Scala FileReader类代码示例

//设置package包名称以及导入依赖的类
package me.thethe.ofxparser

import java.io.{BufferedReader, FileReader}

import me.thethe.ofxparser.models.{Account, AccountType, Checking, NoType}
import net.sf.ofx4j.io.OFXHandler
import net.sf.ofx4j.io.nanoxml.NanoXMLOFXReader
import models.builders.{Account => AccountBuilder}

class OfxParser(filePath: String)  {
  val inputFileReader = new BufferedReader(new FileReader(filePath))
  val ofxParser = new NanoXMLOFXReader()

  def parse(handler: BankingOfxHandler): Account = {
    ofxParser.setContentHandler(handler)
    ofxParser.parse(inputFileReader)
    handler.account
  }
}

class BankingOfxHandler extends OFXHandler {
  var account: Account = null

  var accountBuilder: AccountBuilder = new AccountBuilder()

  override def onElement(name: String, value: String): Unit = {
    name match {
      case "ORG" => accountBuilder.bankName = value
      case "BANKID" => accountBuilder.aba = value
      case "ACCTID" => accountBuilder.accountId = value
      case "ACCTTYPE" => accountBuilder.accountType = value match {
        case "BANKING" => Checking
        case _ => NoType
      }
      case _ => ()
    }
    println(s"ELEMENT: $name, $value")
  }

  override def endAggregate(aggregateName: String): Unit = {
    aggregateName match {
      case "BANKACCTFROM" => account = Account(accountBuilder)
      case _ => ()
    }
    println(s"END AGGREGATE: $aggregateName")
  }

  override def onHeader(name: String, value: String): Unit = {
    println(s"HEADER: $name, $value")
  }

  override def startAggregate(aggregateName: String): Unit = {
    println(s"START AGGREGATE: $aggregateName")
  }
} 

//设置package包名称以及导入依赖的类
package org.argus.amandroid.serialization

import java.io.{FileReader, FileWriter}

import org.argus.amandroid.alir.componentSummary.ApkYard
import org.argus.amandroid.core.decompile.{ConverterUtil, DecompileLayout, DecompileStrategy, DecompilerSettings}
import org.argus.amandroid.core.model.ApkModel
import org.argus.jawa.core.DefaultReporter
import org.json4s.NoTypeHints
import org.json4s.native.Serialization
import org.json4s.native.Serialization.{read, write}
import org.scalatest.{FlatSpec, Matchers}
import org.argus.jawa.core.util.FileUtil


class SerializationTest extends FlatSpec with Matchers {

  "ApkModel" should "successfully serialized and deserialized" in {
    val apkFile = getClass.getResource("/icc-bench/IccHandling/icc_explicit_src_sink.apk").getPath
    val apkUri = FileUtil.toUri(apkFile)
    val outputUri = FileUtil.toUri(apkFile.substring(0, apkFile.length - 4))
    val reporter = new DefaultReporter
    val yard = new ApkYard(reporter)
    val layout = DecompileLayout(outputUri)
    val strategy = DecompileStrategy(layout)
    val settings = DecompilerSettings(debugMode = false, forceDelete = true, strategy, reporter)
    val apk = yard.loadApk(apkUri, settings, collectInfo = true)
    val model = apk.model
    implicit val formats = Serialization.formats(NoTypeHints) + ApkModelSerializer
    val apkRes = FileUtil.toFile(FileUtil.appendFileName(outputUri, "apk.json"))
    val oapk = new FileWriter(apkRes)
    try {
      write(model, oapk)
    } catch {
      case e: Exception =>
        e.printStackTrace()
    } finally {
      oapk.flush()
      oapk.close()
    }
    val iapk = new FileReader(apkRes)
    var newApkModel: ApkModel = null
    try {
      newApkModel = read[ApkModel](iapk)
    } catch {
      case e: Exception =>
        e.printStackTrace()
    } finally {
      iapk.close()
      ConverterUtil.cleanDir(outputUri)
    }
    require(
      model.getAppName == newApkModel.getAppName &&
      model.getComponents == newApkModel.getComponents &&
      model.getLayoutControls == newApkModel.getLayoutControls &&
      model.getCallbackMethods == newApkModel.getCallbackMethods &&
      model.getComponentInfos == newApkModel.getComponentInfos &&
      model.getEnvMap == newApkModel.getEnvMap)
  }
} 

