| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.sling.serviceusermapping.impl; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Dictionary; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Hashtable; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.SortedMap; |
| import java.util.SortedSet; |
| import java.util.TreeMap; |
| import java.util.TreeSet; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.apache.sling.serviceusermapping.Mapping; |
| import org.apache.sling.serviceusermapping.ServicePrincipalsValidator; |
| import org.apache.sling.serviceusermapping.ServiceUserMapped; |
| import org.apache.sling.serviceusermapping.ServiceUserMapper; |
| import org.apache.sling.serviceusermapping.ServiceUserValidator; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Modified; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.osgi.service.component.annotations.ReferencePolicy; |
| import org.osgi.service.metatype.annotations.AttributeDefinition; |
| import org.osgi.service.metatype.annotations.Designate; |
| import org.osgi.service.metatype.annotations.ObjectClassDefinition; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Designate(ocd = ServiceUserMapperImpl.Config.class) |
| @Component(service = {ServiceUserMapper.class, ServiceUserMapperImpl.class}) |
| public class ServiceUserMapperImpl implements ServiceUserMapper { |
| |
| @ObjectClassDefinition(name = "Apache Sling Service User Mapper Service", |
| description = "Configuration for the service mapping service names to names of users.") |
| public @interface Config { |
| |
| @AttributeDefinition(name = "Service Mappings", |
| description = "Provides mappings from service name to user names. " |
| + "Each entry is of the form 'bundleId [ \":\" subServiceName ] \"=\" userName' | \"[\" principalNames \"]\" " |
| + "where bundleId and subServiceName identify the service and userName " |
| + "defines the name of the user to provide to the service; alternative the the mapping" |
| + "can define a comma separated set of principalNames instead of the userName. Invalid entries are logged and ignored.") |
| String[] user_mapping() default {}; |
| |
| @AttributeDefinition(name = "Default User", |
| description = "The name of the user to use as the default if no service mapping" |
| + " applies. If this property is missing or empty no default user is defined.") |
| String user_default(); |
| |
| @AttributeDefinition(name = "Default Mapping", |
| description = "If enabled and no mapping for a requested service user exists and no " + |
| " default user is defined, a " + |
| "default mapping is applied which uses the service user \"serviceuser--\" + bundleId + [\"--\" + subServiceName]") |
| boolean user_enable_default_mapping() default true; |
| |
| @AttributeDefinition(name = "Require Validation", |
| description = "If true, a service user is only valid if there are present validators that accept it.") |
| boolean require_validation() default false; |
| |
| @AttributeDefinition(name = "Required User Validators", |
| description = "A list of required user validators ids. If any configured validator in this list is not present " + |
| "and \"require validation\" is enabled no userid and no principal name will be valid.") |
| String[] required_user_validators() default {}; |
| |
| @AttributeDefinition(name = "Required Principal Validators", |
| description = "A list of required principal validators ids. If any configured validator in this list is not present " + |
| "and \"require validation\" is enabled no userid and no principal name will be valid.") |
| String[] required_principal_validators() default {}; |
| } |
| |
| /** default log */ |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private final BundleContext bundleContext; |
| |
| private final ExecutorService executorService; |
| |
| private final List<ServiceUserValidator> userValidators = new CopyOnWriteArrayList<>(); |
| |
| private final List<ServicePrincipalsValidator> principalsValidators = new CopyOnWriteArrayList<>(); |
