corneil

import org.springframework.http.HttpStatus
import org.springframework.web.bind.annotation.ResponseStatus
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.contract

@ResponseStatus(HttpStatus.PRECONDITION_FAILED)
class PreconditionException(message: String) : Exception(message)

@ExperimentalContracts
@Throws(EntityNotFoundException::class)

corneil

import org.junit.Assert.assertEquals
import org.junit.Test
import org.springframework.core.convert.TypeDescriptor
import org.springframework.expression.spel.SpelParserConfiguration
import org.springframework.expression.spel.standard.SpelExpressionParser
import org.springframework.expression.spel.support.SimpleEvaluationContext

class PropertyHolder(val properties: Map<String, Any>)

class SpelTests {

corneil

inline fun <T> T.ifApply(expression: Boolean, block: T.() -> Unit, otherwise: T.() -> Unit) : T {
	return if(expression) {
		this.apply(block)
	} else {
        this.apply(otherwise)
    }	
}

inline fun <T> T.ifApply(expression: Boolean, block: T.() -> Unit) : T {
	if(expression) {

corneil

inline fun <K, V> Map<K, V>.getRequired(key: K): V = this.get(key) ?: throw IllegalArgumentException("$key not found in $keys")

fun main() {
    val aMap = mapOf("a" to 1, "b" to 2, "c" to 3)

	val anA = aMap.get("a") ?: error("a not found in ${aMap.keys}")
	// while line reads easier
	val guaranteedB = aMap.getRequired("b")
	
    

corneil

inline fun <T> T.ifZero(exp: Int, block: T.() -> Int): Int = if (exp == 0) block() else exp


// using
data class User(
	val firstName: String,
	val lastName: String,
	val dateOfBirth: Date
) : Comparable<User> {
	// classic comparator.

corneil

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.neo4j.examples</groupId>
    <artifactId>sdn5-movies</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

corneil

Keybase proof

I hereby claim:

• I am corneil on github.
• I am corneil (https://keybase.io/corneil) on keybase.
• I have a public key ASDB40W4Wve9epF06pwJoXAKLcK4H5ivgHUjJsOct3FAlAo

To claim this, I am signing this object:

corneil

public Object getTarget() throws Exception {

			MethodInvocation invocation = ExposeInvocationInterceptor.currentInvocation();
			return TransactionSynchronizationManager.getResource(invocation.getMethod()); // this call has different parameter.
		}

corneil

    java.lang.NullPointerException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
    at com.sun.proxy.$Proxy148.getLockModeType(Unknown Source)
    at org.springframework.data.jpa.repository.support.QueryDslJpaRepository.createQuery(QueryDslJpaRepository.java:180)
    at org.springframework.data.jpa.repository.support.QueryDslJpaRepository.findAll(QueryDslJpaRepository.java:101)

corneil

import groovy.io.FileType
def showOnly = true
def repoHome = new File(System.getProperty('user.home'), '.m2/repository')
def searchFolders = []
args.each { arg ->
	if(arg == '-s') {
		showOnly = true
	} else if(arg == '-d') {
		showOnly = false
	} else {