opendaylight/config/config-manager/src/main/java/org/opendaylight/controller/config/manager/impl/ServiceReferenceRegistryImpl.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.config.manager.impl;
   9
  10 import org.opendaylight.controller.config.api.LookupRegistry;
  11 import org.opendaylight.controller.config.api.ModuleIdentifier;
  12 import org.opendaylight.controller.config.api.ServiceReferenceReadableRegistry;
  13 import org.opendaylight.controller.config.api.ServiceReferenceWritableRegistry;
  14 import org.opendaylight.controller.config.api.annotations.ServiceInterfaceAnnotation;
  15 import org.opendaylight.controller.config.api.jmx.ObjectNameUtil;
  16 import org.opendaylight.controller.config.manager.impl.jmx.BaseJMXRegistrator;
  17 import org.opendaylight.controller.config.manager.impl.jmx.ServiceReference;
  18 import org.opendaylight.controller.config.manager.impl.jmx.ServiceReferenceMXBeanImpl;
  19 import org.opendaylight.controller.config.manager.impl.jmx.ServiceReferenceRegistrator;
  20 import org.opendaylight.controller.config.manager.impl.jmx.ServiceReferenceRegistrator.ServiceReferenceJMXRegistration;
  21 import org.opendaylight.controller.config.manager.impl.jmx.ServiceReferenceRegistrator.ServiceReferenceTransactionRegistratorFactory;
  22 import org.opendaylight.controller.config.manager.impl.jmx.ServiceReferenceRegistrator.ServiceReferenceTransactionRegistratorFactoryImpl;
  23 import org.opendaylight.controller.config.manager.impl.util.InterfacesHelper;
  24 import org.opendaylight.controller.config.spi.ModuleFactory;
  25 import org.osgi.framework.BundleContext;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 import javax.management.InstanceAlreadyExistsException;
  30 import javax.management.InstanceNotFoundException;
  31 import javax.management.ObjectName;
  32 import java.util.Collections;
  33 import java.util.HashMap;
  34 import java.util.HashSet;
  35 import java.util.Map;
  36 import java.util.Map.Entry;
  37 import java.util.Set;
  38
  39 import static com.google.common.base.Preconditions.checkNotNull;
  40
  41 public class ServiceReferenceRegistryImpl implements CloseableServiceReferenceReadableRegistry, SearchableServiceReferenceWritableRegistry {
  42     private static final Logger logger = LoggerFactory.getLogger(ServiceReferenceRegistryImpl.class);
  43
  44     private final Map<String, ModuleFactory> factories;
  45     private final Map<String, Set<String>> factoryNamesToQNames;
  46     // validator of incoming ObjectNames - throws InstanceNotFoundException if not found either in registry or transaction
  47     private final LookupRegistry lookupRegistry;
  48     private final ServiceReferenceRegistrator serviceReferenceRegistrator;
  49     // helper method for getting QName of SI from namespace + local name
  50     private final Map<String /* namespace */, Map<String /* local name */, ServiceInterfaceAnnotation>> namespacesToAnnotations;
  51     private final Map<String /* service qName */, ServiceInterfaceAnnotation> serviceQNamesToAnnotations;
  52     // all Service Interface qNames for sanity checking
  53     private final Set<String /* qName */> allQNames;
  54     Map<ModuleIdentifier, Map<String /* service ref name */, ServiceInterfaceAnnotation >> modulesToServiceRef = new HashMap<>();
  55
  56
  57     // actual reference database
  58     private final Map<ServiceReference, ModuleIdentifier> refNames = new HashMap<>();
  59     private final boolean writable;
  60     private final Map<ServiceReference, Entry<ServiceReferenceMXBeanImpl, ServiceReferenceJMXRegistration>> mBeans = new HashMap<>();
  61
  62     /**
  63      * Static constructor for config registry. Since only transaction can write to this registry, it will
  64      * return blank state.
