simple protocol parsing with regex

package com.fnordmetric.enterprise

class AbstractInstruction {

trait AbstractInstruction {

  def execute : String = "OK"

  def execute : String

}

// FnordMetric Enterprise

//   (c) 2011-2013 Paul Asmuth <paul@paulasmuth.com>

//

// Licensed under the MIT License (the "License"); you may not use this

// file except in compliance with the License. You may obtain a copy of

// the License at: http://opensource.org/licenses/MIT

package com.fnordmetric.enterprise

class ErrorInstruction(err: String) extends AbstractInstruction {

  def execute : String = "ERROR " + err

}

object InstructionFactory {

  def parse(str: String) : AbstractInstruction =

    new AbstractInstruction

  val X_SAMPLE = """^SAMPLE (.*)(delta|mean|sum)-([0-9]+) ([0-9]+\.?[0-9]+)$""".r

  def parse(str: String) : AbstractInstruction = str match {

    case X_SAMPLE(key, mode, flush_interval, value) =>

      new SampleInstruction(key, mode, flush_interval, value)

    case _ =>

      new ErrorInstruction("invalid command")

  }

}

// FnordMetric Enterprise

//   (c) 2011-2013 Paul Asmuth <paul@paulasmuth.com>

//

// Licensed under the MIT License (the "License"); you may not use this

// file except in compliance with the License. You may obtain a copy of

// the License at: http://opensource.org/licenses/MIT

package com.fnordmetric.enterprise

class SampleInstruction(key: String, mode: String, flush_interval: String, value: String) extends AbstractInstruction {

  def execute : String = "OK"

}