1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.giraph.utils; 20 21 /** 22 * UnsafeReusableByteArrayInput is a data structure to read from a 23 * byte buffer with a read pointer that can be moved to desired location 24 */ 25 public class UnsafeReusableByteArrayInput extends UnsafeArrayReads { 26 27 /** 28 * Default Constructor 29 */ 30 public UnsafeReusableByteArrayInput() { 31 super(null, 0, 0); 32 } 33 34 /** 35 * Initialize the object with all required parameters 36 * 37 * @param buf byte buffer 38 * @param offset offset in the buffer 39 * @param length length of the valid data 40 */ 41 public void initialize(byte[] buf, int offset, int length) { 42 this.buffer = buf; 43 this.position = offset; 44 this.limit = length; 45 } 46 }