/**
    * Copyright 2011 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.osedu.org/licenses/ECL-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.kuali.mobility.configparams.service;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import org.kuali.mobility.configparams.dao.ConfigParamDao;
  import org.kuali.mobility.configparams.entity.ConfigParam;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  
  import flexjson.JSONDeserializer;
  import flexjson.JSONSerializer;
  
  /**
   * Service to perform manipulation of configuration parameters
   * @author Kuali Mobility Team (moblitiy.collab@kuali.org)
   */
  @Service(value = "ConfigParamService")
  public class ConfigParamServiceImpl implements ConfigParamService {
  
  	private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ConfigParamServiceImpl.class);
  
  	@Autowired
  	private ConfigParamDao configParamDao;
  
  	@Transactional
  	public void deleteConfigParamById(Long id) {
  		configParamDao.deleteConfigParamById(id);
  	}
  
  	@Transactional
  	public List<ConfigParam> findAllConfigParam() { 
  		return configParamDao.findAllConfigParam();
  	}
  
  	@Transactional
  	public ConfigParam findConfigParamById(Long id) {
  		return configParamDao.findConfigParamById(id);
  	}
  
  	@Transactional
  	public ConfigParam findConfigParamByName(String name) {
  		return configParamDao.findConfigParamByName(name);
  	}
  
  	@Transactional(readOnly = true)
  	public String findValueByName(String name) {
  		ConfigParam configParam = findConfigParamByName(name);
  		String value = configParam != null ? configParam.getValue() : null;
  		return value != null ? value.trim() : "";
  	}
  
  	@Transactional
  	public Long saveConfigParam(ConfigParam configParam) {
  		return configParamDao.saveConfigParam(configParam);
  	}
  
  	public ConfigParam fromJsonToEntity(String json) {
  		return new JSONDeserializer<ConfigParam>().use(null, ConfigParam.class).deserialize(json);
  	}
  
  	public String toJson(Collection<ConfigParam> collection) {
  		return new JSONSerializer().exclude("*.class").serialize(collection);
  	}
  
  	public Collection<ConfigParam> fromJsonToCollection(String json) {
  		return new JSONDeserializer<List<ConfigParam>>().use(null, ArrayList.class).use("values", ConfigParam.class).deserialize(json);
  	}
  
  }