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@ufuk
ufuk / HowToGetHttpServletRequestAndResponseProgrammatically.java
Created October 6, 2016 11:31
To get the request and response objects in Spring MVC projects you can use this code
ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();
HttpServletRequest httpServletRequest = servletRequestAttributes.getRequest();
HttpServletResponse httpServletResponse = servletRequestAttributes.getResponse();
@ufuk
ufuk / LazyDeveloper.java
Last active June 27, 2019 13:04
Just another reason to why you shouldn't use Lombok, in another saying another reason to why you should write unit tests: You have two fields in your class. Fields are in the same type. You use @AllArgsConstructor to auto-generate your all args constructor. It works for a moment, until you change the order of the field.
import lombok.AllArgsConstructor;
import lombok.Data;
@Data
@AllArgsConstructor
public class LazyDeveloper {
private String firstName;
private String lastName;
@ufuk
ufuk / StartEndTimeWithJodaTime.java
Created October 24, 2016 09:09
Joda-Time library provides us a Virtual Clock utility named "DateTimeUtils". This is a demonstration for mocking start-end times.
import org.joda.time.DateTime;
public class StartEndTimeWithJodaTime {
private DateTime startTime;
private DateTime endTime;
public void process() {
startTime = DateTime.now();
@ufuk
ufuk / ComparingUtils.java
Last active September 2, 2020 13:41
Fluent API for comparing two Comparables.
public class ComparingUtils {
public static <T extends Comparable<T>> ComparisonBuilder<T> is(T comparable) {
return new ComparisonBuilder<>(comparable);
}
public static class ComparisonBuilder<T> {
private Comparable<T> subject;
@ufuk
ufuk / RestTemplateCanNotReadResponseBodyWhenHTTPStatus401.java
Last active November 30, 2016 19:00
Spring RestTemplate Issue - Can't read response body when the HTTP request has return status 401
// Use HttpComponentsClientHttpRequestFactory to fix the issue
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
...
RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory());
@ufuk
ufuk / find-out-stale-branches.sh
Last active October 31, 2017 08:35
Lists git branches ordered by last change time to find out which ones are stale branches.
#!/bin/bash
# DESCRIPTION
# -----------
#
# Produces CSV output like this:
#
# LAST CHANGE TIME, TIME ELAPSED, AUTHOR, BRANCH
# 2017-01-16 14:56:26 +0000, 3 months ago, john.doe@example.com, origin/bug-fix-1
# 2017-01-23 18:27:53 +0300, 2 months ago, john.doe@example.com, origin/new-feature-1
@ufuk
ufuk / find-out-slower-tests.sh
Last active January 5, 2021 09:48
Lists test classes descending ordered by elapsed time to find out which ones are slower than others. Run this BASH script at project's root.
#!/bin/bash
# Run tests
mvn clean test --fail-never
# Print header
echo
echo "TEST NAME, TESTS COUNT, FAILURES COUNT, ERRORS COUNT, SKIPPED COUNT, TIME ELAPSED"
# Prepare report
@ufuk
ufuk / run-simple-http-server.sh
Last active January 21, 2017 14:40
SimpleHTTPServer is a simple HTTP server that provides standard GET and HEAD request handlers. Default port is 8000.
#!/bin/bash
python -m SimpleHTTPServer
@ufuk
ufuk / ApplicationContextHolder.java
Last active December 17, 2022 14:16 — 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;
@ufuk
ufuk / JpaEntityQueryBuilder.java
Last active January 8, 2023 17:38
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;