opendaylight/config/config-manager/src/main/java/org/opendaylight/controller/config/manager/impl/ConfigTransactionControllerImpl.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 static com.google.common.base.Preconditions.checkNotNull;
  11 import static java.lang.String.format;
  12 import com.google.common.collect.Lists;
  13 import java.util.ArrayList;
  14 import java.util.Collection;
  15 import java.util.HashSet;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.Map.Entry;
  19 import java.util.Set;
  20 import java.util.concurrent.atomic.AtomicBoolean;
  21 import javax.annotation.Nullable;
  22 import javax.annotation.concurrent.GuardedBy;
  23 import javax.management.DynamicMBean;
  24 import javax.management.InstanceAlreadyExistsException;
  25 import javax.management.InstanceNotFoundException;
  26 import javax.management.MBeanServer;
  27 import javax.management.ObjectName;
  28 import org.opendaylight.controller.config.api.DependencyResolver;
  29 import org.opendaylight.controller.config.api.ModuleFactoryNotFoundException;
  30 import org.opendaylight.controller.config.api.ModuleIdentifier;
  31 import org.opendaylight.controller.config.api.ValidationException;
  32 import org.opendaylight.controller.config.api.annotations.ServiceInterfaceAnnotation;
  33 import org.opendaylight.controller.config.api.jmx.ObjectNameUtil;
  34 import org.opendaylight.controller.config.manager.impl.dependencyresolver.DependencyResolverManager;
  35 import org.opendaylight.controller.config.manager.impl.dependencyresolver.ModuleInternalTransactionalInfo;
  36 import org.opendaylight.controller.config.manager.impl.dynamicmbean.DynamicWritableWrapper;
  37 import org.opendaylight.controller.config.manager.impl.dynamicmbean.ReadOnlyAtomicBoolean;
  38 import org.opendaylight.controller.config.manager.impl.dynamicmbean.ReadOnlyAtomicBoolean.ReadOnlyAtomicBooleanImpl;
  39 import org.opendaylight.controller.config.manager.impl.factoriesresolver.HierarchicalConfigMBeanFactoriesHolder;
  40 import org.opendaylight.controller.config.manager.impl.jmx.TransactionModuleJMXRegistrator;
  41 import org.opendaylight.controller.config.manager.impl.jmx.TransactionModuleJMXRegistrator.TransactionModuleJMXRegistration;
  42 import org.opendaylight.controller.config.manager.impl.osgi.mapping.BindingContextProvider;
  43 import org.opendaylight.controller.config.manager.impl.util.InterfacesHelper;
  44 import org.opendaylight.controller.config.spi.Module;
  45 import org.opendaylight.controller.config.spi.ModuleFactory;
  46 import org.opendaylight.yangtools.concepts.Identifiable;
  47 import org.osgi.framework.BundleContext;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50 /**
  51  * This is a JMX bean representing current transaction. It contains
  52  * transaction identifier, unique version and parent version for
  53  * optimistic locking.
  54  */
  55 class ConfigTransactionControllerImpl implements
  56         ConfigTransactionControllerInternal,
  57         ConfigTransactionControllerImplMXBean,
  58         Identifiable<TransactionIdentifier> {
  59     private static final Logger LOG = LoggerFactory.getLogger(ConfigTransactionControllerImpl.class);
  60
  61     private final ConfigTransactionLookupRegistry txLookupRegistry;
  62     private final ObjectName controllerON;
  63
  64     private final long parentVersion, currentVersion;
  65     private final HierarchicalConfigMBeanFactoriesHolder factoriesHolder;
  66     private final DependencyResolverManager dependencyResolverManager;
  67     private final TransactionStatus transactionStatus;
  68     private final MBeanServer transactionsMBeanServer;
  69     private final Map<String, Map.Entry<ModuleFactory, BundleContext>> currentlyRegisteredFactories;
  70
  71     /**
  72      * Disables ability of {@link DynamicWritableWrapper} to change attributes
  73      * during validation.
