Jinna Baalu jinnabaalu

Clean Code - SOLID Piniciples

Robert Cecil Martin also known as Uncle Bob Martin - SOLID

Summary of 'Clean code' by Robert C. Martin

Clean Code - Uncle Bob

Part 1

(Robert Cecil Martin also known as Uncle Bob Martin - SOLID)[http://www.cleancoder.com/products]

(Summary of 'Clean code' by Robert C. Martin)[https://gist.github.com/wojteklu/73c6914cc446146b8b533c0988cf8d29]

Clean Code PDF: https://www.investigatii.md/uploads/resurse/Clean_Code.pdf

Clean Code Java: https://github.com/leonardolemie/clean-code-java

SOLID Java Examples: https://www.baeldung.com/solid-principles

The Efficient Mappings in Elasticsearch Index

Implicit/Dynamic Mappings vs Explicit Mappings

Implicit/Dynamic Mapping: Indexing the document without defining the mappings, new fields will be added to the top level and nested. Helps to index data faster, the optimized way of indexing will help indexing perform better with the following.

Enable date_detection and set the dynamic_date_formats
Numeric Detection, "numeric_detection": true
Customer Analyzers need to be tested before going production using Analyzer API, standard analyzers are supported out of the box for natural languages.
Coerce, indexing fails if the dirty values are getting indexed. Example if you are trying to save a number with "10" it will be either saved as floating point or a string but not integer, to make it strict we use coerce at index level of field level

	version: '3.7'
	services:
	zookeeper:
	image: confluentinc/cp-zookeeper:5.3.1
	container_name: zookeeper
	environment:
	ZOOKEEPER_CLIENT_PORT: 2181
	ZOOKEEPER_TICK_TIME: 2000
	kafka:
	image: confluentinc/cp-kafka:5.3.1

	version: '2'
	services:
	zookeeper:
	image: confluentinc/cp-zookeeper:5.3.0
	environment:
	ZOOKEEPER_CLIENT_PORT: 2181
	ZOOKEEPER_TICK_TIME: 2000
	ZOOKEEPER_SYNC_LIMIT: 2
	ports:
	- 2181:2181

	version: '3'
	services:
	proxy:
	image: nginx:latest
	volumes:
	- nginx-proxy-conf:/etc/nginx/
	- nginx-proxy-ssl-certs:/etc/nginx/ssl
	- nginx-proxy-html:/usr/share/nginx/html
	ports:
	- 80:80

	version: '3.3'
	services:
	elasticsearch:
	image: docker.elastic.co/elasticsearch/elasticsearch:6.6.0
	container_name: elasticsearch
	ports:
	- 9200:9200
	- 9300:9300
	environment:
	ES_JAVA_OPTS: '-Xms256m -Xmx256m'

	version: '3.3'
	services:
	elasticsearch:
	image: docker.elastic.co/elasticsearch/elasticsearch:6.6.0
	container_name: elasticsearch
	volumes:
	- /var/db/data/elasticsearch:/usr/share/elasticsearch
	ports:
	- 9200:9200
	- 9300:9300

	version: '3.3'
	services:
	elasticsearch1:
	image: docker.elastic.co/elasticsearch/elasticsearch:6.6.0
	environment:
	ES_JAVA_OPTS: '-Xms256m -Xmx256m'
	cluster.name: es-cluster
	node.name: es1
	network.bind_host: 0.0.0.0
	discovery.zen.minimum_master_nodes: 1

	version: '3.1'

	services:
	postgres:
	image: postgres
	container_name: postgres
	restart: always
	environment:
	- POSTGRES_USER=test
	- POSTGRES_PASSWORD=test