Current File : //home/waritko/go/src/cloud.google.com/go/dialogflow/apiv2/agents_client.go
// Copyright 2018 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
//
// https://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.
// AUTO-GENERATED CODE. DO NOT EDIT.
package dialogflow
import (
"math"
"time"
"cloud.google.com/go/internal/version"
"cloud.google.com/go/longrunning"
lroauto "cloud.google.com/go/longrunning/autogen"
structpbpb "github.com/golang/protobuf/ptypes/struct"
gax "github.com/googleapis/gax-go"
"golang.org/x/net/context"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
"google.golang.org/api/transport"
dialogflowpb "google.golang.org/genproto/googleapis/cloud/dialogflow/v2"
longrunningpb "google.golang.org/genproto/googleapis/longrunning"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
)
// AgentsCallOptions contains the retry settings for each method of AgentsClient.
type AgentsCallOptions struct {
GetAgent []gax.CallOption
SearchAgents []gax.CallOption
TrainAgent []gax.CallOption
ExportAgent []gax.CallOption
ImportAgent []gax.CallOption
RestoreAgent []gax.CallOption
}
func defaultAgentsClientOptions() []option.ClientOption {
return []option.ClientOption{
option.WithEndpoint("dialogflow.googleapis.com:443"),
option.WithScopes(DefaultAuthScopes()...),
}
}
func defaultAgentsCallOptions() *AgentsCallOptions {
retry := map[[2]string][]gax.CallOption{
{"default", "idempotent"}: {
gax.WithRetry(func() gax.Retryer {
return gax.OnCodes([]codes.Code{
codes.DeadlineExceeded,
codes.Unavailable,
}, gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60000 * time.Millisecond,
Multiplier: 1.3,
})
}),
},
}
return &AgentsCallOptions{
GetAgent: retry[[2]string{"default", "idempotent"}],
SearchAgents: retry[[2]string{"default", "idempotent"}],
TrainAgent: retry[[2]string{"default", "idempotent"}],
ExportAgent: retry[[2]string{"default", "idempotent"}],
ImportAgent: retry[[2]string{"default", "non_idempotent"}],
RestoreAgent: retry[[2]string{"default", "idempotent"}],
}
}
// AgentsClient is a client for interacting with Dialogflow API.
type AgentsClient struct {
// The connection to the service.
conn *grpc.ClientConn
// The gRPC API client.
agentsClient dialogflowpb.AgentsClient
// LROClient is used internally to handle longrunning operations.
// It is exposed so that its CallOptions can be modified if required.
// Users should not Close this client.
LROClient *lroauto.OperationsClient
// The call options for this service.
CallOptions *AgentsCallOptions
// The x-goog-* metadata to be sent with each request.
xGoogMetadata metadata.MD
}
// NewAgentsClient creates a new agents client.
//
// Agents are best described as Natural Language Understanding (NLU) modules
// that transform user requests into actionable data. You can include agents
// in your app, product, or service to determine user intent and respond to the
// user in a natural way.
//
// After you create an agent, you can add [Intents][google.cloud.dialogflow.v2.Intents], [Contexts][google.cloud.dialogflow.v2.Contexts],
// [Entity Types][google.cloud.dialogflow.v2.EntityTypes], [Webhooks][google.cloud.dialogflow.v2.WebhookRequest], and so on to
// manage the flow of a conversation and match user input to predefined intents
// and actions.
//
// You can create an agent using both Dialogflow Standard Edition and
// Dialogflow Enterprise Edition. For details, see
// Dialogflow Editions (at /dialogflow-enterprise/docs/editions).
//
// You can save your agent for backup or versioning by exporting the agent by
// using the [ExportAgent][google.cloud.dialogflow.v2.Agents.ExportAgent] method. You can import a saved
// agent by using the [ImportAgent][google.cloud.dialogflow.v2.Agents.ImportAgent] method.
//
// Dialogflow provides several
// prebuilt agents (at https://dialogflow.com/docs/prebuilt-agents) for common
// conversation scenarios such as determining a date and time, converting
// currency, and so on.
//
// For more information about agents, see the
// Dialogflow documentation (at https://dialogflow.com/docs/agents).
func NewAgentsClient(ctx context.Context, opts ...option.ClientOption) (*AgentsClient, error) {
conn, err := transport.DialGRPC(ctx, append(defaultAgentsClientOptions(), opts...)...)
if err != nil {
return nil, err
}
c := &AgentsClient{
conn: conn,
CallOptions: defaultAgentsCallOptions(),
agentsClient: dialogflowpb.NewAgentsClient(conn),
}
c.setGoogleClientInfo()
c.LROClient, err = lroauto.NewOperationsClient(ctx, option.WithGRPCConn(conn))
if err != nil {
// This error "should not happen", since we are just reusing old connection
// and never actually need to dial.
