| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.nemo.runtime.executor; |
| |
| import org.apache.reef.tang.annotations.DefaultImplementation; |
| |
| /** |
| * Interface for metric sender. |
| */ |
| @DefaultImplementation(MetricManagerWorker.class) |
| public interface MetricMessageSender extends AutoCloseable { |
| |
| /** |
| * Send metric to master. |
| * |
| * @param metricType type of the metric |
| * @param metricId id of the metric |
| * @param metricField field of the metric |
| * @param metricValue value of the metric which is serialized |
| */ |
| void send(String metricType, String metricId, String metricField, byte[] metricValue); |
| |
| /** |
| * Flush all metric inside of the queue. |
| */ |
| void flush(); |
| |
| /** |
| * Flush the metric queue and close the metric dispatch. |
| */ |
| void close(); |
| } |