alloydbgetinstance.go•5.13 kB
// Copyright 2025 Google LLC
//
// 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
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package alloydbgetinstance
import (
"context"
"fmt"
yaml "github.com/goccy/go-yaml"
"github.com/googleapis/genai-toolbox/internal/sources"
alloydbadmin "github.com/googleapis/genai-toolbox/internal/sources/alloydbadmin"
"github.com/googleapis/genai-toolbox/internal/tools"
)
const kind string = "alloydb-get-instance"
func init() {
if !tools.Register(kind, newConfig) {
panic(fmt.Sprintf("tool kind %q already registered", kind))
}
}
func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (tools.ToolConfig, error) {
actual := Config{Name: name}
if err := decoder.DecodeContext(ctx, &actual); err != nil {
return nil, err
}
return actual, nil
}
// Configuration for the get-instance tool.
type Config struct {
Name string `yaml:"name" validate:"required"`
Kind string `yaml:"kind" validate:"required"`
Source string `yaml:"source" validate:"required"`
Description string `yaml:"description"`
AuthRequired []string `yaml:"authRequired"`
BaseURL string `yaml:"baseURL"`
}
// validate interface
var _ tools.ToolConfig = Config{}
// ToolConfigKind returns the kind of the tool.
func (cfg Config) ToolConfigKind() string {
return kind
}
// Initialize initializes the tool from the configuration.
func (cfg Config) Initialize(srcs map[string]sources.Source) (tools.Tool, error) {
rawS, ok := srcs[cfg.Source]
if !ok {
return nil, fmt.Errorf("source %q not found", cfg.Source)
}
s, ok := rawS.(*alloydbadmin.Source)
if !ok {
return nil, fmt.Errorf("invalid source for %q tool: source kind must be `%s`", kind, alloydbadmin.SourceKind)
}
allParameters := tools.Parameters{
tools.NewStringParameter("project", "The GCP project ID."),
tools.NewStringParameter("location", "The location of the instance (e.g., 'us-central1')."),
tools.NewStringParameter("cluster", "The ID of the cluster."),
tools.NewStringParameter("instance", "The ID of the instance."),
}
paramManifest := allParameters.Manifest()
description := cfg.Description
if description == "" {
description = "Retrieves details about a specific AlloyDB instance."
}
mcpManifest := tools.GetMcpManifest(cfg.Name, description, cfg.AuthRequired, allParameters)
return Tool{
Name: cfg.Name,
Kind: kind,
Source: s,
AllParams: allParameters,
manifest: tools.Manifest{Description: description, Parameters: paramManifest, AuthRequired: cfg.AuthRequired},
mcpManifest: mcpManifest,
}, nil
}
// Tool represents the get-instance tool.
type Tool struct {
Name string `yaml:"name"`
Kind string `yaml:"kind"`
Source *alloydbadmin.Source
AllParams tools.Parameters
manifest tools.Manifest
mcpManifest tools.McpManifest
}
// Invoke executes the tool's logic.
func (t Tool) Invoke(ctx context.Context, params tools.ParamValues, accessToken tools.AccessToken) (any, error) {
paramsMap := params.AsMap()
project, ok := paramsMap["project"].(string)
if !ok {
return nil, fmt.Errorf("invalid or missing 'project' parameter; expected a string")
}
location, ok := paramsMap["location"].(string)
if !ok {
return nil, fmt.Errorf("invalid 'location' parameter; expected a string")
}
cluster, ok := paramsMap["cluster"].(string)
if !ok {
return nil, fmt.Errorf("invalid 'cluster' parameter; expected a string")
}
instance, ok := paramsMap["instance"].(string)
if !ok {
return nil, fmt.Errorf("invalid 'instance' parameter; expected a string")
}
service, err := t.Source.GetService(ctx, string(accessToken))
if err != nil {
return nil, err
}
urlString := fmt.Sprintf("projects/%s/locations/%s/clusters/%s/instances/%s", project, location, cluster, instance)
resp, err := service.Projects.Locations.Clusters.Instances.Get(urlString).Do()
if err != nil {
return nil, fmt.Errorf("error getting AlloyDB instance: %w", err)
}
return resp, nil
}
// ParseParams parses the parameters for the tool.
func (t Tool) ParseParams(data map[string]any, claims map[string]map[string]any) (tools.ParamValues, error) {
return tools.ParseParams(t.AllParams, data, claims)
}
// Manifest returns the tool's manifest.
func (t Tool) Manifest() tools.Manifest {
return t.manifest
}
// McpManifest returns the tool's MCP manifest.
func (t Tool) McpManifest() tools.McpManifest {
return t.mcpManifest
}
// Authorized checks if the tool is authorized.
func (t Tool) Authorized(verifiedAuthServices []string) bool {
return true
}
func (t Tool) RequiresClientAuthorization() bool {
return t.Source.UseClientAuthorization()
}