  65      */
  66     public static CloseableServiceReferenceReadableRegistry createInitialSRLookupRegistry() {
  67         // since this is initial state, just throw exception:
  68         LookupRegistry lookupRegistry = new LookupRegistry() {
  69             @Override
  70             public Set<ObjectName> lookupConfigBeans() {
  71                 throw new UnsupportedOperationException();
  72             }
  73
  74             @Override
  75             public Set<ObjectName> lookupConfigBeans(String moduleName) {
  76                 throw new UnsupportedOperationException();
  77             }
  78
  79             @Override
  80             public Set<ObjectName> lookupConfigBeans(String moduleName, String instanceName) {
  81                 throw new UnsupportedOperationException();
  82             }
  83
  84             @Override
  85             public ObjectName lookupConfigBean(String moduleName, String instanceName) throws InstanceNotFoundException {
  86                 throw new UnsupportedOperationException();
  87             }
  88
  89             @Override
  90             public void checkConfigBeanExists(ObjectName objectName) throws InstanceNotFoundException {
  91                 throw new InstanceNotFoundException("Cannot find " + objectName + " - Tried to use mocking registry");
  92             }
  93
  94             @Override
  95             public Set<String> getAvailableModuleFactoryQNames() {
  96                 throw new UnsupportedOperationException();
  97             }
  98
  99             @Override
 100             public String toString() {
 101                 return "initial";
 102             }
 103         };
 104         ServiceReferenceTransactionRegistratorFactory serviceReferenceRegistratorFactory = new ServiceReferenceTransactionRegistratorFactory(){
 105             @Override
 106             public ServiceReferenceRegistrator create() {
 107                 return new ServiceReferenceRegistrator() {
 108                     @Override
 109                     public String getNullableTransactionName() {
 110                         throw new UnsupportedOperationException();
 111                     }
 112
 113                     @Override
 114                     public ServiceReferenceJMXRegistration registerMBean(ServiceReferenceMXBeanImpl object, ObjectName on) throws InstanceAlreadyExistsException {
 115                         throw new UnsupportedOperationException();
 116                     }
 117
 118                     @Override
 119                     public void close() {
 120
 121                     }
 122                 };
 123             }
 124         };
 125         return new ServiceReferenceRegistryImpl(Collections.<String, ModuleFactory>emptyMap(), lookupRegistry,
 126                 serviceReferenceRegistratorFactory, false);
 127     }
 128
 129     /**
 130      * Static constructor for transaction controller. Take current state as seen by config registry, allow writing new data.
 131      */
 132     public static SearchableServiceReferenceWritableRegistry createSRWritableRegistry(ServiceReferenceReadableRegistry oldReadableRegistry,
 133                                                     ConfigTransactionLookupRegistry txLookupRegistry,
 134                                                     Map<String, Map.Entry<ModuleFactory, BundleContext>> currentlyRegisteredFactories) {
 135
 136         if (txLookupRegistry == null) {
 137             throw new IllegalArgumentException("txLookupRegistry is null");
 138         }
 139         ServiceReferenceRegistryImpl old = (ServiceReferenceRegistryImpl) oldReadableRegistry;
 140         Map<String, ModuleFactory> factories = extractFactoriesMap(currentlyRegisteredFactories);
 141         ServiceReferenceTransactionRegistratorFactory serviceReferenceRegistratorFactory = new ServiceReferenceTransactionRegistratorFactoryImpl(
 142                 txLookupRegistry.getTxModuleJMXRegistrator(), txLookupRegistry.getTxModuleJMXRegistrator().getTransactionName());
 143         ServiceReferenceRegistryImpl newRegistry = new ServiceReferenceRegistryImpl(factories, txLookupRegistry,
 144                 serviceReferenceRegistratorFactory, true);
 145         copy(old, newRegistry, txLookupRegistry.getTransactionIdentifier().getName());
 146         return newRegistry;
 147     }
 148
 149     /**
 150      * Copy back state to config registry after commit.
