Search in sources :

Example 1 with CanalEventSink

use of com.alibaba.otter.canal.sink.CanalEventSink in project otter by alibaba.

the class CanalEmbedSelector method start.

public void start() {
    if (running) {
        return;
    }
    // 获取destination/filter参数
    Pipeline pipeline = configClientService.findPipeline(pipelineId);
    filter = CanalFilterSupport.makeFilterExpression(pipeline);
    destination = pipeline.getParameters().getDestinationName();
    batchSize = pipeline.getParameters().getMainstemBatchsize();
    batchTimeout = pipeline.getParameters().getBatchTimeout();
    ddlSync = pipeline.getParameters().getDdlSync();
    final boolean syncFull = pipeline.getParameters().getSyncMode().isRow() || pipeline.getParameters().isEnableRemedy();
    // 暂时使用skip load代替
    filterTableError = pipeline.getParameters().getSkipSelectException();
    if (pipeline.getParameters().getDumpSelector() != null) {
        dump = pipeline.getParameters().getDumpSelector();
    }
    if (pipeline.getParameters().getDumpSelectorDetail() != null) {
        dumpDetail = pipeline.getParameters().getDumpSelectorDetail();
    }
    canalServer.setCanalInstanceGenerator(new CanalInstanceGenerator() {

        public CanalInstance generate(String destination) {
            Canal canal = canalConfigClient.findCanal(destination);
            final OtterAlarmHandler otterAlarmHandler = new OtterAlarmHandler();
            otterAlarmHandler.setPipelineId(pipelineId);
            // 注入一下spring资源
            OtterContextLocator.autowire(otterAlarmHandler);
            // 设置下slaveId,保证多个piplineId下重复引用时不重复
            // 默认基数
            long slaveId = 10000;
            if (canal.getCanalParameter().getSlaveId() != null) {
                slaveId = canal.getCanalParameter().getSlaveId();
            }
            canal.getCanalParameter().setSlaveId(slaveId + pipelineId);
            canal.getCanalParameter().setDdlIsolation(ddlSync);
            canal.getCanalParameter().setFilterTableError(filterTableError);
            CanalInstanceWithManager instance = new CanalInstanceWithManager(canal, filter) {

                protected CanalHAController initHaController() {
                    HAMode haMode = parameters.getHaMode();
                    if (haMode.isMedia()) {
                        return new MediaHAController(parameters.getMediaGroup(), parameters.getDbUsername(), parameters.getDbPassword(), parameters.getDefaultDatabaseName());
                    } else {
                        return super.initHaController();
                    }
                }

                protected void startEventParserInternal(CanalEventParser parser, boolean isGroup) {
                    super.startEventParserInternal(parser, isGroup);
                    if (eventParser instanceof MysqlEventParser) {
                        // 设置支持的类型
                        ((MysqlEventParser) eventParser).setSupportBinlogFormats("ROW");
                        if (syncFull) {
                            ((MysqlEventParser) eventParser).setSupportBinlogImages("FULL");
                        } else {
                            ((MysqlEventParser) eventParser).setSupportBinlogImages("FULL,MINIMAL");
                        }
                        MysqlEventParser mysqlEventParser = (MysqlEventParser) eventParser;
                        CanalHAController haController = mysqlEventParser.getHaController();
                        if (haController instanceof MediaHAController) {
                            if (isGroup) {
                                throw new CanalException("not support group database use media HA");
                            }
                            ((MediaHAController) haController).setCanalHASwitchable(mysqlEventParser);
                        }
                        if (!haController.isStart()) {
                            haController.start();
                        }
                        // 基于media的Ha,直接从tddl中获取数据库信息
                        if (haController instanceof MediaHAController) {
                            AuthenticationInfo authenticationInfo = ((MediaHAController) haController).getAvailableAuthenticationInfo();
                            ((MysqlEventParser) eventParser).setMasterInfo(authenticationInfo);
                        }
                    }
                }
            };
            instance.setAlarmHandler(otterAlarmHandler);
            CanalEventSink eventSink = instance.getEventSink();
            if (eventSink instanceof AbstractCanalEventSink) {
                handler = new OtterDownStreamHandler();
                handler.setPipelineId(pipelineId);
                handler.setDetectingIntervalInSeconds(canal.getCanalParameter().getDetectingIntervalInSeconds());
                // 注入一下spring资源
                OtterContextLocator.autowire(handler);
                // 添加到开头
                ((AbstractCanalEventSink) eventSink).addHandler(handler, 0);
                handler.start();
            }
            return instance;
        }
    });
    canalServer.start();
    canalServer.start(destination);
    this.clientIdentity = new ClientIdentity(destination, pipeline.getParameters().getMainstemClientId(), filter);
    // 发起一次订阅
    canalServer.subscribe(clientIdentity);
    running = true;
}
Also used : Canal(com.alibaba.otter.canal.instance.manager.model.Canal) CanalEventParser(com.alibaba.otter.canal.parse.CanalEventParser) AbstractCanalEventSink(com.alibaba.otter.canal.sink.AbstractCanalEventSink) CanalEventSink(com.alibaba.otter.canal.sink.CanalEventSink) HAMode(com.alibaba.otter.canal.instance.manager.model.CanalParameter.HAMode) CanalInstanceWithManager(com.alibaba.otter.canal.instance.manager.CanalInstanceWithManager) AuthenticationInfo(com.alibaba.otter.canal.parse.support.AuthenticationInfo) Pipeline(com.alibaba.otter.shared.common.model.config.pipeline.Pipeline) CanalInstance(com.alibaba.otter.canal.instance.core.CanalInstance) ClientIdentity(com.alibaba.otter.canal.protocol.ClientIdentity) MediaHAController(com.alibaba.otter.canal.extend.ha.MediaHAController) MysqlEventParser(com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser) AbstractCanalEventSink(com.alibaba.otter.canal.sink.AbstractCanalEventSink) CanalInstanceGenerator(com.alibaba.otter.canal.instance.core.CanalInstanceGenerator) CanalHAController(com.alibaba.otter.canal.parse.ha.CanalHAController) CanalException(com.alibaba.otter.canal.common.CanalException)

Aggregations

CanalException (com.alibaba.otter.canal.common.CanalException)1 MediaHAController (com.alibaba.otter.canal.extend.ha.MediaHAController)1 CanalInstance (com.alibaba.otter.canal.instance.core.CanalInstance)1 CanalInstanceGenerator (com.alibaba.otter.canal.instance.core.CanalInstanceGenerator)1 CanalInstanceWithManager (com.alibaba.otter.canal.instance.manager.CanalInstanceWithManager)1 Canal (com.alibaba.otter.canal.instance.manager.model.Canal)1 HAMode (com.alibaba.otter.canal.instance.manager.model.CanalParameter.HAMode)1 CanalEventParser (com.alibaba.otter.canal.parse.CanalEventParser)1 CanalHAController (com.alibaba.otter.canal.parse.ha.CanalHAController)1 MysqlEventParser (com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser)1 AuthenticationInfo (com.alibaba.otter.canal.parse.support.AuthenticationInfo)1 ClientIdentity (com.alibaba.otter.canal.protocol.ClientIdentity)1 AbstractCanalEventSink (com.alibaba.otter.canal.sink.AbstractCanalEventSink)1 CanalEventSink (com.alibaba.otter.canal.sink.CanalEventSink)1 Pipeline (com.alibaba.otter.shared.common.model.config.pipeline.Pipeline)1