Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
Pierre De Rop | e8c339f | 2009-12-04 22:51:51 +0000 | [diff] [blame] | 19 | package org.apache.felix.dm.impl.dependencies; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 20 | |
Marcel Offermans | 26081d3 | 2010-07-12 12:43:42 +0000 | [diff] [blame] | 21 | import java.lang.reflect.InvocationTargetException; |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 22 | import java.net.URL; |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 23 | import java.util.ArrayList; |
Marcel Offermans | 117aa2f | 2009-12-10 09:48:17 +0000 | [diff] [blame] | 24 | import java.util.Dictionary; |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 25 | import java.util.List; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 26 | import java.util.Properties; |
| 27 | |
Marcel Offermans | 8b93efa | 2010-07-02 18:27:21 +0000 | [diff] [blame] | 28 | import org.apache.felix.dm.Dependency; |
Marcel Offermans | 3d92121 | 2010-08-09 13:37:02 +0000 | [diff] [blame^] | 29 | import org.apache.felix.dm.DependencyActivation; |
| 30 | import org.apache.felix.dm.DependencyService; |
Marcel Offermans | 8b93efa | 2010-07-02 18:27:21 +0000 | [diff] [blame] | 31 | import org.apache.felix.dm.ResourceDependency; |
| 32 | import org.apache.felix.dm.ResourceHandler; |
| 33 | import org.apache.felix.dm.Service; |
| 34 | import org.apache.felix.dm.ServiceComponentDependency; |
Marcel Offermans | 26081d3 | 2010-07-12 12:43:42 +0000 | [diff] [blame] | 35 | import org.apache.felix.dm.impl.InvocationUtil; |
Pierre De Rop | e8c339f | 2009-12-04 22:51:51 +0000 | [diff] [blame] | 36 | import org.apache.felix.dm.impl.Logger; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 37 | import org.osgi.framework.BundleContext; |
| 38 | import org.osgi.framework.ServiceRegistration; |
Marcel Offermans | 26081d3 | 2010-07-12 12:43:42 +0000 | [diff] [blame] | 39 | import org.osgi.service.log.LogService; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 40 | |
Marcel Offermans | b1959f4 | 2010-07-01 12:23:51 +0000 | [diff] [blame] | 41 | public class ResourceDependencyImpl extends DependencyBase implements ResourceDependency, ResourceHandler, DependencyActivation, ServiceComponentDependency { |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 42 | private volatile BundleContext m_context; |
| 43 | private volatile ServiceRegistration m_registration; |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 44 | // private long m_resourceCounter; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 45 | |
| 46 | private Object m_callbackInstance; |
| 47 | private String m_callbackAdded; |
| 48 | private String m_callbackChanged; |
| 49 | private String m_callbackRemoved; |
| 50 | private boolean m_autoConfig; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 51 | private String m_autoConfigInstance; |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 52 | protected List m_services = new ArrayList(); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 53 | private String m_resourceFilter; |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 54 | private URL m_trackedResource; |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 55 | private boolean m_isStarted; |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 56 | private List m_resources = new ArrayList(); |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 57 | private URL m_resourceInstance; |
Marcel Offermans | 117aa2f | 2009-12-10 09:48:17 +0000 | [diff] [blame] | 58 | private boolean m_propagate; |
Marcel Offermans | 26081d3 | 2010-07-12 12:43:42 +0000 | [diff] [blame] | 59 | private Object m_propagateCallbackInstance; |
| 60 | private String m_propagateCallbackMethod; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 61 | |
Pierre De Rop | e8c339f | 2009-12-04 22:51:51 +0000 | [diff] [blame] | 62 | public ResourceDependencyImpl(BundleContext context, Logger logger) { |
Marcel Offermans | 61a8114 | 2010-04-02 15:16:50 +0000 | [diff] [blame] | 63 | super(logger); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 64 | m_context = context; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 65 | m_autoConfig = true; |
| 66 | } |
| 67 | |
Marcel Offermans | b1959f4 | 2010-07-01 12:23:51 +0000 | [diff] [blame] | 68 | public ResourceDependencyImpl(ResourceDependencyImpl prototype) { |
| 69 | super(prototype); |
| 70 | m_context = prototype.m_context; |
