package org.kuali.common.util.properties;
   
   import java.util.Properties;
   
   import org.kuali.common.util.Assert;
   import org.kuali.common.util.LocationUtils;
   import org.kuali.common.util.ModeUtils;
   import org.kuali.common.util.PropertyUtils;
   
  public final class LocationLoader implements PropertiesLoader {
  
  	private final String value;
  	private final Location location;
  
  	public LocationLoader(Location location) {
  		this(location, location.getValue());
  	}
  
  	public LocationLoader(Location location, String value) {
  		Assert.noNulls(location);
  		Assert.noBlanks(value);
  		this.value = value;
  		this.location = location;
  	}
  
  	@Override
  	public Properties load() {
  		if (!LocationUtils.exists(value)) {
  			// Take appropriate action for missing locations (ignore, inform, warn, or error out)
  			ModeUtils.validate(location.getMissingMode(), "Non-existent location [" + value + "]");
  			return PropertyUtils.EMPTY;
  		} else {
  			return PropertyUtils.load(value, location.getEncoding(), location.getFormat());
  		}
  	}
  
  	public String getValue() {
  		return value;
  	}
  
  	public Location getLocation() {
  		return location;
  	}
  
  }