/*
* Copyright 2015-2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* 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.hawkular.alerts.api.services;
/**
* A interface used to share alerts properties across several components.
*
* @author Jay Shaughnessy
* @author Lucas Ponce
*/
public interface PropertiesService {
/**
* @param key of the property to retrieve
* @param defaultValue default value to return in case the property has not a value defined
* @return the value of the property
*/
String getProperty(String key, String defaultValue);
/**
* @param key of the property to retrieve
* @param envKey name of the environment variable used as an alternative way to define a property
* @param defaultValue default value to return in case the property has not a value defined
* @return the value of the property
*/
String getProperty(String key, String envKey, String defaultValue);
}