| /* |
| * 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.kafka.tools; |
| |
| import org.apache.kafka.common.Metric; |
| import org.apache.kafka.common.MetricName; |
| |
| import java.util.Map; |
| import java.util.TreeMap; |
| |
| public class ToolsUtils { |
| |
| /** |
| * print out the metrics in alphabetical order |
| * @param metrics the metrics to be printed out |
| */ |
| public static void printMetrics(Map<MetricName, ? extends Metric> metrics) { |
| if (metrics != null && !metrics.isEmpty()) { |
| int maxLengthOfDisplayName = 0; |
| TreeMap<String, Object> sortedMetrics = new TreeMap<>(); |
| for (Metric metric : metrics.values()) { |
| MetricName mName = metric.metricName(); |
| String mergedName = mName.group() + ":" + mName.name() + ":" + mName.tags(); |
| maxLengthOfDisplayName = maxLengthOfDisplayName < mergedName.length() ? mergedName.length() : maxLengthOfDisplayName; |
| sortedMetrics.put(mergedName, metric.metricValue()); |
| } |
| String doubleOutputFormat = "%-" + maxLengthOfDisplayName + "s : %.3f"; |
| String defaultOutputFormat = "%-" + maxLengthOfDisplayName + "s : %s"; |
| System.out.println(String.format("\n%-" + maxLengthOfDisplayName + "s %s", "Metric Name", "Value")); |
| |
| for (Map.Entry<String, Object> entry : sortedMetrics.entrySet()) { |
| String outputFormat; |
| if (entry.getValue() instanceof Double) |
| outputFormat = doubleOutputFormat; |
| else |
| outputFormat = defaultOutputFormat; |
| System.out.println(String.format(outputFormat, entry.getKey(), entry.getValue())); |
| } |
| } |
| } |
| } |