/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
/**
* ByteUtilities.java - Byte manipulation functions.
*
* @author Apache MINA Project
* @since MINA 2.0.0-M3
*/
public class Util{
/**
* Returns the integer represented by up to 4 bytes in network byte order.
*
* @param buf the buffer to read the bytes from
* @param start
* @param count
* @return
*/
public static int networkByteOrderToInt(byte[] buf, int start, int count) {
if (count > 4) {
throw new IllegalArgumentException(
"Cannot handle more than 4 bytes");
}
int result = 0;
for (int i = 0; i < count; i++) {
result <<= 8;
result |= (buf[start + i] & 0xff);
}
return result;
}
}