/**
* 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.hadoop.hdfs.qjournal.protocol;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.hdfs.server.common.HdfsConstants;
import org.apache.hadoop.io.Writable;
@InterfaceAudience.Private
public class RequestInfo implements Writable {
private byte[] jid;
private long epoch;
private long ipcSerialNumber;
private long committedTxId;
public RequestInfo() {
}
public RequestInfo(byte[] jid, long epoch, long ipcSerialNumber,
long committedTxId) {
this.jid = jid;
this.epoch = epoch;
this.ipcSerialNumber = ipcSerialNumber;
this.committedTxId = committedTxId;
}
public long getEpoch() {
return epoch;
}
public void setEpoch(long epoch) {
this.epoch = epoch;
}
public byte[] getJournalId() {
return jid;
}
public long getIpcSerialNumber() {
return ipcSerialNumber;
}
public void setIpcSerialNumber(long ipcSerialNumber) {
this.ipcSerialNumber = ipcSerialNumber;
}
public long getCommittedTxId() {
return committedTxId;
}
public boolean hasCommittedTxId() {
return (committedTxId != HdfsConstants.INVALID_TXID);
}
@Override
public void write(DataOutput out) throws IOException {
out.writeShort(jid.length);
out.write(jid, 0, jid.length);
out.writeLong(epoch);
out.writeLong(ipcSerialNumber);
out.writeLong(committedTxId);
}
@Override
public void readFields(DataInput in) throws IOException {
jid = new byte[in.readShort()];
in.readFully(jid, 0, jid.length);
epoch = in.readLong();
ipcSerialNumber = in.readLong();
committedTxId = in.readLong();
}
}