mid cassandra rewrite

README.textile

@@ -1,58 +1,53 @@
-h1. Akka Actor Kernel:
+h1. Akka: RESTful Distributed Persistent Transactional Actors
-__RESTful Distributed Persistent Transactional Actors__
 
-h1. Introduction
+h3. "http://akkasource.org":http://akkasource.org
 
-The Akka kernel implements a unique hybrid of:
+Akka implements a unique hybrid of:
-* The Actor model (Actors and Active Objects)
+* The Actor model (Actors and Active Objects), which gives you:
-** Asynchronous, non-blocking highly concurrent components.
+** Concurrency (high-level and simple)
+** Asynchronous, non-blocking and highly performant components.
 ** Supervision with "let-it-crash" semantics. Components are loosely coupled and restarted upon failure.
 * Software Transactional Memory (STM).
-* BASE persistence - Pluggable Eventually Consistent distributed scalable persistent storage.
+* BASE and ACID persistence - Pluggable Eventually Consistent or ACID distributed scalable persistent storage.
-* Remoting - Distributed services.
+* Remoting - Distributed services with supervision and error management
-* REST - JAX-RS binding.
+* REST (JAX-RS) and Comet bindings.
+* Monitoring and Management
 
-h2. Here is a short overview
+Akka can be used in two different ways:
+* As a library: used by a web app, to be put into ‘WEB-INF/lib’
+* As a kernel: stand-alone kernel, embedding the servlet container
 
-h3. The Actor model and supervisor hierarchies
+See the "Use-case and Deployment Scenarios":http://wiki.github.com/jboner/akka/use-case-and-deployment-scenarios for details.
 
-"Actors":http://en.wikipedia.org/wiki/Actor_model with "Erlang OTP-style supervisors":http://www.erlang.org/doc/design_principles/sup_princ.html#5 and "embrace failure/let-it-crash" semantics to allow implementation of asynchronous, non-blocking and highly fault-tolerant systems. Sort of "SEDA":http://www.eecs.harvard.edu/~mdw/proj/seda/ in a box with highly configurable and monitorable (JMX and w3c) thread pools and message queues.
+h1. What's Akka all about? Why should I care?  
 
-h3. Software Transactional Memory (STM)
+If you are new to Akka then I suggest you start with either the:
 
-"Software Transactional Memory (STM)":http://en.wikipedia.org/wiki/Software_transactional_memory for composable message flows. Distributed transactions will come very soon, backed up by "ZooKeeper":http://hadoop.apache.org/zookeeper/. The STM works with both persistent datastructures and in-memory datastructures (see below).
+* "High Level View":http://wiki.github.com/jboner/akka/modules-the-high-level-view; which is outlining the different modules in Akka.
+* "Use-case and Deployment Scenarios":http://wiki.github.com/jboner/akka/use-case-and-deployment-scenarios; outlining how and in which use-case and deployment scenarios can I use Akka?
+* "Examples":http://wiki.github.com/jboner/akka/examples; showing how to build a RESTful, transactional, persistent Active Object and Actor.
 
-h3. BASE: Eventually Consistent Distributed persistence
+After that you can dive into the "Reference Manual":http://wiki.github.com/jboner/akka/akka-reference-manual.
 
-Akka provides a "Eventually Consistent":http://www.allthingsdistributed.com/2008/12/eventually_consistent.html Transactional Persistent Map, Vector and Ref. Backed up by the "Cassandra":http://incubator.apache.org/cassandra/  highly scalable, eventually consistent, distributed, structured key-value store. Akka will add support for "Terracotta":http://terracotta.org, "Redis":http://code.google.com/p/redis/, "Memcached":http://www.danga.com/memcached/, "Voldemort":http://project-voldemort.com/, "Tokyo Cabinet/Tyrant":http://tokyocabinet.sourceforge.net/ and "Hazelcast":http://www.hazelcast.com/ shortly.
+h1. Documentation
-
-New nodes can be added and removed on the fly to support true scaling of cluster. The addition of Terracotta and Hazelcast will allow for atomic (ACID) transactions (non-BASE).
-
-h3. REST
-
-Actors can be exposed as "REST":http://en.wikipedia.org/wiki/Representational_State_Transfer services through "JAX-RS":https://jersey.dev.java.net/.
-
-h3. Remoting
-
-Actors can be defined and started on remote nodes, supporting both remote failures and supervision/linking. Enabling another dimension of fault-tolerance.
-
-h3. Java and Scala API
-
-Both a Java API through Active Objects and annotations as well as a Scala API with Erlang-style Actors with pattern matching etc.
-
-h3. Microkernel
-
-Akka has a microkernel that embeds the Actor management, Persistence service, REST integration, JMX management and Remote service. Simply drop your application in the /deploy directory and start up the kernel and you should be able to access your Actors through REST.
-
-h2. Documentation
 
 Akka has pretty thorough "reference documentation":https://github.com/jboner/akka/wikis. Covering examples, APIs and configuration.
 