| |
| private final AtomicReference<ServiceRegistration> defaultRegistration = new AtomicReference<>(); |
| |
| private final Map<Long, MappingConfigAmendment> amendments = new HashMap<>(); |
| |
| private volatile Mapping[] globalServiceUserMappings; |
| |
| private volatile String defaultUser; |
| |
| private volatile boolean useDefaultMapping; |
| |
| private volatile Mapping[] activeMappings = new Mapping[0]; |
| |
| private volatile SortedMap<Mapping, Registration> activeRegistrations = new TreeMap<>(); |
| |
| private volatile boolean requireValidation = false; |
| |
| private final Set<String> requiredUserValidators = new HashSet<>(); |
| |
| private final Set<String> requiredPrincipalValidators = new HashSet<>(); |
| |
| private final List<String> presentUserValidators = new CopyOnWriteArrayList<>(); |
| |
| private final List<String> presentPrincipalValidators = new CopyOnWriteArrayList<>(); |
| |
| @Activate |
| public ServiceUserMapperImpl(final BundleContext bundleContext, final Config config) { |
| this(bundleContext, config, Executors.newSingleThreadExecutor()); |
| } |
| |
| public ServiceUserMapperImpl(final BundleContext bundleContext, final Config config, |
| final ExecutorService executor) { |
| this.bundleContext = bundleContext; |
| this.executorService = executor; |
| this.configure(config); |
| } |
| |
| @Modified |
| synchronized void configure(final Config config) { |
| final String[] props = config.user_mapping(); |
| |
| if ( props != null ) { |
| final ArrayList<Mapping> mappings = new ArrayList<>(props.length); |
| for (final String prop : props) { |
| if (prop != null && prop.trim().length() > 0 ) { |
| try { |
| final Mapping mapping = new Mapping(prop.trim()); |
| mappings.add(mapping); |
| } catch (final IllegalArgumentException iae) { |
| log.error("configure: Ignoring '{}': {}", prop, iae.getMessage()); |
| } |
| } |
| } |
| |
| this.globalServiceUserMappings = mappings.toArray(new Mapping[mappings.size()]); |
| } else { |
| this.globalServiceUserMappings = new Mapping[0]; |
| } |
| this.defaultUser = config.user_default(); |
| if (this.defaultUser != null && this.defaultUser.isEmpty()) { |
| this.defaultUser = null; |
| } |
| this.useDefaultMapping = config.user_enable_default_mapping(); |
| this.requireValidation = config.require_validation(); |
| |
| if (config.required_user_validators() != null) { |
| requiredUserValidators.addAll(Arrays.asList(config.required_user_validators())); |
| } |
| |
| if (config.required_principal_validators() != null) { |
| requiredPrincipalValidators.addAll(Arrays.asList(config.required_principal_validators())); |
| } |
| |
| RegistrationSet registrationSet = this.updateMappings(); |
| |
| this.executeServiceRegistrationsAsync(registrationSet); |
| } |
| |
| @Deactivate |
| synchronized void deactivate() { |
| // this call does not unregister the mappings, but they should be unbound |
| // through the unbind methods anyway |
| updateServiceRegistrations(new Mapping[0]); |
| executorService.shutdown(); |
| } |
| |
| void restartAllActiveServiceUserMappedServices() { |
| RegistrationSet registrationSet = new RegistrationSet(); |
| registrationSet.removed = activeRegistrations.values(); |
| registrationSet.added = activeRegistrations.values(); |
| executeServiceRegistrationsAsync(registrationSet); |
| } |
| |
| /** |
| * bind the serviceUserValidator |
| * @param serviceUserValidator |
| */ |
| @Reference(cardinality=ReferenceCardinality.MULTIPLE, policy= ReferencePolicy.DYNAMIC) |
| protected synchronized void bindServiceUserValidator(final ServiceUserValidator serviceUserValidator, final Map<String, ?> props) { |
| userValidators.add(serviceUserValidator); |
| Object id = props.get(VALIDATOR_ID); |
| if (id instanceof String) { |
| presentUserValidators.add((String) id); |
| } |
| |
| if (!requireValidation || !getPrincipalsValidators().isEmpty()) { |
| restartAllActiveServiceUserMappedServices(); |
