com.huaweicloud.dws.client.op.Write Maven / Gradle / Ivy

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package com.huaweicloud.dws.client.op;

import com.huaweicloud.dws.client.collector.ActionCollector;
import com.huaweicloud.dws.client.exception.DwsClientException;
import com.huaweicloud.dws.client.exception.InvalidException;
import com.huaweicloud.dws.client.model.ConflictStrategy;
import com.huaweicloud.dws.client.model.OperationType;
import com.huaweicloud.dws.client.model.TableSchema;
import com.huaweicloud.dws.client.model.WriteMode;
import com.huaweicloud.dws.client.util.AssertUtil;

/**
 * @ProjectName: dws-connector
 * @ClassName: Upsert
 * @Description:
 * @Date: 2023/1/14 20:03
 * @Version: 1.0
 */
public class Write extends Operate {
    public Write(TableSchema schema, ActionCollector collector) {
        super(schema, collector, OperationType.WRITE);
    }

    /**
     * 有主键 && 替换模式下，设置用户未设置的字段为null, 便于后续流程执行
     */
    protected void fillRecord() {
        TableSchema tableSchema = record.getTableSchema();
        if (collector.getConfig().getTableConfig(tableSchema.getTableName()).getConflictStrategy() == ConflictStrategy.INSERT_OR_REPLACE
                && !record.getTableSchema().getPrimaryKeys().isEmpty()) {
            for (String column : record.getTableSchema().getColumnNames()) {
                if (record.isSet(column)) {
                    continue;
                }
                record.setValue(column, null, false);
            }
        }
    }

    protected void checkRecord() {
        // update模式下必须主键全填充
        TableSchema tableSchema = record.getTableSchema();
        WriteMode writeMode = collector.getConfig().getTableConfig(tableSchema.getTableName()).getWriteMode();
        if (WriteMode.updateWrites().contains(writeMode)) {
            // update 需要检查主键是否全覆盖
            for (String keyName : record.getTableSchema().getPrimaryKeyNames()) {
                AssertUtil.isTrue(record.isSet(keyName), new InvalidException("update must set primary key " + keyName));
            }
        }
    }

    @Override
    public void commit() throws DwsClientException {
        checkRecord();
        fillRecord();
        super.commit();
    }

    /**
     * 同步提交
     */
    @Override
    public void syncCommit() throws DwsClientException {
        checkRecord();
        fillRecord();
        super.syncCommit();
    }
}