01: /*
02: * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
03: * for visualizing and manipulating spatial features with geometry and attributes.
04: *
05: * Copyright (C) 2003 Vivid Solutions
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * as published by the Free Software Foundation; either version 2
10: * of the License, or (at your option) any later version.
11: *
12: * This program is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: * GNU General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public License
18: * along with this program; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20: *
21: * For more information, contact:
22: *
23: * Vivid Solutions
24: * Suite #1A
25: * 2328 Government Street
26: * Victoria BC V8T 5G5
27: * Canada
28: *
29: * (250)385-6040
30: * www.vividsolutions.com
31: */
32: package com.vividsolutions.jump.coordsys;
33:
34: import java.util.Collection;
35: import java.util.Collections;
36: import java.util.HashMap;
37:
38: import com.vividsolutions.jump.coordsys.impl.PredefinedCoordinateSystems;
39: import com.vividsolutions.jump.util.Blackboard;
40:
41: /**
42: * Implements a registry for {@link CoordinateSystem}s.
43: */
44: public class CoordinateSystemRegistry {
45: private CoordinateSystemRegistry() {
46: add(PredefinedCoordinateSystems.BC_ALBERS_NAD_83);
47: add(PredefinedCoordinateSystems.GEOGRAPHICS_WGS_84);
48: add(CoordinateSystem.UNSPECIFIED);
49: add(PredefinedCoordinateSystems.UTM_07N_WGS_84);
50: add(PredefinedCoordinateSystems.UTM_08N_WGS_84);
51: add(PredefinedCoordinateSystems.UTM_09N_WGS_84);
52: add(PredefinedCoordinateSystems.UTM_10N_WGS_84);
53: add(PredefinedCoordinateSystems.UTM_11N_WGS_84);
54: }
55:
56: public void add(CoordinateSystem coordinateSystem) {
57: nameToCoordinateSystemMap.put(coordinateSystem.getName(),
58: coordinateSystem);
59: }
60:
61: public Collection getCoordinateSystems() {
62: return Collections
63: .unmodifiableCollection(nameToCoordinateSystemMap
64: .values());
65: }
66:
67: public CoordinateSystem get(String name) {
68: return (CoordinateSystem) nameToCoordinateSystemMap.get(name);
69: }
70:
71: private HashMap nameToCoordinateSystemMap = new HashMap();
72:
73: public static CoordinateSystemRegistry instance(
74: Blackboard blackboard) {
75: String COORDINATE_SYSTEMS_KEY = CoordinateSystemRegistry.class
76: .getName()
77: + " - COORDINATE SYSTEMS";
78:
79: if (blackboard.get(COORDINATE_SYSTEMS_KEY) == null) {
80: blackboard.put(COORDINATE_SYSTEMS_KEY,
81: new CoordinateSystemRegistry());
82: }
83:
84: return (CoordinateSystemRegistry) blackboard
85: .get(COORDINATE_SYSTEMS_KEY);
86: }
87: }
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