| /** |
| * 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.s4.comm; |
| |
| import org.apache.s4.base.Hasher; |
| |
| /** |
| * Simple hasher implementation. |
| * |
| */ |
| public class DefaultHasher implements Hasher { |
| |
| @Override |
| public long hash(String hashKey) { |
| int b = 378551; |
| int a = 63689; |
| long hash = 0; |
| |
| for (int i = 0; i < hashKey.length(); i++) { |
| hash = hash * a + hashKey.charAt(i); |
| a = a * b; |
| } |
| |
| return Math.abs(hash); |
| } |
| |
| } |