Java CanalEntry.RowData方法代码示例

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
@Override
public void put(List<Event> list) throws InterruptedException, CanalStoreException {
    if (CollectionUtils.isNotEmpty(list)) {
        for (Event event : list) {
            CanalEntry.Entry entry = event.getEntry();
            try {
                CanalEntry.RowChange rowChange = CanalEntry.RowChange.parseFrom(entry.getStoreValue());
                CanalEntry.EventType eventType = rowChange.getEventType();

                if (eventType == CanalEntry.EventType.INSERT || eventType == CanalEntry.EventType.UPDATE || eventType == CanalEntry.EventType.DELETE) {
                    List<CanalEntry.RowData> rowDatas = rowChange.getRowDatasList();
                    for (CanalEntry.RowData rowData : rowDatas) {
                        sendKafkaMsg(rowData, entry, eventType);
                    }
                }
            } catch (InvalidProtocolBufferException e) {
                LOGGER.error(e.getMessage(), e);
            }
        }
    }
}
 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
private ElasticsearchMetadata.EsEntry getElasticsearchMetadata(CanalEntry.Entry entry) throws InvalidProtocolBufferException {

        final String database = entry.getHeader().getSchemaName(); // => index
        final String table = entry.getHeader().getTableName();// => type
        final CanalEntry.RowChange change = CanalEntry.RowChange.parseFrom(entry.getStoreValue());
        final List<CanalEntry.RowData> rowDataList = change.getRowDatasList();

        CanalEntry.EventType eventType = entry.getHeader().getEventType();
        final int esEventType = esAdapter.getEsEventType(eventType);


        EsRowDataArrayList esRowDataList = TotoroObjectPool.esRowDataArrayList();

        for (CanalEntry.RowData rowData : rowDataList) {
            List<CanalEntry.Column> columnList = esAdapter.getColumnList(esEventType, rowData);
            ElasticsearchMetadata.EsRowData esRowData = TotoroObjectPool.esRowData();
            EsColumnHashMap columnMap = TotoroObjectPool.esColumnHashMap();
            columnList.forEach(column -> columnMap.put(column.getName(), column.getValue()));
            esRowData.setRowData(columnMap);
            esRowData.setIdColumn(esAdapter.getEsIdColumn(database, table));//获取es对应的id Column
            esRowDataList.add(esRowData);
        }

        ElasticsearchMetadata.EsEntry esEntry = TotoroObjectPool.esEntry();

        esEntry.setIndex(database)
                .setType(table)
                .setEsRowDatas(esRowDataList)
                .setEventType(esEventType);

        return esEntry;
    }
 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
@Override
public int processFullPullerMessage(Map<String, List<IGenericMessage>> map, IGenericMessage obj) throws IOException {
    MysqlGenericMessage message = (MysqlGenericMessage) obj;
    CanalEntry.Entry entry = message.getEntry();

    CanalEntry.EventType eventType = entry.getHeader().getEventType();
    if(eventType != CanalEntry.EventType.INSERT)  {
        //skip it.
        logger.info ("Skipped a FULL_PULL_REQUESTS message which is not INSERT Type! :" + eventType.toString());
        return -1;
    }

    CanalEntry.RowChange rowChange = CanalEntry.RowChange.parseFrom(entry.getStoreValue());
    List<CanalEntry.RowData> dataList = rowChange.getRowDatasList();
    if (dataList.size() != 1) {
        throw new RuntimeException(String.format("解压FULL_PULL_REQUESTS 发现 %d 条bach数据，应该只有一条", dataList.size()));
    }

    //为了向下兼容，使用PULL_REMARK 保存dsName
    String dsName = null;
    String schema = null;
    String table = null;
    List<CanalEntry.Column> columns = dataList.get(0).getAfterColumnsList();
    for (CanalEntry.Column column : columns) {
        if (column.getName().equalsIgnoreCase("PULL_REMARK")) {
            dsName = column.getValue();
        } else if (column.getName().equalsIgnoreCase("SCHEMA_NAME")) {
            schema = column.getValue();
        } else if (column.getName().equalsIgnoreCase("TABLE_NAME")) {
            table = column.getValue();
        }
    }

    if (dsName == null || schema == null || table == null)  {
        throw new RuntimeException("解压FULL_PULL_REQUESTS 发现 dsName 或 schema 或 table为空.");
    }

    if (!dsName.equalsIgnoreCase(dsInfo.getDbSourceName())) {
        logger.info("Skipped other datasource FULL_PULL_REQUESTS! : {}.{}.{}" , dsName, schema, table);
        return -1;
    }

    logger.info(String.format("Get FULL_PULL_REQUESTS message : %s.%s.%s", dsName, schema, table));