 151      */
 152     public static CloseableServiceReferenceReadableRegistry createSRReadableRegistry(ServiceReferenceWritableRegistry oldWritableRegistry,
 153                                                                             LookupRegistry lookupRegistry, BaseJMXRegistrator baseJMXRegistrator) {
 154         ServiceReferenceRegistryImpl old = (ServiceReferenceRegistryImpl) oldWritableRegistry;
 155
 156         // even if factories do change, nothing in the mapping can change between transactions
 157         ServiceReferenceTransactionRegistratorFactory serviceReferenceRegistratorFactory = new ServiceReferenceTransactionRegistratorFactoryImpl(baseJMXRegistrator);
 158         ServiceReferenceRegistryImpl newRegistry = new ServiceReferenceRegistryImpl(old.factories, lookupRegistry,
 159                 serviceReferenceRegistratorFactory, false);
 160         copy(old, newRegistry, null);
 161         return newRegistry;
 162     }
 163
 164     /**
 165      * Fill refNames and mBeans maps from old instance
 166      */
 167     private static void copy(ServiceReferenceRegistryImpl old, ServiceReferenceRegistryImpl newRegistry, String nullableDstTransactionName) {
 168         for (Entry<ServiceReference, Entry<ServiceReferenceMXBeanImpl, ServiceReferenceJMXRegistration>> refNameEntry : old.mBeans.entrySet()) {
 169             ObjectName currentImplementation;
 170             ObjectName currentImplementationSrc = refNameEntry.getValue().getKey().getCurrentImplementation();
 171             if (nullableDstTransactionName != null) {
 172                 currentImplementation = ObjectNameUtil.withTransactionName(currentImplementationSrc, nullableDstTransactionName);
 173             } else {
 174                 currentImplementation = ObjectNameUtil.withoutTransactionName(currentImplementationSrc);
 175             }
 176             try {
 177                 boolean skipChecks = true;
 178                 newRegistry.saveServiceReference(refNameEntry.getKey(), currentImplementation, skipChecks);
 179             } catch (InstanceNotFoundException e) {
 180                 logger.error("Cannot save service reference({}, {})", refNameEntry.getKey(), currentImplementation);
 181                 throw new IllegalStateException("Possible code error", e);
 182             }
 183         }
 184     }
 185
 186     private static Map<String, ModuleFactory> extractFactoriesMap(Map<String, Map.Entry<ModuleFactory, BundleContext>> currentlyRegisteredFactories) {
 187         Map<String, ModuleFactory> result = new HashMap<>();
 188         for (Entry<String, Entry<ModuleFactory, BundleContext>> entry : currentlyRegisteredFactories.entrySet()) {
 189             result.put(entry.getKey(), entry.getValue().getKey());
 190         }
 191         return result;
 192     }
 193
 194     private ServiceReferenceRegistryImpl(Map<String, ModuleFactory> factories, LookupRegistry lookupRegistry,
 195                                          ServiceReferenceTransactionRegistratorFactory serviceReferenceRegistratorFactory,
 196                                          boolean writable) {
 197         this.factories = factories;
 198         this.writable = writable;
 199         this.lookupRegistry = lookupRegistry;
 200
 201         this.serviceReferenceRegistrator = serviceReferenceRegistratorFactory.create();
 202
 203         Map<String, Set<String /* QName */>> modifiableFactoryNamesToQNames = new HashMap<>();
 204         Set<ServiceInterfaceAnnotation> allAnnotations = new HashSet<>();
 205         Set<String /* qName */> allQNames = new HashSet<>();
 206
 207
 208         for (Entry<String, ModuleFactory> entry : factories.entrySet()) {
 209             if (entry.getKey().equals(entry.getValue().getImplementationName()) == false) {
 210                 logger.error("Possible error in code: Mismatch between supplied and actual name of {}", entry);
 211                 throw new IllegalArgumentException("Possible error in code: Mismatch between supplied and actual name of " + entry);
 212             }
 213             Set<ServiceInterfaceAnnotation> siAnnotations = InterfacesHelper.getServiceInterfaceAnnotations(entry.getValue());
 214             Set<String> qNames = new HashSet<>();
 215             for (ServiceInterfaceAnnotation sia: siAnnotations) {
 216                 qNames.add(sia.value());
 217             }
 218             allAnnotations.addAll(siAnnotations);
 219             allQNames.addAll(qNames);
 220             modifiableFactoryNamesToQNames.put(entry.getKey(), Collections.unmodifiableSet(qNames));
 221         }
 222         this.factoryNamesToQNames = Collections.unmodifiableMap(modifiableFactoryNamesToQNames);
 223         this.allQNames = Collections.unmodifiableSet(allQNames);
 224         // fill namespacesToAnnotations
