org.nd4j.linalg.util.InputStreamUtil Maven / Gradle / Ivy
package org.nd4j.linalg.util;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* Created by agibsonccc on 10/1/14.
*/
public class InputStreamUtil {
/**
* Count number of lines in a file
*
* @param filename
* @return
* @throws IOException
*/
public static int countLines(String filename) throws IOException {
InputStream is = new BufferedInputStream(new FileInputStream(filename));
try {
byte[] c = new byte[1024];
int count = 0;
int readChars = 0;
boolean empty = true;
while ((readChars = is.read(c)) != -1) {
empty = false;
for (int i = 0; i < readChars; ++i) {
if (c[i] == '\n') {
++count;
}
}
}
return (count == 0 && !empty) ? 1 : count;
} finally {
is.close();
}
}
}