原MongoDB语句 :
db.batch_operation_log.aggregate([
{
$project: {
"queryIndex": 1,
"status": 1,
AType: {
$cond: {
if : {
$eq: ["IN_PROGRESS", "$status"]
},
then: 1,
else : 0
}
},
BType: {
$cond: {
if : {
$eq: ["FAIL", "$status"]
},
then: 1,
else : 0
}
}
}
},
{
$group: {
_id: {
"status": "$status",
"queryIndex": "$queryIndex"
},
queryIndex: {
"$first": "$queryIndex"
},
IN_PROGRESS: {
$sum: "$AType"
},
FAIL: {
$sum: "$BType"
}
}
},
{
$group: {
_id: {
"queryIndex": "$queryIndex"
},
queryIndex: {
"$first": "$queryIndex"
},
inprogress: {
$sum: "$IN_PROGRESS"
},
fail: {
$sum: "$FAIL"
}
}
}
])
SpringBoot API 转换 :
//通过任务id和阶段id进行分组 ,获取成功数和失败数
List operations = new ArrayList<>();
//匹配
//operations.add(Aggregation.match(Criteria.
//where("queryIndex").in(queryIndex)));
//列投影
operations.add(Aggregation.project("queryIndex", "status")
.andexpression("{$cond: { if : { $eq: {'IN_PROGRESS', '$status'}},then:1,else:0}}").as("AType")
.andexpression("{$cond: { if : { $eq: {'FAIL', '$status'}},then:1,else:0}}").as("BType"));
//分组
operations.add(Aggregation.group("status", "queryIndex")
.sum("AType").as("IN_PROGRESS")
.sum("BType").as("FAIL")
.first("queryIndex").as("queryIndex"));
//继续分组
operations.add(Aggregation.group("queryIndex")
.sum("IN_PROGRESS").as("inProgress")
.sum("FAIL").as("fail")
.first("queryIndex").as("queryIndex"));
AggregationResults results = mongoTemplate.aggregate(Aggregation.newAggregation(
operations.toArray(new AggregationOperation[0])
), "batch_operation_log", QueryCountDO.class);



