mid cassandra rewrite
This commit is contained in:
Jonas Boner
parent
32ef59c67c
commit
31c48dd320
8 changed files with 431 additions and 236 deletions
|
|
@ -4,7 +4,7 @@
|
|||
|
||||
package se.scalablesolutions.akka.kernel.state
|
||||
|
||||
import java.io.File
|
||||
import java.io.{File, Flushable, Closeable}
|
||||
|
||||
import kernel.util.Logging
|
||||
import serialization.{Serializer, Serializable, SerializationProtocol}
|
||||
|
|
@ -12,11 +12,12 @@ import serialization.{Serializer, Serializable, SerializationProtocol}
|
|||
import org.apache.cassandra.config.DatabaseDescriptor
|
||||
import org.apache.cassandra.service._
|
||||
|
||||
import org.apache.thrift.server.TThreadPoolServer
|
||||
import org.apache.thrift.protocol.TBinaryProtocol
|
||||
import org.apache.thrift.transport.TServerSocket
|
||||
import org.apache.thrift.transport.TTransportFactory
|
||||
//import org.apache.thrift.server.TThreadPoolServer
|
||||
import org.apache.thrift.TProcessorFactory
|
||||
import org.apache.thrift.transport._
|
||||
import org.apache.thrift._
|
||||
import org.apache.thrift.transport._
|
||||
import org.apache.thrift.protocol._
|
||||
|
||||
/**
|
||||
* NOTE: requires command line options:
|
||||
|
|
@ -25,6 +26,300 @@ import org.apache.thrift.TProcessorFactory
|
|||
* <p/>
|
||||
* @author <a href="http://jonasboner.com">Jonas Bonér</a>
|
||||
*/
|
||||
object CassandraStorage 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
|
||||
|
||||
import kernel.Kernel.config
|
||||
|
||||
val CASSANDRA_SERVER_HOSTNAME = config.getString("akka.storage.cassandra.hostname", "localhost")
|
||||
val CASSANDRA_SERVER_PORT = config.getInt("akka.storage.cassandra.port", 9160)
|
||||
val BLOCKING_CALL = if (config.getBool("akka.storage.cassandra.blocking", true)) 0
|
||||
else 1
|
||||
|
||||
@volatile private[this] var isRunning = false
|
||||
private[this] val protocol: Protocol = {
|
||||
config.getString("akka.storage.cassandra.storage-format", "binary") match {
|
||||
case "binary" => Protocol.Binary
|
||||
case "json" => Protocol.JSON
|
||||
case "simple-json" => Protocol.SimpleJSON
|
||||
case unknown => throw new UnsupportedOperationException("Unknown storage serialization protocol [" + unknown + "]")
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
private[this] var sessions: Option[CassandraSessionPool[_]] = None
|
||||
|
||||
def start = synchronized {
|
||||
if (!isRunning) {
|
||||
try {
|
||||
sessions = Some(new CassandraSessionPool(StackPool(SocketProvider(CASSANDRA_SERVER_HOSTNAME, CASSANDRA_SERVER_PORT)), protocol))
|
||||
log.info("Cassandra persistent storage has started up successfully");
|
||||
} catch {
|
||||
case e =>
|
||||
log.error("Could not start up Cassandra persistent storage")
|
||||
throw e
|
||||
}
|
||||
isRunning
|
||||
}
|
||||
}
|
||||
|
||||
def stop = synchronized {
|
||||
if (isRunning && sessions.isDefined) sessions.get.close
|
||||
}
|
||||
|
||||
//implicit def strToBytes(s: String) = s.getBytes("UTF-8")
|
||||
|
||||
/*
|
||||
def insertRefStorageFor(name: String, element: AnyRef) = sessions.withSession { session => {
|
||||
val user_id = "1"
|
||||
session ++| ("users", user_id, "base_attributes:name", "Lord Foo Bar", false)
|
||||
session ++| ("users", user_id, "base_attributes:age", "24", false)
|
||||
for( i <- session / ("users", user_id, "base_attributes", None, None).toList) println(i)
|
||||
}}
|
||||
*/
|
||||
// ===============================================================
|
||||
// For Ref
|
||||
// ===============================================================
|
||||
|
||||
def insertRefStorageFor(name: String, element: String) = if (sessions.isDefined) {
|
||||
