Java example source code file (UsernamePasswordCredentials.java)

This example source code file (UsernamePasswordCredentials.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java tags/keywords

basicuserprincipal, illegalargumentexception, immutable, override, security, string, username:password, usernamepasswordcredentials

The UsernamePasswordCredentials.java example source code

/*
 * ====================================================================
 *
 *  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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.auth;

import java.security.Principal;

import org.apache.http.annotation.Immutable;

import org.apache.http.util.LangUtils;

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

    private final BasicUserPrincipal principal;
    private final String password;
    
    /**
     * The constructor with the username and password combined string argument.
     *
     * @param usernamePassword the username:password formed string
     * @see #toString
     */
    public UsernamePasswordCredentials(String usernamePassword) {
        super();
        if (usernamePassword == null) {
            throw new IllegalArgumentException("Username:password string may not be null");            
        }
        int atColon = usernamePassword.indexOf(':');
        if (atColon >= 0) {
            this.principal = new BasicUserPrincipal(usernamePassword.substring(0, atColon));
            this.password = usernamePassword.substring(atColon + 1);
        } else {
            this.principal = new BasicUserPrincipal(usernamePassword);
            this.password = null;
        }
    }


    /**
     * The constructor with the username and password arguments.
     *
     * @param userName the user name
     * @param password the password
     */
    public UsernamePasswordCredentials(String userName, String password) {
        super();
        if (userName == null) {
            throw new IllegalArgumentException("Username may not be null");            
        }
        this.principal = new BasicUserPrincipal(userName);
        this.password = password;
    }

    public Principal getUserPrincipal() {
        return this.principal;
    }

    public String getUserName() {
        return this.principal.getName();
    }

    public String getPassword() {
        return password;
    }

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

    @Override
    public boolean equals(Object o) {
        if (o == null) return false;
        if (this == o) return true;
        if (o instanceof UsernamePasswordCredentials) {
            UsernamePasswordCredentials that = (UsernamePasswordCredentials) o;
            if (LangUtils.equals(this.principal, that.principal)) {
                return true;
            }
        }
        return false;
    }

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

}