com.alachisoft.ncache.client.internal.command.QueueDequeueCommand Maven / Gradle / Ivy

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package com.alachisoft.ncache.client.internal.command;

import Alachisoft.NCache.Common.Caching.UserBinaryObject;
import Alachisoft.NCache.Common.DataTypes.Queue.QueueDequeueOperation;
import Alachisoft.NCache.Common.JSON.ExtendedJsonValueBase;
import com.alachisoft.ncache.common.protobuf.CollectionItemProtocol;
import com.alachisoft.ncache.common.protobuf.QueueCommandProtocol;
import com.alachisoft.ncache.common.protobuf.QueueDequeueProtocol;
import com.google.protobuf.ByteString;

import java.nio.charset.StandardCharsets;

public class QueueDequeueCommand extends QueueCommandBase {
    private QueueDequeueOperation.OpType _operationType;
    private ExtendedJsonValueBase _value;
    private QueueDequeueProtocol.QueueDequeue.Builder _queueDequeue;

    public QueueDequeueCommand(QueueDequeueOperation operation)
    {
        super.name = "QueueDequeue";
        super.key = operation.getName();
        _writeThruOption = operation.getWriteThruOptions();
        _lockId = (String)operation.getLockId();
        _lockTimeout = operation.getLockTimeout();
        _operationType = operation.getOperationType();
        _value = operation.getItem();
    }

    @Override
    public RequestType getCommandRequestType()
    {
        return RequestType.AtomicWrite;
    }

    @Override
    public CommandType getCommandType()
    {
        return CommandType.DATA_TYPE;
    }

    @Override
    protected void createCommand()
    {
        _queueDequeue = QueueDequeueProtocol.QueueDequeue.newBuilder();

        if (_value != null)
        {
            UserBinaryObject valueObject = UserBinaryObject.createUserBinaryObject(_value.toJson().getBytes(StandardCharsets.UTF_8));
            CollectionItemProtocol.CollectionItem.Builder valueItem = CollectionItemProtocol.CollectionItem.newBuilder();
            for(byte[] bytes : valueObject.getDataList())
                valueItem.addData(ByteString.copyFrom(bytes));

            _queueDequeue.setItem(valueItem);
        }

        switch (_operationType)
        {
            case Dequeue:
                _queueDequeue.setOperationType(QueueDequeueProtocol.QueueDequeue.OperationType.Dequeue);
                break;

            case TryDequeueMilliSeconds:
                _queueDequeue.setOperationType(QueueDequeueProtocol.QueueDequeue.OperationType.TryDequeueMilliSeconds);
                break;

            case TryDequeueTimespan:
                _queueDequeue.setOperationType(QueueDequeueProtocol.QueueDequeue.OperationType.TryDequeueTimespan);
                break;
        }

        super.createCommand();

        _queueCommandBuilder.setType(QueueCommandProtocol.QueueCommand.Type.QUEUE_DEQUEUE);
        _queueCommandBuilder.setQueueDequeue(_queueDequeue);
    }
}