  74      */
  75     @GuardedBy("this")
  76     private final AtomicBoolean configBeanModificationDisabled = new AtomicBoolean(
  77             false);
  78     private final ReadOnlyAtomicBoolean readOnlyAtomicBoolean = new ReadOnlyAtomicBooleanImpl(
  79             configBeanModificationDisabled);
  80     private final MBeanServer configMBeanServer;
  81
  82     private final boolean blankTransaction;
  83
  84     @GuardedBy("this")
  85     private final SearchableServiceReferenceWritableRegistry writableSRRegistry;
  86
  87     public ConfigTransactionControllerImpl(ConfigTransactionLookupRegistry txLookupRegistry,
  88                                            long parentVersion, BindingContextProvider bindingContextProvider, long currentVersion,
  89                                            Map<String, Entry<ModuleFactory, BundleContext>> currentlyRegisteredFactories,
  90                                            MBeanServer transactionsMBeanServer, MBeanServer configMBeanServer,
  91                                            boolean blankTransaction, SearchableServiceReferenceWritableRegistry  writableSRRegistry) {
  92         this.txLookupRegistry = txLookupRegistry;
  93         String transactionName = txLookupRegistry.getTransactionIdentifier().getName();
  94         this.controllerON = ObjectNameUtil.createTransactionControllerON(transactionName);
  95         this.parentVersion = parentVersion;
  96         this.currentVersion = currentVersion;
  97         this.currentlyRegisteredFactories = currentlyRegisteredFactories;
  98         this.factoriesHolder = new HierarchicalConfigMBeanFactoriesHolder(currentlyRegisteredFactories);
  99         this.transactionStatus = new TransactionStatus();
 100         this.dependencyResolverManager = new DependencyResolverManager(txLookupRegistry.getTransactionIdentifier(),
 101                 transactionStatus, writableSRRegistry, bindingContextProvider, transactionsMBeanServer);
 102         this.transactionsMBeanServer = transactionsMBeanServer;
 103         this.configMBeanServer = configMBeanServer;
 104         this.blankTransaction = blankTransaction;
 105         this.writableSRRegistry = writableSRRegistry;
 106     }
 107
 108     @Override
 109     public void copyExistingModulesAndProcessFactoryDiff(Collection<ModuleInternalInfo> existingModules, List<ModuleFactory> lastListOfFactories) {
 110         // copy old configuration to this server
 111         for (ModuleInternalInfo oldConfigInfo : existingModules) {
 112             try {
 113                 copyExistingModule(oldConfigInfo);
 114             } catch (InstanceAlreadyExistsException e) {
 115                 throw new IllegalStateException("Error while copying " + oldConfigInfo, e);
 116             }
 117         }
 118         processDefaultBeans(lastListOfFactories);
 119     }
 120
 121     private synchronized void processDefaultBeans(List<ModuleFactory> lastListOfFactories) {
 122         transactionStatus.checkNotCommitStarted();
 123         transactionStatus.checkNotAborted();
 124
 125         Set<ModuleFactory> oldSet = new HashSet<>(lastListOfFactories);
 126         Set<ModuleFactory> newSet = new HashSet<>(factoriesHolder.getModuleFactories());
 127
 128         List<ModuleFactory> toBeAdded = new ArrayList<>();
 129         List<ModuleFactory> toBeRemoved = new ArrayList<>();
 130         for (ModuleFactory moduleFactory : factoriesHolder.getModuleFactories()) {
 131             if (oldSet.contains(moduleFactory) == false) {
 132                 toBeAdded.add(moduleFactory);
 133             }
 134         }
 135         for (ModuleFactory moduleFactory : lastListOfFactories) {
 136             if (newSet.contains(moduleFactory) == false) {
 137                 toBeRemoved.add(moduleFactory);
 138             }
 139         }
 140         // add default modules
 141         for (ModuleFactory moduleFactory : toBeAdded) {
 142             BundleContext bundleContext = getModuleFactoryBundleContext(moduleFactory.getImplementationName());
 143             Set<? extends Module> defaultModules = moduleFactory.getDefaultModules(dependencyResolverManager,
 144                     bundleContext);
 145             for (Module module : defaultModules) {
 146                 // ensure default module to be registered to jmx even if its module factory does not use dependencyResolverFactory
 147                 DependencyResolver dependencyResolver = dependencyResolverManager.getOrCreate(module.getIdentifier());