sessions.get.withSession {
|
||||
_ ++| (
|
||||
TABLE_NAME,
|
||||
name,
|
||||
REF_COLUMN_FAMILY,
|
||||
element,
|
||||
System.currentTimeMillis,
|
||||
BLOCKING_CALL)
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def getRefStorageFor(name: String): Option[String] = if (sessions.isDefined) {
|
||||
try {
|
||||
val column = sessions.get.withSession { _ | (TABLE_NAME, name, REF_COLUMN_FAMILY) }
|
||||
Some(column.value)
|
||||
} catch {
|
||||
case e =>
|
||||
e.printStackTrace
|
||||
None
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
// ===============================================================
|
||||
// For Vector
|
||||
// ===============================================================
|
||||
|
||||
def insertVectorStorageEntryFor(name: String, element: String) = if (sessions.isDefined) {
|
||||
sessions.get.withSession {
|
||||
_ ++| (
|
||||
TABLE_NAME,
|
||||
name,
|
||||
VECTOR_COLUMN_FAMILY + ":" + getVectorStorageSizeFor(name),
|
||||
element,
|
||||
System.currentTimeMillis,
|
||||
BLOCKING_CALL)
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def getVectorStorageEntryFor(name: String, index: Int): String = if (sessions.isDefined) {
|
||||
try {
|
||||
val column = sessions.get.withSession { _ | (TABLE_NAME, name, VECTOR_COLUMN_FAMILY + ":" + index) }
|
||||
column.value
|
||||
} catch {
|
||||
case e =>
|
||||
e.printStackTrace
|
||||
throw new NoSuchElementException(e.getMessage)
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def getVectorStorageRangeFor(name: String, start: Int, count: Int): List[String] = if (sessions.isDefined) {
|
||||
sessions.get.withSession { _ / (TABLE_NAME, name, VECTOR_COLUMN_FAMILY, IS_ASCENDING, count) }.map(_.value)
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def getVectorStorageSizeFor(name: String): Int = if (sessions.isDefined) {
|
||||
sessions.get.withSession { _ |# (TABLE_NAME, name, VECTOR_COLUMN_FAMILY) }
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
// ===============================================================
|
||||
// For Map
|
||||
// ===============================================================
|
||||
|
||||
def insertMapStorageEntryFor(name: String, key: String, value: String) = if (sessions.isDefined) {
|
||||
sessions.get.withSession {
|
||||
_ ++| (
|
||||
TABLE_NAME,
|
||||
name,
|
||||
MAP_COLUMN_FAMILY + ":" + key,
|
||||
value,
|
||||
System.currentTimeMillis,
|
||||
BLOCKING_CALL)
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def insertMapStorageEntriesFor(name: String, entries: List[Tuple2[String, String]]) = if (sessions.isDefined) {
|
||||
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, entry._2, System.currentTimeMillis))
|
||||
columns.put(MAP_COLUMN_FAMILY, cls)
|
||||
}
|
||||
sessions.get.withSession {
|
||||
_ ++| (
|
||||
new batch_mutation_t(
|
||||
TABLE_NAME,
|
||||
name,
|
||||
columns),
|
||||
BLOCKING_CALL)
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def getMapStorageEntryFor(name: String, key: String): Option[String] = if (sessions.isDefined) {
|
||||
try {
|
||||
val column = sessions.get.withSession { _ | (TABLE_NAME, name, MAP_COLUMN_FAMILY + ":" + key) }
|
||||
Some(column.value)
|
||||
} catch {
|
||||
case e =>
|
||||
e.printStackTrace
|
||||
None
|
||||
}
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
/*
|
||||
def getMapStorageFor(name: String): List[Tuple2[String, String]] = if (sessions.isDefined) {
|
||||
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, column.value)
|
||||
} yield col
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
*/
|
||||
|
||||
def getMapStorageSizeFor(name: String): Int = if (sessions.isDefined) {
|
||||
