javascalagzipgzipinputstream

Reading large number of bytes from GZIPInputStream

I am reading a gzipped file through GZIPInputStream. I want to read a large amount of data at once, but no matter how many bytes I ask the GZIPInputStream to read, it always reads far less number of bytes. For example, 

val bArray = new Array[Byte](81920)
val fis = new FileInputStream(new File(inputFileName))
val gis = new GZIPInputStream(fis)
val bytesRead =  gis.read(bArray)

The bytes read are always somewhere around 1800 bytes, while it should be nearly equal to the size of bArray, which is 81920 in this case. Why is it like this? Is there a way to solve this problem, and really have more number of bytes read?

Solution

  • OK, I found the solution. There is a version of constructor for GZIPInputStream that also takes the size of the buffer.