Example usage for com.mongodb.client.model Accumulators min

Introduction

In this page you can find the example usage for com.mongodb.client.model Accumulators min.

Prototype

public static <TExpression> BsonField min(final String fieldName, final TExpression expression) 

Source Link

Document

Gets a field name for a $group operation representing the minimum of the values of the given expression when applied to all members of the group.

Usage

From source file:com.epam.dlab.backendapi.dao.azure.AzureBillingDAO.java

License:Apache License

private Bson groupCriteria() {
    return Aggregates.group(
            getGroupingFields(MongoKeyWords.DLAB_USER, MongoKeyWords.DLAB_ID, MongoKeyWords.RESOURCE_TYPE,
                    MongoKeyWords.METER_CATEGORY, MongoKeyWords.CURRENCY_CODE),
            Accumulators.sum(MongoKeyWords.COST, MongoKeyWords.prepend$(MongoKeyWords.COST)),
            Accumulators.min(MongoKeyWords.USAGE_FROM, MongoKeyWords.prepend$(MongoKeyWords.USAGE_DAY)),
            Accumulators.max(MongoKeyWords.USAGE_TO, MongoKeyWords.prepend$(MongoKeyWords.USAGE_DAY)));
}

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From source file:com.epam.dlab.billing.azure.AzureBillingDetailsService.java

License:Apache License

public void updateBillingDetails(String user) {
    log.debug("Updating billing details for user {}", user);

    try {/* w w  w.  j a v  a2  s.  c  om*/
        AggregateIterable<Document> aggregateIterable = mongoDbBillingClient.getDatabase()
                .getCollection(MongoKeyWords.BILLING_DETAILS)
                .aggregate(Lists.newArrayList(
                        Aggregates.match(Filters.and(Filters.eq(MongoKeyWords.DLAB_USER, user),
                                Filters.in(MongoKeyWords.RESOURCE_TYPE, DlabResourceType.EXPLORATORY.toString(),
                                        DlabResourceType.COMPUTATIONAL.toString(),
                                        DlabResourceType.VOLUME.toString()))),

                        Aggregates.group(
                                getGroupingFields(MongoKeyWords.DLAB_ID, MongoKeyWords.DLAB_USER,
                                        MongoKeyWords.EXPLORATORY_ID, MongoKeyWords.RESOURCE_TYPE,
                                        MongoKeyWords.RESOURCE_NAME, MongoKeyWords.COMPUTATIONAL_ID,
                                        MongoKeyWords.METER_CATEGORY),
                                Accumulators.sum(MongoKeyWords.COST,
                                        MongoKeyWords.prepend$(MongoKeyWords.COST)),
                                Accumulators.min(MongoKeyWords.USAGE_FROM,
                                        MongoKeyWords.prepend$(MongoKeyWords.USAGE_DAY)),
                                Accumulators.max(MongoKeyWords.USAGE_TO,
                                        MongoKeyWords.prepend$(MongoKeyWords.USAGE_DAY))),

                        Aggregates.sort(Sorts.ascending(MongoKeyWords.prependId(MongoKeyWords.RESOURCE_NAME),
                                MongoKeyWords.prependId(MongoKeyWords.METER_CATEGORY)))));

        updateBillingDetails(user, mapToDetails(aggregateIterable));
    } catch (RuntimeException e) {
        log.error("Updating billing details for user {} is failed", user, e);
    }
}

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