Hi,
would like to suggest a copy method for streams that takes a length
and buffer size as arguments.
Something like the below. Maybe we could also have a start offset and
use the skip method to reach it.
-----------------------
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class IOUtil {
public static void main(String[] args) throws IOException {
FileInputStream fis = null;
FileOutputStream fos = null;
try {
fis = new FileInputStream( "c:/temp/tarlog.txt");
fos = new FileOutputStream( "c:/temp/tarlog_copy.txt");
copyStream( fis, fos, 100, 100);
}
finally {
fis.close();
fos.close();
}
}
// copy the specified len bytes of inputstream to the outputstream,
// using the bufferSize.
public static void copyStream( InputStream is, OutputStream os, int
len, int bufferSize) throws IOException {
int totalread = 0;
byte[] barr = new byte[ bufferSize];
while( (len == -1 || totalread < len ) ){
int read = is.read( barr, 0, len ==-1 ? bufferSize :
Math.min(len-totalread, bufferSize) );
if( read == -1){
break;
}
else {
os.write( barr, 0, read);
totalread += read;
}
}
}
}
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