package io.eguan.nbdsrv.client;
/*
* #%L
* Project eguan
* %%
* Copyright (C) 2012 - 2017 Oodrive
* %%
* 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.
* #L%
*/
import io.eguan.nbdsrv.packet.DataPushingCmd;
import io.eguan.nbdsrv.packet.DataPushingPacket;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Represents the task to disconnect the client.
*
* @author oodrive
* @author ebredzinski
*
*/
class DisconnectTask extends TaskAbstract {
/** NBD client */
private final NbdClient nbdClient;
DisconnectTask(final NbdClient nbdClient) {
this.nbdClient = nbdClient;
}
@Override
public final Boolean call() throws IOException {
final DataPushingPacket dataPushingPacket = new DataPushingPacket(DataPushingPacket.MAGIC,
DataPushingCmd.NBD_CMD_DISC, getHandle(), 0, 0);
final ByteBuffer header = DataPushingPacket.serialize(dataPushingPacket);
try {
nbdClient.writeSocket(header);
nbdClient.close();
}
finally {
DataPushingPacket.release(header);
}
return Boolean.TRUE;
}
}