-h2. Distribution
+h1. Distribution
 
 The latest distribution can be found in the "downloads section":https://github.com/jboner/akka/downloads
 
-h2. License
+h1. Mailing List
+
+If you have questions and/or feedback: please sign up to the Akka User mailing list: 
+"http://groups.google.com/group/akka-user":http://groups.google.com/group/akka-user
+
+h1.  Professional Support
+
+Scalable Solutions AB is providing a variety of professional support packages for Akka, please visit their website for details: 
+"http://scalablesolutions.se":http://scalablesolutions.se
+
+h1. License
 
 <pre>
 This software is licensed under the Apache 2 license, quoted below.

kernel/pom.xml

@@ -125,6 +125,11 @@
       <artifactId>cassidy</artifactId>
       <version>0.1</version>
     </dependency>
+    <dependency>
+      <groupId>commons-pool</groupId>
+      <artifactId>commons-pool</artifactId>
+      <version>1.5.1</version>
+    </dependency>
 
     <!-- For Jersey -->
     <dependency>

kernel/src/main/scala/Kernel.scala

@@ -16,7 +16,7 @@ import net.lag.configgy.{Config, Configgy, RuntimeEnvironment}
 
 import kernel.jersey.AkkaServlet
 import kernel.nio.RemoteServer
-import kernel.state.CassandraStorage
+import kernel.state.EmbeddedCassandraStorage
 import kernel.util.Logging
 
 /**
@@ -119,7 +119,7 @@ object Kernel extends Logging {
   private[akka] def startCassandra = if (config.getBool("akka.storage.cassandra.service", true)) {
     System.setProperty("cassandra", "")
     System.setProperty("storage-config", akka.Boot.CONFIG + "/")
-   CassandraStorage.start
+   EmbeddedCassandraStorage.start
   }
 
   private[akka] def startJersey = {
@@ -159,7 +159,7 @@ object Kernel extends Logging {
 
     println("=================================================")
     var start = System.currentTimeMillis
-    for (i <- 1 to NR_ENTRIES) CassandraStorage.insertMapStorageEntryFor("test", i.toString, "data")
+    for (i <- 1 to NR_ENTRIES) EmbeddedCassandraStorage.insertMapStorageEntryFor("test", i.toString, "data")
     var end = System.currentTimeMillis
     println("Writes per second: " + NR_ENTRIES / ((end - start).toDouble / 1000))
 
@@ -167,13 +167,13 @@ object Kernel extends Logging {
     start = System.currentTimeMillis
     val entries = new scala.collection.mutable.ArrayBuffer[Tuple2[String, String]]
     for (i <- 1 to NR_ENTRIES) entries += (i.toString, "data")
-    CassandraStorage.insertMapStorageEntriesFor("test", entries.toList)
+    EmbeddedCassandraStorage.insertMapStorageEntriesFor("test", entries.toList)
     end = System.currentTimeMillis
     println("Writes per second - batch: " + NR_ENTRIES / ((end - start).toDouble / 1000))
     
     println("=================================================")
     start = System.currentTimeMillis
-    for (i <- 1 to NR_ENTRIES) CassandraStorage.getMapStorageEntryFor("test", i.toString)
+    for (i <- 1 to NR_ENTRIES) EmbeddedCassandraStorage.getMapStorageEntryFor("test", i.toString)
     end = System.currentTimeMillis
     println("Reads per second: " + NR_ENTRIES / ((end - start).toDouble / 1000))
 

kernel/src/main/scala/state/CassandraStorage.scala

@@ -18,6 +18,185 @@ import org.apache.thrift.transport.TServerSocket
 import org.apache.thrift.transport.TTransportFactory
 import org.apache.thrift.TProcessorFactory
 
