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bd07c86b60
Summary: Used addlicense to generate this: addlicense -c "Facebook Inc" -f license_header . example was taken from: https://github.com/facebook/litho/blob/master/lib/soloader/BUCK Reviewed By: alexsn Differential Revision: D17070152 fbshipit-source-id: e7b91398d7f6181727be3400c1872ad5f28e38ed
59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
// Copyright 2019-present Facebook Inc. All rights reserved.
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// This source code is licensed under the Apache 2.0 license found
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// in the LICENSE file in the root directory of this source tree.
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package gremlin
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import (
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"context"
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"fmt"
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"github.com/facebookincubator/ent/dialect"
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"github.com/facebookincubator/ent/dialect/gremlin/graph/dsl"
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)
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// Driver is a dialect.Driver implementation for TinkerPop gremlin.
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type Driver struct {
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*Client
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}
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// NewDriver returns a new dialect.Driver implementation for gremlin.
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func NewDriver(c *Client) *Driver {
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c.Transport = ExpandBindings(c.Transport)
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return &Driver{c}
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}
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// Dialect implements the dialect.Dialect method.
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func (Driver) Dialect() string { return dialect.Neptune }
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// Exec implements the dialect.Exec method.
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func (c *Driver) Exec(ctx context.Context, query string, args, v interface{}) error {
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vr, ok := v.(*Response)
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if !ok {
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return fmt.Errorf("dialect/gremlin: invalid type %T. expect *gremlin.Response", v)
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}
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bindings, ok := args.(dsl.Bindings)
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if !ok {
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return fmt.Errorf("dialect/gremlin: invalid type %T. expect map[string]interface{} for bindings", args)
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}
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res, err := c.Do(ctx, NewEvalRequest(query, WithBindings(bindings)))
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if err != nil {
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return err
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}
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*vr = *res
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return nil
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}
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// Query implements the dialect.Query method.
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func (c *Driver) Query(ctx context.Context, query string, args, v interface{}) error {
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return c.Exec(ctx, query, args, v)
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}
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// Close is a nop close call. It should close the connection in case of WS client.
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func (Driver) Close() error { return nil }
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// Tx returns a nop transaction.
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func (c *Driver) Tx(context.Context) (dialect.Tx, error) { return dialect.NopTx(c), nil }
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var _ dialect.Driver = (*Driver)(nil)
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