 225         Map<String /* namespace */, Map<String /* localName */, ServiceInterfaceAnnotation>> modifiableNamespacesToAnnotations =
 226                 new HashMap<>();
 227         Map<String /* service qName*/, ServiceInterfaceAnnotation> modifiableServiceQNamesToAnnotations = new HashMap<>();
 228         for (ServiceInterfaceAnnotation sia : allAnnotations) {
 229             Map<String, ServiceInterfaceAnnotation> ofNamespace = modifiableNamespacesToAnnotations.get(sia.namespace());
 230             if (ofNamespace == null) {
 231                 ofNamespace = new HashMap<>();
 232                 modifiableNamespacesToAnnotations.put(sia.namespace(), ofNamespace);
 233             }
 234             if (ofNamespace.containsKey(sia.localName())) {
 235                 logger.error("Cannot construct namespacesToAnnotations map, conflict between local names in {}, offending local name: {}, map so far {}",
 236                         sia.namespace(), sia.localName(), modifiableNamespacesToAnnotations);
 237                 throw new IllegalArgumentException("Conflict between local names in " + sia.namespace() + " : " + sia.localName());
 238             }
 239             ofNamespace.put(sia.localName(), sia);
 240             modifiableServiceQNamesToAnnotations.put(sia.value(), sia);
 241         }
 242         this.namespacesToAnnotations = Collections.unmodifiableMap(modifiableNamespacesToAnnotations);
 243         this.serviceQNamesToAnnotations = Collections.unmodifiableMap(modifiableServiceQNamesToAnnotations);
 244         logger.trace("factoryNamesToQNames:{}", this.factoryNamesToQNames);
 245     }
 246
 247     @Override
 248     public Map<String /* service ref */, ServiceInterfaceAnnotation> findServiceInterfaces(ModuleIdentifier moduleIdentifier) {
 249         Map<String, ServiceInterfaceAnnotation> result = modulesToServiceRef.get(moduleIdentifier);
 250         if (result == null) {
 251             return Collections.emptyMap();
 252         }
 253         return Collections.unmodifiableMap(result);
 254     }
 255
 256     @Override
 257     public synchronized Set<String> lookupServiceInterfaceNames(ObjectName objectName) throws InstanceNotFoundException {
 258         lookupRegistry.checkConfigBeanExists(objectName);
 259
 260         String factoryName = ObjectNameUtil.getFactoryName(objectName);
 261         Set<String> serviceInterfaceAnnotations = factoryNamesToQNames.get(factoryName);
 262         if (serviceInterfaceAnnotations == null) {
 263             logger.error("Possible error in code: cannot find factory annotations of '{}' extracted from ON {} in {}",
 264                     factoryName, objectName, factoryNamesToQNames);
 265             throw new IllegalArgumentException("Cannot find factory with name " + factoryName);
 266         }
 267         return serviceInterfaceAnnotations;
 268     }
 269
 270     @Override
 271     public synchronized String getServiceInterfaceName(String namespace, String localName) {
 272         Map<String /* localName */, ServiceInterfaceAnnotation> ofNamespace = namespacesToAnnotations.get(namespace);
 273         if (ofNamespace == null) {
 274             logger.error("Cannot find namespace {} in {}", namespace, namespacesToAnnotations);
 275             throw new IllegalArgumentException("Cannot find namespace " + namespace);
 276         }
 277         ServiceInterfaceAnnotation sia = ofNamespace.get(localName);
 278         if (sia == null) {
 279             logger.error("Cannot find local name {} in namespace {}, found only {}", localName, namespace, ofNamespace);
 280             throw new IllegalArgumentException("Cannot find local name " + localName + " in namespace " + namespace);
 281         }
 282         return sia.value();
 283     }
 284
 285     // reading:
 286
 287     @Override
 288     public synchronized Map<String /* serviceInterfaceName */, Map<String/* refName */, ObjectName>> getServiceMapping() {
 289         Map<String /* serviceInterfaceName */, Map<String/* refName */, ObjectName>> result = new HashMap<>();
 290         for (Entry<ServiceReference, ModuleIdentifier> entry: refNames.entrySet()) {
 291             String qName = entry.getKey().getServiceInterfaceQName();
 292             Map<String /* refName */, ObjectName> innerMap = result.get(qName);
 293             if (innerMap == null) {
 294                 innerMap = new HashMap<>();
 295                 result.put(qName, innerMap);
 296             }
 297             innerMap.put(entry.getKey().getRefName(), getObjectName(entry.getValue()));
 298         }
 299         return result;
 300     }
 301
 302     private ObjectName getObjectName(ModuleIdentifier moduleIdentifier) {
 303         ObjectName on;
 304         try {
 305             on = lookupRegistry.lookupConfigBean(moduleIdentifier.getFactoryName(), moduleIdentifier.getInstanceName());
 306         } catch (InstanceNotFoundException e) {
