UserDefinedStreamValidation.java

/**
 * Copyright (C) 2014 Stratio (http://stratio.com)
 *
 * 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 com.stratio.decision.functions.validator;

import com.stratio.decision.commons.constants.ReplyCode;
import com.stratio.decision.commons.messages.StratioStreamingMessage;
import com.stratio.decision.exception.RequestValidationException;
import com.stratio.decision.service.StreamOperationService;

public class UserDefinedStreamValidation extends BaseSiddhiRequestValidation {

    public UserDefinedStreamValidation(StreamOperationService streamOperationService) {
        super(streamOperationService);
    }

    public UserDefinedStreamValidation() {
        super();
    }

    private final static String INTERNAL_STREAM_DROP_NOT_ALLOWED = "Cannot delete the internal stream %s";

    @Override
    public void validate(StratioStreamingMessage request) throws RequestValidationException {
        if (!getStreamOperationService().isUserDefined(request.getStreamName())) {
            throw new RequestValidationException(ReplyCode.KO_STREAM_OPERATION_NOT_ALLOWED.getCode(), String.format(
                    INTERNAL_STREAM_DROP_NOT_ALLOWED, request.getStreamName()));
        }

    }

}