/**
    * Copyright 2010-2012 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.common.util.property.processor;
  
  import java.util.Properties;
  
  import org.kuali.common.util.PropertyUtils;
  import org.kuali.common.util.property.Constants;
  import org.kuali.common.util.property.GlobalPropertiesMode;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.util.PropertyPlaceholderHelper;
  
  public class ResolvePlaceholdersProcessor implements PropertyProcessor {
  
  	private static final Logger logger = LoggerFactory.getLogger(ResolvePlaceholdersProcessor.class);
  
  	PropertyPlaceholderHelper helper = Constants.DEFAULT_PROPERTY_PLACEHOLDER_HELPER;
  	GlobalPropertiesMode globalPropertiesMode = Constants.DEFAULT_GLOBAL_PROPERTIES_MODE;
  
  	public ResolvePlaceholdersProcessor() {
  		this(Constants.DEFAULT_PROPERTY_PLACEHOLDER_HELPER);
  	}
  
  	public ResolvePlaceholdersProcessor(PropertyPlaceholderHelper helper) {
  		this(helper, Constants.DEFAULT_GLOBAL_PROPERTIES_MODE);
  	}
  
  	public ResolvePlaceholdersProcessor(PropertyPlaceholderHelper helper, GlobalPropertiesMode globalPropertiesMode) {
  		super();
  		this.helper = helper;
  		this.globalPropertiesMode = globalPropertiesMode;
  	}
  
  	@Override
  	public void process(Properties properties) {
  		Properties resolvedProperties = PropertyUtils.getResolvedProperties(properties, helper, globalPropertiesMode);
  		if (resolvedProperties.size() > 0) {
  			logger.debug("Resolved {} property values", resolvedProperties.size());
  			properties.putAll(resolvedProperties);
  		}
  	}
  
  	public PropertyPlaceholderHelper getHelper() {
  		return helper;
  	}
  
  	public void setHelper(PropertyPlaceholderHelper helper) {
  		this.helper = helper;
  	}
  
  	public GlobalPropertiesMode getGlobalPropertiesMode() {
  		return globalPropertiesMode;
  	}
  
  	public void setGlobalPropertiesMode(GlobalPropertiesMode globalPropertiesMode) {
  		this.globalPropertiesMode = globalPropertiesMode;
  	}
  }