1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.conscrypt; 19 20 /** 21 * This interface represents the ability of the 22 * classes to provide the chunks of data. 23 */ 24 public interface DataStream { 25 26 /** 27 * Checks if there is data to be read. 28 * @return true if there is the input data in the stream, 29 * false otherwise 30 */ 31 public boolean hasData(); 32 33 /** 34 * Retrieves the data of specified length from the stream. 35 * If the data size in the stream is less than specified length, 36 * method returns all the data contained in the stream. 37 * @return byte array containing the demanded data. 38 */ 39 public byte[] getData(int length); 40 41 } 42 43