| 71 | m_autoConfig = prototype.m_autoConfig; |
| 72 | m_callbackInstance = prototype.m_callbackInstance; |
| 73 | m_callbackAdded = prototype.m_callbackAdded; |
| 74 | m_callbackChanged = prototype.m_callbackChanged; |
| 75 | m_callbackRemoved = prototype.m_callbackRemoved; |
| 76 | m_autoConfigInstance = prototype.m_autoConfigInstance; |
| 77 | m_resourceFilter = prototype.m_resourceFilter; |
| 78 | m_trackedResource = prototype.m_trackedResource; |
| 79 | m_propagate = prototype.m_propagate; |
| 80 | } |
| 81 | |
| 82 | public Dependency createCopy() { |
| 83 | return new ResourceDependencyImpl(this); |
| 84 | } |
| 85 | |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 86 | public synchronized boolean isAvailable() { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 87 | return m_resources.size() > 0; |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 88 | } |
| 89 | |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 90 | public void start(DependencyService service) { |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 91 | boolean needsStarting = false; |
| 92 | synchronized (this) { |
| 93 | m_services.add(service); |
| 94 | if (!m_isStarted) { |
| 95 | m_isStarted = true; |
| 96 | needsStarting = true; |
| 97 | } |
| 98 | } |
| 99 | if (needsStarting) { |
Marcel Offermans | 3d92121 | 2010-08-09 13:37:02 +0000 | [diff] [blame^] | 100 | Dictionary props = null; |
| 101 | if (m_trackedResource != null) { |
| 102 | props = new Properties(); |
| 103 | props.put(ResourceHandler.URL, m_trackedResource); |
| 104 | } |
| 105 | else if (m_resourceFilter != null) { |
Marcel Offermans | 266eee5 | 2009-12-08 10:56:09 +0000 | [diff] [blame] | 106 | props = new Properties(); |
Marcel Offermans | 3d92121 | 2010-08-09 13:37:02 +0000 | [diff] [blame^] | 107 | props.put(ResourceHandler.FILTER, m_resourceFilter); |
Marcel Offermans | 266eee5 | 2009-12-08 10:56:09 +0000 | [diff] [blame] | 108 | } |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 109 | m_registration = m_context.registerService(ResourceHandler.class.getName(), this, props); |
| 110 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | public void stop(DependencyService service) { |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 114 | boolean needsStopping = false; |
| 115 | synchronized (this) { |
| 116 | if (m_services.size() == 1 && m_services.contains(service)) { |
| 117 | m_isStarted = false; |
| 118 | needsStopping = true; |
| 119 | m_services.remove(service); |
| 120 | } |
| 121 | } |
| 122 | if (needsStopping) { |
| 123 | m_registration.unregister(); |
| 124 | m_registration = null; |
| 125 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 126 | } |
| 127 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 128 | public void added(URL resource) { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 129 | if (m_trackedResource == null || m_trackedResource.equals(resource)) { |
| 130 | long counter; |
| 131 | Object[] services; |
| 132 | synchronized (this) { |
| 133 | m_resources.add(resource); |
| 134 | counter = m_resources.size(); |
| 135 | services = m_services.toArray(); |
| 136 | } |
| 137 | for (int i = 0; i < services.length; i++) { |
| 138 | DependencyService ds = (DependencyService) services[i]; |
| 139 | if (counter == 1) { |
| 140 | ds.dependencyAvailable(this); |
| 141 | if (!isRequired()) { |
| 142 | invokeAdded(ds, resource); |
| 143 | } |
| 144 | } |
| 145 | else { |
| 146 | ds.dependencyChanged(this); |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 147 | invokeAdded(ds, resource); |
| 148 | } |
| 149 | } |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 150 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 151 | } |
| 152 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 153 | public void changed(URL resource) { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 154 | if (m_trackedResource == null || m_trackedResource.equals(resource)) { |
| 155 | Object[] services; |
| 156 | synchronized (this) { |
| 157 | services = m_services.toArray(); |
| 158 | } |
| 159 | for (int i = 0; i < services.length; i++) { |
| 160 | DependencyService ds = (DependencyService) services[i]; |
| 161 | invokeChanged(ds, resource); |
| 162 | } |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 163 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 164 | } |