    //单独发送一条 拉全量的消息
    List<IGenericMessage> subList = new ArrayList<>();
    subList.add(message);
    map.put(schema, subList);
    return 0;
}
 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
@Override
public List<CanalEntry.Column> getColumnList(int esEventType, CanalEntry.RowData rowData) {

    List<CanalEntry.Column> columnList;
    if (esEventType == ElasticsearchMetadata.DELETE) {
        columnList = rowData.getBeforeColumnsList();
    } else {
        columnList = rowData.getAfterColumnsList();
    }

    return columnList;

}
 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
@Override
public int processHeartBeatMessage(Map<String, List<IGenericMessage>> map, IGenericMessage obj) throws IOException {
    MysqlGenericMessage message = (MysqlGenericMessage) obj;
    CanalEntry.Entry entry = message.getEntry();

    CanalEntry.EventType eventType = entry.getHeader().getEventType();
    if(eventType != CanalEntry.EventType.INSERT)  {
        //skip it.
        logger.info ("Skipped a DB_HEARTBEAT_MONITOR message which is not INSERT Type! :" + eventType.toString());
        return -1;
    }

    CanalEntry.RowChange rowChange = CanalEntry.RowChange.parseFrom(entry.getStoreValue());
    List<CanalEntry.RowData> dataList = rowChange.getRowDatasList();
    if (dataList.size() != 1) {
        throw new RuntimeException(String.format("DB_HEARTBEAT_MONITOR 发现 %d 条bach数据，应该只有一条", dataList.size()));
    }

    String dsName = null;
    String schemaName = null;
    String tableName = null;
    String packetJson = null;
    List<CanalEntry.Column> columns = dataList.get(0).getAfterColumnsList();
    for (CanalEntry.Column column : columns) {
        if (column.getName().equalsIgnoreCase("DS_NAME")) {
            dsName = column.getValue();
        } else if (column.getName().equalsIgnoreCase("SCHEMA_NAME")) {
            schemaName = column.getValue();
        } else if (column.getName().equalsIgnoreCase("TABLE_NAME")) {
            tableName = column.getValue();
        } else if (column.getName().equalsIgnoreCase("PACKET"))
            packetJson = column.getValue();
    }

    if (dsName == null || schemaName == null || tableName == null || packetJson == null)  {
        throw new RuntimeException("DB_HEARTBEAT_MONITOR 发现 dsName 或 schema 或 table, 或 packetJson 为空.");
    }

    if (!dsName.equalsIgnoreCase(dsInfo.getDbSourceName())) {
        logger.info("Skipped other datasource HeartBeat! : {}.{}.{}" , dsName, schemaName, tableName);
        return -1;
    }

    //logger.info(String.format("Get DB_HEARTBEAT_MONITOR message : %s.%s", schemaName, tableName));

    if (packetJson.indexOf("checkpoint") >= 0) {

        HeartBeatPacket packet = HeartBeatPacket.parse(packetJson);
        statMeter(schemaName, tableName, packet.getTime(), packet.getTxtime());
    }

    List<IGenericMessage> subList = map.get(schemaName);
    if (subList != null) {
        subList.add(message);
    } else  {
        subList = new ArrayList<>();
        subList.add(message);
        map.put(schemaName, subList);
    }
    return 0;
}
 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
List<CanalEntry.Column> getColumnList(int esEventType, CanalEntry.RowData rowData); 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
public void onInsert(CanalEntry.RowData rowData); 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
public void onDelete(CanalEntry.RowData rowData); 

import com.alibaba.otter.canal.protocol.CanalEntry; //导入方法依赖的package包/类
public void onUpdate(CanalEntry.RowData rowData);