| /* |
| * ==================================================================== |
| * 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.support; |
| |
| import java.io.IOException; |
| |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpResponse; |
| import org.apache.hc.core5.http.HttpStatus; |
| import org.apache.hc.core5.http.message.BasicHttpResponse; |
| import org.apache.hc.core5.http.nio.AsyncEntityProducer; |
| import org.apache.hc.core5.http.nio.AsyncPushProducer; |
| import org.apache.hc.core5.http.nio.DataStreamChannel; |
| import org.apache.hc.core5.http.nio.ResponseChannel; |
| import org.apache.hc.core5.http.protocol.HttpContext; |
| import org.apache.hc.core5.util.Args; |
| |
| /** |
| * Basic implementation of {@link AsyncPushProducer} that produces one fixed response |
| * and relies on a {@link AsyncEntityProducer} to generate response entity stream. |
| * |
| * @since 5.0 |
| */ |
| public class BasicPushProducer implements AsyncPushProducer { |
| |
| private final HttpResponse response; |
| private final AsyncEntityProducer dataProducer; |
| |
| public BasicPushProducer(final HttpResponse response, final AsyncEntityProducer dataProducer) { |
| this.response = Args.notNull(response, "Response"); |
| this.dataProducer = Args.notNull(dataProducer, "Entity producer"); |
| } |
| |
| public BasicPushProducer(final int code, final AsyncEntityProducer dataProducer) { |
| this(new BasicHttpResponse(code), dataProducer); |
| } |
| |
| public BasicPushProducer(final AsyncEntityProducer dataProducer) { |
| this(HttpStatus.SC_OK, dataProducer); |
| } |
| |
| @Override |
| public void produceResponse(final ResponseChannel channel, final HttpContext httpContext) throws HttpException, IOException { |
| channel.sendResponse(response, dataProducer, httpContext); |
| } |
| |
| @Override |
| public int available() { |
| return dataProducer != null ? dataProducer.available() : 0; |
| } |
| |
| @Override |
| public void produce(final DataStreamChannel channel) throws IOException { |
| if (dataProducer != null) { |
| dataProducer.produce(channel); |
| } |
| } |
| |
| @Override |
| public void failed(final Exception cause) { |
| releaseResources(); |
| } |
| |
| @Override |
| public void releaseResources() { |
| if (dataProducer != null) { |
| dataProducer.releaseResources(); |
| } |
| } |
| |
| } |