com.espertech.esper.multithread.StmtNamedWindowConsumeCallable.java Source code

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Here is the source code for com.espertech.esper.multithread.StmtNamedWindowConsumeCallable.java

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/*
 * *************************************************************************************
 *  Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 *  http://esper.codehaus.org                                                          *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 * *************************************************************************************
 */

package com.espertech.esper.multithread;

import com.espertech.esper.client.EPServiceProvider;
import com.espertech.esper.support.bean.SupportBean_A;
import com.espertech.esper.support.bean.SupportMarketDataBean;

import java.util.concurrent.Callable;
import java.util.List;
import java.util.ArrayList;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class StmtNamedWindowConsumeCallable implements Callable {
    private final EPServiceProvider engine;
    private final int numRepeats;
    private final String threadKey;

    public StmtNamedWindowConsumeCallable(String threadKey, EPServiceProvider engine, int numRepeats) {
        this.engine = engine;
        this.numRepeats = numRepeats;
        this.threadKey = threadKey;
    }

    public Object call() throws Exception {
        List<String> eventKeys = new ArrayList<String>(numRepeats);
        try {
            for (int loop = 0; loop < numRepeats; loop++) {
                // Insert event into named window
                String theEvent = "E" + threadKey + "_" + loop;
                eventKeys.add(theEvent);
                sendMarketBean(theEvent, 0);
            }
        } catch (Exception ex) {
            log.fatal("Error in thread " + Thread.currentThread().getId(), ex);
            return null;
        }
        return eventKeys;
    }

    private void sendMarketBean(String symbol, long volume) {
        SupportMarketDataBean bean = new SupportMarketDataBean(symbol, 0, volume, "");
        engine.getEPRuntime().sendEvent(bean);
    }

    private static final Log log = LogFactory.getLog(StmtNamedWindowConsumeCallable.class);
}