yusufcakal

public class TextMasker {

    public static String mask(String text, int begin, int end) {
        if (Objects.isNull(text)) {
            return null;
        }

        if (areIndexesInBoundOfText(text, begin, end)) {
            String firstDisplayablePart = text.substring(0, begin);
            String secondDisplayablePart = text.substring(end);

yusufcakal

https://www.callicoder.com/hibernate-spring-boot-jpa-embeddable-demo/
https://www.baeldung.com/java-optional-or-else-vs-or-else-get
https://refactoring.guru/smells/feature-envy
https://www.mkyong.com/unittest/junit-4-tutorial-2-expected-exception-test/
https://www.javacodegeeks.com/2013/02/testing-expected-exceptions-with-junit-rules.html
https://www.geeksforgeeks.org/luhn-algorithm/
http://baddotrobot.com/blog/2012/03/27/expecting-exception-with-junit-rule/
https://github.com/r2dbc
https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html
https://github.com/snicoll-demos/spring-boot-migration/tree/master/src/main/java/com/example/speakerservice

muratcanbur

@RunWith(AndroidJUnit4::class)
abstract class BaseMockitoTest {

    private val mockitoMocksCollector = MockitoMocksCollector()

    @After
    fun after() {
        val allMocks = mockitoMocksCollector.getAllMocks()
        allMocks.forEach { mock ->
            verifyNoMoreInteractions(mock)

baybatu

@ControllerAdvice
public class PageResponseAdvice implements ResponseBodyAdvice<Object> {

    @Override
    public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
        return PageResponse.class.isAssignableFrom(returnType.getParameterType());
    }

    @Override
    public Object beforeBodyWrite(Object body,

baybatu

RabbitMQ: Mesajı Geciktirerek Tüketmek

• delay-exchange: Geciktirilecek mesajın bırakıldığı exchange.
• delay-queue: delay-exchange'e bağlı. Herhangi bir tüketicisi olmamalı.
• ana-exchange: Geciktirilmeden tüketilmek istenen mesajların bırakılabileceği exchange.
• ana-queue: ana-exchange'e bağlı kuyruk. Tüketicisi var.

delay-queue şu parametrelerle oluşturulur:

• x-dead-letter-exchange: -- boş
• x-message-ttl: 3000 -- mesajın bekletileceği milisaniye

baybatu

public class ThreadPoolTaskExecutorWithMdcPropagation extends ThreadPoolExecutor {

    private static final Logger LOGGER = LoggerFactory.getLogger(ThreadPoolTaskExecutorWithMdcPropagation.class);

    private final Map<String, String> parentMdcContextMap;

    public ThreadPoolTaskExecutorWithMdcPropagation(int corePoolSize, int maxPoolSize, long keepAliveTime, TimeUnit keepAliveTimeUnit) {
        super(corePoolSize, maxPoolSize, keepAliveTime, keepAliveTimeUnit, new LinkedBlockingQueue<>());
        parentMdcContextMap = MDC.getCopyOfContextMap();
    }

baybatu

@Mock(answer = Answers.RETURNS_DEEP_STUBS)
private NestedObject nestedObject;

example usage in a test method:

when(nestedObject.getStatusInfo().getValue().getStatus()).thenReturn(1);

okanmenevseoglu

-- Create new user to the DB
CREATE USER {{username}} WITH ENCRYPTED PASSWORD {{password}};

-- Give access connection to the wanted DB
GRANT CONNECT ON DATABASE {{dbname}} TO {{username}};

-- Give access to the wanted schema
GRANT USAGE ON SCHEMA {{schemaname}} TO {{userName}};

-- Give select access to the sequences for the wanted schema

okanmenevseoglu

-- To be able to use these in full detail, you must have the necesarry role authentication

-- Find activity list on DB
select * from pg_stat_activity

-- Find pid, user name, query, backend start date, transaction start date, query start date and the longest running sql times that are active and idle in transaction
SELECT  pid, usename, query, backend_start, xact_start, query_start, (now() - query_start) AS run_time FROM pg_stat_activity WHERE state IN ('active', 'idle in transaction') ORDER BY query_start

-- Terminate the sql with the given pid
SELECT

okanmenevseoglu

# 1) Download Mac Version to install from App Store
# 2) Put a USB stick at least 8 GB
# 3) Open Terminal and enter the following command:

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume