Github user cestella commented on a diff in the pull request:

    https://github.com/apache/metron/pull/958#discussion_r174186597
  
    --- Diff: 
metron-contrib/metron-performance/src/main/java/org/apache/metron/performance/load/monitor/writers/ConsoleWriter.java
 ---
    @@ -0,0 +1,67 @@
    +/**
    + * 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.metron.performance.load.monitor.writers;
    +
    +import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
    +import org.apache.metron.performance.load.monitor.Results;
    +
    +import java.text.DateFormat;
    +import java.text.SimpleDateFormat;
    +import java.util.ArrayList;
    +import java.util.Date;
    +import java.util.List;
    +import java.util.function.Consumer;
    +
    +public class ConsoleWriter implements Consumer<Writable> {
    +
    +  private String getSummary(DescriptiveStatistics stats) {
    +    return String.format("Mean: %d, Std Dev: %d", (int)stats.getMean(), 
(int)Math.sqrt(stats.getVariance()));
    +  }
    +
    +  @Override
    +  public void accept(Writable writable) {
    +    List<String> parts = new ArrayList<>();
    +    Date date = writable.getDate();
    +    for(Results r : writable.getResults()) {
    +      Long eps = r.getEps();
    +      if(eps != null) {
    +        String part = String.format(r.getFormat(), eps);
    +        if (r.getHistory().isPresent()) {
    +          part += " (" + getSummary(r.getHistory().get()) + ")";
    +        }
    +        parts.add(part);
    +      }
    +    }
    +    if(date != null) {
    +      DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
    +      String header = dateFormat.format(date) + " - ";
    +      String emptyHeader = "";
    +      for (int i = 0; i < header.length(); ++i) {
    --- End diff --
    
    done


---

Reply via email to