Package org.nuiton.util

Class MD5InputStream

java.lang.Object
java.io.InputStream
java.io.FilterInputStream
java.security.DigestInputStream
org.nuiton.util.MD5InputStream
All Implemented Interfaces:
java.io.Closeable, java.lang.AutoCloseable
public class MD5InputStream
extends java.security.DigestInputStream
MD5InputStream, a subclass of FilterInputStream implementing MD5 functionality on a stream.
Author:
Tony Chemit - chemit@codelutin.com

  • Field Summary

    Fields 
    Modifier and Type Field Description
    protected long streamLength
    length of readed stream

    Fields inherited from class java.security.DigestInputStream

    digest

    Fields inherited from class java.io.FilterInputStream

    in

  • Constructor Summary

    Constructors 
    Constructor Description
    MD5InputStream​(java.io.InputStream in)
    Creates a MD5InputStream

  • Method Summary

    Modifier and Type Method Description
    protected static java.security.MessageDigest getMD5Digest()  
    long getStreamLength()  
    byte[] hash()
    Returns array of bytes representing hash of the stream as finalized for the current state.
    static byte[] hash​(java.io.File input)
    Compute the MD5 for the given input file.
    static byte[] hash​(java.io.InputStream input)
    Compute the MD5 for the given input.
    static byte[] hash​(java.lang.String input)
    Compute the MD5 for the given input sring.
    int read()  
    int read​(byte[] bytes, int offset, int length)  

    Methods inherited from class java.security.DigestInputStream

    getMessageDigest, on, setMessageDigest, toString

    Methods inherited from class java.io.FilterInputStream

    available, close, mark, markSupported, read, reset, skip

    Methods inherited from class java.io.InputStream

    nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

    Methods inherited from class java.lang.Object

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

  • Field Details

    • streamLength

      protected long streamLength
      length of readed stream

  • Constructor Details

    • MD5InputStream

      public MD5InputStream​(java.io.InputStream in)
      Creates a MD5InputStream
      Parameters:
      in - The input stream

  • Method Details

    • getMD5Digest

      protected static java.security.MessageDigest getMD5Digest() throws java.lang.IllegalStateException
      Throws:
      java.lang.IllegalStateException

    • hash

      public static byte[] hash​(java.io.InputStream input) throws java.io.IOException
      Compute the MD5 for the given input. Note: The the stream will be closed after calling the method even if something was wrong.
      Parameters:
      input - the stream to parse
      Returns:
      the MD5 hash for the given input stream
      Throws:
      java.io.IOException - if any pb while reading in stream or digest

    • hash

      public static byte[] hash​(java.io.File input) throws java.io.IOException
      Compute the MD5 for the given input file.
      Parameters:
      input - the File stream to parse
      Returns:
      the MD5 hash for the given input File
      Throws:
      java.io.IOException - if any pb while reading in stream or digest

    • hash

      public static byte[] hash​(java.lang.String input) throws java.io.IOException
      Compute the MD5 for the given input sring.
      Parameters:
      input - the stream to parse
      Returns:
      the MD5 hash for the given input String
      Throws:
      java.io.IOException - if any pb while reading in stream or digest

    • read

      public int read() throws java.io.IOException
      Overrides:
      read in class java.security.DigestInputStream
      Throws:
      java.io.IOException

    • read

      public int read​(byte[] bytes, int offset, int length) throws java.io.IOException
      Overrides:
      read in class java.security.DigestInputStream
      Throws:
      java.io.IOException

    • hash

      public byte[] hash()
      Returns array of bytes representing hash of the stream as finalized for the current state.
      Returns:
      hash
      See Also:
      MessageDigest.digest()

    • getStreamLength

      public long getStreamLength()