edu.rice.cs.util
Class MD5ChecksumProperties

java.lang.Object
  java.util.Dictionary<K,V>
      java.util.Hashtable<Object,Object>
          java.util.Properties
              edu.rice.cs.util.MD5ChecksumProperties

All Implemented Interfaces:

Serializable, Cloneable, Map<Object,Object>

public class MD5ChecksumProperties
extends Properties

Create a property file with MD5 checksums

Version:

$Id: MD5ChecksumProperties.java 5236 2010-04-27 01:43:36Z mgricken $

See Also:

Serialized Form

Field Summary

static int

BUFFER_SIZE

Fields inherited from class java.util.Properties

defaults

Constructor Summary

MD5ChecksumProperties()

MD5ChecksumProperties(Properties p)

Method Summary

boolean	addMD5(File f) Add the MD5 checksum for the data in the input stream to the properties, using the name of the file as key.
boolean	addMD5(File f, OutputStream os) Add the MD5 checksum for the data in the input stream to the properties, using the name of the file as key.
boolean	addMD5(String key, byte[] b) Add the MD5 checksum for the data in the byte array to the properties, using the specified key.
boolean	addMD5(String key, byte[] b, OutputStream os) Add the MD5 checksum for the data in the byte array to the properties, using the specified key.
boolean	addMD5(String key, File f) Add the MD5 checksum for the data in the file to the properties, using the specified key.
boolean	addMD5(String key, File f, OutputStream os) Add the MD5 checksum for the data in the file to the properties, using the specified key.
boolean	addMD5(String key, InputStream is) Add the MD5 checksum for the data in the input stream to the properties, using the specified key.
boolean	addMD5(String key, InputStream is, OutputStream os) Add the MD5 checksum for the data in the input stream to the properties, using the specified key.
static byte[]	getMD5(byte[] b)
static byte[]	getMD5(File f)
static byte[]	getMD5(InputStream is) Return the MD5 checksum for the data in the stream
static byte[]	getMD5(InputStream is, OutputStream os) Return the MD5 checksum for the data in the stream, while copying the data into the output stream.
static String	getMD5String(byte[] b)
static String	getMD5String(File f)
static String	getMD5String(InputStream is) Return the MD5 checksum as string for the data in the stream.
static String	getMD5String(InputStream is, OutputStream os) Return the MD5 checksum as string for the data in the stream, while copying the data into the output stream.
static void	main(String[] args) Main method.

Methods inherited from class java.util.Properties

getProperty, getProperty, list, list, load, load, loadFromXML, propertyNames, save, setProperty, store, store, storeToXML, storeToXML, stringPropertyNames

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

BUFFER_SIZE

public static final int BUFFER_SIZE

See Also:

Constant Field Values

Constructor Detail

MD5ChecksumProperties

public MD5ChecksumProperties()

MD5ChecksumProperties

public MD5ChecksumProperties(Properties p)

Method Detail

getMD5

public static byte[] getMD5(InputStream is,
                            OutputStream os)
                     throws IOException

Return the MD5 checksum for the data in the stream, while copying the data into the output stream. The output stream is not closed.

Parameters:

is - input stream

os - output stream (or null if no copying desired)

Returns:

MD5 checksum

Throws:

IOException

getMD5

public static byte[] getMD5(InputStream is)
                     throws IOException

Return the MD5 checksum for the data in the stream

Parameters:

is - input stream

Returns:

MD5 checksum

Throws:

IOException

getMD5String

public static String getMD5String(InputStream is,
                                  OutputStream os)
                           throws IOException

Return the MD5 checksum as string for the data in the stream, while copying the data into the output stream. The output stream is not closed.

Parameters:

is - input stream

os - output stream (or null if no copying desired)

Returns:

MD5 checksum string

Throws:

IOException

getMD5String

public static String getMD5String(InputStream is)
                           throws IOException

Return the MD5 checksum as string for the data in the stream.

Parameters:

is - input stream

Returns:

MD5 checksum string

Throws:

IOException

getMD5

public static byte[] getMD5(File f)
                     throws IOException

Throws:

IOException

getMD5String

public static String getMD5String(File f)
                           throws IOException

Throws:

IOException

getMD5

public static byte[] getMD5(byte[] b)
                     throws IOException

Throws:

IOException

getMD5String

public static String getMD5String(byte[] b)
                           throws IOException

Throws:

IOException

addMD5

public boolean addMD5(String key,
                      InputStream is,
                      OutputStream os)
               throws IOException

Add the MD5 checksum for the data in the input stream to the properties, using the specified key.

Parameters:

key - key to store the checksum under

is - input stream with the data

os - output stream to copy to (or null if not wanted)

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(String key,
                      InputStream is)
               throws IOException

Add the MD5 checksum for the data in the input stream to the properties, using the specified key.

Parameters:

key - key to store the checksum under

is - input stream with the data

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(String key,
                      File f,
                      OutputStream os)
               throws IOException

Add the MD5 checksum for the data in the file to the properties, using the specified key.

Parameters:

key - key to store the checksum under

f - file with the data

os - output stream to copy to (or null if not wanted)

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(String key,
                      File f)
               throws IOException

Add the MD5 checksum for the data in the file to the properties, using the specified key.

Parameters:

key - key to store the checksum under

f - file with the data

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(String key,
                      byte[] b,
                      OutputStream os)
               throws IOException

Add the MD5 checksum for the data in the byte array to the properties, using the specified key.

Parameters:

key - key to store the checksum under

b - byte array with the data

os - output stream to copy to (or null if not wanted)

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(String key,
                      byte[] b)
               throws IOException

Add the MD5 checksum for the data in the byte array to the properties, using the specified key.

Parameters:

key - key to store the checksum under

b - byte array with the data

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(File f,
                      OutputStream os)
               throws IOException

Add the MD5 checksum for the data in the input stream to the properties, using the name of the file as key.

Parameters:

f - file with the data

os - output stream to copy to (or null if not wanted)

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

addMD5

public boolean addMD5(File f)
               throws IOException

Add the MD5 checksum for the data in the input stream to the properties, using the name of the file as key.

Parameters:

f - file with the data

Returns:

false if the new MD5 checksum didn't match an existing checksum

Throws:

IOException

main

public static void main(String[] args)
                 throws IOException

Main method. Usage: no arguments --> input file list from standard in, output properties to standard out --> input file list from standard in, append output properties to file1 --> input file list from file1, append output properties to file 2

Throws:

IOException