/*
* Copyright (c) 2015, 2017 Ericsson India Global Services Pvt Ltd. 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.ovsdb.hwvtepsouthbound;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import javax.annotation.Nonnull;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidateRegistration;
import org.opendaylight.ovsdb.hwvtepsouthbound.transact.TransactCommand;
import org.opendaylight.ovsdb.hwvtepsouthbound.transact.TransactInvoker;
import org.opendaylight.ovsdb.hwvtepsouthbound.transact.TransactInvokerImpl;
import org.opendaylight.ovsdb.hwvtepsouthbound.transactions.md.TransactionInvoker;
import org.opendaylight.ovsdb.lib.LockAquisitionCallback;
import org.opendaylight.ovsdb.lib.LockStolenCallback;
import org.opendaylight.ovsdb.lib.MonitorCallBack;
import org.opendaylight.ovsdb.lib.MonitorHandle;
import org.opendaylight.ovsdb.lib.OvsdbClient;
import org.opendaylight.ovsdb.lib.OvsdbConnectionInfo;
import org.opendaylight.ovsdb.lib.message.MonitorRequest;
import org.opendaylight.ovsdb.lib.message.MonitorRequestBuilder;
import org.opendaylight.ovsdb.lib.message.MonitorSelect;
import org.opendaylight.ovsdb.lib.message.TableUpdates;
import org.opendaylight.ovsdb.lib.notation.Row;
import org.opendaylight.ovsdb.lib.operations.Operation;
import org.opendaylight.ovsdb.lib.operations.OperationResult;
import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
import org.opendaylight.ovsdb.lib.schema.GenericTableSchema;
import org.opendaylight.ovsdb.lib.schema.TableSchema;
import org.opendaylight.ovsdb.lib.schema.typed.TypedBaseTable;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.ConnectionInfo;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.util.concurrent.ListenableFuture;
public class HwvtepConnectionInstance {
private static final Logger LOG = LoggerFactory.getLogger(HwvtepConnectionInstance.class);
private ConnectionInfo connectionInfo;
private OvsdbClient client;
private InstanceIdentifier<Node> instanceIdentifier;
private TransactionInvoker txInvoker;
private Map<DatabaseSchema,TransactInvoker> transactInvokers;
private MonitorCallBack callback;
private volatile boolean hasDeviceOwnership = false;
private Entity connectedEntity;
private EntityOwnershipCandidateRegistration deviceOwnershipCandidateRegistration;
private HwvtepGlobalAugmentation initialCreatedData = null;
private HwvtepDeviceInfo deviceInfo;
private DataBroker dataBroker;
private final HwvtepConnectionManager hwvtepConnectionManager;
HwvtepConnectionInstance (HwvtepConnectionManager hwvtepConnectionManager, ConnectionInfo key, OvsdbClient client,
InstanceIdentifier<Node> iid, TransactionInvoker txInvoker, DataBroker dataBroker) {
this.hwvtepConnectionManager = hwvtepConnectionManager;
this.connectionInfo = key;
this.client = client;
this.instanceIdentifier = iid;
this.txInvoker = txInvoker;
this.deviceInfo = new HwvtepDeviceInfo(this);
this.dataBroker = dataBroker;
}
public synchronized void transact(TransactCommand command) {
for (TransactInvoker transactInvoker: transactInvokers.values()) {
transactInvoker.invoke(command);
}
}
public void registerCallbacks() {
if ( this.callback == null) {
if(this.initialCreatedData != null) {
this.updateConnectionAttributes();
}
try {
String database = HwvtepSchemaConstants.HARDWARE_VTEP;
DatabaseSchema dbSchema = getSchema(database).get();
if (dbSchema != null) {
LOG.info("Monitoring database: {}", database);
callback = new HwvtepMonitorCallback(this, txInvoker);
monitorAllTables(database, dbSchema);
} else {
LOG.info("No database {} found on {}", database, connectionInfo);
}
} catch (InterruptedException | ExecutionException e) {
LOG.warn("Exception attempting to registerCallbacks {}: ", connectionInfo, e);
}
}
}
public void createTransactInvokers() {
if (transactInvokers == null) {
try {
transactInvokers = new HashMap<>();
DatabaseSchema dbSchema = getSchema(HwvtepSchemaConstants.HARDWARE_VTEP).get();
if(dbSchema != null) {
transactInvokers.put(dbSchema, new TransactInvokerImpl(this,dbSchema));
}
} catch (InterruptedException | ExecutionException e) {
LOG.warn("Exception attempting to createTransactionInvokers {}", connectionInfo, e);
}
}
}
private void monitorAllTables(String database, DatabaseSchema dbSchema) {
Set<String> tables = dbSchema.getTables();
if (tables != null) {
List<MonitorRequest> monitorRequests = new ArrayList<>();
for (String tableName : tables) {
if (!HwvtepSouthboundConstants.SKIP_HWVTEP_TABLE.containsKey(tableName)) {
LOG.info("HwvtepSouthbound monitoring Hwvtep schema table {}", tableName);
GenericTableSchema tableSchema = dbSchema.table(tableName, GenericTableSchema.class);
Set<String> columns = new HashSet<>(tableSchema.getColumns());
List<String> skipColumns = HwvtepSouthboundConstants.SKIP_COLUMN_FROM_HWVTEP_TABLE.get(tableName);
if (skipColumns != null) {
LOG.info("HwvtepSouthbound NOT monitoring columns {} in table {}", skipColumns, tableName);
columns.removeAll(skipColumns);
}
monitorRequests.add(new MonitorRequestBuilder<>(tableSchema)
.addColumns(columns)
.with(new MonitorSelect(true, true, true, true)).build());
}
}
this.callback.update(monitor(dbSchema, monitorRequests, callback), dbSchema);
} else {
LOG.warn("No tables for schema {} for database {} for key {}",dbSchema,database,connectionInfo);
}
}
private void updateConnectionAttributes() {
LOG.debug("Update attributes of ovsdb node ip: {} port: {}",
this.initialCreatedData.getConnectionInfo().getRemoteIp(),
this.initialCreatedData.getConnectionInfo().getRemotePort());
/*
* TODO: Do we have anything to update?
