本文整理汇总了Scala中com.datastax.driver.core.Cluster类的典型用法代码示例。如果您正苦于以下问题:Scala Cluster类的具体用法?Scala Cluster怎么用?Scala Cluster使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Cluster类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Scala代码示例。
示例1: Validator
//设置package包名称以及导入依赖的类
package com.bwsw.tstreams.velocity
import java.net.InetSocketAddress
import java.util.UUID
import com.datastax.driver.core.Cluster
import scala.collection.mutable.ListBuffer
object Validator {
def isSorted(list: ListBuffer[UUID]): Boolean = {
if (list.isEmpty)
return true
var curVal = list.head
var v = 0
list foreach { el =>
if (el.timestamp() < curVal.timestamp()) {
println(s"value=$v")
return false
}
if (el.timestamp() > curVal.timestamp())
curVal = el
v += 1
}
true
}
def main(args: Array[String]) {
// if (args.length != 1)
// throw new IllegalArgumentException("specify [keyspace]")
// val keyspace = args(0)
val cluster = Cluster.builder().addContactPointsWithPorts(new InetSocketAddress("176.120.27.82", 9042)).build()
val session = cluster.connect()
val set = session.execute(s"select * from velocity.commit_log").all()
val it = set.iterator()
val buffers = scala.collection.mutable.Map[Int, ListBuffer[UUID]]()
while (it.hasNext) {
val row = it.next()
val partition = row.getInt("partition")
val uuid = row.getUUID("transaction")
if (!buffers.contains(partition)) {
buffers(partition) = ListBuffer(uuid)
} else {
buffers(partition) += uuid
}
}
val checkVal = buffers.map(x => isSorted(x._2)).reduceLeft((a, b) => a & b)
if (checkVal)
println("sorted")
else
println("not sorted")
cluster.close()
session.close()
}
}
开发者ID:bwsw,项目名称:t-streams-pts-benchmark,代码行数:62,代码来源:Validator.scala
示例2: Connector
//设置package包名称以及导入依赖的类
package connector
import com.datastax.driver.core.{Session, Cluster}
import com.websudos.phantom.connectors.{KeySpace, SessionProvider}
trait CassandraConnector extends SessionProvider {
implicit val space: KeySpace = Connector.keySpace
val cluster = Connector.cluster
override implicit lazy val session = Connector.session
}
object Connector {
val keySpace = KeySpace("MovieLens")
val cluster = Cluster.builder().addContactPoint("192.168.99.100").build()
val session = cluster.connect(keySpace.name)
}
开发者ID:abhitechdojo,项目名称:MovieLensWebServices,代码行数:19,代码来源:CassandraConnector.scala
示例3: AwsS3USWest1ConnectionFactoryTest
//设置package包名称以及导入依赖的类
package co.verdigris.spark.connector.cql
import com.datastax.driver.core.Cluster
class AwsS3USWest1ConnectionFactoryTest extends ConnectionFactorySpec {
override def beforeAll {
super.beforeAll
factory = AwsS3USWest1ConnectionFactory
}
describe(".clusterBuilder") {
it("should return a new Cluster.Builder instance") {
factory.clusterBuilder(cassandraConf) shouldBe a [Cluster.Builder]
}
}
describe(".createCluster") {
it("should return a new Cluster instance") {
factory.createCluster(cassandraConf) shouldBe a [Cluster]
}
}
}
开发者ID:VerdigrisTech,项目名称:spark-cassandra-connection-factory,代码行数:24,代码来源:AwsS3USWest1ConnectionFactoryTest.scala
示例4: MetadataCreator
//设置package包名称以及导入依赖的类
package com.bwsw.tstreams.velocity
import com.bwsw.tstreams.common.CassandraHelper
import com.datastax.driver.core.Cluster
object MetadataCreator {
def main(args: Array[String]) {
import Common._
val cluster = Cluster.builder().addContactPoint("localhost").build()
val session = cluster.connect()
try {
session.execute(s"DROP KEYSPACE $keyspace")
}
catch {
case e: Exception => println(s"msg=${e.getMessage}")
}
CassandraHelper.createKeyspace(session, keyspace)
CassandraHelper.createMetadataTables(session, keyspace)
cluster.close()
session.close()
}
}
开发者ID:bwsw,项目名称:t-streams-pts-benchmark,代码行数:23,代码来源:MetadataCreator.scala
示例5: Config
//设置package包名称以及导入依赖的类
package conf.connection
import java.net.InetAddress
import com.datastax.driver.core.Cluster
import com.typesafe.config.ConfigFactory
import com.websudos.phantom.connectors.{KeySpace, SessionProvider}
import com.websudos.phantom.dsl.Session
import scala.collection.JavaConversions._
object Config {
val config = ConfigFactory.load()
}
trait DefaultsConnector extends SessionProvider {
val config = ConfigFactory.load()
