/**
* Copyright (C) 2010-2017 Structr GmbH
*
* This file is part of Structr <http://structr.org>.
*
* Structr is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Structr 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Structr. If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.cloud.message;
import java.io.IOException;
import java.util.Iterator;
import org.structr.cloud.CloudConnection;
import org.structr.cloud.CloudService;
import org.structr.common.error.FrameworkException;
/**
*
*
*/
public class PullChunk extends FileNodeChunk {
public PullChunk(final String containerId, final int sequenceNumber, final long fileSize) {
super(containerId, fileSize, sequenceNumber, CloudService.CHUNK_SIZE);
}
@Override
public void onRequest(CloudConnection serverConnection) throws IOException, FrameworkException {
final Iterator<FileNodeChunk> chunkIterator = (Iterator<FileNodeChunk>)serverConnection.getValue(containerId);
if (chunkIterator != null) {
if (chunkIterator.hasNext()) {
serverConnection.send(chunkIterator.next());
} else {
// chunk iterator is exhausted, remove it from context
// so that only one FileNodeEndChunk is sent
serverConnection.removeValue(containerId);
// return finishing end chunk
serverConnection.send(new FileNodeEndChunk(containerId, fileSize));
}
}
}
@Override
public void onResponse(CloudConnection clientConnection) throws IOException, FrameworkException {
}
@Override
public void afterSend(CloudConnection conn) {
}
}