//设置package包名称以及导入依赖的类
import java.io.{FileWriter, BufferedReader, File, FileReader}

import org.scalatest._

class FileReaderTest2Iterable extends FlatSpec with Matchers {
  "Hello" should "have tests" in {


    def getContents(fileName: String): Iterable[String] = {
      val fr = new BufferedReader(new FileReader(fileName))
      new Iterable[String] {
        def iterator = new Iterator[String] {
          def hasNext = line != null

          def next = {
            val retVal = line
            line = getLine
            retVal
          }

          def getLine = {
            var line: String = null
            try {
              line = fr.readLine
            } catch {
              case _: Throwable => line = null; fr.close()
            }
            line
          }

          var line = getLine
        }
      }
    }


    val w = new FileWriter("/tmp/csv3.txt")

    Seq("/tmp/csv.txt", "/tmp/csv2.txt").foreach(fn => {
      getContents(fn).foreach(ln => {
        w.write(ln)
        w.write("\r\n")
      })
    }
    )


  }
} 

//设置package包名称以及导入依赖的类
import java.io.{BufferedWriter, BufferedReader, FileReader, FileWriter}

import org.scalatest._

class FileReaderTest3Iterator extends FlatSpec with Matchers {
  "Hello" should "have tests" in {


    def getContents(fileName: String): Iterator[String] = {
      val fr = new BufferedReader(new FileReader(fileName))
      def iterator = new Iterator[String] {
        def hasNext = line != null

        def next = {
          val retVal = line
          line = getLine
          retVal
        }

        def getLine = {
          var line: String = null
          try {
            line = fr.readLine
          } catch {
            case _: Throwable => line = null; fr.close()
          }
          line
        }

        var line = getLine
      }
      iterator
    }

    val w = new BufferedWriter(new FileWriter("/tmp/csv4.txt"))

    Seq("/tmp/csv.txt", "/tmp/csv2.txt").foreach(fn => {
      getContents(fn).foreach(ln => {
        w.write(ln)
        w.write("\r\n")
      })
    }
    )


  }
} 

//设置package包名称以及导入依赖的类
package org.metamath.scala

import java.io.FileReader

object Main {
  def main(args: Array[String]) {
    args match {
      case Array(file) =>
        val parser = new MMParser(new FileReader(file))
        println("File parsing...")
        implicit val db = parser.parse
        println("Verify...")
        new Verifier
        //println("Check definitions...")
        //new DefinitionChecker
      case _ => println("Usage: mm-scala file.mm")
    }
  }
} 

//设置package包名称以及导入依赖的类
package net.zhenglai.ml.lib

import java.io.{BufferedReader, File, FileReader}


class FileLineTraversable(file: File) extends Traversable[String] {
  val x = new FileLineTraversable(new File("test.txt"))

  override def foreach[U](f: (String) ? U): Unit = {
    val input = new BufferedReader(new FileReader(file))
    try {
      var line = input readLine

      if (line != null) {
        do {
          f(line)
          line = input readLine
        } while (line != null)
      }
    } finally {
      input close
    }
  }

  // when called within REPL, make sure entire file content aren't enumerated
  override def toString = s"{Lines of ${file getAbsolutePath}}"

  for {
    line ? x
    word ? line.split("\\s+")
  } yield word
} 

//设置package包名称以及导入依赖的类
package com.chapter3.ScalaFP

import java.io.BufferedReader
import java.io.IOException
import java.io.FileReader

object ScalaExceptionHandling {
  def errorHandler(e:IOException){
    println("stop doing somehting!")
  }
  val file:String = "C:/Exp/input.txt"
  val input = new BufferedReader(new FileReader(file))
try {
  try {
    for (line <- Iterator.continually(input.readLine()).takeWhile(_ != null)) {
      Console.println(line)
    }
  } finally {
    input.close()
  }
} catch {
  case e:IOException => errorHandler(e)
}

  
} 

//设置package包名称以及导入依赖的类
package com.chapter3.ScalaFP
import java.io.IOException
import java.io.FileReader
import java.io.FileNotFoundException
object TryCatch {
  def main(args: Array[String]) {
    try {
      val f = new FileReader("data/data.txt")
    } catch {
      case ex: FileNotFoundException => println("File not found exception")
      case ex: IOException => println("IO Exception") 
    } finally {
      println("Finally block always executes");
    }
  }
} 

