| // Copyright (C) MongoDB, Inc. 2017-present. |
| // |
| // 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 |
| |
| package driver |
| |
| import ( |
| "context" |
| |
| "github.com/mongodb/mongo-go-driver/bson" |
| "github.com/mongodb/mongo-go-driver/x/mongo/driver/session" |
| "github.com/mongodb/mongo-go-driver/x/mongo/driver/topology" |
| "github.com/mongodb/mongo-go-driver/x/mongo/driver/uuid" |
| "github.com/mongodb/mongo-go-driver/x/network/command" |
| "github.com/mongodb/mongo-go-driver/x/network/description" |
| ) |
| |
| // DropCollection handles the full cycle dispatch and execution of a dropCollection |
| // command against the provided topology. |
| func DropCollection( |
| ctx context.Context, |
| cmd command.DropCollection, |
| topo *topology.Topology, |
| selector description.ServerSelector, |
| clientID uuid.UUID, |
| pool *session.Pool, |
| ) (bson.Raw, error) { |
| |
| ss, err := topo.SelectServer(ctx, selector) |
| if err != nil { |
| return nil, err |
| } |
| |
| conn, err := ss.Connection(ctx) |
| if err != nil { |
| return nil, err |
| } |
| defer conn.Close() |
| |
| // If no explicit session and deployment supports sessions, start implicit session. |
| if cmd.Session == nil && topo.SupportsSessions() { |
| cmd.Session, err = session.NewClientSession(pool, clientID, session.Implicit) |
| if err != nil { |
| return nil, err |
| } |
| defer cmd.Session.EndSession() |
| } |
| |
| return cmd.RoundTrip(ctx, ss.Description(), conn) |
| } |