| 165 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 166 | public void removed(URL resource) { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 167 | if (m_trackedResource == null || m_trackedResource.equals(resource)) { |
| 168 | long counter; |
| 169 | Object[] services; |
| 170 | synchronized (this) { |
| 171 | m_resources.remove(resource); |
| 172 | counter = m_resources.size(); |
| 173 | services = m_services.toArray(); |
| 174 | } |
| 175 | for (int i = 0; i < services.length; i++) { |
| 176 | DependencyService ds = (DependencyService) services[i]; |
| 177 | if (counter == 0) { |
| 178 | ds.dependencyUnavailable(this); |
| 179 | if (!isRequired()) { |
| 180 | invokeRemoved(ds, resource); |
| 181 | } |
| 182 | } |
| 183 | else { |
| 184 | ds.dependencyChanged(this); |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 185 | invokeRemoved(ds, resource); |
| 186 | } |
| 187 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 188 | } |
| 189 | } |
| 190 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 191 | public void invokeAdded(DependencyService ds, URL serviceInstance) { |
Marcel Offermans | ea89b86 | 2010-06-24 13:14:43 +0000 | [diff] [blame] | 192 | invoke(ds, serviceInstance, m_callbackAdded); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 193 | } |
| 194 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 195 | public void invokeChanged(DependencyService ds, URL serviceInstance) { |
Marcel Offermans | ea89b86 | 2010-06-24 13:14:43 +0000 | [diff] [blame] | 196 | invoke(ds, serviceInstance, m_callbackChanged); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 197 | } |
| 198 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 199 | public void invokeRemoved(DependencyService ds, URL serviceInstance) { |
Marcel Offermans | ea89b86 | 2010-06-24 13:14:43 +0000 | [diff] [blame] | 200 | invoke(ds, serviceInstance, m_callbackRemoved); |
| 201 | } |
| 202 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 203 | private void invoke(DependencyService ds, URL serviceInstance, String name) { |
Marcel Offermans | ea89b86 | 2010-06-24 13:14:43 +0000 | [diff] [blame] | 204 | if (name != null) { |
| 205 | ds.invokeCallbackMethod(getCallbackInstances(ds), name, |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 206 | new Class[][] {{ Service.class, URL.class }, { Service.class, Object.class }, { Service.class }, { URL.class }, { Object.class }, {}}, |
Marcel Offermans | ea89b86 | 2010-06-24 13:14:43 +0000 | [diff] [blame] | 207 | new Object[][] {{ ds.getServiceInterface(), serviceInstance }, { ds.getServiceInterface(), serviceInstance }, { ds.getServiceInterface() }, { serviceInstance }, { serviceInstance }, {}} |
Marcel Offermans | 61a8114 | 2010-04-02 15:16:50 +0000 | [diff] [blame] | 208 | ); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 209 | } |
| 210 | } |
Marcel Offermans | ea89b86 | 2010-06-24 13:14:43 +0000 | [diff] [blame] | 211 | |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 212 | /** |
| 213 | * Sets the callbacks for this service. These callbacks can be used as hooks whenever a |
| 214 | * dependency is added or removed. When you specify callbacks, the auto configuration |
| 215 | * feature is automatically turned off, because we're assuming you don't need it in this |
| 216 | * case. |
| 217 | * |
| 218 | * @param added the method to call when a service was added |
| 219 | * @param removed the method to call when a service was removed |
| 220 | * @return this service dependency |
| 221 | */ |
| 222 | public synchronized ResourceDependency setCallbacks(String added, String removed) { |
| 223 | return setCallbacks(null, added, null, removed); |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * Sets the callbacks for this service. These callbacks can be used as hooks whenever a |
| 228 | * dependency is added, changed or removed. When you specify callbacks, the auto |
| 229 | * configuration feature is automatically turned off, because we're assuming you don't |
| 230 | * need it in this case. |
| 231 | * |
| 232 | * @param added the method to call when a service was added |
| 233 | * @param changed the method to call when a service was changed |
| 234 | * @param removed the method to call when a service was removed |
| 235 | * @return this service dependency |
| 236 | */ |
| 237 | public synchronized ResourceDependency setCallbacks(String added, String changed, String removed) { |