//设置package包名称以及导入依赖的类
package com.chsoft.common

import java.io.FileNotFoundException
import java.io.IOException
import java.io.FileReader

object ExceptionUtils {

  def main(args: Array[String]) {

    try {
      val f = new FileReader("input.txt")
    } catch {
      case ex: FileNotFoundException => {
        println("FileNotFoundException"+ex.getMessage)
      }
      case ex: IOException => {
        println("IOException")
      }
    }finally{  //finally ?????????????????????????????
      println("?????????????")
    }
    
    
  }
  
   def matchTest(x: Int){
      x match{
        case 1 if x<=4 => println("one")
        case 2 => println("two")
        //case _x => println("age"+_x)
        case _ => println("many")
      }
      
   }
  
} 

//设置package包名称以及导入依赖的类
package pl.writeonly.babel.beans

import java.io.BufferedReader
import java.io.FileReader
import javax.annotation.Resource
import pl.writeonly.babel.daos.DaoCsv
import au.com.bytecode.opencsv.CSVReader

@org.springframework.stereotype.Controller
class ParseBean {
  @Resource var daoCsv: DaoCsv = _
  def deen(fileName: String) = {
    //val reader = new BufferedReader(new FileReader(fileName))
    val reader = new CSVReader(new FileReader(fileName));
    val readed = reader.readAll()

    readed.foldLeft(new BufferList[_])((l, el) => { l})

  }
} 

//设置package包名称以及导入依赖的类
package com.esri

import java.io.{File, FileReader}
import java.util.Properties

import org.apache.spark.SparkConf

import scala.collection.JavaConverters._

object AppProperties {

  def loadProperties(filename: String, sparkConf: SparkConf = new SparkConf()) = {
    val file = new File(filename)
    if (file.exists) {
      val reader = new FileReader(file)
      try {
        val properties = new Properties()
        properties.load(reader)
        properties.asScala.foreach { case (k, v) => sparkConf.set(k, v) }
      }
      finally {
        reader.close()
      }
    }
    sparkConf
  }

} 

//设置package包名称以及导入依赖的类
import org.jfree.chart._
import org.jfree.data.xy._
import scala.math._
import scala.collection.mutable.{MutableList, Map}
import java.io.{FileReader, BufferedReader}

object ParallelCoordinates {
  def readCSVFile(filename: String): Map[String, MutableList[String]] = {
    val file = new FileReader(filename)
    val reader = new BufferedReader(file)
    val csvdata: Map[String, MutableList[String]] = Map()
    try {
      val alldata = new MutableList[Array[String]]
      var line:String = null
      while ({line = reader.readLine(); line} != null) {
        if (line.length != 0) {
          val delimiter: String = ","
          var splitline: Array[String] = line.split(delimiter).map(_.trim)
          alldata += splitline
        }
      }
      val labels = MutableList("sepal length", "sepal width",
        "petal length", "petal width", "class")
      val labelled = labels.zipWithIndex.map {
        case (label, index) => label -> alldata.map(x => x(index))
      }
      for (pair <- labelled) {
        csvdata += pair
      }
    } finally {
      reader.close()
    }
    csvdata
  }

  def main(args: Array[String]) {
    val data = readCSVFile("iris.csv")
    val dataset = new DefaultXYDataset
    for (i <- 0 until data("sepal length").size) {
      val x = Array(0.0, 1.0, 2.0, 3.0)
      val y1 = data("sepal length")(i).toDouble
      val y2 = data("sepal width")(i).toDouble
      val y3 = data("petal length")(i).toDouble
      val y4 = data("petal width")(i).toDouble
      val y = Array(y1, y2, y3, y4)
      val cls = data("class")(i)
      dataset.addSeries(cls + i, Array(x, y))
    }
    val frame = new ChartFrame("Parallel Coordinates",
      ChartFactory.createXYLineChart("Parallel Coordinates", "x", "y",
      dataset, org.jfree.chart.plot.PlotOrientation.VERTICAL,
      false, false, false))
    frame.pack()
    frame.setVisible(true)
  }
} 

