Package org.apache.nutch.util

Class DeflateUtils

java.lang.Object
org.apache.nutch.util.DeflateUtils
public class DeflateUtils extends Object
A collection of utility methods for working on deflated data.

  • Constructor Summary

    Constructors
    Constructor
    Description
    DeflateUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static final byte[]
    deflate(byte[] in)
    Returns a deflated copy of the input array.
    static final byte[]
    inflate(byte[] in)
    Returns an inflated copy of the input array.
    static final byte[]
    inflateBestEffort(byte[] in)
    Returns an inflated copy of the input array.
    static final byte[]
    inflateBestEffort(byte[] in, int sizeLimit)
    Returns an inflated copy of the input array, truncated to sizeLimit bytes, if necessary.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • DeflateUtils

      public DeflateUtils()

  • Method Details

    • inflateBestEffort

      public static final byte[] inflateBestEffort(byte[] in)
      Returns an inflated copy of the input array. If the deflated input has been truncated or corrupted, a best-effort attempt is made to inflate as much as possible. If no data can be extracted null is returned.
      Parameters:
      in - Deflated byte array
      Returns:
      An inflated copy of the input array, otherwise null

    • inflateBestEffort

      public static final byte[] inflateBestEffort(byte[] in, int sizeLimit)
      Returns an inflated copy of the input array, truncated to sizeLimit bytes, if necessary. If the deflated input has been truncated or corrupted, a best-effort attempt is made to inflate as much as possible. If no data can be extracted null is returned.
      Parameters:
      in - Deflated byte array
      sizeLimit - Maximum size (bytes) allowed for inflated copy
      Returns:
      An inflated copy of the input array, otherwise null

    • inflate

      public static final byte[] inflate(byte[] in) throws IOException
      Returns an inflated copy of the input array.
      Parameters:
      in - Deflated byte array
      Returns:
      An inflated copy of the input array, otherwise null
      Throws:
      IOException - if the input cannot be properly decompressed

    • deflate

      public static final byte[] deflate(byte[] in)
      Returns a deflated copy of the input array.
      Parameters:
      in - Inflated byte array
      Returns:
      A deflated copy of the input array, otherwise null