Added Map parameter

Author: derNiklaas

src/main/scala/org/codeoverflow/chatoverflow/requirement/parameter/MapParameterImpl.scala

@@ -0,0 +1,58 @@
+package org.codeoverflow.chatoverflow.requirement.parameter
+
+import java.util.{Collections, List}
+
+import org.codeoverflow.chatoverflow.registry.Impl
+import org.codeoverflow.chatoverflow.api.io.parameter.MapParameter
+
+import collection.JavaConverters._
+import java.util.Map
+/**
+  * A parameter holding a Map<String, String> value.
+  */
+@Impl(impl = classOf[MapParameter])
+class MapParameterImpl extends MapParameter{
+  private var value: Map[String, String] = null
+
+  override def getType: Class[Map[String, String]] = classOf[Map[String, String]]
+
+  override def serialize(): String = {
+    var out = ""
+    value.keySet().forEach(key => {
+      var valueSet = value.get(key)
+      if(out == ""){
+        out = out + "("+key+";"+valueSet+")"
+      }else{
+        out = out + ",("+key+";"+valueSet+")"
+      }
+    })
+    out
+  }
+
+  override def get(): Map[String, String] = value
+
+  override def deserialize(value: String): Unit = {
+    var splits = value.split(",");
+    if (splits.length == 1) {
+      var obj = splits(0)
+      obj = obj.replaceAll("\\(" ,"").replaceAll("\\)","").trim
+      splits = obj.split(";")
+      if(splits.length == 2){
+        set(Collections.singletonMap[String, String](splits(0), splits(1)))
+      }
+    } else {
+      var map = scala.collection.mutable.Map[String, String]()
+      for (part <- splits) {
+        var obj: String = part.replaceAll("\\(" ,"").replaceAll("\\)","").trim
+        var parts = obj.split(";")
+        if(parts.length == 2){
+          map += (parts(0) -> parts(1))
+        }
+      }
+      if(map.nonEmpty) set(mutableMapAsJavaMap[String, String](map))
+    }
+  }
+
+  override def set(value: Map[String, String]): Unit = this.value = value
+
+}