/*
    * Copyright 2006-2011 the original author or authors.
    *
    * 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
    *
    * https://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.springframework.security.oauth2.config.xml;
  
  import org.springframework.beans.factory.FactoryBean;
  import org.springframework.security.oauth2.client.OAuth2ClientContext;
  import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
  import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsResourceDetails;
  
  /**
   * Convenience factory for OAuth2ClientContext that is aware of the need for a different context if the resource is for a
   * client credentials grant. Client credentials grants will always have the same credentials for all requests, so
   * there's no point protecting the context with session and request scopes.
   * 
   * @author Dave Syer
   * 
   */
  public class OAuth2ClientContextFactoryBean implements FactoryBean<OAuth2ClientContext> {
  
  	private OAuth2ProtectedResourceDetails resource;
  
  	private OAuth2ClientContext bareContext;
  
  	private OAuth2ClientContext scopedContext;
  	
  	/**
  	 * @param resource the resource to set
  	 */
  	public void setResource(OAuth2ProtectedResourceDetails resource) {
  		this.resource = resource;
  	}
  
  	/**
  	 * @param scopedContext the scopedContext to set
  	 */
  	public void setScopedContext(OAuth2ClientContext scopedContext) {
  		this.scopedContext = scopedContext;
  	}
  
  	/**
  	 * @param bareContext the bareContext to set
  	 */
  	public void setBareContext(OAuth2ClientContext bareContext) {
  		this.bareContext = bareContext;
  	}
  
  	public OAuth2ClientContext getObject() throws Exception {
  		if (resource instanceof ClientCredentialsResourceDetails) {
  			return bareContext;
  		}
  		return scopedContext;
  	}
  
  	public Class<?> getObjectType() {
  		return OAuth2ClientContext.class;
  	}
  
  	public boolean isSingleton() {
  		return true;
  	}
  
  }