svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.api / src / main / java / org / gvsig / fmap / mapcontext / MapContextLocator.java @ 47662
History | View | Annotate | Download (7.08 KB)
1 |
/**
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 3
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 |
* MA 02110-1301, USA.
|
20 |
*
|
21 |
* For any additional information, do not hesitate to contact us
|
22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
23 |
*/
|
24 |
/*
|
25 |
* AUTHORS (In addition to CIT):
|
26 |
* 2009 {DiSiD Technologies} {{Task}}
|
27 |
*/
|
28 |
package org.gvsig.fmap.mapcontext; |
29 |
|
30 |
import java.util.ArrayList; |
31 |
import java.util.Iterator; |
32 |
import java.util.List; |
33 |
|
34 |
import org.gvsig.fmap.mapcontext.layers.order.LayerOrderManager; |
35 |
import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolManager; |
36 |
import org.gvsig.tools.ToolsLocator; |
37 |
import org.gvsig.tools.extensionpoint.ExtensionPoint; |
38 |
import org.gvsig.tools.extensionpoint.ExtensionPoint.Extension; |
39 |
import org.gvsig.tools.extensionpoint.ExtensionPointManager; |
40 |
import org.gvsig.tools.locator.BaseLocator; |
41 |
import org.gvsig.tools.locator.Locator; |
42 |
import org.gvsig.tools.locator.LocatorException; |
43 |
import org.slf4j.Logger; |
44 |
import org.slf4j.LoggerFactory; |
45 |
|
46 |
/**
|
47 |
* Locator for the MapContext library.
|
48 |
*
|
49 |
* @author <a href="mailto:cordinyana@gvsig.org">C?sar Ordi?ana</a>
|
50 |
*/
|
51 |
public class MapContextLocator extends BaseLocator { |
52 |
|
53 |
private static Logger logger = LoggerFactory.getLogger(MapContextLocator.class); |
54 |
|
55 |
public static final String MAPCONTEXT_MANAGER_NAME = "mapcontextlocator.manager"; |
56 |
private static final String MAPCONTEXT_MANAGER_DESCRIPTION = "MapContext Library manager"; |
57 |
|
58 |
public static final String SYMBOL_MANAGER_NAME = "symbol.manager"; |
59 |
private static final String SYMBOL_MANAGER_DESCRIPTION = "Symbols manager"; |
60 |
|
61 |
public static final String DEFAULT_LAYER_ORDER_MANAGER_NAME = "default.layer.order.manager"; |
62 |
private static final String DEFAULT_LAYER_ORDER_MANAGER_DESCRIPTION = "Default layer order manager"; |
63 |
public static final String LAYER_ORDER_MANAGER_NAME = |
64 |
"layer.order.manager.name";
|
65 |
public static final String LAYER_ORDER_MANAGER_EXT_POINT = |
66 |
"layer.order.manager.extension.point";
|
67 |
|
68 |
private static final MapContextLocator instance = new MapContextLocator(); |
69 |
|
70 |
/**
|
71 |
* Private constructor, we don't want it to be able to be instantiated
|
72 |
* outside this class.
|
73 |
*/
|
74 |
private MapContextLocator() {
|
75 |
// Nothing to do
|
76 |
} |
77 |
|
78 |
public static MapContextLocator getInstance() { |
79 |
return instance;
|
80 |
} |
81 |
|
82 |
/**
|
83 |
* Return a reference to MapContextManager.
|
84 |
*
|
85 |
* @return a reference to MapContextManager
|
86 |
* @throws LocatorException
|
87 |
* if there is no access to the class or the class cannot be
|
88 |
* instantiated
|
89 |
* @see Locator#get(String)
|
90 |
*/
|
91 |
public static MapContextManager getMapContextManager() |
92 |
throws LocatorException {
|
93 |
return (MapContextManager) getInstance().get(MAPCONTEXT_MANAGER_NAME);
|
94 |
} |
95 |
|
96 |
/**
|
97 |
* Registers the Class implementing the MapContextManager interface.
|
98 |
*
|
99 |
* @param clazz
|
100 |
* implementing the MapContextManager interface
|
101 |
*/
|
102 |
public static void registerMapContextManager(Class clazz) { |
103 |
getInstance().register(MAPCONTEXT_MANAGER_NAME, |
104 |
MAPCONTEXT_MANAGER_DESCRIPTION, clazz); |
105 |
} |
106 |
|
107 |
/**
|
108 |
* Return a reference to the {@link SymbolManager}.
|
109 |
*
|
110 |
* @return a reference to the SymbolManager.
|
111 |
* @throws LocatorException
|
112 |
* if there is no access to the class or the class cannot be
|
113 |
* instantiated
|
114 |
* @see Locator#get(String)
|
115 |
*/
|
116 |
public static SymbolManager getSymbolManager() throws LocatorException { |
117 |
return (SymbolManager) getInstance().get(SYMBOL_MANAGER_NAME);
|
118 |
} |
119 |
|
120 |
/**
|
121 |
* Registers the Class implementing the SymbolManager interface.
