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Ufuk Uzun ufuk

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ufuk / find-largest-10-directories.sh

Last active July 9, 2017 19:22

Helps you to find out largest 10 directories in the current working directory in a UNIX system. (Command to see disk usage: df -h)

du -a . | sort -n -r | head -n 10

ufuk / siege-post-json.sh

Last active April 14, 2023 16:37

Siege command to benchmark POST method with JSON payload and headers example. ("-c" for concurrent request count) ("-t" for time) ("-H" for header)

siege -c50 -t5S -H 'Content-Type: application/json' -H 'access-token: ...' 'http://localhost:8080/... POST {"...": "...", ...}'

ufuk / AsyncConfiguration.java

Last active December 10, 2022 21:43

The easy way to disable @ Async annotation for test contexts. Same approach can be used to disable @ Scheduled annotation as well.

	package ...configuration;

	import org.springframework.context.annotation.Configuration;
	import org.springframework.context.annotation.Profile;
	import org.springframework.scheduling.annotation.EnableAsync;

	@Configuration
	@EnableAsync
	@Profile("!test")
	public class AsyncConfiguration {

ufuk / uniq-lines-with-grep.sh

Created May 28, 2017 21:07

Searching some text and getting unique result lines with grep

grep "search text" filename.txt | sort | uniq

ufuk / LoggingObjectMapper.java

Created April 20, 2017 11:37

JSON serializing with masking support...

	import com.fasterxml.jackson.databind.AnnotationIntrospector;
	import com.fasterxml.jackson.databind.ObjectMapper;
	import com.fasterxml.jackson.databind.introspect.AnnotationIntrospectorPair;

	public final class LoggingObjectMapper extends ObjectMapper {

	private static final long serialVersionUID = -1620079742091329228L;

	public LoggingObjectMapper() {
	super();

ufuk / hsqldb-with-postgresql-syntax.properties

Last active February 18, 2025 08:56

To use HSQLDB with PostgreSQL syntax add ";sql.syntax_pgs=true" to end of the JDBC URL. Alternatively use ";sql.syntax_ora=true" for Oracle.

spring.datasource.url=jdbc:hsqldb:mem:testdb;sql.syntax_pgs=true

ufuk / DistributedLock.java

Last active July 14, 2024 08:54

Distributed lock solution for Spring projects, using aspect and Redis

	import java.lang.annotation.ElementType;
	import java.lang.annotation.Retention;
	import java.lang.annotation.RetentionPolicy;
	import java.lang.annotation.Target;
	import java.util.concurrent.TimeUnit;

	@Retention(RetentionPolicy.RUNTIME)
	@Target(ElementType.METHOD)
	public @interface DistributedLock {

ufuk / grep-excluding.sh

Created February 8, 2017 11:17

Grep Excluding

… | grep -v "sen gelme ulan ayı"

ufuk / JpaEntityQueryBuilder.java

Last active January 27, 2025 03:21

Easy to use query builder for JPA Criteria API

	import org.apache.commons.collections4.CollectionUtils;
	import org.apache.commons.collections4.IteratorUtils;
	import org.apache.commons.lang3.StringUtils;
	import org.hibernate.query.criteria.internal.path.PluralAttributePath;
	import org.springframework.data.domain.Page;
	import org.springframework.data.domain.PageRequest;
	import org.springframework.data.repository.support.PageableExecutionUtils;

	import javax.persistence.EntityManager;
	import javax.persistence.TypedQuery;

ufuk / ApplicationContextHolder.java

Last active April 21, 2025 10:32 — forked from baybatu/getting-spring-bean-from-unmanaged-area.java

Utility bean for getting Spring beans from static context.

	import org.springframework.beans.BeansException;
	import org.springframework.context.ApplicationContext;
	import org.springframework.context.ApplicationContextAware;
	import org.springframework.stereotype.Component;

	@Component
	public class ApplicationContextHolder implements ApplicationContextAware {

	private static ApplicationContext applicationContext;