/*
* 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 org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.ovsdb.lib.error.SchemaVersionMismatchException;
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.HwvtepGlobalRef;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalSwitchAttributes;
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;
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.Identifiable;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.CheckedFuture;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class HwvtepSouthboundUtil {
private static final Logger LOG = LoggerFactory.getLogger(HwvtepSouthboundUtil.class);
private static final String SCHEMA_VERSION_MISMATCH =
"{} column for {} table is not supported by this version of the {} schema: {}";
private static InstanceIdentifierCodec instanceIdentifierCodec;
private HwvtepSouthboundUtil() {
// Prevent instantiating a utility class
}
public static void setInstanceIdentifierCodec(InstanceIdentifierCodec iidc) {
instanceIdentifierCodec = iidc;
}
public static InstanceIdentifierCodec getInstanceIdentifierCodec() {
return instanceIdentifierCodec;
}
public static String serializeInstanceIdentifier(InstanceIdentifier<?> iid) {
return instanceIdentifierCodec.serialize(iid);
}
public static InstanceIdentifier<?> deserializeInstanceIdentifier(String iidString) {
InstanceIdentifier<?> result = null;
try {
result = instanceIdentifierCodec.bindingDeserializer(iidString);
} catch (DeserializationException e) {
LOG.warn("Unable to deserialize iidString", e);
}
return result;
}
public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> Optional<D> readNode(
ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
Optional<D> node = Optional.absent();
try {
node = transaction.read(LogicalDatastoreType.OPERATIONAL, connectionIid).checkedGet();
} catch (final ReadFailedException e) {
LOG.warn("Read Operational/DS for Node failed! {}", connectionIid, e);
}
return node;
}
public static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db,
HwvtepPhysicalSwitchAttributes pNode) {
Preconditions.checkNotNull(pNode);
Optional<HwvtepGlobalAugmentation> result = null;
HwvtepGlobalRef ref = pNode.getManagedBy();
if (ref != null && ref.getValue() != null) {
result = getManagingNode(db, ref);
} else {
LOG.warn("Cannot find client for PhysicalSwitch without a specified ManagedBy {}", pNode);
return Optional.absent();
}
if (!result.isPresent()) {
LOG.warn("Failed to find managing node for PhysicalSwitch {}", pNode);
}
return result;
}
public static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db, HwvtepGlobalRef ref) {
try {
ReadOnlyTransaction transaction = db.newReadOnlyTransaction();
@SuppressWarnings("unchecked")
// Note: erasure makes this safe in combination with the typecheck
// below
InstanceIdentifier<Node> path = (InstanceIdentifier<Node>) ref.getValue();
CheckedFuture<Optional<Node>, ReadFailedException> nf =
transaction.read(LogicalDatastoreType.OPERATIONAL, path);
transaction.close();
Optional<Node> optional = nf.get();
if (optional != null && optional.isPresent()) {
HwvtepGlobalAugmentation hwvtepNode = null;
Node node = optional.get();
if (node instanceof HwvtepGlobalAugmentation) {
hwvtepNode = (HwvtepGlobalAugmentation) node;
} else if (node != null) {
hwvtepNode = node.getAugmentation(HwvtepGlobalAugmentation.class);
}
if (hwvtepNode != null) {
return Optional.of(hwvtepNode);
} else {
LOG.warn("Hwvtep switch claims to be managed by {} but " + "that HwvtepNode does not exist",
ref.getValue());
return Optional.absent();
}
} else {
LOG.warn("Mysteriously got back a thing which is *not* a topology Node: {}", optional);
return Optional.absent();
}
} catch (Exception e) {
LOG.warn("Failed to get HwvtepNode {}", ref, e);
return Optional.absent();
}
}
public static String connectionInfoToString(final ConnectionInfo connectionInfo) {
return String.valueOf(
connectionInfo.getRemoteIp().getValue()) + ":" + connectionInfo.getRemotePort().getValue();
}
public static void schemaMismatchLog(String column, String table, SchemaVersionMismatchException ex) {
LOG.debug(SCHEMA_VERSION_MISMATCH, column, table, "hw_vtep", ex.getMessage());
}
public static <KeyType, D> void updateData(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
Class<? extends Identifiable> cls, KeyType key, D data) {
if (key == null) {
return;
}
if (!map.containsKey(cls)) {
map.put(cls, new ConcurrentHashMap<>());
}
map.get(cls).put(key, data);
}
public static <KeyType, D> D getData(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
Class<? extends Identifiable> cls, KeyType key) {
if (key == null) {
return null;
}
if (map.containsKey(cls)) {
return map.get(cls).get(key);
}
return null;
}
public static <KeyType, D> boolean containsKey(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
Class<? extends Identifiable> cls, KeyType key) {
if (key == null) {
return false;
}
if (map.containsKey(cls)) {
return map.get(cls).containsKey(key);
}
return false;
}
public static <KeyType, D> void clearData(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
Class<? extends Identifiable> cls, KeyType key) {
if (key == null) {
return;
}
if (map.containsKey(cls)) {
map.get(cls).remove(key);
}
}
public static <T> boolean isEmpty(Collection<T> list) {
return list == null || list.isEmpty();
}
public static boolean isEmptyMap(Map map) {
return map == null || map.isEmpty();
}
public static InstanceIdentifier<Node> getGlobalNodeIid(final InstanceIdentifier<Node> physicalNodeIid) {
String nodeId = physicalNodeIid.firstKeyOf(Node.class).getNodeId().getValue();
int physicalSwitchIndex = nodeId.indexOf(HwvtepSouthboundConstants.PSWITCH_URI_PREFIX);
if (physicalSwitchIndex > 0) {
nodeId = nodeId.substring(0, physicalSwitchIndex - 1);
} else {
return null;
}
return physicalNodeIid.firstIdentifierOf(Topology.class).child(Node.class , new NodeKey(new NodeId(nodeId)));
}
}