 148                 final ObjectName objectName;
 149                 try {
 150                     boolean defaultBean = true;
 151                     objectName = putConfigBeanToJMXAndInternalMaps(module.getIdentifier(), module, moduleFactory, null,
 152                             dependencyResolver, defaultBean, bundleContext);
 153                 } catch (InstanceAlreadyExistsException e) {
 154                     throw new IllegalStateException(e);
 155                 }
 156
 157                 // register default module as every possible service
 158                 final Set<ServiceInterfaceAnnotation> serviceInterfaceAnnotations = InterfacesHelper.getServiceInterfaceAnnotations(moduleFactory);
 159                 for (String qname : InterfacesHelper.getQNames(serviceInterfaceAnnotations)) {
 160                     try {
 161                         saveServiceReference(qname, module.getIdentifier().getInstanceName(), objectName);
 162                     } catch (InstanceNotFoundException e) {
 163                         throw new IllegalStateException("Unable to register default module instance " + module + " as a service of " + qname, e);
 164                     }
 165                 }
 166             }
 167         }
 168
 169         // remove modules belonging to removed factories
 170         for (ModuleFactory removedFactory : toBeRemoved) {
 171             List<ModuleIdentifier> modulesOfRemovedFactory = dependencyResolverManager.findAllByFactory(removedFactory);
 172             for (ModuleIdentifier name : modulesOfRemovedFactory) {
 173                 // remove service refs
 174                 final ModuleFactory moduleFactory = dependencyResolverManager.findModuleInternalTransactionalInfo(name).getModuleFactory();
 175                 final Set<ServiceInterfaceAnnotation> serviceInterfaceAnnotations = InterfacesHelper.getServiceInterfaceAnnotations(moduleFactory);
 176                 for (String qname : InterfacesHelper.getQNames(serviceInterfaceAnnotations)) {
 177                     try {
 178                         removeServiceReference(qname, name.getInstanceName());
 179                     } catch (InstanceNotFoundException e) {
 180                         throw new IllegalStateException("Unable to UNregister default module instance " + name + " as a service of " + qname, e);
 181                     }
 182                 }
 183
 184                 // close module
 185                 destroyModule(name);
 186             }
 187         }
 188     }
 189
 190
 191     private synchronized void copyExistingModule(ModuleInternalInfo oldConfigBeanInfo)
 192             throws InstanceAlreadyExistsException {
 193
 194         transactionStatus.checkNotCommitStarted();
 195         transactionStatus.checkNotAborted();
 196         ModuleIdentifier moduleIdentifier = oldConfigBeanInfo.getIdentifier();
 197         dependencyResolverManager.assertNotExists(moduleIdentifier);
 198
 199         ModuleFactory moduleFactory;
 200         BundleContext bc;
 201         try {
 202             moduleFactory = factoriesHolder.findByModuleName(moduleIdentifier.getFactoryName());
 203             bc = getModuleFactoryBundleContext(moduleFactory.getImplementationName());
 204         } catch (ModuleFactoryNotFoundException e) {
 205             throw new IllegalStateException(e);
 206         }
 207
 208         Module module;
 209         DependencyResolver dependencyResolver = dependencyResolverManager.getOrCreate(moduleIdentifier);
 210         try {
 211
 212             module = moduleFactory.createModule(
 213                     moduleIdentifier.getInstanceName(), dependencyResolver,
 214                     oldConfigBeanInfo.getReadableModule(), bc);
 215         } catch (Exception e) {
 216             throw new IllegalStateException(format(
 217                     "Error while copying old configuration from %s to %s",
 218                     oldConfigBeanInfo, moduleFactory), e);
 219         }
 220         putConfigBeanToJMXAndInternalMaps(moduleIdentifier, module, moduleFactory, oldConfigBeanInfo, dependencyResolver,
 221                 oldConfigBeanInfo.isDefaultBean(), bc);
 222     }
 223
 224     @Override
 225     public synchronized ObjectName createModule(String factoryName, String instanceName)
 226             throws InstanceAlreadyExistsException {
 227
 228         transactionStatus.checkNotCommitStarted();
 229         transactionStatus.checkNotAborted();
