Examples with RotateLogEvent com.taobao.tddl.dbsync.binlog.event.RotateLogEvent used on opensource projects

Example 1 with RotateLogEvent

use of com.taobao.tddl.dbsync.binlog.event.RotateLogEvent in project canal by alibaba.

the class LocalBinLogConnection method dump.

public void dump(String binlogfilename, Long binlogPosition, SinkFunction func) throws IOException {
    File current = new File(directory, binlogfilename);
    FileLogFetcher fetcher = new FileLogFetcher(bufferSize);
    LogDecoder decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
    LogContext context = new LogContext();
    try {
        fetcher.open(current, binlogPosition);
        context.setLogPosition(new LogPosition(binlogfilename, binlogPosition));
        while (running) {
            boolean needContinue = true;
            LogEvent event = null;
            L: while (fetcher.fetch()) {
                do {
                    if (event == null) {
                        event = new RotateLogEvent(context.getLogPosition().getFileName(), context.getLogPosition().getPosition());
                    } else {
                        event = decoder.decode(fetcher, context);
                    }
                    if (event != null && !func.sink(event)) {
                        needContinue = false;
                        break L;
                    }
                } while (event != null);
            }
            if (needContinue) {
                // 读取下一个
                // 关闭上一个文件
                fetcher.close();
                File nextFile;
                if (needWait) {
                    nextFile = binlogs.waitForNextFile(current);
                } else {
                    nextFile = binlogs.getNextFile(current);
                }
                if (nextFile == null) {
                    break;
                }
                current = nextFile;
                fetcher.open(current);
                context.setLogPosition(new LogPosition(nextFile.getName()));
            } else {
                // 跳出
                break;
            }
        }
    } catch (InterruptedException e) {
        logger.warn("LocalBinLogConnection dump interrupted");
    } finally {
        if (fetcher != null) {
            fetcher.close();
        }
    }
}

Example 2 with RotateLogEvent

use of com.taobao.tddl.dbsync.binlog.event.RotateLogEvent in project canal by alibaba.

the class DirectLogFetcherTest method testSimple.

@Test
public void testSimple() {
    DirectLogFetcher fecther = new DirectLogFetcher();
    try {
        Class.forName("com.mysql.jdbc.Driver");
        Connection connection = DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306", "root", "hello");
        Statement statement = connection.createStatement();
        statement.execute("SET @master_binlog_checksum='@@global.binlog_checksum'");
        statement.execute("SET @mariadb_slave_capability='" + LogEvent.MARIA_SLAVE_CAPABILITY_MINE + "'");
        fecther.open(connection, "mysql-bin.000001", 4L, 2);
        LogDecoder decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
        LogContext context = new LogContext();
        while (fecther.fetch()) {
            LogEvent event = null;
            event = decoder.decode(fecther, context);
            if (event == null) {
                continue;
            // throw new RuntimeException("parse failed");
            }
            int eventType = event.getHeader().getType();
            switch(eventType) {
                case LogEvent.ROTATE_EVENT:
                    binlogFileName = ((RotateLogEvent) event).getFilename();
                    break;
                case LogEvent.WRITE_ROWS_EVENT_V1:
                case LogEvent.WRITE_ROWS_EVENT:
                    parseRowsEvent((WriteRowsLogEvent) event);
                    break;
                case LogEvent.UPDATE_ROWS_EVENT_V1:
                case LogEvent.UPDATE_ROWS_EVENT:
                    parseRowsEvent((UpdateRowsLogEvent) event);
                    break;
                case LogEvent.DELETE_ROWS_EVENT_V1:
                case LogEvent.DELETE_ROWS_EVENT:
                    parseRowsEvent((DeleteRowsLogEvent) event);
                    break;
                case LogEvent.QUERY_EVENT:
                    parseQueryEvent((QueryLogEvent) event);
                    break;
                case LogEvent.ROWS_QUERY_LOG_EVENT:
                    parseRowsQueryEvent((RowsQueryLogEvent) event);
                    break;
                case LogEvent.ANNOTATE_ROWS_EVENT:
                    parseAnnotateRowsEvent((AnnotateRowsEvent) event);
                    break;
                case LogEvent.XID_EVENT:
                    parseXidEvent((XidLogEvent) event);
                    break;
                default:
                    break;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        Assert.fail(e.getMessage());
    } finally {
        try {
            fecther.close();
        } catch (IOException e) {
            Assert.fail(e.getMessage());
        }
    }
}

Example 3 with RotateLogEvent

use of com.taobao.tddl.dbsync.binlog.event.RotateLogEvent in project canal by alibaba.

the class FileLogFetcherTest method testSimple.