|
122 |
*
|
123 |
* @param clazz
|
124 |
* implementing the SymbolManager interface
|
125 |
*/
|
126 |
public static void registerSymbolManager(Class clazz) { |
127 |
getInstance().register(SYMBOL_MANAGER_NAME, SYMBOL_MANAGER_DESCRIPTION, |
128 |
clazz); |
129 |
} |
130 |
|
131 |
/* *************************************
|
132 |
* Layer order management
|
133 |
* *************************************
|
134 |
*/
|
135 |
|
136 |
/**
|
137 |
* Register the class as the default order manager.
|
138 |
* This will only work if there is not a default order manager already.
|
139 |
* Also registers the class in the list of available order managers.
|
140 |
*
|
141 |
* @param lom_class
|
142 |
* @throws LocatorException
|
143 |
*/
|
144 |
public static void registerDefaultOrderManager(Class lom_class) |
145 |
throws LocatorException {
|
146 |
|
147 |
if (LayerOrderManager.class.isAssignableFrom(lom_class)) {
|
148 |
getInstance().registerDefault( |
149 |
DEFAULT_LAYER_ORDER_MANAGER_NAME, |
150 |
DEFAULT_LAYER_ORDER_MANAGER_DESCRIPTION, |
151 |
lom_class); |
152 |
|
153 |
// Also register as available order manager
|
154 |
registerOrderManager(lom_class); |
155 |
|
156 |
} else {
|
157 |
// not valid class passed:
|
158 |
throw new LocatorException( |
159 |
"Class '" +
|
160 |
(lom_class == null ? "NULL" : lom_class.getClass().getName()) + |
161 |
"' does not implement LayerOrderManager.",
|
162 |
"", -1); |
163 |
} |
164 |
} |
165 |
|
166 |
/**
|
167 |
* Adds the class to the list of available order managers
|
168 |
*
|
169 |
* @param lom_class
|
170 |
*/
|
171 |
public static void registerOrderManager(Class lom_class) { |
172 |
|
173 |
if (LayerOrderManager.class.isAssignableFrom(lom_class)) {
|
174 |
|
175 |
ExtensionPointManager epMan = ToolsLocator.getExtensionPointManager(); |
176 |
ExtensionPoint ep = epMan.add(LAYER_ORDER_MANAGER_EXT_POINT, "");
|
177 |
ep.append(LAYER_ORDER_MANAGER_NAME + "." + lom_class.getName(),
|
178 |
"", lom_class);
|
179 |
} else {
|
180 |
// not valid class passed:
|
181 |
throw new LocatorException( |
182 |
"Class '"
|
183 |
+ (lom_class == null ? "NULL" : lom_class.getClass().getName()) |
184 |
+ "' does not implement LayerOrderManager.",
|
185 |
"", -1); |
186 |
} |
187 |
} |
188 |
|
189 |
/**
|
190 |
* Returns the default order manager or null if none was
|
191 |
* registered as default.
|
192 |
*
|
193 |
* @return
|
194 |
* @throws LocatorException
|
195 |
*/
|
196 |
public static LayerOrderManager getDefaultOrderManager() |
197 |
throws LocatorException {
|
198 |
|
199 |
LayerOrderManager resp = null;
|
200 |
try {
|
201 |
resp = (LayerOrderManager) getInstance().get( |
202 |
DEFAULT_LAYER_ORDER_MANAGER_NAME); |
203 |
} catch (Exception ex) { |
204 |
logger.info("Cant get default layer order manager", ex);
|
205 |
} |
206 |
return resp;
|
207 |
} |
208 |
|
209 |
|
210 |
/**
|
211 |
* Gets list of available order managers.
|
212 |
*
|
213 |
* @return
|
214 |
*/
|
215 |
public static List getOrderManagers() { |
216 |
|
217 |
ExtensionPointManager epMan = ToolsLocator.getExtensionPointManager(); |
218 |
ExtensionPoint ep = epMan.get(LAYER_ORDER_MANAGER_EXT_POINT); |
219 |
|
220 |
List managers = new ArrayList(); |
221 |
Iterator iter = ep.iterator();
|
222 |
|
223 |
|
224 |
while (iter.hasNext()) {
|
225 |
Extension extension = (Extension) iter.next(); |
226 |
LayerOrderManager lom = null;
|
227 |
try {
|
228 |
lom = (LayerOrderManager) extension.create(); |
229 |
} catch (Exception e) { |
230 |
logger.warn("Cant create LayerOrderManager " + extension.getName(), e);
|
231 |
continue;
|
232 |
} |
233 |
managers.add(lom); |
234 |
} |
235 |
return managers;
|
236 |
} |
237 |
|
238 |
} |