| 238 | return setCallbacks(null, added, changed, removed); |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Sets the callbacks for this service. These callbacks can be used as hooks whenever a |
| 243 | * dependency is added or removed. They are called on the instance you provide. When you |
| 244 | * specify callbacks, the auto configuration feature is automatically turned off, because |
| 245 | * we're assuming you don't need it in this case. |
| 246 | * |
| 247 | * @param instance the instance to call the callbacks on |
| 248 | * @param added the method to call when a service was added |
| 249 | * @param removed the method to call when a service was removed |
| 250 | * @return this service dependency |
| 251 | */ |
| 252 | public synchronized ResourceDependency setCallbacks(Object instance, String added, String removed) { |
| 253 | return setCallbacks(instance, added, null, removed); |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Sets the callbacks for this service. These callbacks can be used as hooks whenever a |
| 258 | * dependency is added, changed or removed. They are called on the instance you provide. When you |
| 259 | * specify callbacks, the auto configuration feature is automatically turned off, because |
| 260 | * we're assuming you don't need it in this case. |
| 261 | * |
| 262 | * @param instance the instance to call the callbacks on |
| 263 | * @param added the method to call when a service was added |
| 264 | * @param changed the method to call when a service was changed |
| 265 | * @param removed the method to call when a service was removed |
| 266 | * @return this service dependency |
| 267 | */ |
| 268 | public synchronized ResourceDependency setCallbacks(Object instance, String added, String changed, String removed) { |
| 269 | ensureNotActive(); |
| 270 | // if at least one valid callback is specified, we turn off auto configuration |
| 271 | if (added != null || removed != null || changed != null) { |
| 272 | setAutoConfig(false); |
| 273 | } |
| 274 | m_callbackInstance = instance; |
| 275 | m_callbackAdded = added; |
| 276 | m_callbackChanged = changed; |
| 277 | m_callbackRemoved = removed; |
| 278 | return this; |
| 279 | } |
| 280 | |
| 281 | private void ensureNotActive() { |
| 282 | if (m_registration != null) { |
| 283 | throw new IllegalStateException("Cannot modify state while active."); |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | /** |
| 288 | * Sets auto configuration for this service. Auto configuration allows the |
| 289 | * dependency to fill in any attributes in the service implementation that |
| 290 | * are of the same type as this dependency. Default is on. |
| 291 | * |
| 292 | * @param autoConfig the value of auto config |
| 293 | * @return this service dependency |
| 294 | */ |
| 295 | public synchronized ResourceDependency setAutoConfig(boolean autoConfig) { |
| 296 | ensureNotActive(); |
| 297 | m_autoConfig = autoConfig; |
| 298 | return this; |
| 299 | } |
| 300 | |
| 301 | /** |
| 302 | * Sets auto configuration for this service. Auto configuration allows the |
| 303 | * dependency to fill in the attribute in the service implementation that |
| 304 | * has the same type and instance name. |
| 305 | * |
| 306 | * @param instanceName the name of attribute to auto config |
| 307 | * @return this service dependency |
| 308 | */ |
| 309 | public synchronized ResourceDependency setAutoConfig(String instanceName) { |
| 310 | ensureNotActive(); |
| 311 | m_autoConfig = (instanceName != null); |
| 312 | m_autoConfigInstance = instanceName; |
| 313 | return this; |
| 314 | } |
| 315 | |
Marcel Offermans | 61a8114 | 2010-04-02 15:16:50 +0000 | [diff] [blame] | 316 | // private void invokeCallbackMethod(Object[] instances, String methodName, Object service) { |
| 317 | // for (int i = 0; i < instances.length; i++) { |
| 318 | // try { |
| 319 | // invokeCallbackMethod(instances[i], methodName, service); |
| 320 | // } |
| 321 | // catch (NoSuchMethodException e) { |
| 322 | // m_logger.log(Logger.LOG_DEBUG, "Method '" + methodName + "' does not exist on " + instances[i] + ". Callback skipped."); |
| 323 | // } |
| 324 | // } |
| 325 | // } |
| 326 | // |
| 327 | // private void invokeCallbackMethod(Object instance, String methodName, Object service) throws NoSuchMethodException { |
| 328 | // Class currentClazz = instance.getClass(); |
| 329 | // boolean done = false; |
| 330 | // while (!done && currentClazz != null) { |
