@Grab(group='com.h2database', module='h2-mvstore', version='1.4.192')

import org.h2.mvstore.*

def fileName = "mvtest.h2"

if (args.size() == 1) {

fileName = args[1]

}

MVStore s = MVStore.open(fileName)

// create/get the map named "data"

MVMap<Integer, String> map = s.openMap("data")

numMessages = 10000000

println "Created store and starting"

long start = System.currentTimeMillis()

(1..numMessages).each {

String randomContent = UUID.randomUUID().toString()

// add and read some data

map.put(it, randomContent)

}

long stop = System.currentTimeMillis()

long contentSize = UUID.randomUUID().toString().bytes.length

println "Wrote $numMessages keys, ${numMessages * contentSize} bytes in ${stop - start} ms"

def writeSpeed = (numMessages * contentSize)/((stop - start)/ 1000)

println "Speed is: $writeSpeed byte/sec"

// close the store (this will persist changes)

s.close()

//The read part

map = MVStore.open(fileName).openMap("data")

//read now 10M keys

start = System.currentTimeMillis()

(1..numMessages).each {

int key = (int) Math.floor(Math.random() * numMessages) + 1

// add and read some data

String randomContent = map.get(key)

}

stop = System.currentTimeMillis()

println "Read $numMessages keys, ${numMessages * contentSize} bytes in ${stop - start} ms"

def readSpeed = (numMessages * contentSize)/((stop - start)/ 1000)

println "Read speed is: $readSpeed byte/sec"