com.cloudera.hadoop.hdfs.nfs.nfs4.attrs.OwnerHandler.java Source code

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Here is the source code for com.cloudera.hadoop.hdfs.nfs.nfs4.attrs.OwnerHandler.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.attrs;

import java.io.IOException;

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

import com.cloudera.hadoop.hdfs.nfs.NFSUtils;
import com.cloudera.hadoop.hdfs.nfs.nfs4.NFS4Handler;
import com.cloudera.hadoop.hdfs.nfs.nfs4.Session;
import com.cloudera.hadoop.hdfs.nfs.nfs4.StateID;

public class OwnerHandler extends AttributeHandler<Owner> {

    @Override
    public Owner get(NFS4Handler server, Session session, FileSystem fs, FileStatus fileStatus) {
        Owner owner = new Owner();
        String domain = NFSUtils.getDomain(session.getConfiguration(), session.getClientAddress());
        owner.setOwner(fileStatus.getOwner() + "@" + domain);
        return owner;
    }

    @Override
    public boolean set(NFS4Handler server, Session session, FileSystem fs, FileStatus fileStatus, StateID stateID,
            Owner attr) throws IOException {
        String user = removeDomain(attr.getOwner());
        if (fileStatus.getOwner().equals(user)) {
            fs.setOwner(fileStatus.getPath(), user, null);
            return true;
        }
        return false;
    }

    public static String removeDomain(String user) {
        int pos;
        if ((pos = user.indexOf('@')) > 0 && pos < user.length()) {
            return user.substring(pos + 1);
        }
        return user;
    }
}