Packages

  • package root

    This is documentation for Mothra, a collection of Scala and Spark library functions for working with Internet-related data.

    This is documentation for Mothra, a collection of Scala and Spark library functions for working with Internet-related data. Some modules contain APIs of general use to Scala programmers. Some modules make those tools more useful on Spark data-processing systems.

    Please see the documentation for the individual packages for more details on their use.

    Scala Packages

    These packages are useful in Scala code without involving Spark:

    org.cert.netsa.data

    This package, which is collected as the netsa-data library, provides types for working with various kinds of information:

    org.cert.netsa.io.ipfix

    The netsa-io-ipfix library provides tools for reading and writing IETF IPFIX data from various connections and files.

    org.cert.netsa.io.silk

    To read and write CERT NetSA SiLK file formats and configuration files, use the netsa-io-silk library.

    org.cert.netsa.util

    The "junk drawer" of netsa-util so far provides only two features: First, a method for equipping Scala scala.collection.Iterators with exception handling. And second, a way to query the versions of NetSA libraries present in a JVM at runtime.

    Spark Packages

    These packages require the use of Apache Spark:

    org.cert.netsa.mothra.datasources

    Spark datasources for CERT file types. This package contains utility features which add methods to Apache Spark DataFrameReader objects, allowing IPFIX and SiLK flows to be opened using simple spark.read... calls.

    The mothra-datasources library contains both IPFIX and SiLK functionality, while mothra-datasources-ipfix and mothra-datasources-silk contain only what's needed for the named datasource.

    org.cert.netsa.mothra.analysis

    A grab-bag of analysis helper functions and example analyses.

    org.cert.netsa.mothra.functions

    This single Scala object provides Spark SQL functions for working with network data. It is the entirety of the mothra-functions library.

    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package cert
    Definition Classes
    org
  • package netsa
    Definition Classes
    cert
  • package io
    Definition Classes
    netsa
  • package silk

    SiLK file formats, data types, and methods to read them, including support for reading them from Spark.

    SiLK file formats, data types, and methods to read them, including support for reading them from Spark.

    RWRec is the type of SiLK flow records.

    You can use RWRecReader to read SiLK files from Scala, including compressed files if Hadoop native libraries are available. For example:

    import org.cert.netsa.io.silk.RWRecReader
import java.io.FileInputStream

val inputFile = new FileInputStream("path/to/silk/rw/file")

for ( rec <- RWRecReader.ofInputStream(inputFile) ) {
  println(rec.sIP)
}
    Definition Classes
    io
    See also

    org.cert.netsa.mothra.datasources.silk.flow for working with SiLK data in Spark using the Mothra SiLK datasource.

  • package config
    Definition Classes
    silk
  • package io
    Definition Classes
    silk
  • BagDataType
  • BagReader
  • BagResult
  • BagWriter
  • CompressionMethod
  • FileFormat
  • FlowType
  • Header
  • HeaderEntry
  • IPSetReader
  • IPSetWriter
  • PrefixMapProtocolPortPair
  • PrefixMapReader
  • PrefixMapResult
  • RWRec
  • RWRecReader
  • RWRecWriter
  • Sensor
  • SilkConfig
  • SilkDataFormatException
  • SilkVersion
  • TCPState

class RWRecWriter extends AnyRef

A writer of binary SiLK RWRec files that are readable by SiLK.

Example:

  1. This example reads the contents of "example.rw" and writes it to "copy.rw":

    val in = new java.io.FileInputStream("example.rw")
val out = new java.io.FileOutputStream("copy.rw")
val reader = RWRecReader.ofInputStream(in)
val writer = RWRecWriter.toOutputStream(out)
writer.append(reader)
writer.close()
See also

the companion object for more details

Linear Supertypes
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  1. RWRecWriter
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  1. final def !=(arg0: Any): Boolean
    Definition Classes
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
    Definition Classes
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  4. def append(iter: Iterator[RWRec]): Unit

    Iterates over the RWRecs and appends them to the destination stream.

    Iterates over the RWRecs and appends them to the destination stream. Writes the SiLK file header to the output stream on the first call to this function.

    This function may be called multiple times.

  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  7. def close(): Unit

    Closes the output stream.

    Closes the output stream.

    Writes the SiLK file header to the output stream if it has not been written, writes any buffered records, closes the output stream, and releases resources.

  8. val compressionMethod: CompressionMethod
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  10. def equals(arg0: AnyRef): Boolean
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  11. def finalize(): Unit
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  12. final def getClass(): Class[_ <: AnyRef]
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    @native()
  13. def hashCode(): Int
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    @native()
  14. final def isInstanceOf[T0]: Boolean
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  15. final def ne(arg0: AnyRef): Boolean
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  16. final def notify(): Unit
    Definition Classes
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    @native()
  17. final def notifyAll(): Unit
    Definition Classes
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    @native()
  18. val out: DataOutputStream
  19. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
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  20. def toString(): String
    Definition Classes
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  21. final def wait(): Unit
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    @throws(classOf[java.lang.InterruptedException])
  22. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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  23. final def wait(arg0: Long): Unit
    Definition Classes
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    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  24. def wasHeaderWritten: Boolean

    Indicates whether the SiLK file header has been written to the output stream.

    Indicates whether the SiLK file header has been written to the output stream.

    returns

    true if header has been written.

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