Kurukshetran

#! /bin/sh

# Set up a default search path
PATH="/usr/bin:/bin"

CURL=`which curl`
if [ -z "$CURL" ]; then
  echo "curl not found"
  exit 1
fi

Kurukshetran

#Replace localhost with your servername
#Change username and password accordingly
#Alert can be applied on JVM Heap and Queue parameters
#Alert format is 
# param=Name of parameter on whose value you want to put alert
# thresholdVal= Value againsts which current value of param will be evaluated as per condition
# condition= denotes how to compare thresholdVal and current value of parameter.
#         Possible values are as below:
#         lt - Alert will be raised if current value is less than thresholdVal
#         gt - Alert will be raised if current value is greater than thresholdVal

Kurukshetran

// Set your variables below
SHEET_NAME="MC-Import-Data"
URL="https://coinmarketcap.com/currencies/views/all/"

// Create a trigger to refresh every 5 minutes
function myFunctionA() {
  ScriptApp.newTrigger("getData")
  .timeBased()
 .everyMinutes(5)

Kurukshetran

Motivation

Integrate JMH (Java Microbenchmarking Harness) with Spring (Boot) and make developing and running benchmarks as easy and convinent as writing tests.

Idea

Wrap the necessary JMH boilerplate code within JUnit to benefit from all the existing test infrastructure Spring (Boot) provides. It should be as easy and convinent to write benchmarks as it is to write tests.

TL;DR;

Kurukshetran

import org.apache.http.HeaderElement;
import org.apache.http.HeaderElementIterator;
import org.apache.http.HttpResponse;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.ConnectionKeepAliveStrategy;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;

Kurukshetran

/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *

Kurukshetran

Thread Pools

Thread pools on the JVM should usually be divided into the following three categories:

1. CPU-bound
2. Blocking IO
3. Non-blocking IO polling

Each of these categories has a different optimal configuration and usage pattern.

Kurukshetran

1. Create a scheduler to add new routes
@Scheduled(fixedRate = 300000)
    public void updateHttpRoutes() {
        Set<HttpRoute> routes = poolingHttpClientConnectionManager.getRoutes();
        for (HttpRoute route : routes) {
            httpMetricsTracker.add(route, poolingHttpClientConnectionManager);
        }
    }

Kurukshetran

import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class ClientHttpPoolConfiguration {

Kurukshetran

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ApacheLogParser {