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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

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(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

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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

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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

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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

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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

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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'

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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

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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

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version: '3.1'

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