Example usage for org.springframework.data.mongodb.core.aggregation Fields fields

Introduction

In this page you can find the example usage for org.springframework.data.mongodb.core.aggregation Fields fields.

Prototype

List fields

To view the source code for org.springframework.data.mongodb.core.aggregation Fields fields.

Click Source Link

Usage

From source file:com.epam.ta.reportportal.database.dao.TestItemRepositoryCustomImpl.java

@SuppressWarnings({ "rawtypes", "unchecked" })
@Override//from   w  ww.  j  a  va2 s.co m
public Map<String, String> getMostFailedTestCases(List<Launch> launches, String criteria) {
    Map<String, String> output = new HashMap<>();
    List<String> launchIds = launches.stream().map(Launch::getId).collect(toList());

    GroupOperation operationTotal = new GroupOperation(Fields.fields("$name")).count().as("count");
    Aggregation aggregationTotal = newAggregation(match(where(LAUNCH_REFERENCE).in(launchIds)),
            match(where(HAS_CHILD).is(false)), operationTotal);
    AggregationResults<Map> resultTotal = mongoTemplate.aggregate(aggregationTotal, TestItem.class, Map.class);
    Map<String, String> values = resultTotal.getMappedResults().stream()
            .collect(toMap(key -> key.get("_id").toString(), value -> value.get("count").toString()));

    GroupOperation operation = new GroupOperation(Fields.fields("$name")).count().as("count").last("$startTime")
            .as("last");
    Aggregation aggregation = newAggregation(match(where(LAUNCH_REFERENCE).in(launchIds)),
            match(where(criteria).is(1)), match(where(HAS_CHILD).is(false)), operation);

    AggregationResults<Map> result = mongoTemplate.aggregate(aggregation, TestItem.class, Map.class);
    for (Map<String, ?> entry : result.getMappedResults()) {
        String itemName = String.valueOf(entry.get("_id"));
        String count = String.valueOf(entry.get("count"));
        Date date = (Date) entry.get("last");
        String total = values.get(itemName);
        // FIXME Update dirty # separator with common case
        // And update after {@link MostFailedTestCasesFilterStrategy}
        output.put(itemName, count + "#" + date.getTime() + "#" + total);
    }
    return output;
}

---