| /** |
| * 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.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; |
| |
| /** |
| * FSSTAT3 Response |
| */ |
| public class FSSTAT3Response extends NFS3Response { |
| private Nfs3FileAttributes postOpAttr; |
| |
| // The total size, in bytes, of the file system. |
| private final long tbytes; |
| |
| // The amount of free space, in bytes, in the file system. |
| private final long fbytes; |
| |
| /* |
| * The amount of free space, in bytes, available to the user identified by the |
| * authentication information in the RPC. (This reflects space that is |
| * reserved by the file system; it does not reflect any quota system |
| * implemented by the server.) |
| */ |
| private final long abytes; |
| |
| /* |
| * The total number of file slots in the file system. (On a UNIX server, this |
| * often corresponds to the number of inodes configured.) |
| */ |
| private final long tfiles; |
| |
| /* The number of free file slots in the file system. */ |
| private final long ffiles; |
| |
| /* |
| * The number of free file slots that are available to the user corresponding |
| * to the authentication information in the RPC. (This reflects slots that are |
| * reserved by the file system; it does not reflect any quota system |
| * implemented by the server.) |
| */ |
| private final long afiles; |
| |
| /* |
| * A measure of file system volatility: this is the number of seconds for |
| * which the file system is not expected to change. For a volatile, frequently |
| * updated file system, this will be 0. For an immutable file system, such as |
| * a CD-ROM, this would be the largest unsigned integer. For file systems that |
| * are infrequently modified, for example, one containing local executable |
| * programs and on-line documentation, a value corresponding to a few hours or |
| * days might be used. The client may use this as a hint in tuning its cache |
| * management. Note however, this measure is assumed to be dynamic and may |
| * change at any time. |
| */ |
| private final int invarsec; |
| |
| public FSSTAT3Response(int status) { |
| this(status, null, 0, 0, 0, 0, 0, 0, 0); |
| } |
| |
| public FSSTAT3Response(int status, Nfs3FileAttributes postOpAttr, |
| long tbytes, long fbytes, long abytes, long tfiles, long ffiles, |
| long afiles, int invarsec) { |
| super(status); |
| this.postOpAttr = postOpAttr; |
| this.tbytes = tbytes; |
| this.fbytes = fbytes; |
| this.abytes = abytes; |
| this.tfiles = tfiles; |
| this.ffiles = ffiles; |
| this.afiles = afiles; |
| this.invarsec = invarsec; |
| } |
| |
| public static FSSTAT3Response deserialize(XDR xdr) { |
| int status = xdr.readInt(); |
| xdr.readBoolean(); |
| Nfs3FileAttributes postOpAttr = Nfs3FileAttributes.deserialize(xdr); |
| long tbytes = 0; |
| long fbytes = 0; |
| long abytes = 0; |
| long tfiles = 0; |
| long ffiles = 0; |
| long afiles = 0; |
| int invarsec = 0; |
| |
| if (status == Nfs3Status.NFS3_OK) { |
| tbytes = xdr.readHyper(); |
| fbytes = xdr.readHyper(); |
| abytes = xdr.readHyper(); |
| tfiles = xdr.readHyper(); |
| ffiles = xdr.readHyper(); |
| afiles = xdr.readHyper(); |
| invarsec = xdr.readInt(); |
| } |
| return new FSSTAT3Response(status, postOpAttr, tbytes, fbytes, abytes, |
| tfiles, ffiles, afiles, invarsec); |
| } |
| |
| @Override |
| public XDR serialize(XDR out, int xid, Verifier verifier) { |
| super.serialize(out, xid, verifier); |
| out.writeBoolean(true); |
| if (postOpAttr == null) { |
| postOpAttr = new Nfs3FileAttributes(); |
| } |
| postOpAttr.serialize(out); |
| |
| if (getStatus() == Nfs3Status.NFS3_OK) { |
| out.writeLongAsHyper(tbytes); |
| out.writeLongAsHyper(fbytes); |
| out.writeLongAsHyper(abytes); |
| out.writeLongAsHyper(tfiles); |
| out.writeLongAsHyper(ffiles); |
| out.writeLongAsHyper(afiles); |
| out.writeInt(invarsec); |
| } |
| return out; |
| |
| } |
| } |