/*

  * Copyright 2007 The Kuali Foundation

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  *

  * 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.kuali.rice.core.security.credentials;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import org.kuali.rice.core.security.credentials.CredentialsSource.CredentialsType;

 import org.springframework.beans.factory.InitializingBean;

 /**

  * CredentialsSourceFactory constructs or returns an existing instance of a

  * CredentialsSource based on the type of Credentials requested.

  * <p>

  * It will return null if it cannot find or create an instance of the required

  * type.

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  * @since 0.9

  * 

  */

 public final class CredentialsSourceFactory implements InitializingBean {

         private final Log log = LogFactory.getLog(this.getClass());

         private List<CredentialsSource> credentialsSources;

         private Map<CredentialsType, CredentialsSource> credentialsSourcesByType = new HashMap<CredentialsType, CredentialsSource>();

         public CredentialsSource getCredentialsForType(

                         final CredentialsType credentialsType) {

                 return credentialsSourcesByType.get(credentialsType);

         }

         public void afterPropertiesSet() throws Exception {

                 if (credentialsSources != null) {

                         for (final CredentialsSource credentialsSource : this.credentialsSources) {

                                 this.credentialsSourcesByType.put(credentialsSource

                                                 .getSupportedCredentialsType(), credentialsSource);

                         }

                 } else {

                         log

                                         .warn("No CredentialsSources set.  No security will be provided on the bus.");

                 }

         }

         public void setCredentialsSources(

                         final List<CredentialsSource> credentialsSources) {

                 this.credentialsSources = credentialsSources;

         }

 }