 230         ModuleIdentifier moduleIdentifier = new ModuleIdentifier(factoryName, instanceName);
 231         dependencyResolverManager.assertNotExists(moduleIdentifier);
 232
 233         // find factory
 234         ModuleFactory moduleFactory = factoriesHolder.findByModuleName(factoryName);
 235
 236         DependencyResolver dependencyResolver = dependencyResolverManager.getOrCreate(moduleIdentifier);
 237         BundleContext bundleContext = getModuleFactoryBundleContext(moduleFactory.getImplementationName());
 238         Module module = moduleFactory.createModule(instanceName, dependencyResolver,
 239                 bundleContext);
 240         boolean defaultBean = false;
 241         return putConfigBeanToJMXAndInternalMaps(moduleIdentifier, module,
 242                 moduleFactory, null, dependencyResolver, defaultBean, bundleContext);
 243     }
 244
 245     private synchronized ObjectName putConfigBeanToJMXAndInternalMaps(
 246             ModuleIdentifier moduleIdentifier, Module module,
 247             ModuleFactory moduleFactory,
 248             @Nullable ModuleInternalInfo maybeOldConfigBeanInfo, DependencyResolver dependencyResolver,
 249             boolean isDefaultBean, BundleContext bundleContext)
 250             throws InstanceAlreadyExistsException {
 251
 252         LOG.debug("Adding module {} to transaction {}", moduleIdentifier, this);
 253         if (moduleIdentifier.equals(module.getIdentifier()) == false) {
 254             throw new IllegalStateException("Incorrect name reported by module. Expected "
 255                     + moduleIdentifier + ", got " + module.getIdentifier());
 256         }
 257         if (dependencyResolver.getIdentifier().equals(moduleIdentifier) == false) {
 258             throw new IllegalStateException("Incorrect name reported by dependency resolver. Expected "
 259                     + moduleIdentifier + ", got " + dependencyResolver.getIdentifier());
 260         }
 261         DynamicMBean writableDynamicWrapper = new DynamicWritableWrapper(
 262                 module, moduleIdentifier, getTransactionIdentifier(),
 263                 readOnlyAtomicBoolean, transactionsMBeanServer,
 264                 configMBeanServer);
 265
 266         ObjectName writableON = ObjectNameUtil.createTransactionModuleON(
 267                 getTransactionIdentifier().getName(), moduleIdentifier);
 268         // put wrapper to jmx
 269         TransactionModuleJMXRegistration transactionModuleJMXRegistration = getTxModuleJMXRegistrator()
 270                 .registerMBean(writableDynamicWrapper, writableON);
 271
 272         dependencyResolverManager.put(
 273                 moduleIdentifier, module, moduleFactory,
 274                 maybeOldConfigBeanInfo, transactionModuleJMXRegistration, isDefaultBean, bundleContext);
 275         return writableON;
 276     }
 277
 278     @Override
 279     public synchronized void destroyModule(ObjectName objectName) throws InstanceNotFoundException {
 280         checkTransactionName(objectName);
 281         ObjectNameUtil.checkDomain(objectName);
 282         ModuleIdentifier moduleIdentifier = ObjectNameUtil.fromON(objectName,
 283                 ObjectNameUtil.TYPE_MODULE);
 284         destroyModule(moduleIdentifier);
 285     }
 286
 287     private void checkTransactionName(ObjectName objectName) {
 288         String foundTransactionName = ObjectNameUtil
 289                 .getTransactionName(objectName);
 290         if (getTransactionIdentifier().getName().equals(foundTransactionName) == false) {
 291             throw new IllegalArgumentException("Wrong transaction name "
 292                     + objectName);
 293         }
 294     }
 295
 296     private synchronized void destroyModule(ModuleIdentifier moduleIdentifier) {
 297         LOG.debug("Destroying module {} in transaction {}", moduleIdentifier, this);
 298         transactionStatus.checkNotAborted();
 299
 300         ModuleInternalTransactionalInfo found = dependencyResolverManager.findModuleInternalTransactionalInfo(moduleIdentifier);
 301         if (blankTransaction == false &&
 302                 found.isDefaultBean()) {
 303             LOG.warn("Warning: removing default bean. This will be forbidden in next version of config-subsystem");
 304         }
 305         // first remove refNames, it checks for objectname existence
 306
 307         try {
 308             writableSRRegistry.removeServiceReferences(
 309                     ObjectNameUtil.createTransactionModuleON(getTransactionName(), moduleIdentifier));
