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/*
* PartEntryFactory.java February 2007
*
* Copyright (C) 2007, 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.common.buffer.Allocator;
/**
* This <code>PartEntryFactory</code> object provides a factory for
* creating part entry consumers. The part entry consumers created
* read individual entries from a list of parts within a stream.
* This is basically a convenience factory for the list consumer.
*
* @author Niall Gallagher
*
* @see org.simpleframework.http.message.PartSeriesConsumer
*/
class PartEntryFactory {
/**
* This is used to accumulate all the parts of the upload.
*/
private final PartSeries series;
/**
* This is used to allocate the buffers used by the entry.
*/
private final Allocator allocator;
/**
* This is the terminal token used to delimiter the upload.
*/
private final byte[] terminal;
/**
* This is the length of the parent part series body.
*/
private final long length;
/**
* Constructor for the <code>PartEntryFactory</code> object.
* This is used to create a factory for entry consumers that
* can be used to read an entry from a part list.
*
* @param allocator this is the allocator used for buffers
* @param series this is the list of parts that are extracted
* @param terminal this is the terminal buffer to be used
* @param length this is the length of the parent part series
*/
public PartEntryFactory(Allocator allocator, PartSeries series, byte[] terminal, long length) {
this.allocator = allocator;
this.terminal = terminal;
this.series = series;
this.length = length;
}
/**
* This creates a new part entry consumer that can be used to
* read the next part from the list. The consumer instantiated
* by this factory acquires the allocator, list and boundary
* from the enclosing part list consumer instance.
*
* @return a part entry consumer for this part list consumer
*/
public PartEntryConsumer getInstance() {
return new PartEntryConsumer(allocator, series, terminal, length);
}
}
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