org.nd4j.linalg.util.InputStreamUtil Maven / Gradle / Ivy
/*-
*
* * Copyright 2015 Skymind,Inc.
* *
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
*
*
*/
package org.nd4j.linalg.util;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* Input stream jcuda.utils
*
* @author Adam Gibson
*/
public class InputStreamUtil {
/**
* Count number of lines in a file
*
* @param is
* @return
* @throws IOException
*/
public static int countLines(InputStream is) throws IOException {
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();
}
}
/**
* Count number of lines in a file
*
* @param filename
* @return
* @throws IOException
*/
public static int countLines(String filename) throws IOException {
FileInputStream fis = new FileInputStream(filename);
try {
return countLines(new BufferedInputStream(fis));
} finally {
fis.close();
}
}
}