mirror of
https://github.com/googleapis/genai-toolbox.git
synced 2026-02-18 02:51:58 -05:00
107 lines
2.9 KiB
Go
107 lines
2.9 KiB
Go
// Copyright 2024 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tools
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import (
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"context"
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"fmt"
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"strings"
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"github.com/googleapis/genai-toolbox/internal/sources"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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const PostgresSQLGenericKind string = "postgres-generic"
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// validate interface
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var _ Config = PostgresGenericConfig{}
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type PostgresGenericConfig struct {
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Name string `yaml:"name"`
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Kind string `yaml:"kind"`
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Source string `yaml:"source"`
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Description string `yaml:"description"`
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Statement string `yaml:"statement"`
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Parameters Parameters `yaml:"parameters"`
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}
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func (cfg PostgresGenericConfig) toolKind() string {
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return PostgresSQLGenericKind
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}
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func (cfg PostgresGenericConfig) Initialize(srcs map[string]sources.Source) (Tool, error) {
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// verify source exists
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rawS, ok := srcs[cfg.Source]
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if !ok {
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return nil, fmt.Errorf("no source named %q configured", cfg.Source)
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}
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// verify the source is the right kind
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s, ok := rawS.(sources.PostgresSource)
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if !ok {
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return nil, fmt.Errorf("sources for %q tools must be of kind %q", PostgresSQLGenericKind, sources.PostgresKind)
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}
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// finish tool setup
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t := PostgresGenericTool{
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Name: cfg.Name,
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Kind: PostgresSQLGenericKind,
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Pool: s.Pool,
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Statement: cfg.Statement,
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Parameters: cfg.Parameters,
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manifest: ToolManifest{cfg.Description, generateManifests(cfg.Parameters)},
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}
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return t, nil
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}
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// validate interface
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var _ Tool = PostgresGenericTool{}
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type PostgresGenericTool struct {
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Name string `yaml:"name"`
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Kind string `yaml:"kind"`
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Pool *pgxpool.Pool
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Statement string
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Parameters Parameters `yaml:"parameters"`
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manifest ToolManifest
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}
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func (t PostgresGenericTool) Invoke(params []any) (string, error) {
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fmt.Printf("Invoked tool %s\n", t.Name)
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results, err := t.Pool.Query(context.Background(), t.Statement, params...)
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if err != nil {
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return "", fmt.Errorf("unable to execute query: %w", err)
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}
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var out strings.Builder
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for results.Next() {
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v, err := results.Values()
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if err != nil {
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return "", fmt.Errorf("unable to parse row: %w", err)
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}
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out.WriteString(fmt.Sprintf("%s", v))
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}
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return fmt.Sprintf("Stub tool call for %q! Parameters parsed: %q \n Output: %s", t.Name, params, out.String()), nil
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}
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func (t PostgresGenericTool) ParseParams(data map[string]any) ([]any, error) {
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return ParseParams(t.Parameters, data)
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}
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func (t PostgresGenericTool) Manifest() ToolManifest {
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return t.manifest
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}
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