1 /* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 28 package org.apache.hc.core5.http.io; 29 30 import java.io.IOException; 31 import java.io.InputStream; 32 33 import org.apache.hc.core5.http.HttpException; 34 import org.apache.hc.core5.http.MessageHeaders; 35 36 /** 37 * Message parser intended to build HTTP message head from an input stream. 38 * 39 * @param <T> 40 * {@link MessageHeaders} or a subclass 41 * 42 * @since 4.0 43 */ 44 public interface HttpMessageParser<T extends MessageHeaders> { 45 46 /** 47 * Generates an instance of {@link MessageHeaders} from the given input stream.. 48 * 49 * @param buffer Session input buffer 50 * @param inputStream Input stream 51 * @return HTTP message head 52 * @throws IOException in case of an I/O error 53 * @throws HttpException in case of HTTP protocol violation 54 */ 55 T parse(SessionInputBuffer buffer, InputStream inputStream) throws IOException, HttpException; 56 57 }