Ruby

Compress String Feed to Base64

See more Compression Examples

This example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed data in base64. Ruby

require 'chilkat'

success = false

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

sbCompressedBase64 = Chilkat::CkStringBuilder.new()

compress = Chilkat::CkCompression.new()
compress.put_Algorithm("deflate")
compress.put_Charset("utf-8")
compress.put_EncodingMode("base64")

compress.put_FirstChunk(true)
compress.put_LastChunk(false)

bdCompressed = Chilkat::CkBinData.new()
sbUncompressedChunk = Chilkat::CkStringBuilder.new()

for i in 0 .. 24
    if (i == 24)
        compress.put_LastChunk(true)
    end

    sbUncompressedChunk.Clear()
    sbUncompressedChunk.AppendInt(i)
    sbUncompressedChunk.Append(": This is a line of data to be compressed...\r\n")

    compress.CompressSb(sbUncompressedChunk,bdCompressed)

    compress.put_FirstChunk(false)
end

print "The base64 encoded compressed text:" + "\n";
print bdCompressed.getEncoded("base64") + "\n";

# Decompress in one call:
originalText = compress.decompressStringENC(bdCompressed.getEncoded("base64"))
print originalText + "\n";