Examples with ESMapping com.alibaba.otter.canal.client.adapter.es.core.config.ESSyncConfig.ESMapping used on opensource projects

Example 16 with ESMapping

use of com.alibaba.otter.canal.client.adapter.es.core.config.ESSyncConfig.ESMapping in project canal by alibaba.

the class ES6xTemplate method updateByQuery.

@Override
public void updateByQuery(ESSyncConfig config, Map<String, Object> paramsTmp, Map<String, Object> esFieldData) {
    if (paramsTmp.isEmpty()) {
        return;
    }
    ESMapping mapping = config.getEsMapping();
    BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery();
    paramsTmp.forEach((fieldName, value) -> queryBuilder.must(QueryBuilders.termsQuery(fieldName, value)));
    // 查询sql批量更新
    DataSource ds = DatasourceConfig.DATA_SOURCES.get(config.getDataSourceKey());
    StringBuilder sql = new StringBuilder("SELECT * FROM (" + mapping.getSql() + ") _v WHERE ");
    List<Object> values = new ArrayList<>();
    paramsTmp.forEach((fieldName, value) -> {
        sql.append("_v.").append(fieldName).append("=? AND ");
        values.add(value);
    });
    // TODO 直接外部包裹sql会导致全表扫描性能低, 待优化拼接内部where条件
    int len = sql.length();
    sql.delete(len - 4, len);
    Integer syncCount = (Integer) Util.sqlRS(ds, sql.toString(), values, rs -> {
        int count = 0;
        try {
            while (rs.next()) {
                Object idVal = getIdValFromRS(mapping, rs);
                append4Update(mapping, idVal, esFieldData);
                commitBulk();
                count++;
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return count;
    });
    if (logger.isTraceEnabled()) {
        logger.trace("Update ES by query affected {} records", syncCount);
    }
}