+/**
+ * NOTE: requires command line options:
+ * <br/>
+ *   <code>-Dcassandra -Dstorage-config=config/ -Dpidfile=akka.pid</code>
+ * <p/>
+ * @author <a href="http://jonasboner.com">Jonas Bon&#233;r</a>
+ */
+object EmbeddedCassandraStorage extends Logging {
+  val TABLE_NAME = "akka"
+  val MAP_COLUMN_FAMILY = "map"
+  val VECTOR_COLUMN_FAMILY = "vector"
+  val REF_COLUMN_FAMILY = "ref:item"
+
+  val IS_ASCENDING = true
+
+  val RUN_THRIFT_SERVICE = kernel.Kernel.config.getBool("akka.storage.cassandra.thrift-server.service", false)
+  val BLOCKING_CALL = {
+     if (kernel.Kernel.config.getBool("akka.storage.cassandra.blocking", true)) 0
+     else 1 
+  }
+
+  @volatile private[this] var isRunning = false
+  private[this] val serializer: Serializer = {
+    kernel.Kernel.config.getString("akka.storage.cassandra.storage-format", "java") match {
+      case "scala-json" => Serializer.ScalaJSON
+      case "java-json" =>  Serializer.JavaJSON
+      //case "sbinary" =>    Serializer.SBinary
+      case "java" =>       Serializer.Java
+      case "avro" =>       throw new UnsupportedOperationException("Avro serialization protocol is not yet supported")
+      case unknown =>      throw new UnsupportedOperationException("Unknown storage serialization protocol [" + unknown + "]")
+    }
+  }
+ 
+  // TODO: is this server thread-safe or needed to be wrapped up in an actor?
+  private[this] val server = classOf[CassandraServer].newInstance.asInstanceOf[CassandraServer]
+
+  private[this] var thriftServer: CassandraThriftServer = _
+  
+  def start = synchronized {
+    if (!isRunning) {
+      try {
+        server.start
+        log.info("Cassandra persistent storage has started up successfully");
+      } catch {
+        case e =>
+          log.error("Could not start up Cassandra persistent storage")
+          throw e
+      }
+      if (RUN_THRIFT_SERVICE) {
+        thriftServer = new CassandraThriftServer(server)
+        thriftServer.start
+      }
+      isRunning
+    }
+  }
+
+  def stop = if (isRunning) {
+    //server.storageService.shutdown
+    if (RUN_THRIFT_SERVICE) thriftServer.stop
+  }
+
+  // ===============================================================
+  // For Ref
+  // ===============================================================
+
+  def insertRefStorageFor(name: String, element: AnyRef) = {
+    server.insert(
+      TABLE_NAME,
+      name,
+      REF_COLUMN_FAMILY,
+      serializer.out(element),
+      System.currentTimeMillis,
+      BLOCKING_CALL)
+  }
+
+  def getRefStorageFor(name: String): Option[AnyRef] = {
+    try {
+      val column = server.get_column(TABLE_NAME, name, REF_COLUMN_FAMILY)
+      Some(serializer.in(column.value, None))
+    } catch {
+      case e =>
+        e.printStackTrace
+        None 
+    }
+  }
+
+  // ===============================================================
+  // For Vector
+  // ===============================================================
+
+  def insertVectorStorageEntryFor(name: String, element: AnyRef) = {
+    server.insert(
+      TABLE_NAME,
+      name,
+      VECTOR_COLUMN_FAMILY + ":" + getVectorStorageSizeFor(name),
+      serializer.out(element),
+      System.currentTimeMillis,
+      BLOCKING_CALL)
+  }
+
+  def getVectorStorageEntryFor(name: String, index: Int): AnyRef = {                                                                                
+    try {
+      val column = server.get_column(TABLE_NAME, name, VECTOR_COLUMN_FAMILY + ":" + index)
+      serializer.in(column.value, None)
+    } catch {
+      case e =>
+        e.printStackTrace
+        throw new Predef.NoSuchElementException(e.getMessage)
+    }  
+  }
+
+  def getVectorStorageRangeFor(name: String, start: Int, count: Int): List[AnyRef]  =
+    server.get_slice(TABLE_NAME, name, VECTOR_COLUMN_FAMILY, IS_ASCENDING, count)
+      .toArray.toList.asInstanceOf[List[Tuple2[String, AnyRef]]].map(tuple => tuple._2)
+
+  def getVectorStorageSizeFor(name: String): Int =
+    server.get_column_count(TABLE_NAME, name, VECTOR_COLUMN_FAMILY)
+
+  // ===============================================================
+  // For Map
+  // ===============================================================
+
+  def insertMapStorageEntryFor(name: String, key: String, value: AnyRef) = {
+    server.insert(
+      TABLE_NAME, 
+      name,
+      MAP_COLUMN_FAMILY + ":" + key,
+      serializer.out(value),
+      System.currentTimeMillis,
+      BLOCKING_CALL)
+  }
+
+  def insertMapStorageEntriesFor(name: String, entries: List[Tuple2[String, AnyRef]]) = {
+    import java.util.{Map, HashMap, List, ArrayList}
+    val columns: Map[String, List[column_t]] = new HashMap
+    for (entry <- entries) {
+      val cls: List[column_t] = new ArrayList
+      cls.add(new column_t(entry._1, serializer.out(entry._2), System.currentTimeMillis))
+      columns.put(MAP_COLUMN_FAMILY, cls)
+    }
+    server.batch_insert(new batch_mutation_t(
+      TABLE_NAME, 
+      name,
+      columns),
+      BLOCKING_CALL)
+  }
+
+  def getMapStorageEntryFor(name: String, key: AnyRef): Option[AnyRef] = {
+    try {
+      val column = server.get_column(TABLE_NAME, name, MAP_COLUMN_FAMILY + ":" + key)
+      Some(serializer.in(column.value, None))
+    } catch {
+      case e =>
+        e.printStackTrace
+        None
+    }
+  }
+
+  def getMapStorageFor(name: String): List[Tuple2[String, AnyRef]]  = {
+    val columns = server.get_columns_since(TABLE_NAME, name, MAP_COLUMN_FAMILY, -1)
+      .toArray.toList.asInstanceOf[List[org.apache.cassandra.service.column_t]]
+    for {
+      column <- columns
+      col = (column.columnName, serializer.in(column.value, None))
+    } yield col
+  }
+  
+  def getMapStorageSizeFor(name: String): Int =
+    server.get_column_count(TABLE_NAME, name, MAP_COLUMN_FAMILY)
+
+  def removeMapStorageFor(name: String) =
+    server.remove(TABLE_NAME, name, MAP_COLUMN_FAMILY, System.currentTimeMillis, BLOCKING_CALL)
+
+  def getMapStorageRangeFor(name: String, start: Int, count: Int): List[Tuple2[String, AnyRef]] = {
+    server.get_slice(TABLE_NAME, name, MAP_COLUMN_FAMILY, IS_ASCENDING, count)
+            .toArray.toList.asInstanceOf[List[Tuple2[String, AnyRef]]]
+  }
+}
+
 /**
  * NOTE: requires command line options:
  * <br/>
@@ -51,6 +230,18 @@ object CassandraStorage extends Logging {
     }
   }
 
