hadoop LOOKUP3Response 源码
haddop LOOKUP3Response 代码
文件路径：/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/response/LOOKUP3Response.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 java.io.IOException;
import org.apache.hadoop.nfs.nfs3.FileHandle;
import org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes;
import org.apache.hadoop.nfs.nfs3.Nfs3Status;
import org.apache.hadoop.oncrpc.XDR;
import org.apache.hadoop.oncrpc.security.Verifier;
/**
* LOOKUP3 Response
*/
public class LOOKUP3Response extends NFS3Response {
private final FileHandle fileHandle;
private final Nfs3FileAttributes postOpObjAttr; // Can be null
private final Nfs3FileAttributes postOpDirAttr; // Can be null
public LOOKUP3Response(int status) {
this(status, null, new Nfs3FileAttributes(), new Nfs3FileAttributes());
}
public LOOKUP3Response(int status, FileHandle fileHandle,
Nfs3FileAttributes postOpObjAttr, Nfs3FileAttributes postOpDirAttributes) {
super(status);
this.fileHandle = fileHandle;
this.postOpObjAttr = postOpObjAttr;
this.postOpDirAttr = postOpDirAttributes;
}
public LOOKUP3Response(XDR xdr) throws IOException {
super(-1);
fileHandle = new FileHandle();
status = xdr.readInt();
Nfs3FileAttributes objAttr = null;
if (status == Nfs3Status.NFS3_OK) {
if (!fileHandle.deserialize(xdr)) {
throw new IOException("can't deserialize file handle");
}
objAttr = xdr.readBoolean() ? Nfs3FileAttributes.deserialize(xdr) : null;
}
postOpObjAttr = objAttr;
postOpDirAttr = xdr.readBoolean() ? Nfs3FileAttributes.deserialize(xdr)
: null;
}
@Override
public XDR serialize(XDR out, int xid, Verifier verifier) {
super.serialize(out, xid, verifier);
if (this.status == Nfs3Status.NFS3_OK) {
fileHandle.serialize(out);
out.writeBoolean(true); // Attribute follows
postOpObjAttr.serialize(out);
}
out.writeBoolean(true); // Attribute follows
postOpDirAttr.serialize(out);
return out;
}
}
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