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/*
* EmptyConsumer.java February 2007
*
* Copyright (C) 2001, Niall Gallagher <niallg@users.sf.net>
*
* Licensed 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.
*/
package org.simpleframework.http.message;
import org.simpleframework.transport.ByteCursor;
/**
* The <code>EmptyConsumer</code> object is used to represent a body
* of zero length. This is the most common body consumer created as
* it represents the body for GET messages that have nothing within
* the body part.
*
* @author Niall Gallagher
*/
public class EmptyConsumer implements BodyConsumer {
/**
* This is used to acquire the body that has been consumed. This
* will return a body which can be used to read the content of
* the message, also if the request is multipart upload then all
* of the parts are provided as <code>Attachment</code> objects.
* Each part can then be read as an individual message.
*
* @return the body that has been consumed by this instance
*/
public Body getBody() {
return new BufferBody();
}
/**
* This method will not consume any bytes from the cursor. This
* ensures that the next byte read from the stream is the first
* character of the next HTTP message within the pipeline.
*
* @param cursor this is the cursor which will not be read from
*/
public void consume(ByteCursor cursor) {
return;
}
/**
* This will return true immediately. Because the empty consumer
* represents a zero length body and no bytes are read from the
* cursor, this should not be processed and return finished.
*
* @return this will always return true for the zero length body
*/
public boolean isFinished() {
return true;
}
}
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