/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.ignite.internal.processors.cache.distributed.dht.preloader;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.nio.ByteBuffer;
import java.util.UUID;
import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion;
import org.apache.ignite.internal.util.tostring.GridToStringExclude;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.plugin.extensions.communication.Message;
import org.apache.ignite.plugin.extensions.communication.MessageReader;
import org.apache.ignite.plugin.extensions.communication.MessageWriter;
import org.jetbrains.annotations.NotNull;
import static org.apache.ignite.events.EventType.EVT_NODE_FAILED;
import static org.apache.ignite.events.EventType.EVT_NODE_JOINED;
import static org.apache.ignite.events.EventType.EVT_NODE_LEFT;
import static org.apache.ignite.internal.events.DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT;
/**
* Exchange ID.
*/
public class GridDhtPartitionExchangeId implements Message, Comparable<GridDhtPartitionExchangeId>, Externalizable {
/** */
private static final long serialVersionUID = 0L;
/** Node ID. */
@GridToStringExclude
private UUID nodeId;
/** Event. */
@GridToStringExclude
private int evt;
/** Topology version. */
private AffinityTopologyVersion topVer;
/**
* @param nodeId Node ID.
* @param evt Event.
* @param topVer Topology version.
*/
public GridDhtPartitionExchangeId(UUID nodeId, int evt, @NotNull AffinityTopologyVersion topVer) {
assert nodeId != null;
assert evt == EVT_NODE_LEFT || evt == EVT_NODE_FAILED || evt == EVT_NODE_JOINED ||
evt == EVT_DISCOVERY_CUSTOM_EVT;
assert topVer.topologyVersion() > 0;
this.nodeId = nodeId;
this.evt = evt;
this.topVer = topVer;
}
/**
* Empty constructor required by {@link Externalizable}.
*/
public GridDhtPartitionExchangeId() {
// No-op.
}
/**
* @return Node ID.
*/
public UUID nodeId() {
return nodeId;
}
/**
* @return Event.
*/
public int event() {
return evt;
}
/**
* @return Order.
*/
public AffinityTopologyVersion topologyVersion() {
return topVer;
}
/**
* @return {@code True} if exchange is for new node joining.
*/
public boolean isJoined() {
return evt == EVT_NODE_JOINED;
}
/**
* @return {@code True} if exchange is for node leaving.
*/
public boolean isLeft() {
return evt == EVT_NODE_LEFT || evt == EVT_NODE_FAILED;
}
/** {@inheritDoc} */
@Override public void onAckReceived() {
// No-op.
}
/** {@inheritDoc} */
@Override public void writeExternal(ObjectOutput out) throws IOException {
U.writeUuid(out, nodeId);
out.writeObject(topVer);
out.writeInt(evt);
}
/** {@inheritDoc} */
@Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
nodeId = U.readUuid(in);
topVer = (AffinityTopologyVersion)in.readObject();
evt = in.readInt();
}
/** {@inheritDoc} */
@Override public int compareTo(GridDhtPartitionExchangeId o) {
if (o == this)
return 0;
return topVer.compareTo(o.topVer);
}
/** {@inheritDoc} */
@Override public int hashCode() {
int res = nodeId.hashCode();
res = 31 * res + evt;
res = 31 * res + topVer.hashCode();
return res;
}
/** {@inheritDoc} */
@Override public boolean equals(Object o) {
if (o == this)
return true;
GridDhtPartitionExchangeId id = (GridDhtPartitionExchangeId)o;
return evt == id.evt && topVer.equals(id.topVer) && nodeId.equals(id.nodeId);
}
/** {@inheritDoc} */
@Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) {
writer.setBuffer(buf);
if (!writer.isHeaderWritten()) {
if (!writer.writeHeader(directType(), fieldsCount()))
return false;
writer.onHeaderWritten();
}
switch (writer.state()) {
case 0:
if (!writer.writeInt("evt", evt))
return false;
writer.incrementState();
case 1:
if (!writer.writeUuid("nodeId", nodeId))
return false;
writer.incrementState();
case 2:
if (!writer.writeMessage("topVer", topVer))
return false;
writer.incrementState();
}
return true;
}
/** {@inheritDoc} */
@Override public boolean readFrom(ByteBuffer buf, MessageReader reader) {
reader.setBuffer(buf);
if (!reader.beforeMessageRead())
return false;
switch (reader.state()) {
case 0:
evt = reader.readInt("evt");
if (!reader.isLastRead())
return false;
reader.incrementState();
case 1:
nodeId = reader.readUuid("nodeId");
if (!reader.isLastRead())
return false;
reader.incrementState();
case 2:
topVer = reader.readMessage("topVer");
if (!reader.isLastRead())
return false;
reader.incrementState();
}
return reader.afterMessageRead(GridDhtPartitionExchangeId.class);
}
/** {@inheritDoc} */
@Override public short directType() {
return 87;
}
/** {@inheritDoc} */
@Override public byte fieldsCount() {
return 3;
}
/** {@inheritDoc} */
@Override public String toString() {
return S.toString(GridDhtPartitionExchangeId.class, this,
"nodeId", U.id8(nodeId),
"evt", U.gridEventName(evt));
}
}