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Custom checker in scala
// Start of HEAD
import org.json.simple.JSONArray
import org.json.simple.JSONObject
import org.json.simple.parser.JSONParser
import collection.JavaConversions._
// End of HEAD
// Start of Body
/**
* TestStruct::
* testcase_id [long] ID of the test-case
* testcase_input_path [String] File path to test-case input
* testcase_output_path [String] File path to test-case output generated by the problem solver
* testcase_expected_output_path [String] File path to test-case expected output to be matched with
* metadata_file_paths [ArrayList<String>] File paths to Question metadata (Extra files usually used for defining traning sets)
* submission_code_path [String] File path to submission source code
* testcase_result [boolean] Set to true if test-case output matches test-case expected output. Matching is done line by line
* testcase_signal [long] Exit code of the test-case process
* testcase_time [double] Time taken by the test-case process in seconds
* testcase_memory [long] Peak memory of the test-case process determined in bytes
* data [String] <Future use>
*
*
* ResultStruct::
* result [boolean] Assign test-case result. true determines success. false determines failure
* score [double] Assign test-case score. Normalized between 0 to 1
* message [String] Assign test-case message. This message is visible to the problem solver
**/
object Solution {
def run_custom_checker(t_obj: TestStruct, r_obj: ResultStruct) {
println("testcase_id: " + t_obj.testcase_id)
println("testcase_input_path: " + t_obj.testcase_input_path)
println("testcase_output_path: " + t_obj.testcase_output_path)
println("testcase_expected_output_path: " + t_obj.testcase_expected_output_path)
t_obj.metadata_file_paths.foreach((path: String) => {
println("metadata_file_paths: " + path)
})
println("submission_code_path: " + t_obj.submission_code_path)
println("testcase_result: " + t_obj.testcase_result)
println("testcase_signal: " + t_obj.testcase_signal)
println("testcase_time: " + t_obj.testcase_time)
println("testcase_memory: " + t_obj.testcase_memory)
println("data: " + t_obj.data)
r_obj.score = 1.0f
r_obj.result = true
r_obj.message = "Success"
}
// End of Body
// Start of Tail
def write_result_json(r_obj: ResultStruct) {
var map = scala.collection.mutable.Map[String, Object]()
map += ("custom_result" -> new Integer(if (r_obj.result) 1 else 0))
map += ("custom_score" -> new java.lang.Double(if (r_obj.score > 1.0f) 1.0f else if (r_obj.score < 0.0f) 0.0f else r_obj.score))
map += ("custom_message" -> new String(if (r_obj.message.length > 4096) r_obj.message.substring(0, 4095) else r_obj.message))
val json_obj = new JSONObject(map)
println(json_obj)
}
def main(args: Array[String]) {
val r_obj = new ResultStruct()
if (args.length < 1) {
write_result_json(r_obj)
System.exit(1)
}
val json_file_path = args(0).toString()
var json_obj: JSONObject = null
var t_obj: TestStruct = null
try {
json_obj = new JSONParser().parse(new java.io.FileReader(json_file_path)).asInstanceOf[JSONObject]
t_obj = new TestStruct(json_obj)
} catch {
case _: Throwable => {
r_obj.message = "Unable to read input json"
write_result_json(r_obj)
System.exit(1)
}
}
run_custom_checker(t_obj, r_obj)
write_result_json(r_obj)
}
}
class TestStruct(json_obj: JSONObject) {
val testcase_id = json_obj.get("testcase_id").asInstanceOf[Long]
val testcase_input_path = json_obj.get("input_file_path").asInstanceOf[String]
val testcase_output_path = json_obj.get("output_file_path").asInstanceOf[String]
val testcase_expected_output_path = json_obj.get("expected_output_file_path").asInstanceOf[String]
val metadata_file_paths = if (json_obj.containsKey("metadata_file_paths") && json_obj.get("metadata_file_paths") != null) json_obj.get("metadata_file_paths").asInstanceOf[JSONArray].toArray().map(_.toString()) else Array[String]()
val submission_code_path = json_obj.get("submission_code_path").asInstanceOf[String]
val testcase_result = json_obj.get("testcase_result").asInstanceOf[Boolean]
val testcase_signal = json_obj.get("testcase_signal").asInstanceOf[Long]
val testcase_time = json_obj.get("testcase_time")
val testcase_memory = json_obj.get("testcase_memory").asInstanceOf[Long]
val data = json_obj.get("data").asInstanceOf[String]
}
class ResultStruct {
var result: Boolean = false
var score: Double = 0.0f
var message: String = "Uninitialized"
}
// End of Tail
Owner

patilarpith commented Sep 1, 2016

Testing:
Input file data. Path to be passed as command line argument

{"testcase_id":0,"input_file_path":"/run-XX/input00.txt","output_file_path":"/run-XX/output00.out","expected_output_file_path":"/run-XX/output_expected00.out","metadata_file_paths":["/run-XX/training.txt","/run-XX/training2.txt"],"submission_code_path":"/run-XX/solution.cpp", "testcase_result":true,"testcase_signal":0,"testcase_time":1.2,"testcase_memory":312322,"data":"Data"}

Expected output:

testcase_id:  0
testcase_input_path:  /run-XX/input00.txt
testcase_output_path:  /run-XX/output00.out
testcase_expected_output_path:  /run-XX/output_expected00.out
metadata_file_paths:  /run-XX/training.txt
metadata_file_paths:  /run-XX/training2.txt
submission_code_path:  /run-XX/solution.cpp
testcase_result:  True
testcase_signal:  0
testcase_time:  1.2
testcase_memory:  312322
data:  Data
{"custom_result": 1, "custom_score": 1.0, "custom_message": "Success"}
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