/*
 * Copyright (C) 2009-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */
package org.alfresco.repo.transfer;

import org.alfresco.service.cmr.repository.ContentData;
import org.alfresco.service.cmr.transfer.TransferException;

/**
 * The Content Chunker Splits Content into "Chunks" of a given size.
 * 
 * So, for example, if the chunk size is 10MB and there are 6 files of 2MB then 
 * there will be one chunk containing 5 chunks and the remaining 2MB will remain.
 * <p>
 * Call the addContent method to add ContentData to the chunker.
 * <p>
 * Call the setHandler method to set the handler to process chunks of content.
 * <p>
 * Call the flush() method after the last call to addContent to flush the remaining 
 * buffered content.
 * @author Mark
 */
public interface ContentChunker
{
    /**
     * add content data to the chunker
     */
    public void addContent(ContentData data) throws TransferException;
    
    /**
     * flush any remaining content data
     */
    public void flush() throws TransferException;

    /**
     * 
     * @param chunkSize
     */
    public void setChunkSize(long chunkSize);

    /**
     * 
     * @return
     */
    public long getChunkSize();

    /**
     * 
     * @param handler
     */
    public void setHandler(ContentChunkProcessor handler);

}