 310         } catch (InstanceNotFoundException e) {
 311             LOG.error("Possible code error: cannot find {} in {}", moduleIdentifier, writableSRRegistry);
 312             throw new IllegalStateException("Possible code error: cannot find " + moduleIdentifier, e);
 313         }
 314
 315         ModuleInternalTransactionalInfo removedTInfo = dependencyResolverManager.destroyModule(moduleIdentifier);
 316         // remove from jmx
 317         removedTInfo.getTransactionModuleJMXRegistration().close();
 318     }
 319
 320     @Override
 321     public long getParentVersion() {
 322         return parentVersion;
 323     }
 324
 325     @Override
 326     public long getVersion() {
 327         return currentVersion;
 328     }
 329
 330     @Override
 331     public synchronized void validateConfig() throws ValidationException {
 332         if (configBeanModificationDisabled.get()) {
 333             throw new IllegalStateException("Cannot start validation");
 334         }
 335         configBeanModificationDisabled.set(true);
 336         try {
 337             validateNoLocks();
 338         } finally {
 339             configBeanModificationDisabled.set(false);
 340         }
 341     }
 342
 343     private void validateNoLocks() throws ValidationException {
 344         transactionStatus.checkNotAborted();
 345         LOG.trace("Validating transaction {}", getTransactionIdentifier());
 346         // call validate()
 347         List<ValidationException> collectedExceptions = new ArrayList<>();
 348         for (Entry<ModuleIdentifier, Module> entry : dependencyResolverManager
 349                 .getAllModules().entrySet()) {
 350             ModuleIdentifier name = entry.getKey();
 351             Module module = entry.getValue();
 352             try {
 353                 module.validate();
 354             } catch (Exception e) {
 355                 LOG.warn("Validation exception in {}", getTransactionName(),
 356                         e);
 357                 collectedExceptions.add(ValidationException
 358                         .createForSingleException(name, e));
 359             }
 360         }
 361         if (!collectedExceptions.isEmpty()) {
 362             throw ValidationException
 363                     .createFromCollectedValidationExceptions(collectedExceptions);
 364         }
 365         LOG.trace("Validated transaction {}", getTransactionIdentifier());
 366     }
 367
 368     /**
 369      * If this method passes validation, it will grab
 370      * {@link TransactionStatus#secondPhaseCommitStarted} lock. This lock will
 371      * prevent calling @{link #validateBeforeCommitAndLockTransaction},
 372      * effectively only allowing to call {@link #secondPhaseCommit} after
 373      * successful return of this method.
 374      */
 375     @Override
 376     public synchronized CommitInfo validateBeforeCommitAndLockTransaction()
 377             throws ValidationException {
 378         transactionStatus.checkNotAborted();
 379         transactionStatus.checkNotCommitStarted();
 380         configBeanModificationDisabled.set(true);
 381         try {
 382             validateNoLocks();
 383         } catch (ValidationException e) {
 384             LOG.trace("Commit failed on validation");
 385             configBeanModificationDisabled.set(false); // recoverable error
 386             throw e;
 387         }
 388         // errors in this state are not recoverable. modules are not mutable
 389         // anymore.
 390         transactionStatus.setSecondPhaseCommitStarted();
 391         return dependencyResolverManager.toCommitInfo();
 392     }
 393
 394     /**
 395      * {@inheritDoc}
 396      */
 397     @Override
 398     public synchronized List<ModuleIdentifier> secondPhaseCommit() {
 399         transactionStatus.checkNotAborted();
 400         transactionStatus.checkCommitStarted();
 401         if (configBeanModificationDisabled.get() == false) {
 402             throw new IllegalStateException(
 403                     "Internal error - validateBeforeCommitAndLockTransaction should be called "
 404                             + "to obtain a lock");
 405         }
 406
 407         LOG.trace("Committing transaction {}", getTransactionIdentifier());
 408
 409         Map<ModuleIdentifier, Module> allModules = dependencyResolverManager.getAllModules();
 410
 411         // call getInstance() on all Modules from top to bottom (from source to target of the dependency relation)