implicit val space: KeySpace = DataConnection.keySpace
val cluster = DataConnection.cluster
override implicit lazy val session: Session = DataConnection.session
}
object DataConnection {
val config = ConfigFactory.load()
val hosts: Seq[String] = Config.config.getStringList("cassandra.host").toList
val inets = hosts.map(InetAddress.getByName)
val keySpace: KeySpace = KeySpace(Config.config.getString("cassandra.keyspace"))
val cluster =
Cluster.builder()
.addContactPoints(inets)
.withClusterName(Config.config.getString("cassandra.cluster"))
// .withCredentials(config.getString("cassandra.username"), config.getString("cassandra.password"))
.build()
val session: Session = cluster.connect(keySpace.name)
}
开发者ID:Masebeni,项目名称:hwork,代码行数:39,代码来源:Connection.scala
示例6: Config
//设置package包名称以及导入依赖的类
package conf.connection
import java.net.InetAddress
import com.datastax.driver.core.Cluster
import com.mongodb.casbah.{MongoDB, MongoClientURI, MongoClient}
import com.typesafe.config.ConfigFactory
import com.websudos.phantom.connectors.{KeySpace, SessionProvider}
import com.websudos.phantom.dsl.Session
import scala.collection.JavaConversions._
object Config {
val config = ConfigFactory.load()
}
object HashDB {
def getConnection(): MongoDB={
val hosts = Config.config.getString("mongodb.host")
val database = Config.config.getString("mongodb.database")
val uri = MongoClientURI(hosts)
MongoClient(uri)(database)
}
}
trait DefaultsConnector extends SessionProvider {
val config = ConfigFactory.load()
implicit val space: KeySpace = DataConnection.keySpace
val cluster = DataConnection.cluster
override implicit lazy val session: Session = DataConnection.session
}
object DataConnection {
val config = ConfigFactory.load()
val hosts: Seq[String] = Config.config.getStringList("cassandra.host").toList
val inets = hosts.map(InetAddress.getByName)
val keySpace: KeySpace = KeySpace(Config.config.getString("cassandra.keyspace"))
val cluster =
Cluster.builder()
.addContactPoints(inets)
.withClusterName(Config.config.getString("cassandra.cluster"))
// .withCredentials(config.getString("cassandra.username"), config.getString("cassandra.password"))
.build()
val session: Session = cluster.connect(keySpace.name)
}
开发者ID:Thulebona,项目名称:hashpvtapi,代码行数:50,代码来源:Connection.scala
示例7: CassandraAsyncContextImpl
//设置package包名称以及导入依赖的类
package data
import javax.inject.{Inject, Singleton}
import com.datastax.driver.core.{Cluster, Session}
import com.typesafe.config.Config
import io.getquill.{CassandraAsyncContext, SnakeCase}
import play.api.inject.ApplicationLifecycle
import play.api.{Configuration, Environment, Logger}
import util.FutureUtils.toFutureUnit
import scala.concurrent.ExecutionContext
@Singleton
class CassandraAsyncContextImpl @Inject()(cassandra: CassandraCluster, conf: CassandraConfig)
extends CassandraAsyncContext[SnakeCase](cassandra.cluster, conf.keySpace, 100L)
@Singleton
class CassandraCluster @Inject()(conf: CassandraConfig, appLifecycle: ApplicationLifecycle)(implicit executor: ExecutionContext) {
import conf._
private[data] val cluster =
Cluster.builder()
.addContactPoints(hosts: _*)
.withPort(port)
.build()
private[data] def noKeySpaceSession: Session = cluster.connect()
private[data] def stop() = toFutureUnit(cluster.closeAsync())
Logger.info(s"Cassandra host to be used: '${hosts.mkString(",")}' with port:$port")
appLifecycle.addStopHook(() => stop())
}
@Singleton
class CassandraConfig @Inject()(configuration: Configuration, environment: Environment) {
val config: Config = configuration.underlying
val keySpace = config.getString("devgym.db.cassandra.keyspace")
val port = config.getInt("devgym.db.cassandra.port")
val hosts: Seq[String] =
configuration.getStringSeq("devgym.db.cassandra.hosts").get
}
开发者ID:DmytroOrlov,项目名称:devgym,代码行数:47,代码来源:CassandraCluster.scala
示例8: CassandraSpec
//设置package包名称以及导入依赖的类
package hmda.query.cassandra
import com.datastax.driver.core.{ Cluster, Session }
import org.scalatest.{ BeforeAndAfterAll, MustMatchers, WordSpec }
import org.cassandraunit.CQLDataLoader
import org.cassandraunit.dataset.cql.ClassPathCQLDataSet
import org.cassandraunit.utils.EmbeddedCassandraServerHelper
