Java Requires Chilkat v11.0.0+

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. Chilkat2 Java

import com.chilkatsoft.chilkat2.BinData;
import com.chilkatsoft.chilkat2.Compression;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        StringBuilder sbCompressedBase64 = new StringBuilder();

        Compression compress = new Compression();
        compress.setAlgorithm("deflate");
        compress.setCharset("utf-8");
        compress.setEncodingMode("base64");

        compress.setFirstChunk(true);
        compress.setLastChunk(false);

        BinData bdCompressed = new BinData();
        StringBuilder sbUncompressedChunk = new StringBuilder();

        for (int i = 0; i <= 24; i++) {
            if (i == 24) {
                compress.setLastChunk(true);
            }

            sbUncompressedChunk.clear();
            sbUncompressedChunk.appendInt(i);
            sbUncompressedChunk.append(": This is a line of data to be compressed...\r\n");

            compress.compressSb(sbUncompressedChunk, bdCompressed);

            compress.setFirstChunk(false);
        }

        System.out.println("The base64 encoded compressed text:");
        System.out.println(bdCompressed.getEncoded("base64"));

        // Decompress in one call:
        String originalText = compress.decompressStringENC(bdCompressed.getEncoded("base64"));
        System.out.println(originalText);
    }
}