* Hwvtep doesn't have other_config or external_ids like
* Open_vSwitch. What else will be needed?
*/
}
public DataBroker getDataBroker() {
return dataBroker;
}
public ListenableFuture<List<String>> getDatabases() {
return client.getDatabases();
}
public ListenableFuture<DatabaseSchema> getSchema(String database) {
return client.getSchema(database);
}
public TransactionBuilder transactBuilder(DatabaseSchema dbSchema) {
return client.transactBuilder(dbSchema);
}
public ListenableFuture<List<OperationResult>> transact(DatabaseSchema dbSchema, List<Operation> operations) {
return client.transact(dbSchema, operations);
}
public <E extends TableSchema<E>> TableUpdates monitor(DatabaseSchema schema,
List<MonitorRequest> monitorRequests, MonitorCallBack callback) {
return client.monitor(schema, monitorRequests, callback);
}
public <E extends TableSchema<E>> TableUpdates monitor(DatabaseSchema schema,
List<MonitorRequest> monitorRequests, MonitorHandle monitorHandle, MonitorCallBack callback) {
return null;
}
public void cancelMonitor(MonitorHandle handler) {
client.cancelMonitor(handler);
}
public void lock(String lockId, LockAquisitionCallback lockedCallBack, LockStolenCallback stolenCallback) {
client.lock(lockId, lockedCallBack, stolenCallback);
}
public ListenableFuture<Boolean> steal(String lockId) {
return client.steal(lockId);
}
public ListenableFuture<Boolean> unLock(String lockId) {
return client.unLock(lockId);
}
public OvsdbConnectionInfo getConnectionInfo() {
return client.getConnectionInfo();
}
public boolean isActive() {
return client.isActive();
}
public void disconnect() {
client.disconnect();
}
public DatabaseSchema getDatabaseSchema(String dbName) {
return client.getDatabaseSchema(dbName);
}
public <T extends TypedBaseTable<?>> T createTypedRowWrapper(Class<T> klazz) {
return client.createTypedRowWrapper(klazz);
}
public <T extends TypedBaseTable<?>> T createTypedRowWrapper(DatabaseSchema dbSchema, Class<T> klazz) {
return client.createTypedRowWrapper(dbSchema, klazz);
}
public <T extends TypedBaseTable<?>> T getTypedRowWrapper(Class<T> klazz, Row<GenericTableSchema> row) {
return client.getTypedRowWrapper(klazz, row);
}
public ConnectionInfo getMDConnectionInfo() {
return connectionInfo;
}
public void setMDConnectionInfo(ConnectionInfo key) {
this.connectionInfo = key;
}
public InstanceIdentifier<Node> getInstanceIdentifier() {
return instanceIdentifier;
}
public NodeKey getNodeKey() {
//TODO: What is the alternative here?
return getInstanceIdentifier().firstKeyOf(Node.class);
}
public NodeId getNodeId() {
return getNodeKey().getNodeId();
}
public void setInstanceIdentifier(InstanceIdentifier<Node> iid) {
this.instanceIdentifier = iid;
hwvtepConnectionManager.putConnectionInstance(instanceIdentifier, this);
}
public Entity getConnectedEntity() {
return this.connectedEntity;
}
public void setConnectedEntity(Entity entity ) {
this.connectedEntity = entity;
}
public Boolean hasOvsdbClient(OvsdbClient otherClient) {
return client.equals(otherClient);
}
public Boolean getHasDeviceOwnership() {
return hasDeviceOwnership;
}
public void setHasDeviceOwnership(Boolean hasDeviceOwnership) {
if (hasDeviceOwnership != null) {
this.hasDeviceOwnership = hasDeviceOwnership;
}
}
public void setDeviceOwnershipCandidateRegistration(@Nonnull EntityOwnershipCandidateRegistration registration) {
this.deviceOwnershipCandidateRegistration = registration;
}
public void closeDeviceOwnershipCandidateRegistration() {
if (deviceOwnershipCandidateRegistration != null) {
this.deviceOwnershipCandidateRegistration.close();
setHasDeviceOwnership(Boolean.FALSE);
}
}
public void setHwvtepGlobalAugmentation(HwvtepGlobalAugmentation hwvtepGlobalData) {
this.initialCreatedData = hwvtepGlobalData;
}
public HwvtepGlobalAugmentation getHwvtepGlobalAugmentation() {
return this.initialCreatedData;
}
public HwvtepDeviceInfo getDeviceInfo() {
return this.deviceInfo;
}
public OvsdbClient getOvsdbClient() {
return client;
}
}