/**

  * Copyright 2005-2011 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.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.rice.core.api.config.property;

 import java.util.Map;

 /**

  * ConfigurationService is an abstraction of system configuration for KNS clients which provides methods for getting string

  * resources, including Kuali message resource strings.

  */

 public interface ConfigurationService {

     /**

      * Given a property name (key), returns the value associated with that key, or null if none is available.

      *

      * @param key

      * @return String associated with the given key

      * @throws IllegalArgumentException

      *                 if the key is null

      */

     String getPropertyValueAsString(String key);

     /**

      * Given a property name (key), returns the "booleanized" value associated with that key.

      *

      * true, yes, on, or 1 are translated into <b>true</b> - all other values result in <b>false</b>

      *

      * @param key

      * @return String associated with the given key

      * @throws IllegalArgumentException

      *                 if the key is null

      */

     boolean getPropertyValueAsBoolean(String key);

     /**

      * @return Properties instance containing all (key,value) pairs known to the service

      */

     Map<String, String> getAllProperties();

 }