hitxiang

public class QuickfixjMessageJsonTransformer {
    private DataDictionary dataDictionary;
    public QuickfixjMessageJsonTransformer(){};
    public QuickfixjMessageJsonTransformer(DataDictionary dd) {
        this.dataDictionary = dd;
    }

    public String transform(Exchange exchange) {
        // camel message
        org.apache.camel.Message in = exchange.getIn();

hitxiang

#To be able to deploy the app as service in openshift we can follow various routes.

#I have follwed the binary build and deployment method..
https://access.redhat.com/documentation/en-us/red_hat_jboss_middleware_for_openshift/3/html/red_hat_java_s2i_for_openshift/get_started#source_to_image_s2i_build

#Other methods are also discussed in the recoommened guide above for being able to do deployment. for private source repository 
Image secret is need while doing s2i builds from the repo

#https://developers.redhat.com/blog/2017/02/23/getting-started-with-openshift-java-s2i/ provides other useful ways of deployment

hitxiang

package com.levelsbeyond;

import java.util.Date;
import java.util.concurrent.Callable;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * Thread Test

hitxiang

#!/bin/bash
# Copyright bitly, Aug 2011 
# written by Jehiah Czebotar

DATAFILE="/var/tmp/nagios_check_forkrate.dat"
VALID_INTERVAL=600

OK=0
WARNING=1
CRITICAL=2

hitxiang

URL schemes for iOS and Android (2/2)

Read the blog at http://fokkezb.nl/2013/09/20/url-schemes-for-ios-and-android-2/

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"""
Simple Linear Probabilistic Counters

Credit for idea goes to:
http://highscalability.com/blog/2012/4/5/big-data-counting-how-to-count-a-billion-distinct-objects-us.html
http://highlyscalable.wordpress.com/2012/05/01/probabilistic-structures-web-analytics-data-mining/

Installation:
    pip install smhasher
    pip install bitarray

hitxiang

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

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# DATA FRAME OPERATIONS IN R

# Create data frame
# A dataset is ~ table (list of vectors)
id <- c(1,2,3)
name <- c("John", "Kirk", "AJ")
age <- c(21,27,18)
employees <- data.frame(ID=id, Name=name, Age=age)
employees

hitxiang

Munin Passenger Plug-in Installation

Configure the passenger plug-ins according the the guide on http://www.alfajango.com/blog/how-to-monitor-your-railspassenger-app-with-munin/

NOTE: restart munin after implementing the following changes for Single-User RVM

sudo nano /etc/munin/plugin-conf.d/munin-node

[passenger_*]
user root

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server {
  root /var/www/example.com/static;
  server_name example.com;
  access_log /var/log/nginx/example.com.access.log;
  error_log /var/log/nginx/example.com.error.log;

  try_files /maintenance.html @proxy;

  location @proxy {
    proxy_pass http://127.0.0.1:10001;