 412         // The source of a dependency closes itself and calls getInstance recursively on the dependencies (in case of reconfiguration)
 413         // This makes close() calls from top to bottom while createInstance() calls are performed bottom to top
 414         List<ModuleIdentifier> sortedModuleIdentifiers = Lists.reverse(dependencyResolverManager.getSortedModuleIdentifiers());
 415         for (ModuleIdentifier moduleIdentifier : sortedModuleIdentifiers) {
 416             Module module = allModules.get(moduleIdentifier);
 417
 418             try {
 419                 LOG.debug("About to commit {} in transaction {}",
 420                         moduleIdentifier, getTransactionIdentifier());
 421                 AutoCloseable instance = module.getInstance();
 422                 checkNotNull(instance, "Instance is null:{} in transaction {}", moduleIdentifier, getTransactionIdentifier());
 423             } catch (Exception e) {
 424                 LOG.error("Commit failed on {} in transaction {}", moduleIdentifier,
 425                         getTransactionIdentifier(), e);
 426                 internalAbort();
 427                 throw new IllegalStateException(
 428                         format("Error - getInstance() failed for %s in transaction %s",
 429                                 moduleIdentifier, getTransactionIdentifier()), e);
 430             }
 431         }
 432
 433         LOG.trace("Committed configuration {}", getTransactionIdentifier());
 434         transactionStatus.setCommitted();
 435
 436         return sortedModuleIdentifiers;
 437     }
 438
 439     @Override
 440     public synchronized void abortConfig() {
 441         transactionStatus.checkNotCommitStarted();
 442         transactionStatus.checkNotAborted();
 443         internalAbort();
 444     }
 445
 446     private void internalAbort() {
 447         LOG.trace("Aborting {}", this);
 448         transactionStatus.setAborted();
 449         close();
 450     }
 451
 452     @Override
 453     public void close() {
 454         dependencyResolverManager.close();
 455         txLookupRegistry.close();
 456     }
 457
 458     @Override
 459     public ObjectName getControllerObjectName() {
 460         return controllerON;
 461     }
 462
 463     @Override
 464     public String getTransactionName() {
 465         return getTransactionIdentifier().getName();
 466     }
 467
 468     /**
 469      * {@inheritDoc}
 470      */
 471     @Override
 472     public Set<ObjectName> lookupConfigBeans() {
 473         return txLookupRegistry.lookupConfigBeans();
 474     }
 475
 476     /**
 477      * {@inheritDoc}
 478      */
 479     @Override
 480     public Set<ObjectName> lookupConfigBeans(String moduleName) {
 481         return txLookupRegistry.lookupConfigBeans(moduleName);
 482     }
 483
 484     /**
 485      * {@inheritDoc}
 486      */
 487     @Override
 488     public ObjectName lookupConfigBean(String moduleName, String instanceName)
 489             throws InstanceNotFoundException {
 490         return txLookupRegistry.lookupConfigBean(moduleName, instanceName);
 491     }
 492
 493     /**
 494      * {@inheritDoc}
 495      */
 496     @Override
 497     public Set<ObjectName> lookupConfigBeans(String moduleName, String instanceName) {
 498         return txLookupRegistry.lookupConfigBeans(moduleName, instanceName);
 499     }
 500
 501     /**
 502      * {@inheritDoc}
 503      */
 504     @Override
 505     public void checkConfigBeanExists(ObjectName objectName) throws InstanceNotFoundException {
 506         txLookupRegistry.checkConfigBeanExists(objectName);
 507     }
 508
 509
 510     /**
 511      * {@inheritDoc}
 512      */
 513     @Override
 514     public Set<ObjectName> lookupRuntimeBeans() {
 515         return txLookupRegistry.lookupRuntimeBeans();
 516     }
 517
 518     /**
 519      * {@inheritDoc}
 520      */
 521     @Override
 522     public Set<ObjectName> lookupRuntimeBeans(String moduleName,
 523                                               String instanceName) {
 524         return txLookupRegistry.lookupRuntimeBeans(moduleName, instanceName);
 525     }
 526
 527     // --
 528
 529     /**
 530      * {@inheritDoc}
 531      */
 532     @Override
 533     public Set<String> getAvailableModuleNames() {
 534         return factoriesHolder.getModuleNames();
 535     }
 536
 537     @Override
 538     public boolean isClosed() {
 539         return transactionStatus.isAbortedOrCommitted();
 540     }
 541
 542     @Override
