Initial commit

.gitignore

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+*.swp
+frontend/target
+frontend/.idea
+frontend/project

frontend/build.sbt

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+name := "frontend"
+
+version := "1.0"
+
+scalaVersion := "2.11.8"
+
+libraryDependencies += "org.scala-lang.modules" %% "scala-parser-combinators" % "1.0.4"

frontend/src/main/scala/edu/berkeley/cs/sdb/ConfigParser.scala

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+package edu.berkeley.cs.sdb
+
+import scala.util.parsing.combinator._
+
+class ConfigParser extends JavaTokenParsers {
+  def path: Parser[String] = """/?([a-zA-z\._\-]+/)*[a-zA-z\._\-]+""".r
+  def entity = "entity" ~> path
+
+
+  def URI: Parser[String] = """([a-zA-z\._\-]/)*[a-zA-Z\._\-](/\* | /\+)?""".r
+  def spawnpointList: Parser[Seq[String]] = "spawnpoints" ~> "{" ~> rep1sep(URI, ",") <~ "}"
+
+
+  def value: Parser[Any] = stringLiteral |
+                           wholeNumber ^^ (_.toInt) |
+                           floatingPointNumber ^^ (_.toDouble)
+
+  def valueSequence: Parser[Seq[Any]] = "[" ~> rep1sep(value, ",") <~ "]"
+
+  def parameter: Parser[(String, Any)] = ident ~ ":" ~ (ident | value | valueSequence) ^^ { case k ~ ":" ~ v => (k,v) }
+
+  def parameterSequence: Parser[Seq[(String, Any)]] = "{" ~> repsep(parameter, ",") <~ "}"
+
+  def spawnpointSpec: Parser[Either[String, Seq[(String, Any)]]] =
+      "on" ~> (ident | stringLiteral) ^^ (Left(_))
+      "where" ~> parameterSequence ^^ (Right(_))
+
+  def serviceDeployment: Parser[Service] = "deploy" ~ path ~ "as" ~ ident ~ "with" ~ parameterSequence ~ spawnpointSpec ^^
+    { case "deploy" ~ imgName ~ "as" ~ svcName ~ "with" ~ params ~ spec => Service(svcName, imgName, params, spec) }
+
+  def svcGraph: Parser[Seq[(String, String)]] = repsep(ident, "->") ^^ (_.sliding(2).map { case Seq(x, y) => (x, y) }.toSeq)
+
+  def deployment: Parser[Deployment] = entity ~ spawnpointList ~ rep(serviceDeployment) ~ rep(svcGraph) ^^
+      { case ent ~ spawnpoints ~ svcs ~ connList => Deployment(ent, spawnpoints, svcs, connList.flatten) }
+}

frontend/src/main/scala/edu/berkeley/cs/sdb/Deployment.scala

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+package edu.berkeley.cs.sdb
+
+case class Deployment(entity: String, spawnPointUris: Seq[String], services: Seq[Service],
+                      topology: Seq[(String, String)])

frontend/src/main/scala/edu/berkeley/cs/sdb/Service.scala

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+package edu.berkeley.cs.sdb
+
+case class Service(name: String, imageName: String, params: Seq[(String, Any)],
+                   spawnpointSpec: Either[String, Seq[(String, Any)]])