| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.core5.http.nio; |
| |
| import java.io.IOException; |
| |
| /** |
| * Abstract asynchronous data producer. |
| * |
| * @since 5.0 |
| */ |
| public interface AsyncDataProducer extends ResourceHolder { |
| |
| /** |
| * Returns the number of bytes immediately available for output. |
| * This method can be used as a hint to control output events |
| * of the underlying I/O session. |
| * |
| * @return the number of bytes immediately available for output |
| */ |
| int available(); |
| |
| /** |
| * Triggered to signal the ability of the underlying data channel |
| * to accept more data. The data producer can choose to write data |
| * immediately inside the call or asynchronously at some later point. |
| * |
| * @param channel the data channel capable to accepting more data. |
| */ |
| void produce(DataStreamChannel channel) throws IOException; |
| |
| } |