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/*
 * Copyright 2014 Stormpath, Inc.
 *
 * 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 com.stormpath.sdk.client;

import com.stormpath.sdk.lang.Assert;

/**
 * Enumeration that defines the available HTTP authentication schemes to be used when communicating with the Stormpath API server.
 *


 * The Authentication Scheme setting is helpful in cases where the code is run in a platform where the header information for
 * outgoing HTTP requests is modified and thus causing communication issues. For example, for Google App Engine you
 * need to set {@link AuthenticationScheme#BASIC} in order for your code to properly communicate with Stormpath API server.
 * 
 * There are currently two authentication schemes available: HTTP
 * Basic Authentication and Digest Authentication
 *
 * @since 0.9.3
 */
public enum AuthenticationScheme {

    BASIC("com.stormpath.sdk.impl.http.authc.BasicRequestAuthenticator"), //HTTP Basic Authentication
    SAUTHC1("com.stormpath.sdk.impl.http.authc.SAuthc1RequestAuthenticator"); //Digest Authentication

    private final String requestAuthenticatorClassName;

    private AuthenticationScheme(String requestAuthenticatorClassName) {
        Assert.notNull(requestAuthenticatorClassName, "requestAuthenticatorClassName cannot be null");
        this.requestAuthenticatorClassName = requestAuthenticatorClassName;
    }

    public String getRequestAuthenticatorClassName() {
        return this.requestAuthenticatorClassName;
    }
}