+  implicit def strToBytes(s : String) = s.getBytes("UTF-8")
+  import scala.collection.jcl.Conversions._
+  import se.foldleft.pool._
+  import se.foldleft.cassidy._
+  val cassidy = new Cassidy(StackPool(SocketProvider("localhost", 9160)), Protocol.Binary) // or JSON
+  cassidy.doWork { s => {
+    val user_id = "1"
+    s.++|("users", user_id, "base_attributes:name", "Lord Foo Bar", false)
+    s.++|("users", user_id, "base_attributes:age", "24", false)
+    for( i <- s./("users", user_id, "base_attributes", None, None).toList) println(i)
+  }}
+ 
   // TODO: is this server thread-safe or needed to be wrapped up in an actor?
   private[this] val server = classOf[CassandraServer].newInstance.asInstanceOf[CassandraServer]
 

kernel/src/main/scala/state/State.scala

@@ -13,7 +13,7 @@ import scala.collection.mutable.{ArrayBuffer, HashMap}
 
 sealed abstract class TransactionalStateConfig
 abstract class PersistentStorageConfig  extends TransactionalStateConfig
-case class CassandraStorageConfig extends PersistentStorageConfig
+case class EmbeddedCassandraStorageConfig extends PersistentStorageConfig
 case class TerracottaStorageConfig extends PersistentStorageConfig
 case class TokyoCabinetStorageConfig extends PersistentStorageConfig
 