| } |
| } |
| |
| /** |
| * unbind the serviceUserValidator |
| * @param serviceUserValidator |
| */ |
| protected synchronized void unbindServiceUserValidator(final ServiceUserValidator serviceUserValidator, final Map<String, ?> props) { |
| userValidators.remove(serviceUserValidator); |
| Object id = props.get(VALIDATOR_ID); |
| if (id instanceof String) { |
| presentUserValidators.remove(id); |
| } |
| |
| restartAllActiveServiceUserMappedServices(); |
| } |
| |
| /** |
| * bind the servicePrincipalsValidator |
| * @param servicePrincipalsValidator |
| */ |
| @Reference(cardinality=ReferenceCardinality.MULTIPLE, policy= ReferencePolicy.DYNAMIC) |
| protected synchronized void bindServicePrincipalsValidator(final ServicePrincipalsValidator servicePrincipalsValidator, final Map<String, ?> props) { |
| principalsValidators.add(servicePrincipalsValidator); |
| Object id = props.get(VALIDATOR_ID); |
| if (id instanceof String) { |
| presentPrincipalValidators.add((String) id); |
| } |
| |
| if (!requireValidation || !getUserValidators().isEmpty()) { |
| restartAllActiveServiceUserMappedServices(); |
| } |
| } |
| |
| /** |
| * unbind the servicePrincipalsValidator |
| * @param servicePrincipalsValidator |
| */ |
| protected synchronized void unbindServicePrincipalsValidator(final ServicePrincipalsValidator servicePrincipalsValidator, final Map<String, ?> props) { |
| principalsValidators.remove(servicePrincipalsValidator); |
| Object id = props.get(VALIDATOR_ID); |
| if (id instanceof String) { |
| presentPrincipalValidators.remove(id); |
| } |
| restartAllActiveServiceUserMappedServices(); |
| } |
| |
| /** |
| * @see org.apache.sling.serviceusermapping.ServiceUserMapper#getServiceUserID(org.osgi.framework.Bundle, java.lang.String) |
| */ |
| @Override |
| public String getServiceUserID(final Bundle bundle, final String subServiceName) { |
| final String serviceName = getServiceName(bundle); |
| final String userId = internalGetUserId(serviceName, subServiceName); |
| final boolean valid = isValidUser(userId, serviceName, subServiceName, false); |
| final String result = valid ? userId : null; |
| log.debug( |
| "getServiceUserID(bundle {}, subServiceName {}) returns [{}] (raw userId={}, valid={})", |
| new Object[] { bundle, subServiceName, result, userId, valid }); |
| return result; |
| } |
| |
| String getServiceUserIDInternal(final Bundle bundle, final String subServiceName) { |
| final String serviceName = getServiceName(bundle); |
| final String userId = internalGetUserId(serviceName, subServiceName); |
| final boolean valid = isValidUser(userId, serviceName, subServiceName, requireValidation); |
| final String result = valid ? userId : null; |
| log.debug( |
| "getServiceUserID(bundle {}, subServiceName {}) returns [{}] (raw userId={}, valid={})", |
| new Object[] { bundle, subServiceName, result, userId, valid }); |
| return result; |
| } |
| |
| /** |
| * @see org.apache.sling.serviceusermapping.ServiceUserMapper#getServicePrincipalNames(org.osgi.framework.Bundle, java.lang.String) |
| */ |
| @Override |
| public Iterable<String> getServicePrincipalNames(Bundle bundle, String subServiceName) { |
| final String serviceName = getServiceName(bundle); |
| final Iterable<String> names = internalGetPrincipalNames(serviceName, subServiceName); |
| final boolean valid = areValidPrincipals(names, serviceName, subServiceName, false); |
| final Iterable<String> result = valid ? names : null; |
| log.debug( |
| "getServicePrincipalNames(bundle {}, subServiceName {}) returns [{}] (raw principalNames={}, valid={})", |
| new Object[] { bundle, subServiceName, result, names, valid}); |
| return result; |
| } |
| |
| Iterable<String> getServicePrincipalNamesInternal(Bundle bundle, String subServiceName) { |
| final String serviceName = getServiceName(bundle); |
| final Iterable<String> names = internalGetPrincipalNames(serviceName, subServiceName); |
| final boolean valid = areValidPrincipals(names, serviceName, subServiceName, requireValidation); |
