hadoop SETATTR3Request 源码
haddop SETATTR3Request 代码
文件路径：/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/SETATTR3Request.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.request;
import java.io.IOException;
import org.apache.hadoop.nfs.NfsTime;
import org.apache.hadoop.nfs.nfs3.FileHandle;
import org.apache.hadoop.oncrpc.XDR;
/**
* SETATTR3 Request
*/
public class SETATTR3Request extends RequestWithHandle {
private final SetAttr3 attr;
/* A client may request that the server check that the object is in an
* expected state before performing the SETATTR operation. If guard.check is
* TRUE, the server must compare the value of ctime to the current ctime of
* the object. If the values are different, the server must preserve the
* object attributes and must return a status of NFS3ERR_NOT_SYNC. If check is
* FALSE, the server will not perform this check.
*/
private final boolean check;
private final NfsTime ctime;
public static SETATTR3Request deserialize(XDR xdr) throws IOException {
FileHandle handle = readHandle(xdr);
SetAttr3 attr = new SetAttr3();
attr.deserialize(xdr);
boolean check = xdr.readBoolean();
NfsTime ctime;
if (check) {
ctime = NfsTime.deserialize(xdr);
} else {
ctime = null;
}
return new SETATTR3Request(handle, attr, check, ctime);
}
public SETATTR3Request(FileHandle handle, SetAttr3 attr, boolean check,
NfsTime ctime) {
super(handle);
this.attr = attr;
this.check = check;
this.ctime = ctime;
}
public SetAttr3 getAttr() {
return attr;
}
public boolean isCheck() {
return check;
}
public NfsTime getCtime() {
return ctime;
}
@Override
public void serialize(XDR xdr) {
handle.serialize(xdr);
attr.serialize(xdr);
xdr.writeBoolean(check);
if (check) {
ctime.serialize(xdr);
}
}
}
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