GZIP Java vs .NET
- by Jim Jones
Using the following Java code to compress/decompress bytes[] to/from GZIP.
First text bytes to gzip bytes:
public static byte[] fromByteToGByte(byte[] bytes) {
ByteArrayOutputStream baos = null;
try {
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
baos = new ByteArrayOutputStream();
GZIPOutputStream gzos = new GZIPOutputStream(baos);
byte[] buffer = new byte[1024];
int len;
while((len = bais.read(buffer)) >= 0) {
gzos.write(buffer, 0, len);
}
gzos.close();
baos.close();
} catch (IOException e) {
e.printStackTrace();
}
return(baos.toByteArray());
}
Then the method that goes the other way compressed bytes to uncompressed bytes:
public static byte[] fromGByteToByte(byte[] gbytes) {
ByteArrayOutputStream baos = null;
ByteArrayInputStream bais = new ByteArrayInputStream(gbytes);
try {
baos = new ByteArrayOutputStream();
GZIPInputStream gzis = new GZIPInputStream(bais);
byte[] bytes = new byte[1024];
int len;
while((len = gzis.read(bytes)) > 0) {
baos.write(bytes, 0, len);
}
} catch (IOException e) {
e.printStackTrace();
}
return(baos.toByteArray());
}
Think there is any effect since I'm not writing out to a gzip file?
Also I noticed that in the standard C# function that BitConverter reads the first four bytes and then the MemoryStream Write function is called with a start point of 4 and a length of input buffer length - 4. So is that effect the validity of the header?
Jim
