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1 package org.objectweb.celtix.configuration.impl;
2
3
4
5 import java.lang.reflect.InvocationTargetException  ;
6 import java.lang.reflect.Method ;
7 import java.util.List ;
8 import java.util.ResourceBundle ;
9 import java.util.Vector ;
10 import java.util.logging.Level ;
11 import java.util.logging.Logger ;
12
13 import javax.xml.namespace.QName ;
14
15 import org.objectweb.celtix.common.i18n.BundleUtils;
16 import org.objectweb.celtix.common.i18n.Message;
17 import org.objectweb.celtix.common.logging.LogUtils;
18 import org.objectweb.celtix.configuration.Configuration;
19 import org.objectweb.celtix.configuration.ConfigurationException;
20 import org.objectweb.celtix.configuration.ConfigurationItemMetadata;
21 import org.objectweb.celtix.configuration.ConfigurationMetadata;
22 import org.objectweb.celtix.configuration.ConfigurationProvider;
23 import org.objectweb.celtix.configuration.Configurator;
24
25 public class AbstractConfigurationImpl implements Configuration {
26
27 private static final Logger LOG = LogUtils.getL7dLogger(AbstractConfigurationImpl.class);
28 private static final ResourceBundle BUNDLE = BundleUtils.getBundle(AbstractConfigurationImpl.class);
29 private Configurator configurator;
30 private ConfigurationMetadata model;
31 private String id;
32 private List <ConfigurationProvider> providers;
33
34 public AbstractConfigurationImpl(ConfigurationMetadata m, String instanceId, Configuration parent) {
35 model = m;
36 id = instanceId;
37 configurator = new ConfiguratorImpl(this, parent instanceof AbstractConfigurationImpl
38 ? (AbstractConfigurationImpl)parent
39 : null);
40
41 providers = new Vector <ConfigurationProvider>();
42
43
46 DefaultConfigurationProviderFactory factory = DefaultConfigurationProviderFactory.getInstance();
47 ConfigurationProvider defaultProvider = factory.createDefaultProvider(this);
48
49 if (null != defaultProvider) {
50 providers.add(defaultProvider);
51 }
52 }
53
54 public Object getId() {
55 return id;
56 }
57
58 public Configuration getParent() {
59 if (null != configurator.getHook()) {
60 return configurator.getHook().getConfiguration();
61 }
62 return null;
63 }
64
65 public Configuration getChild(String namespaceURI, Object childId) {
66 for (Configurator c : configurator.getClients()) {
67 if (namespaceURI.equals(c.getConfiguration().getModel().getNamespaceURI())
68 && childId.equals(c.getConfiguration().getId())) {
69 return c.getConfiguration();
70 }
71 }
72 if (LOG.isLoggable(Level.FINE)) {
73 LOG.fine("Could not find child configuration with id: " + childId);
74 }
75 return null;
76 }
77
78 public ConfigurationMetadata getModel() {
79 return model;
80 }
81
82 public List <ConfigurationProvider> getProviders() {
83 return providers;
84 }
85
86 public void setProviders(List <ConfigurationProvider> p) {
87 providers = p;
88 }
89
90 public <T> T getObject(Class <T> cls, String name) {
91 Object obj = getObject(name);
92 return cls.cast(obj);
93 }
94
95 public Object getObject(String name) {
96
97 ConfigurationItemMetadata definition = model.getDefinition(name);
98 if (null == definition) {
99 throw new ConfigurationException(new Message("ITEM_NOT_DEFINED_EXC", BUNDLE, name));
100 }
101
102 Configuration holder = this;
103 while (null != holder) {
104 Object obj = getLocal(holder, name);
105 if (null != obj) {
106 return obj;
107 }
108 holder = holder.getParent();
109 }
110 return definition.getDefaultValue();
111 }
112
113
117 public boolean setObject(String name, Object value) {
118 ConfigurationItemMetadata definition = model.getDefinition(name);
119 if (null == definition) {
120 throw new ConfigurationException(new Message("ITEM_NOT_DEFINED_EXC", BUNDLE, name));
121 }
122
123 Object defaultValue = definition.getDefaultValue();
125 if (defaultValue != null && !defaultValue.getClass().isAssignableFrom(value.getClass())) {
126 QName type = model.getDefinition(name).getType();
127 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
128 }
129
130
135 boolean accepted = false;
137
138 for (ConfigurationProvider provider : providers) {
139 if (provider.setObject(name, value)) {
140 accepted = true;
141 break;
142 }
143 }
144
145 if (accepted) {
146 reconfigure(name);
147 }
148 return accepted;
149 }
150
151 public boolean save() {
152 boolean accepted = false;
153
154
156 for (ConfigurationProvider provider : providers) {
157 if (provider.save()) {
158 accepted = true;
159 break;
160 }
161 }
162 return accepted;
163 }
164
165 public boolean getBoolean(String name) {
166 Object obj = getObject(name);
167 if (null == obj) {
168 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
169 }
170 try {
171 return ((Boolean )obj).booleanValue();