class CassandraSpec extends WordSpec with MustMatchers with BeforeAndAfterAll {
var cluster: Cluster = _
var session: Session = _
override def beforeAll(): Unit = {
EmbeddedCassandraServerHelper.startEmbeddedCassandra(60000L)
cluster = EmbeddedCassandraServerHelper.getCluster
session = cluster.connect()
loadData()
}
override def afterAll(): Unit = {
EmbeddedCassandraServerHelper.cleanEmbeddedCassandra()
}
def loadData(): Unit = {
val dataLoader = new CQLDataLoader(session)
dataLoader.load(new ClassPathCQLDataSet("simple.cql", "hmda_query"))
}
"Cassandra" must {
"Select from table" in {
val resultSet = session.execute("select * from myTable where id = 'myKey01'")
resultSet.iterator().next().getString("value") mustBe "myValue01"
}
}
}
开发者ID:cfpb,项目名称:hmda-platform,代码行数:38,代码来源:CassandraSpec.scala
示例9: CassandraDao
//设置package包名称以及导入依赖的类
package io.gzet.story.web.dao
import com.datastax.driver.core.Cluster
import io.gzet.story.model.Article
import io.gzet.story.util.SimhashUtils._
import io.gzet.story.web.SimpleConfig
import scala.collection.JavaConversions._
import scala.language.postfixOps
class CassandraDao() extends SimpleConfig {
private val cluster = Cluster.builder().addContactPoint(cassandraHost).withPort(cassandraPort).build()
val session = cluster.connect()
def count(): Long = {
val stmt = s"SELECT count(*) FROM $cassandraKeyspace.$cassandraTable;"
val results = session.execute(stmt).all()
results map { row =>
row.getLong(0)
} head
}
def findDuplicates(hash: Int): List[Article] = {
searchmasks flatMap { mask =>
val searchHash = mask ^ hash
val stmt = s"SELECT hash, url, title, body FROM $cassandraKeyspace.$cassandraTable WHERE hash = $searchHash;"
val results = session.execute(stmt).all()
results map { row =>
Article(row.getInt("hash"), row.getString("body"), row.getString("title"), row.getString("url"))
}
} toList
}
}
开发者ID:PacktPublishing,项目名称:Mastering-Spark-for-Data-Science,代码行数:36,代码来源:CassandraDao.scala
示例10: Config
//设置package包名称以及导入依赖的类
package conf.connection
import java.net.InetAddress
import com.datastax.driver.core.Cluster
import com.typesafe.config.ConfigFactory
import com.websudos.phantom.connectors.{KeySpace, SessionProvider}
import com.websudos.phantom.dsl.Session
import scala.collection.JavaConversions._
object Config {
val config = ConfigFactory.load()
}
trait DefaultsConnector extends SessionProvider {
val config = ConfigFactory.load()
implicit val space: KeySpace = DataConnection.keySpace
val cluster = DataConnection.cluster
override implicit lazy val session: Session = DataConnection.session
}
object DataConnection {
val config = ConfigFactory.load()
val hosts: Seq[String] = Config.config.getStringList("cassandra.host").toList
val inets = hosts.map(InetAddress.getByName)
val keySpace: KeySpace = KeySpace(Config.config.getString("cassandra.keyspace"))
val cluster =
Cluster.builder()
.addContactPoints(inets)
.withClusterName(Config.config.getString("cassandra.cluster"))
// .withCredentials(config.getString("cassandra.username"), config.getString("cassandra.password"))
.build()
val session: Session = cluster.connect(keySpace.name)
}
开发者ID:roclet,项目名称:hashworkapi,代码行数:40,代码来源:Connection.scala
示例11: Launcher
//设置package包名称以及导入依赖的类
package com.knoldus
import com.datastax.driver.core.{Cluster, ResultSet, Session}
import com.knoldus.utils.ConfigReader
import scala.collection.JavaConversions
import scala.util.{Failure, Success, Try}
object Launcher extends App {
Try {
CassandraConnector.getCasssandraBuilder
} match {
case Success(cluster) =>
val session = getCassandraSession(ConfigReader.getKeyspaceName, cluster)
QueryHandler.runQuery(session)
session.close()
cluster.close()
case Failure(exception) => println("Unable to Connect to Cassandra" + exception)
}
private def getCassandraSession(keyspace: String, cluster: Cluster): Session = {
Try{
CassandraConnector.getSession(keyspace, cluster)
} match {
case Success(session) => session
case Failure(exception) => throw new Exception("Unable to connect to keyspace" + exception)
}
}
}
开发者ID:SangeetaGulia,项目名称:activator-cassandra-scala-template.g8,代码行数:36,代码来源:Launcher.scala
