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package hu.bme.mit.inf.dslreasoner.domains.cps.cplex
import hu.bme.mit.inf.dslreasoner.domains.cps.CpsPackage
import hu.bme.mit.inf.dslreasoner.domains.cps.generator.CpsGenerator
import java.io.BufferedReader
import java.io.BufferedWriter
import java.io.FileReader
import java.io.FileWriter
import java.util.concurrent.TimeUnit
import java.util.regex.Pattern
import org.eclipse.emf.ecore.EPackage
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl
class CbcCpsMain {
static val PROBLEM_FILE = "problem.lp"
static val SOLUTION_FILE = "solution.txt"
static val VALUE_REGEX = Pattern.compile("Optimal - objective value\\s*([0-9]+(\\.[0-9]+)?)")
private new() {
new IllegalStateException("This is a static utility class and should not be instantiated directly.")
}
public static def void main(String[] args) {
Resource.Factory.Registry.INSTANCE.extensionToFactoryMap.put(Resource.Factory.Registry.DEFAULT_EXTENSION,
new XMIResourceFactoryImpl)
EPackage.Registry.INSTANCE.put(CpsPackage.eNS_URI, CpsPackage.eINSTANCE)
val generator = new CpsGenerator(1, 4, 1)
val problem = generator.generateCpsProblem
val toLp = new CpsToLpTranslator(problem, 10, true)
val lp = toLp.lpProblem
val writer = new BufferedWriter(new FileWriter(PROBLEM_FILE))
try {
writer.append(lp)
} finally {
writer.close
}
val process = new ProcessBuilder().inheritIO.command("cbc", PROBLEM_FILE, "solve", "solu", SOLUTION_FILE).start
if (!process.waitFor(120, TimeUnit.SECONDS)) {
System.err.println("Timeout reached")
process.destroyForcibly
System.exit(-1)
}
if (process.exitValue != 0) {
System.err.println("Unexpected exit value " + process.exitValue)
System.exit(-1)
}
val reader = new BufferedReader(new FileReader(SOLUTION_FILE))
var double value = Double.NaN
try {
var String line
while ((line = reader.readLine) !== null) {
println(line)
val matcher = VALUE_REGEX.matcher(line)
if (matcher.matches) {
value = Double.parseDouble(matcher.group(1))
}
}
} finally {
reader.close
}
val applicationCost = problem.requests.flatMap[requirements.map[count]].reduce[p1, p2|p1 + p2] * 5
val cost = applicationCost + value
println
println("Cost: " + cost)
}
}
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