172 } catch (ClassCastException ex) {
173 QName type = model.getDefinition(name).getType();
174 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
175 }
176 }
177
178 public boolean setBoolean(String name, boolean value) {
179 return setObject(name, Boolean.valueOf(value));
180 }
181
182 public short getShort(String name) {
183 Object obj = getObject(name);
184 if (null == obj) {
185 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
186 }
187 try {
188 return ((Short )obj).shortValue();
189 } catch (ClassCastException ex) {
190 QName type = model.getDefinition(name).getType();
191 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
192 }
193 }
194
195 public boolean setShort(String name, short value) {
196 return setObject(name, new Short (value));
197 }
198
199 public int getInt(String name) {
200 Object obj = getObject(name);
201 if (null == obj) {
202 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
203 }
204 try {
205 return ((Integer )obj).intValue();
206 } catch (ClassCastException ex) {
207 QName type = model.getDefinition(name).getType();
208 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
209 }
210 }
211
212 public boolean setInt(String name, int value) {
213 return setObject(name, new Integer (value));
214 }
215
216 public float getFloat(String name) {
217 Object obj = getObject(name);
218 if (null == obj) {
219 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
220 }
221 try {
222 return ((Float )obj).floatValue();
223 } catch (ClassCastException ex) {
224 QName type = model.getDefinition(name).getType();
225 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
226 }
227 }
228
229 public boolean setFloat(String name, float value) {
230 return setObject(name, new Float (value));
231 }
232
233 public double getDouble(String name) {
234 Object obj = getObject(name);
235 if (null == obj) {
236 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
237 }
238 try {
239 return ((Double )obj).doubleValue();
240 } catch (ClassCastException ex) {
241 QName type = model.getDefinition(name).getType();
242 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
243 }
244 }
245
246 public boolean setDouble(String name, double value) {
247 return setObject(name, new Double (value));
248 }
249
250 public long getLong(String name) {
251 Object obj = getObject(name);
252 if (null == obj) {
253 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
254 }
255 try {
256 return ((Long )obj).longValue();
257 } catch (ClassCastException ex) {
258 QName type = model.getDefinition(name).getType();
259 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
260 }
261 }
262
263 public boolean setLong(String name, long value) {
264 return setObject(name, new Long (value));
265 }
266
267 public String getString(String name) {
268 Object obj = getObject(name);
269 if (null == obj) {
270 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
271 }
272 if (!(obj instanceof String )) {
273 QName type = model.getDefinition(name).getType();
274 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
275 }
276 return (String )obj;
277 }
278
279 public boolean setString(String name, String value) {
280 return setObject(name, (String )value);
281 }
282
283 @SuppressWarnings ("unchecked")
284 public List <String > getStringList(String name) {
285 Object obj = getObject(name);
286 if (null == obj) {
287 throw new ConfigurationException(new Message("ITEM_NO_VALUE_EXC", BUNDLE, name));
288 }
289 try {
290 Method method = obj.getClass().getMethod("getItem", new Class [0]);
291 obj = method.invoke(obj, new Object [0]);
292
293 return (List <String >)obj;
294 } catch (ClassCastException ex) {
295 QName type = model.getDefinition(name).getType();
296 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
297 } catch (NoSuchMethodException e) {
298 QName type = model.getDefinition(name).getType();
299 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
300 } catch (IllegalAccessException e) {
301 QName type = model.getDefinition(name).getType();
302 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
303 } catch (InvocationTargetException e) {
304 QName type = model.getDefinition(name).getType();
305 throw new ConfigurationException(new Message("ITEM_TYPE_MISMATCH_EXC", BUNDLE, name, type));
306 }
307 }
308
309 protected Object getLocal(Configuration c, String name) {
310 if (null == providers) {
311 return null;
312 }
313 Object obj;
314 for (ConfigurationProvider provider : providers) {
315 obj = provider.getObject(name);
316 if (null != obj) {
317 return obj;
318 }
319 }
320 return null;
321 }
322
323 public final Configurator getConfigurator() {
324 return configurator;
325 }
326
327 public void reconfigure(String name) {
328 }
330 }
331 |
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