示例12: DatabaseUtil
//设置package包名称以及导入依赖的类
package com.yper.utils
import com.datastax.driver.core.{Cluster, Session}
object DatabaseUtil {
val keyspace = "yper"
def getSession: Session = DatabaseUtil.synchronized {
try {
val builder = Cluster
.builder()
.addContactPoint("localhost")
.withPort(9042)
.build()
builder.connect(keyspace)
} catch {
case e: Exception => {
println(e.getMessage)
throw e
}
}
}
}
开发者ID:vi-kas,项目名称:yper,代码行数:27,代码来源:DatabaseUtil.scala
示例13: CassandraFactory
//设置package包名称以及导入依赖的类
package com.bwsw.sj.common.utils
import java.net.InetSocketAddress
import com.bwsw.tstreams.common.{CassandraConnectorConf, CassandraHelper}
import com.bwsw.tstreams.data.cassandra.Factory
import com.bwsw.tstreams.metadata.MetadataStorageFactory
import com.datastax.driver.core.{Cluster, Session}
class CassandraFactory {
import scala.collection.JavaConverters._
private var cluster: Cluster = null
private var session: Session = null
private var cassandraConnectorConf: CassandraConnectorConf = null
private val metadataStorageFactory = new MetadataStorageFactory()
private val dataStorageFactory = new Factory()
def open(hosts: Set[(String, Int)]) = {
val cassandraHosts = hosts.map(s => new InetSocketAddress(s._1, s._2))
cluster = Cluster.builder().addContactPointsWithPorts(cassandraHosts.toList.asJava).build()
session = cluster.connect()
cassandraConnectorConf = CassandraConnectorConf.apply(cassandraHosts)
}
def getDataStorage(keyspace: String) = {
dataStorageFactory.getInstance(
cassandraConnectorConf,
keyspace = keyspace)
}
def getMetadataStorage(keyspace: String) = {
metadataStorageFactory.getInstance(
cassandraConnectorConf,
keyspace = keyspace)
}
def createKeyspace(keyspace: String) = {
CassandraHelper.createKeyspace(session, keyspace)
}
def createDataTable(keyspace: String) = {
CassandraHelper.createDataTable(session, keyspace)
}
def createMetadataTables(keyspace: String) = {
CassandraHelper.createMetadataTables(session, keyspace)
}
def dropKeyspace(keyspace: String) = {
CassandraHelper.dropKeyspace(session, keyspace)
}
def close() = {
metadataStorageFactory.closeFactory()
session.close()
cluster.close()
}
}
开发者ID:bwsw,项目名称:sj-platform,代码行数:61,代码来源:CassandraFactory.scala
示例14: Post
//设置package包名称以及导入依赖的类
package demo6
import java.util.UUID
import com.datastax.driver.core.{Row, Cluster, Session}
import troy.dsl._
import troy.driver.DSL._
import scala.concurrent.Await
import scala.concurrent.duration.Duration
case class Post(id: UUID, title: String)
object Main extends App {
import scala.concurrent.ExecutionContext.Implicits.global
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val create = withSchema {
(authorId: String, title: String) =>
cql"""
INSERT INTO test.posts (author_id , post_id , post_title )
VALUES ( $authorId, now(), $title);
""".prepared.executeAsync
}
val listByAuthor = withSchema {
(authorId: String) =>
cql"""
SELECT post_id, post_title
FROM test.posts
WHERE author_id = $authorId
"""
.prepared
.executeAsync
.as(Post)
}
println(Await.result(create("test", "title"), Duration(1, "second")))
println(Await.result(listByAuthor("test"), Duration(1, "second")))
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:50,代码来源:Main.scala
示例15: Post
//设置package包名称以及导入依赖的类
package demo2
import java.util.UUID
import com.datastax.driver.core.{Row, Cluster, Session}
import troy.dsl._
import troy.driver.DSL._
import scala.concurrent.Await
import scala.concurrent.duration.Duration
case class Post(id: UUID, title: String)
object Main extends App {
import scala.concurrent.ExecutionContext.Implicits.global
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val listByAuthor = withSchema {
(authorId: String) =>
cql"""
SELECT post_id, post_title
FROM test.posts
WHERE author_id = $authorId
"""
.prepared
.executeAsync
.as(Post)
}
val result = listByAuthor("test")
println(Await.result(result, Duration(1, "second")))
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:42,代码来源:Main.scala
示例16: Main
//设置package包名称以及导入依赖的类
package demo1
import com.datastax.driver.core.{Cluster, Session}
import troy.dsl._
import troy.driver.DSL._
import scala.concurrent.ExecutionContext.Implicits.global