 543     public String toString() {
 544         StringBuilder sb = new StringBuilder();
 545         sb.append("transactionName=");
 546         sb.append(getTransactionName());
 547         return sb.toString();
 548     }
 549
 550     // @VisibleForTesting
 551
 552     TransactionModuleJMXRegistrator getTxModuleJMXRegistrator() {
 553         return txLookupRegistry.getTxModuleJMXRegistrator();
 554     }
 555
 556     public TransactionIdentifier getName() {
 557         return getTransactionIdentifier();
 558     }
 559
 560     @Override
 561     public List<ModuleFactory> getCurrentlyRegisteredFactories() {
 562         return new ArrayList<>(factoriesHolder.getModuleFactories());
 563     }
 564
 565     @Override
 566     public TransactionIdentifier getIdentifier() {
 567         return getTransactionIdentifier();
 568     }
 569
 570     @Override
 571     public BundleContext getModuleFactoryBundleContext(String factoryName) {
 572         Map.Entry<ModuleFactory, BundleContext> factoryBundleContextEntry = this.currentlyRegisteredFactories.get(factoryName);
 573         if (factoryBundleContextEntry == null || factoryBundleContextEntry.getValue() == null) {
 574             throw new NullPointerException("Bundle context of " + factoryName + " ModuleFactory not found.");
 575         }
 576         return factoryBundleContextEntry.getValue();
 577     }
 578
 579     // service reference functionality:
 580
 581
 582     @Override
 583     public synchronized ObjectName lookupConfigBeanByServiceInterfaceName(String serviceInterfaceQName, String refName) {
 584         return writableSRRegistry.lookupConfigBeanByServiceInterfaceName(serviceInterfaceQName, refName);
 585     }
 586
 587     @Override
 588     public synchronized Map<String, Map<String, ObjectName>> getServiceMapping() {
 589         return writableSRRegistry.getServiceMapping();
 590     }
 591
 592     @Override
 593     public synchronized Map<String, ObjectName> lookupServiceReferencesByServiceInterfaceName(String serviceInterfaceQName) {
 594         return writableSRRegistry.lookupServiceReferencesByServiceInterfaceName(serviceInterfaceQName);
 595     }
 596
 597     @Override
 598     public synchronized Set<String> lookupServiceInterfaceNames(ObjectName objectName) throws InstanceNotFoundException {
 599         return writableSRRegistry.lookupServiceInterfaceNames(objectName);
 600     }
 601
 602     @Override
 603     public synchronized String getServiceInterfaceName(String namespace, String localName) {
 604         return writableSRRegistry.getServiceInterfaceName(namespace, localName);
 605     }
 606
 607     @Override
 608     public synchronized ObjectName saveServiceReference(String serviceInterfaceName, String refName, ObjectName moduleON) throws InstanceNotFoundException {
 609         return writableSRRegistry.saveServiceReference(serviceInterfaceName, refName, moduleON);
 610     }
 611
 612     @Override
 613     public synchronized void removeServiceReference(String serviceInterfaceName, String refName) throws InstanceNotFoundException {
 614         writableSRRegistry.removeServiceReference(serviceInterfaceName, refName);
 615     }
 616
 617     @Override
 618     public synchronized void removeAllServiceReferences() {
 619         writableSRRegistry.removeAllServiceReferences();
 620     }
 621
 622     @Override
 623     public boolean removeServiceReferences(ObjectName objectName) throws InstanceNotFoundException {
 624         return writableSRRegistry.removeServiceReferences(objectName);
 625     }
 626
 627     @Override
 628     public SearchableServiceReferenceWritableRegistry  getWritableRegistry() {
 629         return writableSRRegistry;
 630     }
 631
 632     @Override
 633     public TransactionIdentifier getTransactionIdentifier() {
 634         return txLookupRegistry.getTransactionIdentifier();
 635     }
 636
 637     @Override
 638     public Set<String> getAvailableModuleFactoryQNames() {
 639         return txLookupRegistry.getAvailableModuleFactoryQNames();
 640     }
 641
 642     @Override
 643     public void checkServiceReferenceExists(ObjectName objectName) throws InstanceNotFoundException {
 644         writableSRRegistry.checkServiceReferenceExists(objectName);
 645     }
 646
 647     @Override
 648     public ObjectName getServiceReference(String serviceInterfaceQName, String refName) throws InstanceNotFoundException {
 649         return writableSRRegistry.getServiceReference(serviceInterfaceQName, refName);
 650     }
 651 }