What is Deflater in Java?

What is Deflater in Java?

public class Deflater extends Object. This class provides support for general purpose compression using the popular ZLIB compression library. The ZLIB compression library was initially developed as part of the PNG graphics standard and is not protected by patents. It is fully described in the specifications at the java …

How to use deflater in java?

byte[] originalBytes = Deflater deflater = new Deflater(); deflater. setInput(originalBytes); deflater. finish(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); byte[] buf = new byte[8192]; while (!

What is Deflate encoding?

In computing, Deflate is a lossless data compression file format that uses a combination of LZSS and Huffman coding. This led to its widespread use – for example, in gzip compressed files and PNG image files, in addition to the ZIP file format for which Katz originally designed it. The patent has since expired.

How do you compress an object in Java?

Java object compression is done using the GZIPOutputStream class (this class implements a stream filter for writing compressed data in the GZIP file format) and passes it to the ObjectOutputStream class (this class extends OutputStream and implements ObjectOutput, ObjectStreamConstants) to write the object into an …

How does the DEFLATE algorithm compress the data?

The deflate compressor is given a great deal of flexibility as to how to compress the data. The programmer must deal with the problem of designing smart algorithms to make the right choices, but the compressor does have choices about how to compress data. There are three modes of compression that the compressor has available: Not compressed at all.

How does the DEFLATE method in Java work?

An invocation of this method of the form deflater.deflate (b) yields the same result as the invocation of deflater.deflate (b, 0, b.length, Deflater.NO_FLUSH). Compresses the input data and fills the specified buffer with compressed data. Returns actual number of bytes of data compressed.

How is the DEFLATE algorithm used in zlib?

Blah b [D=5, L=18]! The deflate compressor is given a great deal of flexibility as to how to compress the data. The programmer must deal with the problem of designing smart algorithms to make the right choices, but the compressor does have choices about how to compress data.

Which is the fastest deflate library in Java?

From these results, we can see that my (fast) DEFLATE library in Java is 0.62× the speed of java.util.zip (which uses the zlib native library implemented in C).