sessions.get.withSession { _ |# (TABLE_NAME, name, MAP_COLUMN_FAMILY) }
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def removeMapStorageFor(name: String) = if (sessions.isDefined) {
|
||||
sessions.get.withSession { _ -- (TABLE_NAME, name, MAP_COLUMN_FAMILY, System.currentTimeMillis, BLOCKING_CALL) }
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
|
||||
def getMapStorageRangeFor(name: String, start: Int, count: Int): List[Tuple2[String, String]] = if (sessions.isDefined) {
|
||||
sessions.get.withSession { _ / (TABLE_NAME, name, MAP_COLUMN_FAMILY, IS_ASCENDING, count) }.toArray.toList.asInstanceOf[List[Tuple2[String, String]]]
|
||||
} else throw new IllegalStateException("CassandraStorage is not started")
|
||||
}
|
||||
|
||||
trait CassandraSession extends Closeable with Flushable {
|
||||
import scala.collection.jcl.Conversions._
|
||||
import org.scala_tools.javautils.Imports._
|
||||
|
||||
private implicit def null2Option[T](t: T): Option[T] = if(t != null) Some(t) else None
|
||||
|
||||
protected val client: Cassandra.Client
|
||||
|
||||
val obtainedAt: Long
|
||||
|
||||
def /(tableName: String, key: String, columnParent: String, start: Option[Int],end: Option[Int]): List[column_t] =
|
||||
client.get_slice(tableName, key, columnParent, start.getOrElse(-1),end.getOrElse(-1)).toList
|
||||
|
||||
def /(tableName: String, key: String, columnParent: String, colNames: List[String]): List[column_t] =
|
||||
client.get_slice_by_names(tableName, key, columnParent, colNames.asJava ).toList
|
||||
|
||||
def |(tableName: String, key: String, colPath: String): Option[column_t] =
|
||||
client.get_column(tableName, key, colPath)
|
||||
|
||||
def |#(tableName: String, key: String, columnParent: String): Int =
|
||||
client.get_column_count(tableName, key, columnParent)
|
||||
|
||||
def ++|(tableName: String, key: String, columnPath: String, cellData: Array[Byte], timestamp: Long, block: Int) =
|
||||
client.insert(tableName, key, columnPath, cellData,timestamp,block)
|
||||
|
||||
def ++|(tableName: String, key: String, columnPath: String, cellData: Array[Byte], block: Int) =
|
||||
client.insert(tableName,key,columnPath,cellData,obtainedAt,block)
|
||||
|
||||
def ++|(batch: batch_mutation_t, block: Int) =
|
||||
client.batch_insert(batch, block)
|
||||
|
||||
def --(tableName: String, key: String, columnPathOrParent: String, timestamp: Long, block: Int) =
|
||||
client.remove(tableName, key, columnPathOrParent, timestamp, block)
|
||||
|
||||
def --(tableName: String, key: String, columnPathOrParent: String, block: Int) =
|
||||
client.remove(tableName, key, columnPathOrParent, obtainedAt, block)
|
||||
|
||||
def /@(tableName: String, key: String, columnParent: String, timestamp: Long): List[column_t] =
|
||||
client.get_columns_since(tableName, key, columnParent, timestamp).toList
|
||||
|
||||
def /^(tableName: String, key: String, columnFamily: String, start: Option[Int], end: Option[Int], count: Int ): List[superColumn_t] =
|
||||
client.get_slice_super(tableName, key,columnFamily, start.getOrElse(-1), end.getOrElse(-1)).toList //TODO upgrade thrift interface to support count
|
||||
|
||||
def /^(tableName: String, key: String, columnFamily: String, superColNames: List[String]): List[superColumn_t] =
|
||||
client.get_slice_super_by_names(tableName, key, columnFamily, superColNames.asJava).toList
|
||||
|
||||
def |^(tableName: String, key: String, superColumnPath: String): Option[superColumn_t] =
|
||||
client.get_superColumn(tableName,key,superColumnPath)
|
||||
|
||||
def ++|^ (batch: batch_mutation_super_t, block: Int) =
|
||||
client.batch_insert_superColumn(batch, block)
|
||||
|
||||
