ActionEnabledValidation.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.StreamAction;
import com.stratio.decision.commons.messages.StratioStreamingMessage;
import com.stratio.decision.exception.RequestValidationException;
import com.stratio.decision.service.StreamOperationService;

public class ActionEnabledValidation extends BaseSiddhiRequestValidation {

    private final static String ACTION_ALREADY_ENABLED = "Action %s already enabled";

    private final StreamAction streamAction;
    private final int specificErrorCode;

    public ActionEnabledValidation(StreamOperationService streamOperationService, StreamAction streamAction,
            int specificErrorCode) {
        super(streamOperationService);
        this.streamAction = streamAction;
        this.specificErrorCode = specificErrorCode;
    }

    public ActionEnabledValidation(StreamAction streamAction,
            int specificErrorCode) {
        super();
        this.streamAction = streamAction;
        this.specificErrorCode = specificErrorCode;
    }

    @Override
    public void validate(StratioStreamingMessage request) throws RequestValidationException {
        if (getStreamOperationService().isActionEnabled(request.getStreamName(), streamAction)) {
            throw new RequestValidationException(specificErrorCode, String.format(ACTION_ALREADY_ENABLED, streamAction));
        }
    }

}