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A Java NIO file system provider for HDFS

There is a newer version: 1.0.3

/*
 * Copyright 2016 Damien Carol 
 *
 * Licensed 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 hdfs.jsr203;

import java.nio.file.attribute.UserPrincipal;

public class HadoopUserPrincipal implements UserPrincipal {

    private org.apache.hadoop.security.UserGroupInformation ugi;
    private final String name;
    // private HadoopFileSystem hdfs;

    public HadoopUserPrincipal(HadoopFileSystem hdfs, String name) {
        this.ugi = org.apache.hadoop.security.UserGroupInformation.createRemoteUser(name);
        // this.hdfs = hdfs;
        this.name = name;
    }

    @Override
    public String getName() {
        return this.ugi.getUserName();
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        } else if (obj == null || getClass() != obj.getClass()) {
            return false;
        } else {
            return this.ugi == ((HadoopUserPrincipal) obj).ugi;
        }
    }

    @Override
    public int hashCode() {
        int hash = 948;
        hash = hash * ugi.hashCode();
        return hash;
    }

    @Override
    protected Object clone() throws CloneNotSupportedException {
        return new HadoopUserPrincipal(null, name);
    }
}