| /** |
| * 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.ambari.metrics.core.loadsimulator.net; |
| |
| import java.io.PrintStream; |
| |
| /** |
| * StdOutMetricsSender dumps metrics to defined PrintStream out. It is useful for testing. |
| */ |
| public class StdOutMetricsSender implements MetricsSender { |
| public final PrintStream out; |
| private String metricsHostName; |
| |
| /** |
| * Creates new StdOutMetricsSender with specified hostname (only used in messages) and sends output to System.out |
| * |
| * @param metricsHostName a name used in printed messages |
| */ |
| public StdOutMetricsSender(String metricsHostName) { |
| this(metricsHostName, System.out); |
| } |
| |
| /** |
| * Creates new StdOutMetricsSender with specified hostname (only used in messages) and PrintStream which is used as |
| * an output. |
| * |
| * @param metricsHostName a name used in printed messages |
| * @param out PrintStream that the Sender will write to, can be System.out |
| */ |
| public StdOutMetricsSender(String metricsHostName, PrintStream out) { |
| this.metricsHostName = metricsHostName; |
| this.out = out; |
| } |
| |
| @Override |
| public String pushMetrics(String payload) { |
| out.println("Sending to " + metricsHostName + ": " + payload); |
| |
| return "OK"; |
| } |
| } |