/*
* $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/httpcore/tags/4.0.1/httpcore-nio/src/main/java/org/apache/http/nio/ContentDecoder.java $
* $Revision: 744541 $
* $Date: 2009-02-14 18:26:23 +0100 (Sat, 14 Feb 2009) $
*
* ====================================================================
* 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.http.nio;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Abstract HTTP content decoder. HTTP content decoders can be used
* to read entity content from the underlying channel in small
* chunks and apply the required coding transformation.
*
*
* @version $Revision: 744541 $
*
* @since 4.0
*/
public interface ContentDecoder {
/**
* Reads a portion of content from the underlying channel
*
* @param dst The buffer into which entity content is to be transferred
* @return The number of bytes read, possibly zero, or -1 if the
* channel has reached end-of-stream
* @throws IOException if I/O error occurs while reading content
*/
int read(ByteBuffer dst) throws IOException;
/**
* Returns <code>true</code> if the entity has been received in its
* entirety.
*
* @return <code>true</code> if all the content has been consumed,
* <code>false</code> otherwise.
*/
boolean isCompleted();
}
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