 307             logger.error("Cannot find instance {}", moduleIdentifier);
 308             throw new IllegalStateException("Cannot find instance " + moduleIdentifier, e);
 309         }
 310         return on;
 311     }
 312
 313     @Override
 314     public synchronized ObjectName lookupConfigBeanByServiceInterfaceName(String serviceInterfaceQName, String refName) {
 315         ServiceReference serviceReference = new ServiceReference(serviceInterfaceQName, refName);
 316         ModuleIdentifier moduleIdentifier = refNames.get(serviceReference);
 317         if (moduleIdentifier == null) {
 318             logger.error("Cannot find qname {} and refName {} in {}", serviceInterfaceQName, refName, refName);
 319             throw new IllegalArgumentException("Cannot find " + serviceReference);
 320         }
 321         return getObjectName(moduleIdentifier);
 322     }
 323
 324     @Override
 325     public synchronized Map<String /* refName */, ObjectName> lookupServiceReferencesByServiceInterfaceName(String serviceInterfaceQName) {
 326         Map<String, Map<String, ObjectName>> serviceMapping = getServiceMapping();
 327         Map<String, ObjectName> innerMap = serviceMapping.get(serviceInterfaceQName);
 328         if (innerMap == null) {
 329             logger.error("Cannot find qname {} in {}", serviceInterfaceQName, refNames);
 330             throw new IllegalArgumentException("Cannot find " + serviceInterfaceQName);
 331         }
 332         return innerMap;
 333     }
 334
 335     @Override
 336     public synchronized ObjectName getServiceReference(String serviceInterfaceQName, String refName) throws InstanceNotFoundException {
 337         ServiceReference serviceReference = new ServiceReference(serviceInterfaceQName, refName);
 338         if (mBeans.containsKey(serviceReference) == false) {
 339             throw new InstanceNotFoundException("Cannot find " + serviceReference);
 340         }
 341         return getServiceON(serviceReference);
 342     }
 343
 344     @Override
 345     public synchronized void checkServiceReferenceExists(ObjectName objectName) throws InstanceNotFoundException {
 346         String actualTransactionName = ObjectNameUtil.getTransactionName(objectName);
 347         String expectedTransactionName = serviceReferenceRegistrator.getNullableTransactionName();
 348         if (writable & actualTransactionName == null || (writable && actualTransactionName.equals(expectedTransactionName) == false)) {
 349             throw new IllegalArgumentException("Mismatched transaction name in " + objectName);
 350         }
 351         String serviceQName = ObjectNameUtil.getServiceQName(objectName);
 352         String referenceName = ObjectNameUtil.getReferenceName(objectName);
 353         ServiceReference serviceReference = new ServiceReference(serviceQName, referenceName);
 354         if (refNames.containsKey(serviceReference) == false) {
 355             logger.warn("Cannot find {} in {}", serviceReference, refNames);
 356             throw new InstanceNotFoundException("Service reference not found:" + objectName);
 357         }
 358     }
 359
 360     // writing:
 361
 362     private void assertWritable() {
 363         if (writable == false) {
 364             throw new IllegalStateException("Cannot write to readable registry");
 365         }
 366     }
 367
 368     @Override
 369     public synchronized ObjectName saveServiceReference(String serviceInterfaceName, String refName, ObjectName moduleON)  throws InstanceNotFoundException {
 370         assertWritable();
 371         ServiceReference serviceReference = new ServiceReference(serviceInterfaceName, refName);
 372         return saveServiceReference(serviceReference, moduleON);
 373     }
 374
 375     private synchronized ObjectName saveServiceReference(ServiceReference serviceReference, ObjectName moduleON)
 376             throws InstanceNotFoundException{
 377         return saveServiceReference(serviceReference, moduleON, false);
 378     }
 379
 380     private synchronized ObjectName saveServiceReference(ServiceReference serviceReference, ObjectName moduleON,
 381                                                          boolean skipChecks) throws InstanceNotFoundException {
 382
 383         // make sure it is found
 384         if (skipChecks == false) {
 385             lookupRegistry.checkConfigBeanExists(moduleON);
 386         }
 387         String factoryName = ObjectNameUtil.getFactoryName(moduleON);
 388         String instanceName = ObjectNameUtil.getInstanceName(moduleON);
 389         ModuleIdentifier moduleIdentifier = new ModuleIdentifier(factoryName, instanceName);
 390
 391         // check that service interface name exist
 392         Set<String> serviceInterfaceQNames = factoryNamesToQNames.get(moduleIdentifier.getFactoryName());