| final Iterable<String> result = valid ? names : null; |
| log.debug( |
| "getServicePrincipalNames(bundle {}, subServiceName {}) returns [{}] (raw principalNames={}, valid={})", |
| new Object[] { bundle, subServiceName, result, names, valid}); |
| return result; |
| } |
| |
| @Reference(cardinality=ReferenceCardinality.MULTIPLE,policy=ReferencePolicy.DYNAMIC,updated="updateAmendment") |
| protected synchronized void bindAmendment(final MappingConfigAmendment amendment, final Map<String, Object> props) { |
| final Long key = (Long) props.get(Constants.SERVICE_ID); |
| RegistrationSet registrationSet = null; |
| amendments.put(key, amendment); |
| registrationSet = this.updateMappings(); |
| executeServiceRegistrationsAsync(registrationSet); |
| } |
| |
| protected synchronized void unbindAmendment(final MappingConfigAmendment amendment, final Map<String, Object> props) { |
| final Long key = (Long) props.get(Constants.SERVICE_ID); |
| RegistrationSet registrationSet = null; |
| if ( amendments.remove(key) != null ) { |
| registrationSet = this.updateMappings(); |
| } |
| executeServiceRegistrationsAsync(registrationSet); |
| } |
| |
| protected void updateAmendment(final MappingConfigAmendment amendment, final Map<String, Object> props) { |
| this.bindAmendment(amendment, props); |
| } |
| |
| protected RegistrationSet updateMappings() { |
| final List<MappingConfigAmendment> sortedMappings = new ArrayList<>(); |
| for(final MappingConfigAmendment amendment : this.amendments.values() ) { |
| sortedMappings.add(amendment); |
| } |
| Collections.sort(sortedMappings); |
| |
| final List<Mapping> mappings = new ArrayList<>(); |
| for(final Mapping m : this.globalServiceUserMappings) { |
| mappings.add(m); |
| } |
| for(final MappingConfigAmendment mca : sortedMappings) { |
| for(final Mapping m : mca.getServiceUserMappings()) { |
| mappings.add(m); |
| } |
| } |
| |
| activeMappings = mappings.toArray(new Mapping[mappings.size()]); |
| log.debug("Active mappings updated: {} mappings active", mappings.size()); |
| |
| return updateServiceRegistrations(activeMappings); |
| |
| } |
| |
| |
| RegistrationSet updateServiceRegistrations(final Mapping[] newMappings) { |
| |
| RegistrationSet result = new RegistrationSet(); |
| |
| final SortedSet<Mapping> orderedNewMappings = new TreeSet<>(Arrays.asList(newMappings)); |
| final SortedMap<Mapping, Registration> newRegistrations = new TreeMap<>(); |
| |
| // keep those that are still mapped |
| for (Map.Entry<Mapping, Registration> registrationEntry: activeRegistrations.entrySet()) { |
| boolean keepEntry = true; |
| |
| if (!orderedNewMappings.contains(registrationEntry.getKey())) { |
| Registration registration = registrationEntry.getValue(); |
| |
| result.removed.add(registration); |
| keepEntry = false; |
| } |
| |
| if (keepEntry) { |
| newRegistrations.put(registrationEntry.getKey(), registrationEntry.getValue()); |
| } |
| } |
| |
| // add those that are new |
| for (final Mapping mapping: orderedNewMappings) { |
| if (!newRegistrations.containsKey(mapping)) { |
| Registration registration = new Registration(mapping); |
| newRegistrations.put(mapping, registration); |
| result.added.add(registration); |
| } |
| } |
| |
| activeRegistrations = newRegistrations; |
| |
| return result; |
| } |
| |
| private void executeServiceRegistrationsAsync(final RegistrationSet registrationSet) { |
| executorService.submit(() -> executeServiceRegistrations(registrationSet)); |
| } |
| |
| |
| private void executeServiceRegistrations(final RegistrationSet registrationSet) { |
| |
| final ServiceRegistration reg = defaultRegistration.getAndSet(null); |
| if (reg != null) { |
| reg.unregister(); |
| } |
| |
| for (final Registration registration : registrationSet.removed) { |
| |
| ServiceRegistration serviceRegistration = registration.setService(null); |
| |
| if (serviceRegistration != null) { |
| try { |
| serviceRegistration.unregister(); |
| log.debug("Unregistered ServiceUserMapped {}", registration.mapping); |
| } catch (final IllegalStateException e) { |
| // this can happen on shutdown, therefore we just ignore it and don't log |
| } |
| } |
| } |
| |
| for (final Registration registration : registrationSet.added) { |
| Mapping mapping = registration.mapping; |
| final Dictionary<String, Object> properties = new Hashtable<>(); |
| if (mapping.getSubServiceName() != null) { |
| properties.put(ServiceUserMapped.SUBSERVICENAME, mapping.getSubServiceName()); |
| } |
| |
| properties.put(Mapping.SERVICENAME, mapping.getServiceName()); |
| final ServiceRegistration serviceRegistration = bundleContext.registerService( |
| ServiceUserMappedImpl.SERVICEUSERMAPPED, |
| new ServiceUserMappedImpl(), properties); |
| |
| ServiceRegistration oldServiceRegistration = registration.setService(serviceRegistration); |
| log.debug("Activated ServiceUserMapped {}", registration.mapping); |
| |
| if (oldServiceRegistration != null) { |
| try { |
| oldServiceRegistration.unregister(); |
| } catch (final IllegalStateException e) { |
| // this can happen on shutdown, therefore we just ignore it and don't log |
| } |
| } |
| } |
| |
| if (this.useDefaultMapping || defaultUser != null) { |
| Dictionary<String, Object> properties = new Hashtable<>(); |
| properties.put(Mapping.SERVICENAME, getServiceName(bundleContext.getBundle())); |
| final ServiceRegistration serviceRegistration = bundleContext |
| .registerService(ServiceUserMappedImpl.SERVICEUSERMAPPED, |
| new ServiceUserMappedImpl(), properties); |
| this.defaultRegistration.set(serviceRegistration); |
| } |
| } |
| |
| private String internalGetUserId(final String serviceName, final String subServiceName) { |
| log.debug( |
| "internalGetUserId: {} active mappings, looking for mapping for {}/{}", |
| new Object[] { this.activeMappings.length, serviceName, subServiceName }); |
| |
| for (final Mapping mapping : this.activeMappings) { |
| final String userId = mapping.map(serviceName, subServiceName); |
| if (userId != null) { |
| log.debug("Got userId [{}] from {}/{}", new Object[] { userId, serviceName, subServiceName }); |
| return userId; |
| } |
| } |
| |
| // second round without serviceInfo |
| log.debug( |
| "internalGetUserId: {} active mappings, looking for mapping for {}/<no subServiceName>", |
| this.activeMappings.length, serviceName); |
| |
| for (Mapping mapping : this.activeMappings) { |
| final String userId = mapping.map(serviceName, null); |
| if (userId != null) { |
| log.debug("Got userId [{}] from {}/<no subServiceName>", userId, serviceName); |
| return userId; |
| } |
| } |
| |
| // use default mapping if configured and no default user |
| if (this.useDefaultMapping && this.defaultUser == null) { |
| final String userName = "serviceuser--" + serviceName + (subServiceName == null ? "" : "--" + subServiceName); |
| log.debug("internalGetUserId: no mapping found, using default mapping [{}]", userName); |
| return userName; |
| |
| } |
| log.debug("internalGetUserId: no mapping found, fallback to default user [{}]", this.defaultUser); |
| return this.defaultUser; |
| } |
| |
| boolean isValidUser(final String userId, final String serviceName, final String subServiceName, boolean require) { |
| if (userId == null) { |
| log.debug("isValidUser: userId is null -> invalid"); |
| return false; |
| } |
| List<ServiceUserValidator> validators = getUserValidators(); |
| if (validators.isEmpty()) { |
| if (require) { |
| log.debug("isValidUser: No active validators for userId '{}' and require -> invalid", userId); |
| return false; |
| } else { |
| log.debug("isValidUser: No active validators for userId '{}' -> valid", userId); |
| return true; |
| } |
| } else { |
| for (final ServiceUserValidator validator : validators) { |
| if (!validator.isValid(userId, serviceName, subServiceName)) { |
| log.debug("isValidUser: Validator {} doesn't accept userId '{}' -> invalid", validator, userId); |
| return false; |
| } |
| } |
| log.debug("isValidUser: All validators accepted userId '{}' -> valid", userId); |
| return true; |
| } |
| } |
| |
| boolean areValidPrincipals(final Iterable<String> principalNames, final String serviceName, final String subServiceName, boolean require) { |
| if (principalNames == null) { |
| log.debug("areValidPrincipals: principalNames are null -> invalid"); |
| return false; |
| } |
| List<ServicePrincipalsValidator> validators = getPrincipalsValidators(); |
| if (validators.isEmpty()) { |
| if (require) { |
| log.debug("areValidPrincipals: No active validators for principal names [{}] and require -> invalid", principalNames); |
| return false; |
| } else { |
| log.debug("areValidPrincipals: No active validators for principal names [{}] -> valid", principalNames); |
| return true; |
| } |
| } else { |
| for (final ServicePrincipalsValidator validator : validators) { |
| if (!validator.isValid(principalNames, serviceName, subServiceName)) { |
| log.debug("areValidPrincipals: Validator {} doesn't accept principal names [{}] -> invalid", validator, principalNames); |
| return false; |
| } |
| } |
| log.debug("areValidPrincipals: All validators accepted principal names [{}] -> valid", principalNames); |
| return true; |
| } |
| } |
| |
| private List<ServiceUserValidator> getUserValidators() { |
| return getValidatorsIfPresent(userValidators); |
| } |
| |
| private List<ServicePrincipalsValidator> getPrincipalsValidators() { |
| return getValidatorsIfPresent(principalsValidators); |
| } |
| |
| private <T> List<T> getValidatorsIfPresent(List<T> validators) { |
| if (presentUserValidators.containsAll(requiredUserValidators) && presentPrincipalValidators.containsAll(requiredPrincipalValidators)) { |
| return validators; |
| } else { |
| return Collections.emptyList(); |
| } |
| } |
| |
| private Iterable<String> internalGetPrincipalNames(final String serviceName, final String subServiceName) { |
| log.debug( |
| "internalGetPrincipalNames: {} active mappings, looking for mapping for {}/{}", |
| new Object[] { this.activeMappings.length, serviceName, subServiceName }); |
| |
| for (final Mapping mapping : this.activeMappings) { |
| final Iterable<String> principalNames = mapping.mapPrincipals(serviceName, subServiceName); |
| if (principalNames != null) { |
| log.debug("Got principalNames [{}] from {}/{}", new Object[] {principalNames, serviceName, subServiceName }); |
| return principalNames; |
| } |
| } |
| |
| // second round without serviceInfo |
| log.debug( |
| "internalGetPrincipalNames: {} active mappings, looking for mapping for {}/<no subServiceName>", |
| this.activeMappings.length, serviceName); |
| |
| for (Mapping mapping : this.activeMappings) { |
| final Iterable<String> principalNames = mapping.mapPrincipals(serviceName, null); |
| if (principalNames != null) { |
| log.debug("Got principalNames [{}] from {}/<no subServiceName>", principalNames, serviceName); |
| return principalNames; |
| } |
| } |
| |
| log.debug("internalGetPrincipalNames: no mapping found."); |
| return null; |
| } |
| |
| String getServiceName(final Bundle bundle) { |
| return bundle.getSymbolicName(); |
| } |
| |
| @Override |
| public List<Mapping> getActiveMappings() { |
| return Collections.unmodifiableList(Arrays.asList(activeMappings)); |
| } |
| |
| class Registration { |
| private Mapping mapping; |
| private ServiceRegistration serviceRegistration; |
| |
| |
| Registration(Mapping mapping) { |
| this.mapping = mapping; |
| this.serviceRegistration = null; |
| } |
| |
| synchronized ServiceRegistration setService(ServiceRegistration serviceRegistration) { |
| ServiceRegistration oldServiceRegistration = this.serviceRegistration; |
| this.serviceRegistration = serviceRegistration; |
| return oldServiceRegistration; |
| } |
| } |
| |
| class RegistrationSet { |
| Collection<Registration> added = new ArrayList<>(); |
| Collection<Registration> removed = new ArrayList<>(); |
| } |
| } |
| |