com.dangdang.ddframe.rdb.transaction.soft.bed.BestEffortsDeliveryJob Maven / Gradle / Ivy
/*
* Copyright 1999-2015 dangdang.com.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.dangdang.ddframe.rdb.transaction.soft.bed;
import com.dangdang.ddframe.job.api.JobExecutionMultipleShardingContext;
import com.dangdang.ddframe.job.plugin.job.type.dataflow.AbstractIndividualThroughputDataFlowElasticJob;
import com.dangdang.ddframe.rdb.transaction.soft.exception.TransactionCompensationException;
import com.dangdang.ddframe.rdb.transaction.soft.storage.TransactionLog;
import com.dangdang.ddframe.rdb.transaction.soft.storage.TransactionLogStorage;
import lombok.Setter;
import lombok.extern.slf4j.Slf4j;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
/**
* 最大努力送达型异步作业.
*
* @author zhangliang
* @author caohao
*/
@Slf4j
public class BestEffortsDeliveryJob extends AbstractIndividualThroughputDataFlowElasticJob {
@Setter
private BestEffortsDeliveryConfiguration bedConfig;
@Setter
private TransactionLogStorage transactionLogStorage;
@Override
public List fetchData(final JobExecutionMultipleShardingContext context) {
return transactionLogStorage.findEligibleTransactionLogs(context.getFetchDataCount(),
bedConfig.getJobConfig().getMaxDeliveryTryTimes(), bedConfig.getJobConfig().getMaxDeliveryTryDelayMillis());
}
@Override
public boolean processData(final JobExecutionMultipleShardingContext context, final TransactionLog data) {
try (
Connection conn = bedConfig.getTargetDataSource(data.getDataSource()).getConnection()) {
transactionLogStorage.processData(conn, data, bedConfig.getJobConfig().getMaxDeliveryTryTimes());
} catch (final SQLException | TransactionCompensationException ex) {
log.error(String.format("Async delivery times %s error, max try times is %s, exception is %s", data.getAsyncDeliveryTryTimes() + 1,
bedConfig.getJobConfig().getMaxDeliveryTryTimes(), ex.getMessage()));
return false;
}
return true;
}
@Override
public boolean isStreamingProcess() {
return false;
}
}