Here you can find the source of minFileBuf(long fileSize, int bufSize)
public static int minFileBuf(long fileSize, int bufSize)
//package com.java2s; /*//from w w w . j a v a 2 s. c o m * Crail: A Multi-tiered Distributed Direct Access File System * * Author: Patrick Stuedi <stu@zurich.ibm.com> * * Copyright (C) 2016, IBM Corporation * * 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. * */ public class Main { public static int minFileBuf(long fileSize, int bufSize) { int fileLeftOver = Integer.MAX_VALUE; long _maxInt = (long) Integer.MAX_VALUE; if (fileSize < _maxInt) { fileLeftOver = (int) fileSize; } return Math.min(bufSize, fileLeftOver); } }