*/
package org.opendaylight.openflowplugin.impl.rpc;
-import org.slf4j.Logger;
-
-import com.google.common.util.concurrent.SettableFuture;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
+import com.google.common.base.Preconditions;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.concurrent.Semaphore;
import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.RoutedRpcRegistration;
+import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
+import org.opendaylight.openflowplugin.api.openflow.rpc.ItemLifeCycleSource;
import org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext;
+import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageSpy;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeContext;
import org.opendaylight.yangtools.yang.binding.RpcService;
-import org.opendaylight.yangtools.yang.common.RpcError;
-import org.opendaylight.yangtools.yang.common.RpcResult;
-import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
public class RpcContextImpl implements RpcContext {
-
- private static final Logger LOG = org.slf4j.LoggerFactory.getLogger(RpcContextImpl.class);
- final ProviderContext providerContext;
-
- // TODO: add private Sal salBroker
+ private static final Logger LOG = LoggerFactory.getLogger(RpcContextImpl.class);
+ private final RpcProviderRegistry rpcProviderRegistry;
private final DeviceContext deviceContext;
- private final List<RoutedRpcRegistration> rpcRegistrations = new ArrayList<>();
- private final List<RequestContext<?>> synchronizedRequestsList = Collections
- .<RequestContext<?>>synchronizedList(new ArrayList<RequestContext<?>>());
+ private final MessageSpy messageSpy;
+ private final Semaphore tracker;
- private int maxRequestsPerDevice;
+ // TODO: add private Sal salBroker
+ private final Collection<RoutedRpcRegistration<?>> rpcRegistrations = new HashSet<>();
- public RpcContextImpl(final ProviderContext providerContext, final DeviceContext deviceContext) {
- this.providerContext = providerContext;
- this.deviceContext = deviceContext;
+ public RpcContextImpl(final MessageSpy messageSpy, final RpcProviderRegistry rpcProviderRegistry, final DeviceContext deviceContext, final int maxRequests) {
+ this.messageSpy = messageSpy;
+ this.rpcProviderRegistry = rpcProviderRegistry;
+ this.deviceContext = Preconditions.checkNotNull(deviceContext);
+ tracker = new Semaphore(maxRequests, true);
}
/**
* @see org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext#registerRpcServiceImplementation(java.lang.Class,
- * org.opendaylight.yangtools.yang.binding.RpcService)
+ * org.opendaylight.yangtools.yang.binding.RpcService)
*/
@Override
public <S extends RpcService> void registerRpcServiceImplementation(final Class<S> serviceClass,
- final S serviceInstance) {
- final RoutedRpcRegistration<S> routedRpcReg = providerContext.addRoutedRpcImplementation(serviceClass, serviceInstance);
+ final S serviceInstance) {
+ final RoutedRpcRegistration<S> routedRpcReg = rpcProviderRegistry.addRoutedRpcImplementation(serviceClass, serviceInstance);
routedRpcReg.registerPath(NodeContext.class, deviceContext.getDeviceState().getNodeInstanceIdentifier());
rpcRegistrations.add(routedRpcReg);
- }
-
- @Override
- public <T> SettableFuture<RpcResult<T>> storeOrFail(final RequestContext<T> requestContext) {
- final SettableFuture<RpcResult<T>> rpcResultFuture = requestContext.getFuture();
+ LOG.debug("Registration of service {} for device {}.", serviceClass, deviceContext.getDeviceState().getNodeInstanceIdentifier());
- if (synchronizedRequestsList.size() < maxRequestsPerDevice) {
- synchronizedRequestsList.add(requestContext);
- } else {
- final RpcResult<T> rpcResult = RpcResultBuilder.<T>failed()
- .withError(RpcError.ErrorType.APPLICATION, "", "Device's request queue is full.").build();
- rpcResultFuture.set(rpcResult);
+ if (serviceInstance instanceof ItemLifeCycleSource) {
+ // TODO: collect registration for selective unregistering in case of tearing down only one rpc
+ deviceContext.getItemLifeCycleSourceRegistry().registerLifeCycleSource((ItemLifeCycleSource) serviceInstance);
}
- return rpcResultFuture;
}
/**
* @see java.lang.AutoCloseable#close()
*/
@Override
- public void close() throws Exception {
+ public void close() {
for (final RoutedRpcRegistration<?> rpcRegistration : rpcRegistrations) {
rpcRegistration.unregisterPath(NodeContext.class, deviceContext.getDeviceState().getNodeInstanceIdentifier());
rpcRegistration.close();
}
}
- /**
- * @see org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext#setRequestContextQuota(int)
- */
@Override
- public void setRequestContextQuota(final int maxRequestsPerDevice) {
- this.maxRequestsPerDevice = maxRequestsPerDevice;
- }
+ public <T> RequestContext<T> createRequestContext() {
+ if (!tracker.tryAcquire()) {
+ LOG.trace("Device queue {} at capacity", this);
+ return null;
+ }
- @Override
- public <T> void forgetRequestContext(final RequestContext<T> requestContext) {
- synchronizedRequestsList.remove(requestContext);
- LOG.trace("Removed request context with xid {}. Context request in list {}.",
- requestContext.getXid(), synchronizedRequestsList.size());
+ return new AbstractRequestContext<T>(deviceContext.getReservedXid()) {
+ @Override
+ public void close() {
+ tracker.release();
+ LOG.trace("Removed request context with xid {}", getXid().getValue());
+ messageSpy.spyMessage(RpcContextImpl.class, MessageSpy.STATISTIC_GROUP.REQUEST_STACK_FREED);
+ }
+ };
}
@Override
- public DeviceContext getDeviceContext() {
- return deviceContext;
+ public void onDeviceContextClosed(DeviceContext deviceContext) {
+ close();
}
-
- @Override
- public <T> RequestContext<T> createRequestContext() {
- return new RequestContextImpl<T>(this);
- }
-
- public boolean isRequestContextCapacityEmpty() {
- return synchronizedRequestsList.size() <= maxRequestsPerDevice;
- }
-
}