object Main extends App {
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val listByAuthor = withSchema {
(authorId: String) =>
cql"""
SELECT post_id, post_title
FROM test.posts
WHERE author_id = $authorId
""".prepared.executeAsync
}
println(listByAuthor("test"))
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:32,代码来源:Main.scala
示例17: Post
//设置package包名称以及导入依赖的类
package demo4
import java.util.UUID
import com.datastax.driver.core.{Cluster, Session}
import troy.dsl._
import scala.concurrent.Await
import scala.concurrent.duration.Duration
case class Post(id: UUID, title: String)
object Main extends App {
import scala.concurrent.ExecutionContext.Implicits.global
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val listByTag = withSchema {
(tag: String) =>
cql"""
SELECT post_id, post_title
FROM test.posts
WHERE post_tags CONTAINS $tag
""".prepared.as(Post)
}
val titlesF = listByTag("test").map(_.map(_.title))
val titles = Await.result(titlesF, Duration(1, "second"))
println("Matching titles:")
titles.foreach(println)
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:39,代码来源:Main.scala
示例18: Post
//设置package包名称以及导入依赖的类
package demo5
import java.util.UUID
import com.datastax.driver.core.{Cluster, Session}
import troy.dsl._
import scala.concurrent.Await
import scala.concurrent.duration.Duration
case class Post(id: UUID, comments: Map[Int, String])
object Main extends App {
import scala.concurrent.ExecutionContext.Implicits.global
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val getCommentsByLine = withSchema {
(authorId: String, postId: UUID, line: Int) =>
cql"""
SELECT post_id, comments
FROM test.posts
WHERE author_id = $authorId
AND post_id = $postId
AND comments CONTAINS KEY $line
""".prepared.as(Post)
}
val postId = UUID.fromString("a4a70900-24e1-11df-8924-001ff3591711")
println(Await.result(getCommentsByLine("test", postId, 5), Duration(1, "second")))
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:39,代码来源:Main.scala
示例19: Post
//设置package包名称以及导入依赖的类
package demo3
import java.util.UUID
import com.datastax.driver.core.{Row, Cluster, Session}
import troy.dsl._
import troy.driver.DSL._
import scala.concurrent.Await
import scala.concurrent.duration.Duration
case class Post(id: UUID, title: String)
object Main extends App {
import scala.concurrent.ExecutionContext.Implicits.global
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val get = withSchema {
(authorId: String, postId: UUID) =>
cql"""
SELECT post_id, post_title
FROM test.posts
WHERE author_id = $authorId AND post_id = $postId
"""
.prepared
.executeAsync
.oneOption
.as(Post)
}
val result = get("test", UUID.fromString("a4a70900-24e1-11df-8924-001ff3591711"))
val maybePost: Option[Post] = Await.result(result, Duration(1, "second"))
println(maybePost.map(_.title).getOrElse("Post not found"))
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:44,代码来源:Main.scala
示例20: Post
//设置package包名称以及导入依赖的类
package demo1
import java.util.UUID
import com.datastax.driver.core.{Cluster, Session}
import troy.dsl._
import scala.concurrent.Await
import scala.concurrent.duration.Duration
case class Post(id: UUID, img: String) // Map doesn't work with Primitives yet. See: https://github.com/cassandra-scala/troy/issues/18
object Main extends App {
import scala.concurrent.ExecutionContext.Implicits.global
val port: Int = 9042
val host: String = "127.0.0.1"
private val cluster =
new Cluster.Builder().addContactPoints(host).withPort(port).build()
implicit val session: Session = cluster.connect()
val getCommentsByLine = withSchema.minVersion(2).maxVersion(2) {
(authorId: String, postId: UUID) =>
cql"""
SELECT post_id, post_img, foo
FROM test.posts
WHERE author_id = $authorId
AND post_id = $postId
""".prepared.as(Post)
}
val postId = UUID.fromString("a4a70900-24e1-11df-8924-001ff3591711")
println(Await.result(getCommentsByLine("test", postId), Duration(1, "second")))
session.close()
cluster.close()
}
开发者ID:schemasafe,项目名称:troy,代码行数:38,代码来源:Main.scala
注:本文中的com.datastax.driver.core.Cluster类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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