| // 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 command |
| |
| import ( |
| "context" |
| |
| "github.com/mongodb/mongo-go-driver/bson" |
| "github.com/mongodb/mongo-go-driver/mongo/writeconcern" |
| "github.com/mongodb/mongo-go-driver/x/bsonx" |
| "github.com/mongodb/mongo-go-driver/x/mongo/driver/session" |
| "github.com/mongodb/mongo-go-driver/x/network/description" |
| "github.com/mongodb/mongo-go-driver/x/network/wiremessage" |
| ) |
| |
| // DropIndexes represents the dropIndexes command. |
| // |
| // The dropIndexes command drops indexes for a namespace. |
| type DropIndexes struct { |
| NS Namespace |
| Index string |
| Opts []bsonx.Elem |
| WriteConcern *writeconcern.WriteConcern |
| Clock *session.ClusterClock |
| Session *session.Client |
| |
| result bson.Raw |
| err error |
| } |
| |
| // Encode will encode this command into a wire message for the given server description. |
| func (di *DropIndexes) Encode(desc description.SelectedServer) (wiremessage.WireMessage, error) { |
| cmd, err := di.encode(desc) |
| if err != nil { |
| return nil, err |
| } |
| |
| return cmd.Encode(desc) |
| } |
| |
| func (di *DropIndexes) encode(desc description.SelectedServer) (*Write, error) { |
| cmd := bsonx.Doc{ |
| {"dropIndexes", bsonx.String(di.NS.Collection)}, |
| {"index", bsonx.String(di.Index)}, |
| } |
| cmd = append(cmd, di.Opts...) |
| |
| write := &Write{ |
| Clock: di.Clock, |
| DB: di.NS.DB, |
| Command: cmd, |
| Session: di.Session, |
| } |
| if desc.WireVersion != nil && desc.WireVersion.Max >= 5 { |
| write.WriteConcern = di.WriteConcern |
| } |
| return write, nil |
| } |
| |
| // Decode will decode the wire message using the provided server description. Errors during decoding |
| // are deferred until either the Result or Err methods are called. |
| func (di *DropIndexes) Decode(desc description.SelectedServer, wm wiremessage.WireMessage) *DropIndexes { |
| rdr, err := (&Write{}).Decode(desc, wm).Result() |
| if err != nil { |
| di.err = err |
| return di |
| } |
| |
| return di.decode(desc, rdr) |
| } |
| |
| func (di *DropIndexes) decode(desc description.SelectedServer, rdr bson.Raw) *DropIndexes { |
| di.result = rdr |
| return di |
| } |
| |
| // Result returns the result of a decoded wire message and server description. |
| func (di *DropIndexes) Result() (bson.Raw, error) { |
| if di.err != nil { |
| return nil, di.err |
| } |
| |
| return di.result, nil |
| } |
| |
| // Err returns the error set on this command. |
| func (di *DropIndexes) Err() error { return di.err } |
| |
| // RoundTrip handles the execution of this command using the provided wiremessage.ReadWriter. |
| func (di *DropIndexes) RoundTrip(ctx context.Context, desc description.SelectedServer, rw wiremessage.ReadWriter) (bson.Raw, error) { |
| cmd, err := di.encode(desc) |
| if err != nil { |
| return nil, err |
| } |
| |
| di.result, err = cmd.RoundTrip(ctx, desc, rw) |
| if err != nil { |
| return nil, err |
| } |
| |
| return di.Result() |
| } |