/**
* Copyright (c) 2014, 2015 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.openflowplugin.applications.frm.impl;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.collect.Sets;
import java.util.Collections;
import java.util.Set;
import java.util.concurrent.atomic.AtomicLong;
import com.google.common.util.concurrent.CheckedFuture;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipState;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
import org.opendaylight.openflowplugin.applications.frm.FlowNodeReconciliation;
import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesCommiter;
import org.opendaylight.openflowplugin.applications.frm.ForwardingRulesManager;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.groups.Group;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.SalMeterService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.features.TableFeatures;
import org.opendaylight.yang.gen.v1.urn.opendaylight.table.service.rev131026.SalTableService;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* forwardingrules-manager
* org.opendaylight.openflowplugin.applications.frm.impl
*
* Manager and middle point for whole module.
* It contains ActiveNodeHolder and provide all RPC services.
*
* @author Vaclav Demcak
*
* Created: Aug 25, 2014
*/
public class ForwardingRulesManagerImpl implements ForwardingRulesManager {
private static final Logger LOG = LoggerFactory.getLogger(ForwardingRulesManagerImpl.class);
public static final int STARTUP_LOOP_TICK = 500;
public static final int STARTUP_LOOP_MAX_RETRIES = 8;
private final AtomicLong txNum = new AtomicLong();
private final Object lockObj = new Object();
private Set> activeNodes = Collections.emptySet();
private final DataBroker dataService;
private final SalFlowService salFlowService;
private final SalGroupService salGroupService;
private final SalMeterService salMeterService;
private final SalTableService salTableService;
private ForwardingRulesCommiter flowListener;
private ForwardingRulesCommiter groupListener;
private ForwardingRulesCommiter meterListener;
private ForwardingRulesCommiter tableListener;
private FlowNodeReconciliation nodeListener;
private final ForwardingRulesManagerConfig forwardingRulesManagerConfig;
private final EntityOwnershipService entityOwnershipService;
public ForwardingRulesManagerImpl(final DataBroker dataBroker,
final RpcConsumerRegistry rpcRegistry,
final ForwardingRulesManagerConfig config,
final EntityOwnershipService eos) {
this.dataService = Preconditions.checkNotNull(dataBroker, "DataBroker can not be null!");
this.forwardingRulesManagerConfig = Preconditions.checkNotNull(config, "Configuration for FRM cannot be null");
this.entityOwnershipService = Preconditions.checkNotNull(eos, "EntityOwnership service can not be null");
Preconditions.checkArgument(rpcRegistry != null, "RpcConsumerRegistry can not be null !");
this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
"RPC SalFlowService not found.");
this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
"RPC SalGroupService not found.");
this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
"RPC SalMeterService not found.");
this.salTableService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalTableService.class),
"RPC SalTableService not found.");
}
@Override
public void start() {
this.flowListener = new FlowForwarder(this, dataService);
this.groupListener = new GroupForwarder(this, dataService);
this.meterListener = new MeterForwarder(this, dataService);
this.tableListener = new TableForwarder(this, dataService);
this.nodeListener = new FlowNodeReconciliationImpl(this, dataService);
LOG.info("ForwardingRulesManager has started successfully.");
}
@Override
public void close() throws Exception {
if (this.flowListener != null) {
this.flowListener.close();
this.flowListener = null;
}
if (this.groupListener != null) {
this.groupListener.close();
this.groupListener = null;
}
if (this.meterListener != null) {
this.meterListener.close();
this.meterListener = null;
}
if (this.tableListener != null) {
this.tableListener.close();
this.tableListener = null;
}
if (this.nodeListener != null) {
this.nodeListener.close();
this.nodeListener = null;
}
}
@Override
public ReadOnlyTransaction getReadTranaction() {
return dataService.newReadOnlyTransaction();
}
@Override
public String getNewTransactionId() {
return "DOM-" + txNum.getAndIncrement();
}
@Override
public boolean isNodeActive(InstanceIdentifier ident) {
return activeNodes.contains(ident);
}
@Override
public boolean checkNodeInOperationalDataStore(InstanceIdentifier ident) {
boolean result = false;
InstanceIdentifier nodeIid = ident.firstIdentifierOf(Node.class);
final ReadOnlyTransaction transaction = dataService.newReadOnlyTransaction();
Optional optionalDataObject;
CheckedFuture, ReadFailedException> future = transaction.read(LogicalDatastoreType.OPERATIONAL, nodeIid);
try {
optionalDataObject = future.checkedGet();
if (optionalDataObject.isPresent()) {
result = true;
} else {
LOG.debug("{}: Failed to read {}",
Thread.currentThread().getStackTrace()[1], nodeIid);
}
} catch (ReadFailedException e) {
LOG.warn("Failed to read {} ", nodeIid, e);
}
transaction.close();
return result;
}
@Override
public void registrateNewNode(InstanceIdentifier ident) {
if (!activeNodes.contains(ident)) {
synchronized (lockObj) {
if (!activeNodes.contains(ident)) {
Set> set =
Sets.newHashSet(activeNodes);
set.add(ident);
activeNodes = Collections.unmodifiableSet(set);
}
}
}
}
@Override
public void unregistrateNode(InstanceIdentifier ident) {
if (activeNodes.contains(ident)) {
synchronized (lockObj) {
if (activeNodes.contains(ident)) {
Set> set =
Sets.newHashSet(activeNodes);
set.remove(ident);
activeNodes = Collections.unmodifiableSet(set);
}
}
}
}
@Override
public SalFlowService getSalFlowService() {
return salFlowService;
}
@Override
public SalGroupService getSalGroupService() {
return salGroupService;
}
@Override
public SalMeterService getSalMeterService() {
return salMeterService;
}
@Override
public SalTableService getSalTableService() {
return salTableService;
}
@Override
public ForwardingRulesCommiter getFlowCommiter() {
return flowListener;
}
@Override
public ForwardingRulesCommiter getGroupCommiter() {
return groupListener;
}
@Override
public ForwardingRulesCommiter getMeterCommiter() {
return meterListener;
}
@Override
public ForwardingRulesCommiter getTableFeaturesCommiter() {
return tableListener;
}
@Override
public FlowNodeReconciliation getFlowNodeReconciliation() {
return nodeListener;
}
@Override
public ForwardingRulesManagerConfig getConfiguration() {
return forwardingRulesManagerConfig;
}
@Override
public boolean isNodeOwner(InstanceIdentifier ident) {
NodeId nodeId = ident.firstKeyOf(Node.class).getId();
Entity entity = new Entity("openflow", nodeId.getValue());
Optional eState = this.entityOwnershipService.getOwnershipState(entity);
if(eState.isPresent()) {
return eState.get().isOwner();
}
return false;
}
}