@Test
public void testSimple() {
    FileLogFetcher fetcher = new FileLogFetcher(1024 * 16);
    try {
        LogDecoder decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
        LogContext context = new LogContext();
        File current = new File(directory, "mysql-bin.000001");
        fetcher.open(current, 2051L);
        context.setLogPosition(new LogPosition(current.getName()));
        while (fetcher.fetch()) {
            LogEvent event = null;
            event = decoder.decode(fetcher, context);
            if (event != null) {
                int eventType = event.getHeader().getType();
                switch(eventType) {
                    case LogEvent.ROTATE_EVENT:
                        binlogFileName = ((RotateLogEvent) event).getFilename();
                        break;
                    case LogEvent.WRITE_ROWS_EVENT_V1:
                    case LogEvent.WRITE_ROWS_EVENT:
                        parseRowsEvent((WriteRowsLogEvent) event);
                        break;
                    case LogEvent.UPDATE_ROWS_EVENT_V1:
                    case LogEvent.UPDATE_ROWS_EVENT:
                        parseRowsEvent((UpdateRowsLogEvent) event);
                        break;
                    case LogEvent.DELETE_ROWS_EVENT_V1:
                    case LogEvent.DELETE_ROWS_EVENT:
                        parseRowsEvent((DeleteRowsLogEvent) event);
                        break;
                    case LogEvent.QUERY_EVENT:
                        parseQueryEvent((QueryLogEvent) event);
                        break;
                    case LogEvent.ROWS_QUERY_LOG_EVENT:
                        parseRowsQueryEvent((RowsQueryLogEvent) event);
                        break;
                    case LogEvent.ANNOTATE_ROWS_EVENT:
                        parseAnnotateRowsEvent((AnnotateRowsEvent) event);
                        break;
                    case LogEvent.XID_EVENT:
                        parseXidEvent((XidLogEvent) event);
                        break;
                    default:
                        break;
                }
            }
        }
    } catch (Exception e) {
        Assert.fail(e.getMessage());
    } finally {
        try {
            fetcher.close();
        } catch (IOException e) {
            Assert.fail(e.getMessage());
        }
    }
}

Example 4 with RotateLogEvent

use of com.taobao.tddl.dbsync.binlog.event.RotateLogEvent in project canal by alibaba.

the class LogDecoder method decode.

