org.apache.catalina.util.Conversions Maven / Gradle / Ivy
/*
* 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.
*/
package org.apache.catalina.util;
import java.io.IOException;
public class Conversions {
private Conversions() {
// Utility class. Hide default constructor.
}
public static long byteArrayToLong(byte[] input) throws IOException {
if (input.length > 8) {
// TODO: Better message
throw new IOException();
}
int shift = 0;
long result = 0;
for (int i = input.length - 1; i >= 0; i--) {
result = result + ((input[i] & 0xFF) << shift);
shift += 8;
}
return result;
}
}