| 331 | // done = invokeMethod(instance, currentClazz, methodName, |
| 332 | // new Class[][] {{Resource.class}, {Object.class}, {}}, |
| 333 | // new Object[][] {{service}, {service}, {}}, |
| 334 | // false); |
| 335 | // if (!done) { |
| 336 | // currentClazz = currentClazz.getSuperclass(); |
| 337 | // } |
| 338 | // } |
| 339 | // if (!done && currentClazz == null) { |
| 340 | // throw new NoSuchMethodException(methodName); |
| 341 | // } |
| 342 | // } |
| 343 | // |
| 344 | // private boolean invokeMethod(Object object, Class clazz, String name, Class[][] signatures, Object[][] parameters, boolean isSuper) { |
| 345 | // Method m = null; |
| 346 | // for (int i = 0; i < signatures.length; i++) { |
| 347 | // Class[] signature = signatures[i]; |
| 348 | // try { |
| 349 | // m = clazz.getDeclaredMethod(name, signature); |
| 350 | // if (!(isSuper && Modifier.isPrivate(m.getModifiers()))) { |
| 351 | // m.setAccessible(true); |
| 352 | // try { |
| 353 | // m.invoke(object, parameters[i]); |
| 354 | // } |
| 355 | // catch (InvocationTargetException e) { |
| 356 | // m_logger.log(Logger.LOG_ERROR, "Exception while invoking method " + m + ".", e); |
| 357 | // } |
| 358 | // // we did find and invoke the method, so we return true |
| 359 | // return true; |
| 360 | // } |
| 361 | // } |
| 362 | // catch (NoSuchMethodException e) { |
| 363 | // // ignore this and keep looking |
| 364 | // } |
| 365 | // catch (Exception e) { |
| 366 | // // could not even try to invoke the method |
| 367 | // m_logger.log(Logger.LOG_ERROR, "Exception while trying to invoke method " + m + ".", e); |
| 368 | // } |
| 369 | // } |
| 370 | // return false; |
| 371 | // } |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 372 | |
| 373 | private synchronized Object[] getCallbackInstances(DependencyService ds) { |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 374 | if (m_callbackInstance == null) { |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 375 | return ds.getCompositionInstances(); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 376 | } |
Marcel Offermans | 203bdad | 2009-12-04 09:23:04 +0000 | [diff] [blame] | 377 | else { |
| 378 | return new Object[] { m_callbackInstance }; |
| 379 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 380 | } |
| 381 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 382 | public ResourceDependency setResource(URL resource) { |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 383 | m_trackedResource = resource; |
| 384 | return this; |
| 385 | } |
| 386 | |
| 387 | public synchronized ResourceDependency setRequired(boolean required) { |
| 388 | ensureNotActive(); |
Marcel Offermans | 61a8114 | 2010-04-02 15:16:50 +0000 | [diff] [blame] | 389 | setIsRequired(required); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 390 | return this; |
| 391 | } |
| 392 | |
| 393 | public ResourceDependency setFilter(String resourceFilter) { |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 394 | ensureNotActive(); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 395 | m_resourceFilter = resourceFilter; |
| 396 | return this; |
| 397 | } |
| 398 | public synchronized boolean isAutoConfig() { |
| 399 | return m_autoConfig; |
| 400 | } |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 401 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 402 | public URL getResource() { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 403 | return lookupResource(); |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 404 | } |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 405 | |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 406 | private URL lookupResource() { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 407 | try { |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 408 | return (URL) m_resources.get(0); |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 409 | } |
| 410 | catch (IndexOutOfBoundsException e) { |
| 411 | return null; |
| 412 | } |
| 413 | } |
| 414 | |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 415 | public Object getAutoConfigInstance() { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 416 | return lookupResource(); |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | public String getAutoConfigName() { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 420 | return m_autoConfigInstance; |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 421 | } |
