/*
    * Copyright 2007-2008 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.ole.sys.context;
  
  import java.io.IOException;
  import java.util.Properties;
  
  import org.kuali.rice.core.api.config.property.Config;
  import org.kuali.rice.core.api.config.property.ConfigContext;
  import org.kuali.rice.core.impl.config.property.ConfigLogger;
  import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
  
  /**
   * Configures a property placeholder in Spring which will allow access to the properties configured in the workflow configuration.
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class ConfigPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer {
      protected static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ConfigPropertyPlaceholderConfigurer.class);
  
      public ConfigPropertyPlaceholderConfigurer() {
          setSystemPropertiesMode(PropertyPlaceholderConfigurer.SYSTEM_PROPERTIES_MODE_OVERRIDE);
      }
  
      @Override
      protected void loadProperties(Properties props) throws IOException {
          // perform standard property resource file loading
          super.loadProperties(props);
          // put the properties into the Rice configuration context
          ConfigContext.getCurrentContextConfig().putProperties(props);
          // load the Rice properties
          if ( LOG.isDebugEnabled() ) {
              Config config = ConfigContext.getCurrentContextConfig();
              if (config != null) {
                  LOG.debug("Replacing parameters in Spring using config:\r\n" + config);
                  ConfigLogger.logConfig(config);
              }
          }
      }
  }