/**
     * Deserialize an event from buffer.
     * 
     * @return <code>UknownLogEvent</code> if event type is unknown or skipped.
     */
public static LogEvent decode(LogBuffer buffer, LogHeader header, LogContext context) throws IOException {
    FormatDescriptionLogEvent descriptionEvent = context.getFormatDescription();
    LogPosition logPosition = context.getLogPosition();
    int checksumAlg = LogEvent.BINLOG_CHECKSUM_ALG_UNDEF;
    if (header.getType() != LogEvent.FORMAT_DESCRIPTION_EVENT) {
        checksumAlg = descriptionEvent.header.getChecksumAlg();
    } else {
        // 如果是format事件自己，也需要处理checksum
        checksumAlg = header.getChecksumAlg();
    }
    if (checksumAlg != LogEvent.BINLOG_CHECKSUM_ALG_OFF && checksumAlg != LogEvent.BINLOG_CHECKSUM_ALG_UNDEF) {
        // remove checksum bytes
        buffer.limit(header.getEventLen() - LogEvent.BINLOG_CHECKSUM_LEN);
    }
    switch(header.getType()) {
        case LogEvent.QUERY_EVENT:
            {
                QueryLogEvent event = new QueryLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.XID_EVENT:
            {
                XidLogEvent event = new XidLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.TABLE_MAP_EVENT:
            {
                TableMapLogEvent mapEvent = new TableMapLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                context.putTable(mapEvent);
                return mapEvent;
            }
        case LogEvent.WRITE_ROWS_EVENT_V1:
            {
                RowsLogEvent event = new WriteRowsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                event.fillTable(context);
                return event;
            }
        case LogEvent.UPDATE_ROWS_EVENT_V1:
            {
                RowsLogEvent event = new UpdateRowsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                event.fillTable(context);
                return event;
            }
        case LogEvent.DELETE_ROWS_EVENT_V1:
            {
                RowsLogEvent event = new DeleteRowsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                event.fillTable(context);
                return event;
            }
        case LogEvent.ROTATE_EVENT:
            {
                RotateLogEvent event = new RotateLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition = new LogPosition(event.getFilename(), event.getPosition());
                context.setLogPosition(logPosition);
                return event;
            }
        case LogEvent.LOAD_EVENT:
        case LogEvent.NEW_LOAD_EVENT:
            {
                LoadLogEvent event = new LoadLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.SLAVE_EVENT:
            /* can never happen (unused event) */
            {
                if (logger.isWarnEnabled())
                    logger.warn("Skipping unsupported SLAVE_EVENT from: " + context.getLogPosition());
                break;
            }
        case LogEvent.CREATE_FILE_EVENT:
            {
                CreateFileLogEvent event = new CreateFileLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.APPEND_BLOCK_EVENT:
            {
                AppendBlockLogEvent event = new AppendBlockLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.DELETE_FILE_EVENT:
            {
                DeleteFileLogEvent event = new DeleteFileLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.EXEC_LOAD_EVENT:
            {
                ExecuteLoadLogEvent event = new ExecuteLoadLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.START_EVENT_V3:
            {
                /* This is sent only by MySQL <=4.x */
                StartLogEventV3 event = new StartLogEventV3(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.STOP_EVENT:
            {
                StopLogEvent event = new StopLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.INTVAR_EVENT:
            {
                IntvarLogEvent event = new IntvarLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.RAND_EVENT:
            {
                RandLogEvent event = new RandLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.USER_VAR_EVENT:
            {
                UserVarLogEvent event = new UserVarLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.FORMAT_DESCRIPTION_EVENT:
            {
                descriptionEvent = new FormatDescriptionLogEvent(header, buffer, descriptionEvent);
                context.setFormatDescription(descriptionEvent);
                return descriptionEvent;
            }
        case LogEvent.PRE_GA_WRITE_ROWS_EVENT:
            {
                if (logger.isWarnEnabled())
                    logger.warn("Skipping unsupported PRE_GA_WRITE_ROWS_EVENT from: " + context.getLogPosition());
                // description_event);
                break;
            }
        case LogEvent.PRE_GA_UPDATE_ROWS_EVENT:
            {
                if (logger.isWarnEnabled())
                    logger.warn("Skipping unsupported PRE_GA_UPDATE_ROWS_EVENT from: " + context.getLogPosition());
                // description_event);
                break;
            }
        case LogEvent.PRE_GA_DELETE_ROWS_EVENT:
            {
                if (logger.isWarnEnabled())
                    logger.warn("Skipping unsupported PRE_GA_DELETE_ROWS_EVENT from: " + context.getLogPosition());
                // description_event);
                break;
            }
        case LogEvent.BEGIN_LOAD_QUERY_EVENT:
            {
                BeginLoadQueryLogEvent event = new BeginLoadQueryLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.EXECUTE_LOAD_QUERY_EVENT:
            {
                ExecuteLoadQueryLogEvent event = new ExecuteLoadQueryLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.INCIDENT_EVENT:
            {
                IncidentLogEvent event = new IncidentLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.HEARTBEAT_LOG_EVENT:
            {
                HeartbeatLogEvent event = new HeartbeatLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.IGNORABLE_LOG_EVENT:
            {
                IgnorableLogEvent event = new IgnorableLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.ROWS_QUERY_LOG_EVENT:
            {
                RowsQueryLogEvent event = new RowsQueryLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.WRITE_ROWS_EVENT:
            {
                RowsLogEvent event = new WriteRowsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                event.fillTable(context);
                return event;
            }
        case LogEvent.UPDATE_ROWS_EVENT:
            {
                RowsLogEvent event = new UpdateRowsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                event.fillTable(context);
                return event;
            }
        case LogEvent.DELETE_ROWS_EVENT:
            {
                RowsLogEvent event = new DeleteRowsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                event.fillTable(context);
                return event;
            }
        case LogEvent.GTID_LOG_EVENT:
        case LogEvent.ANONYMOUS_GTID_LOG_EVENT:
            {
                GtidLogEvent event = new GtidLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.PREVIOUS_GTIDS_LOG_EVENT:
            {
                PreviousGtidsLogEvent event = new PreviousGtidsLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.ANNOTATE_ROWS_EVENT:
            {
                AnnotateRowsEvent event = new AnnotateRowsEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.BINLOG_CHECKPOINT_EVENT:
            {
                BinlogCheckPointLogEvent event = new BinlogCheckPointLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.GTID_EVENT:
            {
                MariaGtidLogEvent event = new MariaGtidLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        case LogEvent.GTID_LIST_EVENT:
            {
                MariaGtidListLogEvent event = new MariaGtidListLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            }
        default:
            /*
                 * Create an object of Ignorable_log_event for unrecognized
                 * sub-class. So that SLAVE SQL THREAD will only update the
                 * position and continue.
                 */
            if ((buffer.getUint16(LogEvent.FLAGS_OFFSET) & LogEvent.LOG_EVENT_IGNORABLE_F) > 0) {
                IgnorableLogEvent event = new IgnorableLogEvent(header, buffer, descriptionEvent);
                /* updating position in context */
                logPosition.position = header.getLogPos();
                return event;
            } else {
                if (logger.isWarnEnabled())
                    logger.warn("Skipping unrecognized binlog event " + LogEvent.getTypeName(header.getType()) + " from: " + context.getLogPosition());
            }
    }
    /* updating position in context */
    logPosition.position = header.getLogPos();
    /* Unknown or unsupported log event */
    return new UnknownLogEvent(header);
}