1 package org.codehaus.modello.plugin;
2
3 /*
4 * Copyright (c) 2004, Codehaus.org
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 import java.util.Iterator;
26 import java.util.Map;
27
28 import org.codehaus.modello.ModelloRuntimeException;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
31
32 /**
33 * @author <a href="mailto:trygvis@inamo.no">Trygve Laugstøl</a>
34 */
35 public abstract class AbstractPluginManager<T> {
36 private final Logger logger = LoggerFactory.getLogger(getClass());
37
38 protected Logger getLogger() {
39 return logger;
40 }
41
42 public void initialize() {}
43
44 public abstract Map<String, T> getPlugins();
45
46 public Iterator<T> getPluginsIterator() {
47 return getPlugins().values().iterator();
48 }
49
50 public T getPlugin(String name) {
51 T plugin = getPlugins().get(name);
52
53 if (plugin == null) {
54 throw new ModelloRuntimeException("No such plugin: " + name);
55 }
56
57 return plugin;
58 }
59
60 public boolean hasPlugin(String name) {
61 return getPlugins().containsKey(name);
62 }
63 }