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* $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/httpcore/tags/4.0.1/httpcore-nio/src/main/java/org/apache/http/nio/entity/ProducingNHttpEntity.java $
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* $Date: 2009-02-14 18:28:41 +0100 (Sat, 14 Feb 2009) $
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* ====================================================================
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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package org.apache.http.nio.entity;
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import java.io.IOException;
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import org.apache.http.HttpEntity;
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import org.apache.http.nio.ContentEncoder;
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import org.apache.http.nio.IOControl;
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* An {@link HttpEntity} that can stream content out into a
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* {@link ContentEncoder}.
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public interface ProducingNHttpEntity extends HttpEntity {
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* Notification that content should be written to the encoder.
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* {@link IOControl} instance passed as a parameter to the method can be
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* used to suspend output events if the entity is temporarily unable to
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* produce more content.
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* When all content is finished, this <b>MUST</b> call {@link ContentEncoder#complete()}.
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* Failure to do so could result in the entity never being written.
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* @param encoder content encoder.
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* @param ioctrl I/O control of the underlying connection.
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void produceContent(ContentEncoder encoder, IOControl ioctrl) throws IOException;
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* Notification that any resources allocated for writing can be released.
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void finish() throws IOException;