InputEntryValve.java

/*
 * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. licenses this file to you 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 org.wso2.siddhi.core.stream.input;

import org.wso2.siddhi.core.config.ExecutionPlanContext;
import org.wso2.siddhi.core.event.Event;
import org.wso2.siddhi.core.util.ThreadBarrier;

import java.util.List;

/**
 * Implementation of {@link InputProcessor} which inject the event to the next input processor through a valve.
 */
public class InputEntryValve implements InputProcessor {

    private ThreadBarrier barrier;
    private InputProcessor inputProcessor;


    public InputEntryValve(ExecutionPlanContext executionPlanContext, InputProcessor inputProcessor) {
        this.barrier = executionPlanContext.getThreadBarrier();
        this.inputProcessor = inputProcessor;
    }

    @Override
    public void send(Event event, int streamIndex) {
        barrier.pass();
        inputProcessor.send(event, streamIndex);
    }

    @Override
    public void send(Event[] events, int streamIndex) {
        barrier.pass();
        inputProcessor.send(events, streamIndex);
    }

    @Override
    public void send(List<Event> events, int streamIndex) {
        barrier.pass();
        inputProcessor.send(events, streamIndex);
    }

    @Override
    public void send(long timeStamp, Object[] data, int streamIndex) {
        barrier.pass();
        inputProcessor.send(timeStamp, data, streamIndex);
    }
}