Leave your code better than you found it

Yusuf Çakal yusufcakal

Leave your code better than you found it

Java Developer

eroberer / dinamikMaske.m

Created November 21, 2017 21:36

Görüntü İşleme - Dinamik Maske ile kontrast azaltma

ufuk / postgresql-export-tables-to-s3-as-csv-file.sh

Last active July 10, 2023 04:04

BASH script to export some tables from the PostgreSQL database to S3 as CSV files.

ufuk / bash-echo-time-by-timezone.sh

Created January 31, 2019 13:55

Echo time by timezone in BASH

	echo "$(TZ='Europe/Moscow' date +%Y-%m-%d\ %H\:%M)"

	# output => 2019-01-31 16:52

ufuk / import-csv-file-from-s3-into-aws-redshift.sql

Created January 31, 2019 14:01

Import CSV file from S3 into AWS Redshift

	-- Before importing, you need to create table
	CREATE TABLE example_table
	(
	...
	);

	-- Importing...
	COPY example_table
	FROM 's3://<BUCKET_NAME>/.../example_table.csv'
	CREDENTIALS 'aws_access_key_id=...;aws_secret_access_key=...'

EliasRanz / MongoConfig.java

Last active June 12, 2024 19:48

Mongo Configuration for Amazon DocumentDB utilizing Spring-Boot and spring-data-mongodb

	import com.mongodb.MongoClient;
	import com.mongodb.MongoClientOptions;
	import com.mongodb.MongoCredential;
	import com.mongodb.ServerAddress;
	import lombok.extern.log4j.Log4j2;
	import org.springframework.beans.factory.annotation.Value;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.context.annotation.Profile;
	import org.springframework.data.mongodb.config.AbstractMongoConfiguration;

ufuk / BaseMockito2JUnit4Test.java

Last active October 24, 2021 17:52

Performs "verify no more interactions" check automatically for all mock objects (works with Mockito version 2 or higher & JUnit version 4 and 5). For detailed description: https://ufukuzun.wordpress.com/2019/04/09/ne-olup-bittiginden-habersiz-testlere-derman-mockscollector/ (Turkish)

	import org.apache.commons.lang3.ArrayUtils;
	import org.junit.After;
	import org.junit.runner.RunWith;
	import org.mockito.InOrder;
	import org.mockito.junit.MockitoJUnitRunner;

	import static org.mockito.Mockito.inOrder;
	import static org.mockito.Mockito.verifyNoMoreInteractions;

	@RunWith(MockitoJUnitRunner.class)

ufuk / HttpServletRequestResponsePrinter.java

Created September 5, 2019 06:54

Utility to generate logging-purpose text for HttpServletRequest/Response

	package ...;

	import ...JsonUtils;
	import lombok.extern.slf4j.Slf4j;
	import org.apache.commons.io.IOUtils;
	import org.springframework.http.HttpHeaders;
	import org.springframework.util.LinkedMultiValueMap;
	import org.springframework.util.MultiValueMap;
	import org.springframework.web.util.ContentCachingRequestWrapper;
	import org.springframework.web.util.WebUtils;

ufuk / SpringDataPageUtils.java

Last active February 8, 2021 13:04

SpringDataPageUtils to convert paged entities to paged model objects

	import org.springframework.data.domain.Page;
	import org.springframework.data.support.PageableExecutionUtils;

	import java.util.function.Function;
	import java.util.stream.Collectors;

	public final class SpringDataPageUtils {

	public static <T, C> Page<C> convertPage(Page<T> page, Function<T, C> converter) {
	return PageableExecutionUtils.getPage(

ufuk / ExampleConstraint.java

Last active March 20, 2024 13:47

How to initialize an instance of the constraint annotation while writing unit tests for a javax.validation.ConstraintValidator

	import javax.validation.Constraint;
	import javax.validation.Payload;
	import java.lang.annotation.*;

	@Documented
	@Constraint(validatedBy = ExampleConstraintValidator.class)
	@Target({ElementType.FIELD})
	@Retention(RetentionPolicy.RUNTIME)
	public @interface ExampleConstraint {

ufuk / TextUtils.java

Last active April 8, 2021 07:03

Curated text utils for specific use cases

	import org.apache.commons.lang3.StringUtils;

	import java.text.Normalizer;
	import java.util.Arrays;
	import java.util.List;
	import java.util.Locale;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;
	import java.util.stream.Collectors;