@@ -22,7 +22,7 @@ case class TokyoCabinetStorageConfig extends PersistentStorageConfig
  * <p/>
  * Example Scala usage:
  * <pre>
- * val myMap = TransactionalState.newPersistentMap(CassandraStorageConfig)
+ * val myMap = TransactionalState.newPersistentMap(EmbeddedCassandraStorageConfig)
  * </pre>
  */
 object TransactionalState extends TransactionalState
@@ -33,24 +33,24 @@ object TransactionalState extends TransactionalState
  * Example Java usage:
  * <pre>
  * TransactionalState state = new TransactionalState();
- * TransactionalMap myMap = state.newPersistentMap(new CassandraStorageConfig());
+ * TransactionalMap myMap = state.newPersistentMap(new EmbeddedCassandraStorageConfig());
  * </pre>
  */
 class TransactionalState {
   def newPersistentMap(config: PersistentStorageConfig): TransactionalMap[String, AnyRef] = config match {
-    case CassandraStorageConfig() => new CassandraPersistentTransactionalMap
+    case EmbeddedCassandraStorageConfig() => new CassandraPersistentTransactionalMap
     case TerracottaStorageConfig() => throw new UnsupportedOperationException
     case TokyoCabinetStorageConfig() => throw new UnsupportedOperationException
   }
 
   def newPersistentVector(config: PersistentStorageConfig): TransactionalVector[AnyRef] = config match {
-    case CassandraStorageConfig() => new CassandraPersistentTransactionalVector
+    case EmbeddedCassandraStorageConfig() => new CassandraPersistentTransactionalVector
     case TerracottaStorageConfig() => throw new UnsupportedOperationException
     case TokyoCabinetStorageConfig() => throw new UnsupportedOperationException
   }
 
   def newPersistentRef(config: PersistentStorageConfig): TransactionalRef[AnyRef] = config match {
-    case CassandraStorageConfig() => new CassandraPersistentTransactionalRef
+    case EmbeddedCassandraStorageConfig() => new CassandraPersistentTransactionalRef
     case TerracottaStorageConfig() => throw new UnsupportedOperationException
     case TokyoCabinetStorageConfig() => throw new UnsupportedOperationException
   }
@@ -208,7 +208,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
   override def getRange(start: Int, count: Int) = {
     verifyTransaction
     try {
-      CassandraStorage.getMapStorageRangeFor(uuid, start, count)
+      EmbeddedCassandraStorage.getMapStorageRangeFor(uuid, start, count)
     } catch {
       case e: Exception => Nil
     }
@@ -216,7 +216,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
 
   // ---- For Transactional ----
   override def commit = {
-    CassandraStorage.insertMapStorageEntriesFor(uuid, changeSet.toList)
+    EmbeddedCassandraStorage.insertMapStorageEntriesFor(uuid, changeSet.toList)
     changeSet.clear
   }
 
@@ -224,7 +224,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
   override def clear = {
     verifyTransaction
     try {
-      CassandraStorage.removeMapStorageFor(uuid)
+      EmbeddedCassandraStorage.removeMapStorageFor(uuid)
     } catch {
       case e: Exception => {}
     }
@@ -233,7 +233,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
   override def contains(key: String): Boolean = {
     try {
       verifyTransaction
-      CassandraStorage.getMapStorageEntryFor(uuid, key).isDefined
+      EmbeddedCassandraStorage.getMapStorageEntryFor(uuid, key).isDefined
     } catch {
       case e: Exception => false
     }
@@ -242,7 +242,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
   override def size: Int = {
     verifyTransaction
     try {
-      CassandraStorage.getMapStorageSizeFor(uuid)
+      EmbeddedCassandraStorage.getMapStorageSizeFor(uuid)
     } catch {
       case e: Exception => 0
     }
@@ -254,7 +254,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
    // if (changeSet.contains(key)) changeSet.get(key)
    // else {
       val result = try {
-        CassandraStorage.getMapStorageEntryFor(uuid, key)
+        EmbeddedCassandraStorage.getMapStorageEntryFor(uuid, key)
       } catch {
         case e: Exception => None
       }
@@ -266,7 +266,7 @@ class CassandraPersistentTransactionalMap extends PersistentTransactionalMap[Str
     //verifyTransaction
     new Iterator[Tuple2[String, AnyRef]] {
       private val originalList: List[Tuple2[String, AnyRef]] = try {
-        CassandraStorage.getMapStorageFor(uuid)
+        EmbeddedCassandraStorage.getMapStorageFor(uuid)
       } catch {
         case e: Throwable => Nil
       }
@@ -388,17 +388,17 @@ class CassandraPersistentTransactionalVector extends PersistentTransactionalVect
   override def get(index: Int): AnyRef = {
     verifyTransaction
     if (changeSet.size > index) changeSet(index)
-    else CassandraStorage.getVectorStorageEntryFor(uuid, index)
+    else EmbeddedCassandraStorage.getVectorStorageEntryFor(uuid, index)
   }
 
