package org.kuali.ole;
   
   
   import org.slf4j.Logger;
   import org.slf4j.LoggerFactory;
   
   import java.io.File;
   import java.io.FileInputStream;
   import java.io.IOException;
  import java.util.Properties;
  
  /**
   * Created by IntelliJ IDEA.
   * User: pvsubrah
   * Date: 4/4/12
   * Time: 3:37 PM
   * To change this template use File | Settings | File Templates.
   */
  public class PropertyUtil {
      private static Logger LOG = LoggerFactory.getLogger(PropertyUtil.class);
      private static PropertyUtil propertyUtil = new PropertyUtil();
      private String OLE_SRU_PROPERTIES_FILE_NAME = "OleSRUResource.properties";
      private String environment;
  
      public static PropertyUtil getPropertyUtil() {
          return propertyUtil;
      }
  
      private Properties props;
  
      private PropertyUtil() {
          props = new Properties();
          try {
              props.load(getClass().getResourceAsStream(OLE_SRU_PROPERTIES_FILE_NAME));
          } catch (Exception e) {
              LOG.error("Unable to load the project.properties file" + e.getMessage());
              LOG.info("Going to attempt to load from the locations set for env.properties.home");
          }
          String propsDir = System.getProperty("env.properties.home");
          String fileSeparator = System.getProperty("file.separator");
          File userPropsFile = new File(propsDir + fileSeparator + OLE_SRU_PROPERTIES_FILE_NAME);
          if (userPropsFile.exists()) {
              try {
                  props.load(new FileInputStream(userPropsFile));
              } catch (IOException e) {
                  LOG.error(e.getMessage());
              }
          }
      }
  
      public String getProperty(String key) {
          environment = System.getProperty("app.environment");
          String propValue=props.getProperty(environment+"."+key);
          if(propValue==null || "".equals(propValue))
              propValue= props.getProperty(key);
          return propValue;
      }
  
  }