 393         if (serviceInterfaceQNames == null) {
 394             logger.error("Possible error in code: cannot find factoryName {} in {}, {}", moduleIdentifier.getFactoryName(),
 395                     factoryNamesToQNames, moduleIdentifier);
 396             throw new IllegalStateException("Possible error in code: cannot find annotations of existing factory " + moduleIdentifier.getFactoryName());
 397         }
 398         // supplied serviceInterfaceName must exist in this collection
 399         if (serviceInterfaceQNames.contains(serviceReference.getServiceInterfaceQName()) == false) {
 400             logger.error("Cannot find qName {} with factory name {}, found {}", serviceReference.getServiceInterfaceQName(), moduleIdentifier.getFactoryName(), serviceInterfaceQNames);
 401             throw new IllegalArgumentException("Cannot find service interface " + serviceReference.getServiceInterfaceQName() + " within factory " + moduleIdentifier.getFactoryName());
 402         }
 403
 404
 405         // create service reference object name, put to mBeans
 406         ObjectName result = getServiceON(serviceReference);
 407         Entry<ServiceReferenceMXBeanImpl, ServiceReferenceJMXRegistration> mxBeanEntry = mBeans.get(serviceReference);
 408         if (mxBeanEntry == null) {
 409             // create dummy mx bean
 410             ServiceReferenceMXBeanImpl dummyMXBean = new ServiceReferenceMXBeanImpl(moduleON);
 411             ServiceReferenceJMXRegistration dummyMXBeanRegistration;
 412             try {
 413                 dummyMXBeanRegistration = serviceReferenceRegistrator.registerMBean(dummyMXBean, result);
 414             } catch (InstanceAlreadyExistsException e) {
 415                 throw new IllegalStateException("Possible error in code. Cannot register " + result, e);
 416             }
 417             mBeans.put(serviceReference, createMXBeanEntry(dummyMXBean, dummyMXBeanRegistration));
 418         } else {
 419             // update
 420             mxBeanEntry.getKey().setCurrentImplementation(moduleON);
 421         }
 422         // save to refNames
 423         refNames.put(serviceReference, moduleIdentifier);
 424         Map<String, ServiceInterfaceAnnotation> refNamesToAnnotations = modulesToServiceRef.get(moduleIdentifier);
 425         if (refNamesToAnnotations == null){
 426             refNamesToAnnotations = new HashMap<>();
 427             modulesToServiceRef.put(moduleIdentifier, refNamesToAnnotations);
 428         }
 429
 430         ServiceInterfaceAnnotation annotation = serviceQNamesToAnnotations.get(serviceReference.getServiceInterfaceQName());
 431         checkNotNull(annotation, "Possible error in code, cannot find annotation for " + serviceReference);
 432         refNamesToAnnotations.put(serviceReference.getRefName(), annotation);
 433         return result;
 434     }
 435
 436     private Entry<ServiceReferenceMXBeanImpl, ServiceReferenceJMXRegistration> createMXBeanEntry(
 437             final ServiceReferenceMXBeanImpl mxBean, final ServiceReferenceJMXRegistration registration) {
 438         return new Entry<ServiceReferenceMXBeanImpl, ServiceReferenceJMXRegistration>() {
 439             @Override
 440             public ServiceReferenceMXBeanImpl getKey() {
 441                 return mxBean;
 442             }
 443
 444             @Override
 445             public ServiceReferenceJMXRegistration getValue() {
 446                 return registration;
 447             }
 448
 449             @Override
 450             public ServiceReferenceJMXRegistration setValue(ServiceReferenceJMXRegistration value) {
 451                 throw new UnsupportedOperationException();
 452             }
 453         };
 454     }
 455
 456     private ObjectName getServiceON(ServiceReference serviceReference) {
 457         if (writable) {
 458             return ObjectNameUtil.createTransactionServiceON(serviceReferenceRegistrator.getNullableTransactionName(),
 459                     serviceReference.getServiceInterfaceQName(), serviceReference.getRefName());
 460         } else {
 461             return ObjectNameUtil.createReadOnlyServiceON(serviceReference.getServiceInterfaceQName(), serviceReference.getRefName());
 462         }
 463     }
 464
 465     @Override
 466     public synchronized void removeServiceReference(String serviceInterfaceName, String refName) throws InstanceNotFoundException{
 467         ServiceReference serviceReference = new ServiceReference(serviceInterfaceName, refName);
 468         removeServiceReference(serviceReference);
 469     }
 470
 471     private synchronized void removeServiceReference(ServiceReference serviceReference) throws InstanceNotFoundException {
 472         logger.debug("Removing service reference {} from {}", serviceReference, this);
 473         assertWritable();
 474         // is the qName known?
