avshabanov

Overview

The following cheats apply to PostgreSQL 9.4 on CentOS (and also RHEL and standard Amazon Linux on EC2 instances).

Install and init DB

sudo yum install postgresql94 postgresql94-docs postgresql94-server postgresql94-test postgresql94-contrib
sudo service postgresql94 initdb

avshabanov

# !/bin/bash

# Easy-to-use access to AWS EC2 - e.g. sshawsn.sh test 1
# hosts.txt - contains ec2 public DNS records

PEM_FILE=$HOME/opt/config/aws/$1.pem
if [ ! -f $PEM_FILE ]; then
    echo "Non-existent pem file: $PEM_FILE"
    exit -1
fi

avshabanov

'use strict';

describe('catalog service test', () => {

  pit('testing pure promise', () => {
    return new Promise((resolve) => {
      resolve("getting something");
    }).then(() => { expect(1).toBe(1); });
  });
});

avshabanov

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferStrategy;
import javax.swing.JFrame;
import javax.swing.JPanel;

avshabanov

Backup by dumping to/restoring from SQL

SCRIPT TO '/tmp/dump.sql';

Then connect to the new database, e.g. [1], then do:

avshabanov

Taken from facebook presentation Flux: A Unidirectional Data Flow Architecture for React Apps.

Flux Pattern

Action -> Dispatcher -> Store -> View

Flux message send

avshabanov

Web apps were deployed on local computer.

user-service-app

H2+Brikar(AOP)+Spring Core+Spring MVC+Protobuf/Jackson

1000 request, 10 threads, post-warm-up, ab -n 1000 -c 10 -A testonly:test -H 'Accept: application/json' 127.0.0.1:11280/rest/user/account/20:

  50%      2

avshabanov

  it('should check promise', function () {
    // Given:
    var rsvp = require('rsvp');
    var holder = {val: 0};

    // When:
    var promise = new rsvp.Promise(function (resolve) { resolve(1); });
    promise.then(function (d) { holder.val = d; });

    // Then:

avshabanov

import com.truward.brikar.common.executor.ThreadParametersBinder;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;


public final class RequestScopeThreadLocalBinder implements ThreadParametersBinder {
    @Override
    public Object getLocalObject() {
      return RequestContextHolder.getRequestAttributes();

avshabanov

#! /bin/bash
 
# certificates are valids during 365 days
VALID=365
TMPPASS="test"

while [[ -z "$password" ]]
do
  read -s -p "Enter password for the Certificate Authority (CA) key: " password
  echo