Example usage for com.google.common.util.concurrent AtomicLongMap get

Introduction

In this page you can find the example usage for com.google.common.util.concurrent AtomicLongMap get.

Prototype

public long get(K key) 

Source Link

Document

Returns the value associated with key , or zero if there is no value associated with key .

Usage

From source file:co.mitro.core.util.RpcLogReader.java

public static void main(String[] args) throws IOException {
    AtomicLongMap<String> counter = AtomicLongMap.<String>create();
    Map<String, Span> txnLength = new HashMap<>();
    Span duration = new Span();

    for (int i = 0; i < args.length; ++i) {
        String filename = args[i];
        System.err.println("Reading file: " + filename);
        JsonRecordReader rr = JsonRecordReader.MakeFromFilename(filename);
        JsonRecordReader.JsonLog log;/*from  w  w w  .  j  a va 2s  .co  m*/
        try {
            while (null != (log = rr.readJson())) {
                counter.incrementAndGet(log.metadata.endpoint);
                duration.addTime(log.metadata.timestamp);
                if (log.metadata.endpoint.endsWith("BeignTransaction")
                        || log.payload.implicitBeginTransaction) {
                    txnLength.put((String) ((Map) log.metadata.response).get("transactionId"),
                            new Span(log.metadata.timestamp));
                } else if (!Strings.isNullOrEmpty(log.payload.transactionId)) {
                    txnLength.get(log.payload.transactionId).addTime(log.metadata.timestamp);
                }
            }
        } catch (EOFException e) {
            System.err.println("unexpected end of file; skipping");
        }
    }
    System.out.println("total duration: " + duration.duration());
    for (String k : counter.asMap().keySet()) {
        System.out.println(k + ": " + counter.get(k));
    }
    List<Long> times = new ArrayList<>();

    for (Span s : txnLength.values()) {
        times.add(s.duration());
    }
    Collections.sort(times);
    double meanTime = 0;
    for (Long l : times) {
        meanTime += l;
    }

    meanTime /= txnLength.size();
    double stdDev = 0;
    for (Long l : times) {
        stdDev += Math.pow((l - meanTime), 2);
    }
    stdDev /= txnLength.size();
    stdDev = Math.pow(stdDev, 0.5);

    // percentiles
    long PERCENTILES = 10;
    for (int i = 0; i <= PERCENTILES; i += 1) {
        System.out.println("percentile " + i * PERCENTILES + ": "
                + times.get((int) ((times.size() - 1) * i / PERCENTILES)));
    }

    System.out.println("write txns:");
    System.out.println("num: " + txnLength.size() + ", mean:" + meanTime + ", stddev:" + stdDev);

}

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