| 422 | |
| 423 | public Class getAutoConfigType() { |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 424 | return URL.class; |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | public void invokeAdded(DependencyService service) { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 428 | // we remember these for future reference, needed for required callbacks |
| 429 | m_resourceInstance = lookupResource(); |
| 430 | invokeAdded(service, m_resourceInstance); |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 431 | } |
| 432 | |
| 433 | public void invokeRemoved(DependencyService service) { |
Marcel Offermans | b99e7e4 | 2009-12-10 09:11:32 +0000 | [diff] [blame] | 434 | invokeRemoved(service, m_resourceInstance); |
| 435 | m_resourceInstance = null; |
Marcel Offermans | 001db05 | 2009-12-08 08:58:40 +0000 | [diff] [blame] | 436 | } |
Marcel Offermans | 117aa2f | 2009-12-10 09:48:17 +0000 | [diff] [blame] | 437 | |
| 438 | public ResourceDependency setPropagate(boolean propagate) { |
| 439 | ensureNotActive(); |
| 440 | m_propagate = propagate; |
| 441 | return this; |
| 442 | } |
| 443 | |
Marcel Offermans | 26081d3 | 2010-07-12 12:43:42 +0000 | [diff] [blame] | 444 | public ResourceDependency setPropagate(Object instance, String method) { |
| 445 | setPropagate(instance != null && method != null); |
| 446 | m_propagateCallbackInstance = instance; |
| 447 | m_propagateCallbackMethod = method; |
| 448 | return this; |
| 449 | } |
| 450 | |
Marcel Offermans | 117aa2f | 2009-12-10 09:48:17 +0000 | [diff] [blame] | 451 | public Dictionary getProperties() { |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 452 | URL resource = lookupResource(); |
Marcel Offermans | 117aa2f | 2009-12-10 09:48:17 +0000 | [diff] [blame] | 453 | if (resource != null) { |
Marcel Offermans | 26081d3 | 2010-07-12 12:43:42 +0000 | [diff] [blame] | 454 | if (m_propagateCallbackInstance != null && m_propagateCallbackMethod != null) { |
| 455 | try { |
| 456 | return (Dictionary) InvocationUtil.invokeCallbackMethod(m_propagateCallbackInstance, m_propagateCallbackMethod, new Class[][] {{ URL.class }}, new Object[][] {{ resource }}); |
| 457 | } |
| 458 | catch (InvocationTargetException e) { |
| 459 | m_logger.log(LogService.LOG_WARNING, "Exception while invoking callback method", e.getCause()); |
| 460 | } |
| 461 | catch (Exception e) { |
| 462 | m_logger.log(LogService.LOG_WARNING, "Exception while trying to invoke callback method", e); |
| 463 | } |
| 464 | throw new IllegalStateException("Could not invoke callback"); |
| 465 | } |
| 466 | else { |
| 467 | Properties props = new Properties(); |
| 468 | props.setProperty(ResourceHandler.HOST, resource.getHost()); |
| 469 | props.setProperty(ResourceHandler.PATH, resource.getPath()); |
| 470 | props.setProperty(ResourceHandler.PROTOCOL, resource.getProtocol()); |
| 471 | props.setProperty(ResourceHandler.PORT, Integer.toString(resource.getPort())); |
| 472 | return props; |
| 473 | } |
Marcel Offermans | 117aa2f | 2009-12-10 09:48:17 +0000 | [diff] [blame] | 474 | } |
| 475 | else { |
| 476 | throw new IllegalStateException("cannot find resource"); |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | public boolean isPropagated() { |
| 481 | return m_propagate; |
| 482 | } |
Marcel Offermans | 61a8114 | 2010-04-02 15:16:50 +0000 | [diff] [blame] | 483 | |
| 484 | public ResourceDependency setInstanceBound(boolean isInstanceBound) { |
| 485 | setIsInstanceBound(isInstanceBound); |
| 486 | return this; |
| 487 | } |
Marcel Offermans | b1959f4 | 2010-07-01 12:23:51 +0000 | [diff] [blame] | 488 | |
| 489 | public String getName() { |
| 490 | StringBuilder sb = new StringBuilder(); |
| 491 | if (m_resourceFilter != null) { |
| 492 | sb.append(m_resourceFilter); |
| 493 | } |
| 494 | if (m_trackedResource != null) { |
Marcel Offermans | a8c213f | 2010-07-02 17:27:20 +0000 | [diff] [blame] | 495 | sb.append(m_trackedResource.toString()); |
Marcel Offermans | b1959f4 | 2010-07-01 12:23:51 +0000 | [diff] [blame] | 496 | } |
| 497 | return sb.toString(); |
| 498 | } |
| 499 | |
| 500 | public int getState() { |
| 501 | return (isAvailable() ? 1 : 0) + (isRequired() ? 2 : 0); |
| 502 | } |
| 503 | |
| 504 | public String getType() { |
| 505 | return "resource"; |
| 506 | } |
Marcel Offermans | e14b342 | 2009-11-25 23:04:32 +0000 | [diff] [blame] | 507 | } |