/**
    * Copyright 2005-2016 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.ksb.service.impl;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import javax.xml.namespace.QName;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.ksb.service.BasicAuthenticationConnectionCredentials;
  import org.kuali.rice.ksb.service.BasicAuthenticationCredentials;
  import org.kuali.rice.ksb.service.BasicAuthenticationService;
  
  /**
   * Implements the BasicAuthenticationService
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   * @see org.kuali.rice.ksb.service.BasicAuthenticationService
   */
  
  public class BasicAuthenticationServiceImpl implements BasicAuthenticationService {
  
      private Map<QName, List<BasicAuthenticationCredentials>> serviceCredentialsMap;
      private Map<QName, BasicAuthenticationConnectionCredentials> connectionCredentialsMap;
  
      /**
       * Constructs BasicAuthenticationServiceImpl with a serviceCredentialsMap and a connectionCredentialsMap
       */
      public BasicAuthenticationServiceImpl() {
          this.serviceCredentialsMap = Collections.synchronizedMap(
                  new HashMap<QName, List<BasicAuthenticationCredentials>>());
          this.connectionCredentialsMap = Collections.synchronizedMap(
                  new HashMap<QName, BasicAuthenticationConnectionCredentials>());
      }
  
      public boolean checkServiceAuthentication(String serviceNameSpaceURI, QName serviceName, String username,
              String password) {
          List<BasicAuthenticationCredentials> credentialsList = serviceCredentialsMap.get(serviceName);
          if (credentialsList != null) {
              synchronized (credentialsList) {
                  for (BasicAuthenticationCredentials credentials : credentialsList) {
                      if (StringUtils.equals(username, credentials.getUsername()) && StringUtils.equals(
                              serviceNameSpaceURI, credentials.getServiceNameSpaceURI())) {
                          return StringUtils.equals(password, credentials.getPassword());
                      }
                  }
              }
          }
          return false;
      }
  
      public String getPasswordForService(String serviceNameSpaceURI, QName serviceName, String username) {
          List<BasicAuthenticationCredentials> credentialsList = serviceCredentialsMap.get(serviceName);
          if (credentialsList != null) {
              synchronized (credentialsList) {
                  for (BasicAuthenticationCredentials credentials : credentialsList) {
                      if (StringUtils.equals(username, credentials.getUsername()) && StringUtils.equals(
                              serviceNameSpaceURI, credentials.getServiceNameSpaceURI())) {
                          return credentials.getPassword();
                      }
                  }
              }
          }
          return null;
      }
  
      public BasicAuthenticationConnectionCredentials getConnectionCredentials(String serviceNameSpaceURI,
              String serviceName) {
          return connectionCredentialsMap.get(new QName(serviceNameSpaceURI, serviceName));
      }
  
      public void registerServiceCredentials(BasicAuthenticationCredentials credentials) {
          synchronized (serviceCredentialsMap) {
              QName serviceName = new QName(credentials.getServiceNameSpaceURI(), credentials.getLocalServiceName());
              List<BasicAuthenticationCredentials> credentialsList = serviceCredentialsMap.get(serviceName);
              if (credentialsList == null) {
                  credentialsList = Collections.synchronizedList(new ArrayList<BasicAuthenticationCredentials>());
                  serviceCredentialsMap.put(serviceName, credentialsList);
              }
              credentialsList.add(credentials);
          }
      }
 
     public void registerConnectionCredentials(BasicAuthenticationConnectionCredentials credentials) {
         synchronized (connectionCredentialsMap) {
             connectionCredentialsMap.put(new QName(credentials.getServiceNameSpaceURI(),
                     credentials.getLocalServiceName()), credentials);
         }
     }
 
 }