scala操作hbase案例

案例取自streaming-app项目

package com.asiainfo.ocdc.streaming.tools



import org.apache.hadoop.hbase.HBaseConfiguration

import org.apache.hadoop.conf.Configuration

import org.apache.hadoop.hbase.client.{Put, Result, Get, HTable}

import org.apache.hadoop.hbase.util.Bytes

import scala.collection.mutable



object HbaseTool {



  val table = new mutable.HashMap[String,HTable]()

  var conf = HBaseConfiguration.create()



  def setConf(c:Configuration)={

    conf = c

  }



  def getTable(tableName:String):HTable={



    table.getOrElse(tableName,{

      println("----new connection ----")

      val tbl = new HTable(conf, tableName)

      table(tableName)= tbl

      tbl

    })

  }



  def getValue(tableName:String,rowKey:String,family:String,qualifiers:Array[String]):Array[(String,String)]={

    var result:AnyRef = null

    val table_t =getTable(tableName)

    val row1 =  new Get(Bytes.toBytes(rowKey))

    val HBaseRow = table_t.get(row1)

    if(HBaseRow != null && !HBaseRow.isEmpty){

      result = qualifiers.map(c=>{

        (tableName+"."+c, Bytes.toString(HBaseRow.getValue(Bytes.toBytes(family), Bytes.toBytes(c))))

      })

    }

    else{

      result=qualifiers.map(c=>{

        (tableName+"."+c,"null")  })

    }

    result.asInstanceOf[Array[(String,String)]]

  }



  def putValue(tableName:String,rowKey:String, family:String,qualifierValue:Array[(String,String)]) {

    val table =getTable(tableName)

    val new_row  = new Put(Bytes.toBytes(rowKey))

    qualifierValue.map(x=>{

      var column = x._1

      val value = x._2

      val tt = column.split("\\.")

      if (tt.length == 2) column=tt(1)

      if(!(value.isEmpty))

        new_row.add(Bytes.toBytes(family), Bytes.toBytes(column), Bytes.toBytes(value))

    })

    table.put(new_row)

  }



  val family = "F"

}