/**
 * 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.storm.security.auth;

import java.security.Principal;

/**
 * A Principal that represents a user.
 */
public class SingleUserPrincipal implements Principal {

    private final String userName;

    public SingleUserPrincipal(String userName) {
        this.userName = userName;
    }

    @Override
    public boolean equals(Object another) {
        return another instanceof SingleUserPrincipal && userName.equals(((SingleUserPrincipal) another).userName);
    }

    @Override
    public String getName() {
        return userName;
    }

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

    @Override
    public int hashCode() {
        return userName.hashCode();
    }
}