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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed 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.onosproject.incubator.rpc.grpc;
import java.util.Map;
import org.onosproject.net.device.DeviceProvider;
import org.onosproject.net.device.DeviceProviderRegistry;
import org.onosproject.net.device.DeviceProviderService;
import org.onosproject.net.provider.AbstractProviderRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.collect.Maps;
import io.grpc.Channel;
import io.grpc.ManagedChannel;
// gRPC Client side
/**
* Proxy object to handle DeviceProviderRegistry calls.
*
* RPC wise, this will start/stop bidirectional streaming service sessions.
*/
final class DeviceProviderRegistryClientProxy
extends AbstractProviderRegistry<DeviceProvider, DeviceProviderService>
implements DeviceProviderRegistry {
private final Logger log = LoggerFactory.getLogger(getClass());
private final Channel channel;
private final Map<DeviceProvider, DeviceProviderServiceClientProxy> pServices;
DeviceProviderRegistryClientProxy(ManagedChannel channel) {
this.channel = channel;
pServices = Maps.newIdentityHashMap();
}
@Override
protected synchronized DeviceProviderService createProviderService(DeviceProvider provider) {
// Create session
DeviceProviderServiceClientProxy pService = new DeviceProviderServiceClientProxy(provider, channel);
log.debug("Created DeviceProviderServiceClientProxy", pService);
DeviceProviderServiceClientProxy old = pServices.put(provider, pService);
if (old != null) {
// sanity check, can go away
log.warn("Duplicate registration detected for {}", provider.id());
}
return pService;
}
@Override
public synchronized void unregister(DeviceProvider provider) {
DeviceProviderServiceClientProxy pService = pServices.remove(provider);
log.debug("Unregistering DeviceProviderServiceClientProxy", pService);
super.unregister(provider);
if (pService != null) {
pService.shutdown();
}
}
}
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