hadoop WRITE3Response 源码
haddop WRITE3Response 代码
文件路径：/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/response/WRITE3Response.java
/**
* 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.nfs.nfs3.response;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.apache.hadoop.nfs.nfs3.Nfs3Status;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant.WriteStableHow;
import org.apache.hadoop.oncrpc.XDR;
import org.apache.hadoop.oncrpc.security.Verifier;
/**
* WRITE3 Response
*/
public class WRITE3Response extends NFS3Response {
private final WccData fileWcc; // return on both success and failure
private final int count;
private final WriteStableHow stableHow;
private final long verifer;
public WRITE3Response(int status) {
this(status, new WccData(null, null), 0, WriteStableHow.UNSTABLE,
Nfs3Constant.WRITE_COMMIT_VERF);
}
public WRITE3Response(int status, WccData fileWcc, int count,
WriteStableHow stableHow, long verifier) {
super(status);
this.fileWcc = fileWcc;
this.count = count;
this.stableHow = stableHow;
this.verifer = verifier;
}
public int getCount() {
return count;
}
public WriteStableHow getStableHow() {
return stableHow;
}
public long getVerifer() {
return verifer;
}
public static WRITE3Response deserialize(XDR xdr) {
int status = xdr.readInt();
WccData fileWcc = WccData.deserialize(xdr);
int count = 0;
WriteStableHow stableHow = null;
long verifier = 0;
if (status == Nfs3Status.NFS3_OK) {
count = xdr.readInt();
int how = xdr.readInt();
stableHow = WriteStableHow.values()[how];
verifier = xdr.readHyper();
}
return new WRITE3Response(status, fileWcc, count, stableHow, verifier);
}
@Override
public XDR serialize(XDR out, int xid, Verifier verifier) {
super.serialize(out, xid, verifier);
fileWcc.serialize(out);
if (getStatus() == Nfs3Status.NFS3_OK) {
out.writeInt(count);
out.writeInt(stableHow.getValue());
out.writeLongAsHyper(verifer);
}
return out;
}
}
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