steklopod

Prepare

• apt update
• apt-get update
• apt upgrade
• apt-get upgrade
• apt-get install unzip zip bash apt-transport-https ca-certificates nano curl gnupg-agent software-properties-common gcc g++ make htop git

Oh My Zsh - terminal

steklopod

import com.fasterxml.jackson.databind.DeserializationFeature
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.kotlin.readValue
import org.junit.jupiter.api.Assertions.*
import org.junit.jupiter.api.BeforeAll
import org.junit.jupiter.api.Disabled
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.TestInstance
import org.junit.jupiter.api.extension.ExtendWith

steklopod

package com.javarush.task.task31.task3102;

import java.io.File;
import java.io.IOException;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.*;

/*
Находим все файлы

steklopod

import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Pattern;

@NoArgsConstructor

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import java.util.List;
import java.util.UUID;

public interface AbstractMapper<T, R> {

    R map(T source);

    List<R> map(List<T> sourceList);

    default UUID stringToUUID(String string) {

steklopod

@Data
@Validated
@ConfigurationProperties("registration.kafka")
public class KafkaProperties {

    @NotEmpty(message = "Parameter 'bootstrap-servers' can not be empty")
    private String bootstrapServers;

    @NestedConfigurationProperty
    @NotNull(message = "Parameter 'some-activate' can not be null")

steklopod

version: "3.7"
# docker-compose up --d --build --force-recreate redis

services:
  redis:
    image: redis:alpine
    container_name: redis
    hostname: redis
    command: redis-server --requirepass 123456
    restart: unless-stopped

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select h.id as hacker_id, name, sum(m_score) as total_score from(
  select h.id, h.name, nvl(max(s.score),0) m_score from hackers h
    left join submissions s on
       s.hacker_id=h.id
    group by h.id, s.challenge_id
)
where m_score > 0
order by total_score desc, name asc;

steklopod

Start

Windows

• zookeeper-server-start.bat config/zookeeper.properties
• kafka-server-start.bat config/server.properties

Create

kafka-topics.bat --bootstrap-server localhost:9092 --topic first --create --partitions 6 --replication-factor 1

List

kafka-topics.bat --bootstrap-server localhost:9092 --list

Delete

steklopod

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInstance;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import static org.junit.jupiter.api.Assertions.assertEquals;

// Написать функцию, которая получает на вход массив и искомое число и возвращает 2 элемента в массиве, которые в сумме дадут это число (за n^2 решать не надо).