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comparison artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoadDataValueFilter.java @ 8037:1de6256c9786

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Added filters for loaded sediment data values. Year, Epochs (time ranges), And and Or.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 16 Jul 2014 11:55:46 +0200
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children 72760ca2fc2b
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8036:17542d100e75 8037:1de6256c9786
1 /* Copyright (C) 2014 by Bundesanstalt für Gewässerkunde
2 * Software engineering by Intevation GmbH
3 *
4 * This file is Free Software under the GNU AGPL (>=v3)
5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
6 * documentation coming with Dive4Elements River for details.
7 */
8 package org.dive4elements.river.artifacts.model.minfo;
9
10 import java.util.ArrayList;
11 import java.util.Calendar;
12 import java.util.Date;
13 import java.util.List;
14
15 import org.dive4elements.river.artifacts.model.minfo.SedimentLoadData.Value;
16 import org.dive4elements.river.artifacts.model.minfo.SedimentLoadData.Value.Filter;
17
18 public final class SedimentLoadDataValueFilter {
19
20 private SedimentLoadDataValueFilter() {
21 }
22
23 public static abstract class Composite implements Filter {
24 protected List<Filter> filters;
25
26 public Composite() {
27 filters = new ArrayList<Filter>();
28 }
29
30 public void add(Filter filter) {
31 filters.add(filter);
32 }
33 }
34
35 public static final class And extends Composite {
36
37 public And() {
38 }
39
40 @Override
41 public boolean accept(Value value) {
42 for (Filter filter: filters) {
43 if (!filter.accept(value)) {
44 return false;
45 }
46 }
47 return true;
48 }
49 } // class And
50
51 public static final class Or extends Composite {
52
53 public Or() {
54 }
55
56 @Override
57 public boolean accept(Value value) {
58 for (Filter filter: filters) {
59 if (filter.accept(value)) {
60 return true;
61 }
62 }
63 return false;
64 }
65 } // class Or
66
67 public static final class Year implements Filter {
68
69 private int year;
70
71 public Year(int year) {
72 this.year = year;
73 }
74
75 @Override
76 public boolean accept(Value value) {
77 Calendar cal = Calendar.getInstance();
78 cal.setTime(value.getLoad().getStartTime());
79 return cal.get(Calendar.YEAR) == year;
80 }
81 } // class Year
82
83 public static final class IsEpoch implements Filter {
84
85 public static final IsEpoch INSTANCE = new IsEpoch();
86
87 private IsEpoch() {
88 }
89
90 @Override
91 public boolean accept(Value value) {
92 return value.getLoad().isEpoch();
93 }
94 } // class Year
95
96 public static final class TimeRangeIntersects implements Filter {
97
98 private Date a;
99 private Date b;
100
101 public TimeRangeIntersects(Date a, Date b) {
102 if (a.after(b)) {
103 this.b = a;
104 this.a = b;
105 } else {
106 this.a = a;
107 this.b = b;
108 }
109 }
110 @Override
111 public boolean accept(Value value) {
112 Date c = value.getLoad().getStartTime();
113 Date d = value.getLoad().getStopTime();
114 return d == null
115 ? c.compareTo(a) >= 0 && c.compareTo(b) <= 0
116 : !(a.after(d) || c.after(b));
117 }
118 } // class TimeRangeIntersects
119 }
120 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
121
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