Beispiel #1
0
func (self *ClusterConfiguration) GetShards(querySpec *parser.QuerySpec) []*ShardData {
	self.shardsByIdLock.RLock()
	defer self.shardsByIdLock.RUnlock()

	shouldQueryShortTerm, shouldQueryLongTerm := querySpec.ShouldQueryShortTermAndLongTerm()

	if shouldQueryLongTerm && shouldQueryShortTerm {
		shards := make([]*ShardData, 0)
		shards = append(shards, self.getShardRange(querySpec, self.shortTermShards)...)
		shards = append(shards, self.getShardRange(querySpec, self.longTermShards)...)
		if querySpec.IsAscending() {
			SortShardsByTimeAscending(shards)
		} else {
			SortShardsByTimeDescending(shards)
		}
		return shards
	}

	var shards []*ShardData
	if shouldQueryLongTerm {
		shards = self.getShardRange(querySpec, self.longTermShards)
	} else {
		shards = self.getShardRange(querySpec, self.shortTermShards)
	}
	if querySpec.IsAscending() {
		newShards := append([]*ShardData{}, shards...)
		SortShardsByTimeAscending(newShards)
		return newShards
	}
	return shards
}
func (self *ClusterConfiguration) GetShards(querySpec *parser.QuerySpec) []*ShardData {
	self.shardsByIdLock.RLock()
	defer self.shardsByIdLock.RUnlock()

	if querySpec.IsDropSeriesQuery() {
		seriesName := querySpec.Query().DropSeriesQuery.GetTableName()
		if seriesName[0] < FIRST_LOWER_CASE_CHARACTER {
			return self.longTermShards
		}
		return self.shortTermShards
	}

	shouldQueryShortTerm, shouldQueryLongTerm := querySpec.ShouldQueryShortTermAndLongTerm()

	if shouldQueryLongTerm && shouldQueryShortTerm {
		shards := make([]*ShardData, 0)
		shards = append(shards, self.getShardRange(querySpec, self.shortTermShards)...)
		shards = append(shards, self.getShardRange(querySpec, self.longTermShards)...)
		if querySpec.IsAscending() {
			SortShardsByTimeAscending(shards)
		} else {
			SortShardsByTimeDescending(shards)
		}
		return shards
	}

	var shards []*ShardData
	if shouldQueryLongTerm {
		shards = self.getShardRange(querySpec, self.longTermShards)
	} else {
		shards = self.getShardRange(querySpec, self.shortTermShards)
	}
	if querySpec.IsAscending() {
		newShards := append([]*ShardData{}, shards...)
		SortShardsByTimeAscending(newShards)
		return newShards
	}
	return shards
}