/*
 *  Copyright 1999-2021 Alibaba Group Holding Ltd.
 *
 *  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 com.alibaba.csp.sentinel.metric.exporter;

/**
 * {@link MetricExporter} work on export metric to target monitor.
 * you can implement your export ways by this class.
 *
 * @author chenglu
 * @date 2021-07-01 21:16
 */
public interface MetricExporter {
    
    /**
     * start the {@link MetricExporter}.
     *
     * @throws Exception start exception.
     */
    void start() throws Exception;
    
    /**
     * export the data to target monitor by the implement.
     *
     * @throws Exception export exception.
     */
    void export() throws Exception;
    
    /**
     * shutdown the {@link MetricExporter}.
     *
     * @throws Exception shutdown exception.
     */
    void shutdown() throws Exception;
}
