Here you can find the source of readInt(ReadableByteChannel channel, ByteBuffer buffer)
public static Integer readInt(ReadableByteChannel channel, ByteBuffer buffer) throws IOException
//package com.java2s; /**/*from w w w .j a v a2s . c o m*/ * Copyright (c) 2002-2014 "Neo Technology," * Network Engine for Objects in Lund AB [http://neotechnology.com] * * This file is part of Neo4j. * * Neo4j is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.io.IOException; import java.nio.ByteBuffer; import java.nio.channels.ReadableByteChannel; public class Main { public static Integer readInt(ReadableByteChannel channel, ByteBuffer buffer) throws IOException { return readAndFlip(channel, buffer, 4) ? buffer.getInt() : null; } public static boolean readAndFlip(ReadableByteChannel channel, ByteBuffer buffer, int bytes) throws IOException { buffer.clear(); buffer.limit(bytes); while (buffer.hasRemaining()) { int read = channel.read(buffer); if (read == -1) { return false; } } buffer.flip(); return true; } }