 475         if (allQNames.contains(serviceReference.getServiceInterfaceQName()) == false) {
 476             logger.error("Cannot find qname {} in {}", serviceReference.getServiceInterfaceQName(), allQNames);
 477             throw new IllegalArgumentException("Cannot find service interface " + serviceReference.getServiceInterfaceQName());
 478         }
 479         ModuleIdentifier removed = refNames.remove(serviceReference);
 480         if (removed == null){
 481             throw new InstanceNotFoundException("Cannot find " + serviceReference.getServiceInterfaceQName());
 482         }
 483         Entry<ServiceReferenceMXBeanImpl, ServiceReferenceJMXRegistration> entry = mBeans.remove(serviceReference);
 484         if (entry == null) {
 485             throw new IllegalStateException("Possible code error: cannot remove from mBeans: " + serviceReference);
 486         }
 487         entry.getValue().close();
 488     }
 489
 490     @Override
 491     public synchronized void removeAllServiceReferences() {
 492         assertWritable();
 493         for (ServiceReference serviceReference: mBeans.keySet()) {
 494             try {
 495                 removeServiceReference(serviceReference);
 496             } catch (InstanceNotFoundException e) {
 497                 throw new IllegalStateException("Possible error in code", e);
 498             }
 499         }
 500     }
 501
 502     @Override
 503     public synchronized boolean removeServiceReferences(ObjectName moduleObjectName) throws InstanceNotFoundException {
 504         assertWritable();
 505         Set<ServiceReference> serviceReferencesLinkingTo = findServiceReferencesLinkingTo(moduleObjectName);
 506         for (ServiceReference sr : serviceReferencesLinkingTo) {
 507             removeServiceReference(sr);
 508         }
 509         return serviceReferencesLinkingTo.isEmpty() == false;
 510     }
 511
 512     private synchronized Set<ServiceReference> findServiceReferencesLinkingTo(ObjectName moduleObjectName)  throws InstanceNotFoundException {
 513         lookupRegistry.checkConfigBeanExists(moduleObjectName);
 514         String factoryName = ObjectNameUtil.getFactoryName(moduleObjectName);
 515         // check that service interface name exist
 516         Set<String> serviceInterfaceQNames = factoryNamesToQNames.get(factoryName);
 517         if (serviceInterfaceQNames == null) {
 518             logger.error("Possible error in code: cannot find factoryName {} in {}, object name {}", factoryName, factoryNamesToQNames, moduleObjectName);
 519             throw new IllegalStateException("Possible error in code: cannot find annotations of existing factory " + factoryName);
 520         }
 521         String instanceName = ObjectNameUtil.getInstanceName(moduleObjectName);
 522         ModuleIdentifier moduleIdentifier = new ModuleIdentifier(factoryName, instanceName);
 523         Set<ServiceReference> result = new HashSet<>();
 524         for (Entry<ServiceReference, ModuleIdentifier> entry : refNames.entrySet()) {
 525             if (entry.getValue().equals(moduleIdentifier)) {
 526                 result.add(entry.getKey());
 527             }
 528         }
 529         return result;
 530     }
 531
 532
 533     @Override
 534     public String toString() {
 535         return "ServiceReferenceRegistryImpl{" +
 536                 "lookupRegistry=" + lookupRegistry +
 537                 "refNames=" + refNames +
 538                 ", factoryNamesToQNames=" + factoryNamesToQNames +
 539                 '}';
 540     }
 541
 542     @Override
 543     public void close() {
 544         serviceReferenceRegistrator.close();
 545     }
 546 }