//设置package包名称以及导入依赖的类
import scala.collection.mutable.{MutableList, Map}
import java.io.{FileReader, BufferedReader}

object CSVReader {
 def main(args: Array[String]) {
   val file = new FileReader("iris.csv")
   val reader = new BufferedReader(file)
   try {
     val alldata = new MutableList[Array[String]]
     var line:String = null
     while ({line = reader.readLine(); line} != null) {
       if (line.length != 0) {
         val delimiter: String = ","
         var splitline: Array[String] = line.split(delimiter).map(_.trim)
         alldata += splitline
       }
     }
     val labels = MutableList("sepal length", "sepal width",
       "petal length", "petal width", "class")
     val labelled = labels.zipWithIndex.map {
       case (label, index) => label -> alldata.map(x => x(index))
     }
     val csvdata: Map[String, MutableList[String]] = Map()
     for (pair <- labelled) {
       csvdata += pair                                           
     }
   }
   finally {
     reader.close()
   }
 }
} 

//设置package包名称以及导入依赖的类
package pl.touk.nussknacker.engine.process.runner

import java.io.{File, FileReader}

import cats.data.Validated.{Invalid, Valid}
import com.typesafe.config.{Config, ConfigFactory}
import org.apache.commons.io.IOUtils
import pl.touk.nussknacker.engine.api.process.ProcessConfigCreator
import pl.touk.nussknacker.engine.canonicalgraph.CanonicalProcess
import pl.touk.nussknacker.engine.canonize.ProcessCanonizer
import pl.touk.nussknacker.engine.graph.EspProcess
import pl.touk.nussknacker.engine.marshall.ProcessMarshaller
import pl.touk.nussknacker.engine.util.ThreadUtils

trait FlinkRunner {

  private val ProcessMarshaller = new ProcessMarshaller


  protected def readConfigFromArgs(args: Array[String]): Config = {
    val optionalConfigArg = if (args.length > 1) Some(args(1)) else None
    readConfigFromArg(optionalConfigArg)
  }

  protected def loadCreator(config: Config): ProcessConfigCreator =
    ThreadUtils.loadUsingContextLoader(config.getString("processConfigCreatorClass")).newInstance().asInstanceOf[ProcessConfigCreator]

  protected def readProcessFromArg(arg: String): EspProcess = {
    val canonicalJson = if (arg.startsWith("@")) {
      IOUtils.toString(new FileReader(arg.substring(1)))
    } else {
      arg
    }
    ProcessMarshaller.fromJson(canonicalJson).toValidatedNel[Any, CanonicalProcess] andThen { canonical =>
      ProcessCanonizer.uncanonize(canonical)
    } match {
      case Valid(p) => p
      case Invalid(err) => throw new IllegalArgumentException(err.toList.mkString("Unmarshalling errors: ", ", ", ""))
    }
  }

  private def readConfigFromArg(arg: Option[String]): Config =
    arg match {
      case Some(name) if name.startsWith("@") =>
        ConfigFactory.parseFile(new File(name.substring(1)))
      case Some(string) =>
        ConfigFactory.parseString(string)
      case None =>
        ConfigFactory.load()
    }


} 

//设置package包名称以及导入依赖的类
package se.lth.immun

import java.io.File
import java.io.FileReader
import java.io.BufferedReader
import se.lth.immun.xml.XmlReader

import se.lth.immun.traml.ghost.GhostTraML
import se.lth.immun.diana.DianaLib

object TraML {
	
	import DianaLib._

	def parse(f:File) = {
		val r = new XmlReader(new BufferedReader(new FileReader(f)))
		val gt = GhostTraML.fromFile(r)
		
		for ((pk, transitions) <- gt.transitionGroups.toSeq) yield {
			val firstTrans = transitions.head
			Assay(
				pk.toString,
				gt.peptides(pk.pepCompId).proteins.mkString(";"),
				firstTrans.rt.map(_.t).getOrElse(0.0),
				pk.mz,
				firstTrans.q1z,
				gt.includeGroups.getOrElse(pk, Nil).map(gTarget =>
					Channel(gTarget.q1, gTarget.q1z, gTarget.id, 1, gTarget.intensity.getOrElse(
						throw new Exception("[%s] Couldn't parse target intensity".format(gTarget.id))
					))
				),
				transitions.map(gTrans =>
					Channel(gTrans.q3, gTrans.q3z, gTrans.id, 2, gTrans.intensity.getOrElse(
						throw new Exception("[%s] Couldn't parse transition intensity".format(gTrans.id))
					))
				)
			)
		}
	}
}