org.apache.tapestry.util.io
Class CompressedDataEncoder

java.lang.Object
  org.apache.tapestry.util.io.CompressedDataEncoder

public class CompressedDataEncoder
extends Object

Utility class used by IRequestCycle to compress IdAllocator state.

Field Summary

static String	BYTESTREAM_PREFIX Prefix on the MIME encoding that indicates that the encoded data is not encoded.
static String	GZIP_BYTESTREAM_PREFIX Prefix on the MIME encoding that indicates that the encoded data is encoded with GZIP.

Method Summary

static String	decodeString(String input) Takes a string with an encoded and compressed input as produced by encodeString(String) , and converts it back into the original String representation.
static String	encodeString(String input) Encodes the given string into a compressed string representation that can later be decoded.

Methods inherited from class java.lang.Object

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

Field Detail

BYTESTREAM_PREFIX

public static final String BYTESTREAM_PREFIX

Prefix on the MIME encoding that indicates that the encoded data is not encoded.

See Also:

Constant Field Values

GZIP_BYTESTREAM_PREFIX

public static final String GZIP_BYTESTREAM_PREFIX

Prefix on the MIME encoding that indicates that the encoded data is encoded with GZIP.

See Also:

Constant Field Values

Method Detail

encodeString

public static String encodeString(String input)

Encodes the given string into a compressed string representation that can later be decoded.

Parameters:

input - String input to compress and encode into a persistable form.

Returns:

encoded string (possibly empty, but not null)

decodeString

public static String decodeString(String input)

Takes a string with an encoded and compressed input as produced by encodeString(String) , and converts it back into the original String representation.

Parameters:

input - The data to un-encode, which should be equivalent to the same that was passed in to encodeString(String).

Returns:

The decoded string data.