/*
    * Copyright 2010 James Pether Sörling
    *
    * 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.
   *
   *	$Id$
   *  $HeadURL$
  */
  
  package com.hack23.cia.service.impl;
  
  import java.io.Serializable;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.Future;
  
  import org.springframework.beans.BeansException;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.ApplicationContextAware;
  import org.springframework.scheduling.annotation.Async;
  import org.springframework.scheduling.annotation.AsyncResult;
  import org.springframework.security.access.annotation.Secured;
  import org.springframework.security.authentication.AuthenticationManager;
  import org.springframework.stereotype.Service;
  
  import com.hack23.cia.model.internal.application.data.committee.impl.ViewRiksdagenCommittee;
  import com.hack23.cia.service.api.AgentContainer;
  import com.hack23.cia.service.api.ApplicationManager;
  import com.hack23.cia.service.api.DataContainer;
  import com.hack23.cia.service.api.DataSummary;
  import com.hack23.cia.service.api.action.common.ServiceRequest;
  import com.hack23.cia.service.api.action.common.ServiceResponse;
  import com.hack23.cia.service.impl.action.common.BusinessService;
  
  /**
   * The Class ApplicationManagerImpl.
   */
  @Service("ApplicationManager")
  final class ApplicationManagerImpl implements ApplicationManager, ApplicationContextAware{
  
  	/** The authentication manager. */
  	@Autowired
  	@Qualifier("org.springframework.security.authenticationManager")
  	private AuthenticationManager authenticationManager;
  
  	/** The data agent container. */
  	@Autowired
  	@Qualifier("DataAgentContainer")
  	private AgentContainer dataAgentContainer;
  
  	/** The data summary data container. */
  	@Autowired
  	@Qualifier("DataSummaryDataContainer")
  	private DataContainer<DataSummary, String> dataSummaryDataContainer;
  
  	/** The view riksdagen committee data container. */
  	@Autowired
  	@Qualifier("ViewRiksdagenCommitteeDataContainer")
  	private DataContainer<ViewRiksdagenCommittee,String> viewRiksdagenCommitteeDataContainer;
  
  	/** The view data data container factory. */
  	@Autowired
  	private ViewDataDataContainerFactory viewDataDataContainerFactory;
  
  	/** The service request business service map. */
  	private final Map<Class<? extends ServiceRequest>, BusinessService<? extends ServiceRequest,? extends ServiceResponse>> serviceRequestBusinessServiceMap = new ConcurrentHashMap<>();
  
  
  	/**
  	 * Instantiates a new application manager impl.
  	 */
  	public ApplicationManagerImpl() {
  		super();
  	}
  
  
  	@Secured({"ROLE_ADMIN"})
  	@Override
  	public AgentContainer getAgentContainer() {
  		return dataAgentContainer;
  	}
  
  	@Secured({ "ROLE_ANONYMOUS","ROLE_USER", "ROLE_ADMIN" })
  	@Override
  	public <T extends Serializable, V extends Serializable> DataContainer<T, V> getDataContainer(
  			final Class<T> dataObject) {
 
 		DataContainer<T, V> result;
 
 		if (dataObject.equals(DataSummary.class)) {
 			result= (DataContainer<T, V>) dataSummaryDataContainer;
 		} else if (dataObject.equals(ViewRiksdagenCommittee.class)) {
 			result= (DataContainer<T, V>) viewRiksdagenCommitteeDataContainer;
 		} else {
 			result= viewDataDataContainerFactory.createDataContainer(dataObject);
 		}
 
 		return result;
 	}
 
 	@Secured({"ROLE_ANONYMOUS","ROLE_USER", "ROLE_ADMIN" })
 	@Override
 	public ServiceResponse service(final ServiceRequest serviceRequest) {
 		final BusinessService businessService= serviceRequestBusinessServiceMap.get(serviceRequest.getClass());
 
 		ServiceResponse serviceResponse = null;
 
 		if (businessService != null) {
 			serviceResponse = businessService.processService(serviceRequest);
 		}
 
 		return serviceResponse;
 	}
 
     @Async("SecureTaskExecutor")
     @Secured({"ROLE_ANONYMOUS","ROLE_USER", "ROLE_ADMIN" })
     @Override
 	public Future<ServiceResponse> asyncService(final ServiceRequest serviceRequest) {
 		final BusinessService businessService= serviceRequestBusinessServiceMap.get(serviceRequest.getClass());
 
 		ServiceResponse serviceResponse = null;
 
 		if (businessService != null) {
 			serviceResponse = businessService.processService(serviceRequest);
 		}
 
 		return new AsyncResult<>(serviceResponse);
 	}
 
 
 	@Override
 	public void setApplicationContext(final ApplicationContext applicationContext)
 			throws BeansException {
 		final Map<String, BusinessService> beansOfType = applicationContext.getBeansOfType(BusinessService.class);
 
 		for (final Entry<String, BusinessService> entry : beansOfType.entrySet()) {
 			serviceRequestBusinessServiceMap.put(entry.getValue().getSupportedService(), entry.getValue());
 		}
 	}
 
 }