def keys(tableName: String, startsWith: String, stopsAt: String, maxResults: Option[Int]): List[String] =
|
||||
client.get_key_range(tableName, startsWith, stopsAt, maxResults.getOrElse(-1)).toList
|
||||
|
||||
def property(name: String): String = client.getStringProperty(name)
|
||||
def properties(name: String): List[String] = client.getStringListProperty(name).toList
|
||||
def describeTable(tableName: String) = client.describeTable(tableName)
|
||||
|
||||
def ?(query: String) = client.executeQuery(query)
|
||||
}
|
||||
|
||||
class CassandraSessionPool[T <: TTransport](transportPool: Pool[T], inputProtocol: Protocol, outputProtocol: Protocol) extends Closeable {
|
||||
def this(transportPool: Pool[T], ioProtocol: Protocol) = this(transportPool,ioProtocol,ioProtocol)
|
||||
|
||||
def newSession: CassandraSession = {
|
||||
val t = transportPool.borrowObject
|
||||
val c = new Cassandra.Client(inputProtocol(t),outputProtocol(t))
|
||||
new CassandraSession {
|
||||
val client = c
|
||||
val obtainedAt = System.currentTimeMillis
|
||||
def flush = t.flush
|
||||
def close = transportPool.returnObject(t)
|
||||
}
|
||||
}
|
||||
|
||||
def withSession[R](body: CassandraSession => R) = {
|
||||
val session = newSession
|
||||
try {
|
||||
val result = body(session)
|
||||
session.flush
|
||||
result
|
||||
} finally {
|
||||
session.close
|
||||
}
|
||||
}
|
||||
|
||||
def close = transportPool.close
|
||||
}
|
||||
|
||||
sealed abstract class Protocol(val factory: TProtocolFactory) {
|
||||
def apply(transport: TTransport) = factory.getProtocol(transport)
|
||||
}
|
||||
|
||||
object Protocol {
|
||||
object Binary extends Protocol(new TBinaryProtocol.Factory)
|
||||
object SimpleJSON extends Protocol(new TSimpleJSONProtocol.Factory)
|
||||
object JSON extends Protocol(new TJSONProtocol.Factory)
|
||||
}
|
||||
|
||||
/**
|
||||
* NOTE: requires command line options:
|
||||
* <br/>
|
||||
* <code>-Dcassandra -Dstorage-config=config/ -Dpidfile=akka.pid</code>
|
||||
* <p/>
|
||||
* @author <a href="http://jonasboner.com">Jonas Bonér</a>
|
||||
*
|
||||
object EmbeddedCassandraStorage extends Logging {
|
||||
val TABLE_NAME = "akka"
|
||||
val MAP_COLUMN_FAMILY = "map"
|
||||
|
|
@ -88,7 +383,7 @@ object EmbeddedCassandraStorage extends Logging {
|
|||
TABLE_NAME,
|
||||
name,
|
||||
REF_COLUMN_FAMILY,
|
||||
serializer.out(element),
|
||||
element,
|
||||
System.currentTimeMillis,
|
||||
BLOCKING_CALL)
|
||||
}
|
||||
|
|
@ -113,7 +408,7 @@ object EmbeddedCassandraStorage extends Logging {
|
|||
TABLE_NAME,
|
||||
name,
|
||||
VECTOR_COLUMN_FAMILY + ":" + getVectorStorageSizeFor(name),
|
||||
serializer.out(element),
|
||||
element,
|
||||
System.currentTimeMillis,
|
||||
BLOCKING_CALL)
|
||||
}
|
||||
|
|
@ -197,196 +492,6 @@ object EmbeddedCassandraStorage extends Logging {
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* NOTE: requires command line options:
|
||||
* <br/>
|
||||
* <code>-Dcassandra -Dstorage-config=config/ -Dpidfile=akka.pid</code>
|
||||
* <p/>
|
||||
* @author <a href="http://jonasboner.com">Jonas Bonér</a>
|
||||
*/
|
||||
object CassandraStorage 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 + "]")
|
||||
}
|
||||
}
|
||||
|
||||
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]
|
||||
|
||||
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]]]
|
||||
}
|
||||
}
|
||||
|
||||
class CassandraThriftServer(server: CassandraServer) extends Logging {
|
||||
case object Start
|
||||
|
|
@ -431,3 +536,4 @@ class CassandraThriftServer(server: CassandraServer) extends Logging {
|
|||
def start = serverDaemon ! Start
|
||||
def stop = serverDaemon ! Stop
|
||||
}
|
||||
*/
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue