com.cloudera.hadoop.hdfs.nfs.nfs4.handlers.SETATTRHandler.java Source code

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Here is the source code for com.cloudera.hadoop.hdfs.nfs.nfs4.handlers.SETATTRHandler.java

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/**
 * Copyright 2011 The Apache Software Foundation
 *
 * 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 com.cloudera.hadoop.hdfs.nfs.nfs4.handlers;

import static com.cloudera.hadoop.hdfs.nfs.nfs4.Constants.*;

import java.io.IOException;

import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import com.cloudera.hadoop.hdfs.nfs.nfs4.Bitmap;
import com.cloudera.hadoop.hdfs.nfs.nfs4.NFS4Exception;
import com.cloudera.hadoop.hdfs.nfs.nfs4.NFS4Handler;
import com.cloudera.hadoop.hdfs.nfs.nfs4.Session;
import com.cloudera.hadoop.hdfs.nfs.nfs4.attrs.Attribute;
import com.cloudera.hadoop.hdfs.nfs.nfs4.requests.SETATTRRequest;
import com.cloudera.hadoop.hdfs.nfs.nfs4.responses.SETATTRResponse;
import com.google.common.collect.ImmutableMap;
import org.apache.log4j.Logger;

public class SETATTRHandler extends OperationRequestHandler<SETATTRRequest, SETATTRResponse> {

    protected static final Logger LOGGER = Logger.getLogger(SETATTRHandler.class);

    @Override
    protected SETATTRResponse doHandle(NFS4Handler server, Session session, SETATTRRequest request)
            throws NFS4Exception, IOException {
        if (session.getCurrentFileHandle() == null) {
            throw new NFS4Exception(NFS4ERR_NOFILEHANDLE);
        }
        Path path = server.getPath(session.getCurrentFileHandle());
        FileSystem fs = session.getFileSystem();
        FileStatus fileStatus = fs.getFileStatus(path);
        ImmutableMap<Integer, Attribute> requestAttrs = request.getAttrValues();
        Bitmap responseAttrs = Attribute.setAttrs(server, session, request.getAttrs(), requestAttrs, fs, fileStatus,
                request.getStateID());
        SETATTRResponse response = createResponse();
        response.setStatus(NFS4_OK);
        response.setAttrs(responseAttrs);
        return response;
    }

    @Override
    protected SETATTRResponse createResponse() {
        return new SETATTRResponse();
    }
}