org.apache.hadoop.gateway.util.PrincipalCredentials.java Source code

Introduction

Here is the source code for org.apache.hadoop.gateway.util.PrincipalCredentials.java

Source

/**
 * 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.gateway.util;

import java.io.Serializable;
import java.security.Principal;

import org.apache.http.annotation.Immutable;

import org.apache.http.auth.BasicUserPrincipal;
import org.apache.http.auth.Credentials;
import org.apache.http.util.LangUtils;

/**
 * Simple {@link Credentials} implementation based on a user name / password
 * pair.
 *
 * @since 4.0
 */
@Immutable
public class PrincipalCredentials implements Credentials, Serializable {

    private final Principal principal;

    /**
     * The constructor with the principal.
     */
    public PrincipalCredentials(Principal principal) {
        super();
        if (principal == null)
            throw new IllegalArgumentException("principal==null");
        this.principal = principal;
    }

    @Override
    public Principal getUserPrincipal() {
        return principal;
    }

    @Override
    public String getPassword() {
        return null;
    }

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

    @Override
    public boolean equals(Object object) {
        if (this == object)
            return true;
        if (object instanceof PrincipalCredentials) {
            PrincipalCredentials that = (PrincipalCredentials) object;
            if (this.principal.equals(that.principal)) {
                return true;
            }
        }
        return false;
    }

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

}