   override def getRange(start: Int, count: Int): List[AnyRef] = {
     verifyTransaction
-    CassandraStorage.getVectorStorageRangeFor(uuid, start, count)
+    EmbeddedCassandraStorage.getVectorStorageRangeFor(uuid, start, count)
   }
 
   override def length: Int = {
     verifyTransaction
-    CassandraStorage.getVectorStorageSizeFor(uuid)
+    EmbeddedCassandraStorage.getVectorStorageSizeFor(uuid)
   }
 
   override def apply(index: Int): AnyRef = get(index)
@@ -415,7 +415,7 @@ class CassandraPersistentTransactionalVector extends PersistentTransactionalVect
   // ---- For Transactional ----
   override def commit = {
     // FIXME: should use batch function once the bug is resolved
-    for (element <- changeSet) CassandraStorage.insertVectorStorageEntryFor(uuid, element)
+    for (element <- changeSet) EmbeddedCassandraStorage.insertVectorStorageEntryFor(uuid, element)
     changeSet.clear
   }
 }
@@ -460,7 +460,7 @@ class TransactionalRef[T] extends Transactional {
 
 class CassandraPersistentTransactionalRef extends TransactionalRef[AnyRef] {
   override def commit = if (ref.isDefined) {
-    CassandraStorage.insertRefStorageFor(uuid, ref.get)
+    EmbeddedCassandraStorage.insertRefStorageFor(uuid, ref.get)
     ref = None 
   }
 
@@ -468,7 +468,7 @@ class CassandraPersistentTransactionalRef extends TransactionalRef[AnyRef] {
 
   override def get: Option[AnyRef] = {
     verifyTransaction
-    CassandraStorage.getRefStorageFor(uuid)
+    EmbeddedCassandraStorage.getRefStorageFor(uuid)
   }
 
   override def isDefined: Boolean = get.isDefined

kernel/src/test/scala/PersistentActorSpec.scala

@@ -7,16 +7,16 @@ import junit.framework.TestCase
 import kernel.Kernel
 import kernel.reactor._
 
-import kernel.state.{CassandraStorageConfig, TransactionalState}
+import kernel.state.{EmbeddedCassandraStorageConfig, TransactionalState}
 import org.junit.{Test, Before}
 import org.junit.Assert._
 
 class PersistentActor extends Actor {
   timeout = 100000
   makeTransactionRequired
-  private val mapState = TransactionalState.newPersistentMap(CassandraStorageConfig())
+  private val mapState = TransactionalState.newPersistentMap(EmbeddedCassandraStorageConfig())
-  private val vectorState = TransactionalState.newPersistentVector(CassandraStorageConfig())
+  private val vectorState = TransactionalState.newPersistentVector(EmbeddedCassandraStorageConfig())
-  private val refState = TransactionalState.newPersistentRef(CassandraStorageConfig())
+  private val refState = TransactionalState.newPersistentRef(EmbeddedCassandraStorageConfig())
 
   def receive: PartialFunction[Any, Unit] = {
     case GetMapState(key) =>

samples-scala/src/main/scala/SimpleService.scala

@@ -1,7 +1,7 @@
 package sample.scala
 
 import javax.ws.rs.{Path, GET, Produces}
-import se.scalablesolutions.akka.kernel.state.{TransactionalState, TransactionalMap, CassandraStorageConfig}
+import se.scalablesolutions.akka.kernel.state.{TransactionalState, TransactionalMap, EmbeddedCassandraStorageConfig}
 import se.scalablesolutions.akka.kernel.actor.{Supervisor, SupervisorFactory, Actor, StartSupervisor}
 import se.scalablesolutions.akka.kernel.config.ScalaConfig._
 
@@ -35,7 +35,7 @@ class SimpleService extends Actor {
   case object Tick
   private val KEY = "COUNTER";
   private var hasStartedTicking = false;
-  private val storage = TransactionalState.newPersistentMap(CassandraStorageConfig())
+  private val storage = TransactionalState.newPersistentMap(EmbeddedCassandraStorageConfig())
 
   @GET
   @Produces(Array("application/json"))