |
37 | |
38 public MorphologicalWidthParser() { | |
39 morphWidths = new ArrayList<ImportMorphWidth>(); | |
40 } | |
41 | |
42 | |
43 @Override | |
44 protected void reset() { | |
45 current = new ImportMorphWidth(); | |
46 } | |
47 | |
48 | |
49 @Override | |
50 protected void finish() { | |
51 if (current != null) { | |
52 morphWidths.add(current); | |
53 } | |
54 } | |
55 | |
56 | |
57 @Override | |
58 protected void handleLine(String line) { | |
59 if (line.startsWith(START_META_CHAR)) { | |
60 handleMetaLine(stripMetaLine(line)); | |
61 } | |
62 else { | |
63 handleDataLine(line); | |
64 } | |
65 } | |
66 | |
67 | |
68 protected void handleMetaLine(String line) { | |
69 if (handleMetaUnit(line)) { | |
70 return; | |
71 } | |
72 else { | |
73 log.warn("Unknown meta line: '" + line + "'"); | |
74 } | |
75 } | |
76 | |
77 | |
78 protected boolean handleMetaUnit(String line) { | |
79 Matcher m = META_UNIT.matcher(line); | |
80 | |
81 if (m.matches()) { | |
82 String unit = m.group(1); | |
83 | |
84 current.setUnit(new ImportUnit(unit)); | |
85 | |
86 return true; | |
87 } | |
88 | |
89 return false; | |
90 } | |
91 | |
92 | |
93 protected void handleDataLine(String line) { | |
94 String[] vals = line.split(SEPERATOR_CHAR); | |
95 | |
96 if (vals == null || vals.length < 2) { | |
97 log.warn("skip invalid data line: '" + line + "'"); | |
98 return; | |
99 } | |
100 | |
101 try { | |
102 BigDecimal km = new BigDecimal(nf.parse(vals[0]).doubleValue()); | |
103 BigDecimal width = new BigDecimal(nf.parse(vals[1]).doubleValue()); | |
104 | |
105 String desc = vals.length > 2 ? vals[2] : null; | |
106 | |
107 current.addValue(new ImportMorphWidthValue( | |
108 km, | |
109 width, | |
110 desc | |
111 )); | |
112 } | |
113 catch (ParseException pe) { | |
114 log.warn("Error while parsing numbers in '" + line + "'"); | |
115 } | |
116 } | |
117 | |
118 | |
119 public List<ImportMorphWidth> getMorphologicalWidths() { | |
120 return morphWidths; | |
121 } | |
122 } | |
123 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |