2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.controller.sal.dom.broker;
10 import java.util.Collections
11 import java.util.HashMap
12 import java.util.HashSet
15 import java.util.concurrent.Callable
16 import java.util.concurrent.ExecutorService
17 import java.util.concurrent.Executors
18 import java.util.concurrent.Future
19 import org.opendaylight.controller.sal.core.api.Broker
20 import org.opendaylight.controller.sal.core.api.BrokerService
21 import org.opendaylight.controller.sal.core.api.Consumer
22 import org.opendaylight.controller.sal.core.api.Provider
23 import org.opendaylight.controller.sal.core.api.RpcImplementation
24 import org.opendaylight.controller.sal.core.spi.BrokerModule
25 import org.opendaylight.yangtools.yang.common.QName
26 import org.opendaylight.yangtools.yang.common.RpcResult
27 import org.opendaylight.yangtools.yang.data.api.CompositeNode
28 import org.osgi.framework.BundleContext
29 import org.slf4j.LoggerFactory
31 public class BrokerImpl implements Broker {
32 private static val log = LoggerFactory.getLogger(BrokerImpl);
34 // Broker Generic Context
35 private val Set<ConsumerContextImpl> sessions = Collections.synchronizedSet(new HashSet<ConsumerContextImpl>());
36 private val Set<ProviderContextImpl> providerSessions = Collections.synchronizedSet(
37 new HashSet<ProviderContextImpl>());
38 private val Set<BrokerModule> modules = Collections.synchronizedSet(new HashSet<BrokerModule>());
39 private val Map<Class<? extends BrokerService>, BrokerModule> serviceProviders = Collections.
40 synchronizedMap(new HashMap<Class<? extends BrokerService>, BrokerModule>());
43 private val Map<QName, RpcImplementation> rpcImpls = Collections.synchronizedMap(
44 new HashMap<QName, RpcImplementation>());
46 // Implementation specific
48 private var ExecutorService executor = Executors.newFixedThreadPool(5);
50 private var BundleContext bundleContext;
52 override registerConsumer(Consumer consumer, BundleContext ctx) {
53 checkPredicates(consumer);
54 log.info("Registering consumer " + consumer);
55 val session = newSessionFor(consumer, ctx);
56 consumer.onSessionInitiated(session);
57 sessions.add(session);
61 override registerProvider(Provider provider, BundleContext ctx) {
62 checkPredicates(provider);
64 val session = newSessionFor(provider, ctx);
65 provider.onSessionInitiated(session);
66 providerSessions.add(session);
70 public def addModule(BrokerModule module) {
71 log.info("Registering broker module " + module);
72 if(modules.contains(module)) {
73 log.error("Module already registered");
74 throw new IllegalArgumentException("Module already exists.");
77 val provServices = module.getProvidedServices();
78 for (Class<? extends BrokerService> serviceType : provServices) {
79 log.info(" Registering session service implementation: " + serviceType.getCanonicalName());
80 serviceProviders.put(serviceType, module);
84 public def <T extends BrokerService> T serviceFor(Class<T> service, ConsumerContextImpl session) {
85 val prov = serviceProviders.get(service);
87 log.warn("Service " + service.toString() + " is not supported");
90 return prov.getServiceForSession(service, session);
94 protected def void addRpcImplementation(QName rpcType, RpcImplementation implementation) {
95 if(rpcImpls.get(rpcType) != null) {
96 throw new IllegalStateException("Implementation for rpc " + rpcType + " is already registered.");
99 //TODO: Add notification for availability of Rpc Implementation
100 rpcImpls.put(rpcType, implementation);
103 protected def void removeRpcImplementation(QName rpcType) {
104 rpcImpls.remove(rpcType);
107 protected def Future<RpcResult<CompositeNode>> invokeRpc(QName rpc, CompositeNode input) {
108 val impl = rpcImpls.get(rpc);
109 val result = executor.submit([|impl.invokeRpc(rpc, input)] as Callable<RpcResult<CompositeNode>>);
114 private def void checkPredicates(Provider prov) {
116 throw new IllegalArgumentException("Provider should not be null.");
117 for (ProviderContextImpl session : providerSessions) {
118 if(prov.equals(session.getProvider()))
119 throw new IllegalStateException("Provider already registered");
124 private def void checkPredicates(Consumer cons) {
126 throw new IllegalArgumentException("Consumer should not be null.");
127 for (ConsumerContextImpl session : sessions) {
128 if(cons.equals(session.getConsumer()))
129 throw new IllegalStateException("Consumer already registered");
133 // Private Factory methods
134 private def ConsumerContextImpl newSessionFor(Consumer provider, BundleContext ctx) {
135 val ret = new ConsumerContextImpl(provider, ctx);
140 private def ProviderContextImpl newSessionFor(Provider provider, BundleContext ctx) {
141 val ret = new ProviderContextImpl(provider, ctx);
146 protected def void consumerSessionClosed(ConsumerContextImpl consumerContextImpl) {
147 sessions.remove(consumerContextImpl);
148 providerSessions.remove(consumerContextImpl);