Examples of com.linkedin.databus.core.test.DbusEventGenerator.generateEvents()

Class com.linkedin.databus.core.test.DbusEventGenerator

Examples of com.linkedin.databus.core.test.DbusEventGenerator.generateEvents()

com.linkedin.databus.core.test.DbusEventGenerator.generateEvents()
Generate specified number of constant sized events. @param numEvents : Number of events desired @param windowSize : Max window size (transaction size) @param maxEventSize : maximum event size expected @param payloadSize : payload size in bytes @param useLastEventAsScn : if true, use count of last event of window as window scn; else use i/windowSize+1 @param eventVector : output container that is populated with the events @return last window number generated

    /*
     * Dump lots of events
     */
    events = new Vector<DbusEvent>();
    generator = new DbusEventGenerator(100);
    generator.generateEvents(655, 3, 150, 89, events);
    appender = new DbusEventAppender(events,dbusBuf,null);
    appender.run(); // running in the same thread
    LOG.info("Head:" + parser.toString(dbusBuf.getHead()) + ",Tail:" + parser.toString(dbusBuf.getTail()));


    headPos = dbusBuf.getHead();

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     * The event size is carefully created such that after adding 2nd
     * event CWP and tail points to the same location.
     */
    events = new Vector<DbusEvent>();
    generator = new DbusEventGenerator(10000);
    generator.generateEvents(3, 5, 100, 28, events);


    appender = new DbusEventAppender(events,dbusBuf,null);
    appender.run(); // running in the same thread


    LOG.info("Head:" + parser.toString(dbusBuf.getHead()) + ",Tail:" + parser.toString(dbusBuf.getTail()));

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    LOG.info("Head:" + parser.toString(dbusBuf.getHead()) + ",Tail:" + parser.toString(dbusBuf.getTail()));


    events = new Vector<DbusEvent>();
    generator = new DbusEventGenerator(10000);
    generator.generateEvents(3, 3, 120, 19, events);


    headPos = dbusBuf.getHead();
    tailPos = dbusBuf.getTail();
    headGenId = parser.bufferGenId(headPos);
    headIndexId = parser.bufferIndex(headPos);

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        new DbusEventBuffer(getConfig(1000,1000,100,500,AllocationPolicy.HEAP_MEMORY,
                                      QueuePolicy.BLOCK_ON_WRITE, AssertLevel.NONE));
    BufferPositionParser parser = dbusBuf.getBufferPositionParser();
    DbusEventGenerator generator = new DbusEventGenerator();
    Vector<DbusEvent> events = new Vector<DbusEvent>();
    generator.generateEvents(11, 11, 100, 10, events);


    // Add events to the EventBuffer
    DbusEventAppender appender = new DbusEventAppender(events,dbusBuf,null);
    appender.run(); // running in the same thread

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    BufferPositionParser parser = dbusBuf.getBufferPositionParser();
    final BufferPositionParser parser2 = dbusBuf2.getBufferPositionParser();


    DbusEventGenerator generator = new DbusEventGenerator();
    Vector<DbusEvent> events = new Vector<DbusEvent>();
    generator.generateEvents(24, 24, 100, 10, events);
    log.info("Num Events :" + events.size());


    // Add events to the EventBuffer
    DbusEventAppender appender = new DbusEventAppender(events, dbusBuf, null);
    appender.run();

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        new DbusEventBuffer(getConfig(10000, 10000, 320, 500, AllocationPolicy.HEAP_MEMORY,
                                      QueuePolicy.OVERWRITE_ON_WRITE, AssertLevel.ALL));


    DbusEventGenerator generator = new DbusEventGenerator();
    Vector<DbusEvent> events = new Vector<DbusEvent>();
    generator.generateEvents(215, 5, 100, 10, events);


    // Add events to the EventBuffer
    DbusEventAppender appender = new DbusEventAppender(events,dbusBuf,null);
    appender.run();

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    dbusBuf.getScnIndex().printVerboseString(LOG, Level.DEBUG);


    long lastScn = events.get(events.size() - 1).sequence();
    generator = new DbusEventGenerator(lastScn + 1);
    events = new Vector<DbusEvent>();
    generator.generateEvents(3, 3, 80, 10, events);
    appender = new DbusEventAppender(events,dbusBuf,null);
    appender.run();


    // Ensure SCNINdex tail did not move.
    assertEquals("ScnIndex Head Location", 256, dbusBuf.getScnIndex().getHead());

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    //event size:  10 + 61 = 71
    //window size:  5 * 71 + 61 = 416
    //layout: [61 + 23 * 416 + 5 * 71 = 9984 ] <WrapAround> [ 61 + 22 * 416 + 2 * 71 + 61 = 9416 ]
    //      [ H=Gen:0,Ofs:0,    T=Gen:0,Ofs:9984, L=10000 ]
    //      [ H=Gen:0,Ofs:9629, T=Gen:1,Ofs:9416, L=9984 ]
    generator.generateEvents(232, 5, 100, 10, events);


    // Add events to the EventBuffer
    DbusEventAppender appender = new DbusEventAppender(events,dbusBuf,null);
    appender.run();

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    long lastScn = events.get(events.size() - 1).sequence();
    generator = new DbusEventGenerator(lastScn - 1);
    events.clear();
    //event size: 10 + 61 = 71
    generator.generateEvents(2, 2, 75, 10, events);
    //intended layout: append 2 * 71  = 142 bytes
    //      [ H=Gen:0,Ofs:9629, T=Gen:1,Ofs:9558, L=9984 ]


    lastScn = events.get(events.size() - 1).sequence();
    generator = new DbusEventGenerator(lastScn - 1 );

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    lastScn = events.get(events.size() - 1).sequence();
    generator = new DbusEventGenerator(lastScn - 1 );
    //event size: 500 + 61 = 561
    //partial window size: 561  = 622
    generator.generateEvents(1, 1, 800, 500, events);
    //intended layout: append 561 bytes;
    //      [ H=Gen:1,Ofs:893, T=Gen:2,Ofs:561, L=9558 ]
    // head moves to first window after 561: 61 + 2 * 416 = 893 > 561


    //Set up the ReadChannel with new events

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