// If this does happen, we could leak conn. However, we cannot close conn:
// If the user invoked the function with option.WithGRPCConn,
// we would close a connection that's still in use.
// TODO(pongad): investigate error conditions.
return nil, err
}
return c, nil
}
// Connection returns the client's connection to the API service.
func (c *AgentsClient) Connection() *grpc.ClientConn {
return c.conn
}
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *AgentsClient) Close() error {
return c.conn.Close()
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *AgentsClient) setGoogleClientInfo(keyval ...string) {
kv := append([]string{"gl-go", version.Go()}, keyval...)
kv = append(kv, "gapic", version.Repo, "gax", gax.Version, "grpc", grpc.Version)
c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}
// GetAgent retrieves the specified agent.
func (c *AgentsClient) GetAgent(ctx context.Context, req *dialogflowpb.GetAgentRequest, opts ...gax.CallOption) (*dialogflowpb.Agent, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.GetAgent[0:len(c.CallOptions.GetAgent):len(c.CallOptions.GetAgent)], opts...)
var resp *dialogflowpb.Agent
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.agentsClient.GetAgent(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// SearchAgents returns the list of agents.
//
// Since there is at most one conversational agent per project, this method is
// useful primarily for listing all agents across projects the caller has
// access to. One can achieve that with a wildcard project collection id "-".
// Refer to List
// Sub-Collections (at https://cloud.google.com/apis/design/design_patterns#list_sub-collections).
func (c *AgentsClient) SearchAgents(ctx context.Context, req *dialogflowpb.SearchAgentsRequest, opts ...gax.CallOption) *AgentIterator {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.SearchAgents[0:len(c.CallOptions.SearchAgents):len(c.CallOptions.SearchAgents)], opts...)
it := &AgentIterator{}
it.InternalFetch = func(pageSize int, pageToken string) ([]*dialogflowpb.Agent, string, error) {
var resp *dialogflowpb.SearchAgentsResponse
req.PageToken = pageToken
if pageSize > math.MaxInt32 {
req.PageSize = math.MaxInt32
} else {
req.PageSize = int32(pageSize)
}
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.agentsClient.SearchAgents(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, "", err
}
return resp.Agents, resp.NextPageToken, nil
}
fetch := func(pageSize int, pageToken string) (string, error) {
items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
if err != nil {
return "", err
}
it.items = append(it.items, items...)
return nextPageToken, nil
}
it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
return it
}
// TrainAgent trains the specified agent.
//
// Operation <response: [google.protobuf.Empty][google.protobuf.Empty],
// metadata: [google.protobuf.Struct][google.protobuf.Struct]>
func (c *AgentsClient) TrainAgent(ctx context.Context, req *dialogflowpb.TrainAgentRequest, opts ...gax.CallOption) (*TrainAgentOperation, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.TrainAgent[0:len(c.CallOptions.TrainAgent):len(c.CallOptions.TrainAgent)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.agentsClient.TrainAgent(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &TrainAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// ExportAgent exports the specified agent to a ZIP file.
//
// Operation <response: [ExportAgentResponse][google.cloud.dialogflow.v2.ExportAgentResponse],
// metadata: [google.protobuf.Struct][google.protobuf.Struct]>
func (c *AgentsClient) ExportAgent(ctx context.Context, req *dialogflowpb.ExportAgentRequest, opts ...gax.CallOption) (*ExportAgentOperation, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.ExportAgent[0:len(c.CallOptions.ExportAgent):len(c.CallOptions.ExportAgent)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.agentsClient.ExportAgent(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &ExportAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// ImportAgent imports the specified agent from a ZIP file.
//
// Uploads new intents and entity types without deleting the existing ones.
// Intents and entity types with the same name are replaced with the new
// versions from ImportAgentRequest.
//
// Operation <response: [google.protobuf.Empty][google.protobuf.Empty],
// metadata: [google.protobuf.Struct][google.protobuf.Struct]>
func (c *AgentsClient) ImportAgent(ctx context.Context, req *dialogflowpb.ImportAgentRequest, opts ...gax.CallOption) (*ImportAgentOperation, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.ImportAgent[0:len(c.CallOptions.ImportAgent):len(c.CallOptions.ImportAgent)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.agentsClient.ImportAgent(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &ImportAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// RestoreAgent restores the specified agent from a ZIP file.
//
// Replaces the current agent version with a new one. All the intents and
// entity types in the older version are deleted.
//
// Operation <response: [google.protobuf.Empty][google.protobuf.Empty],
// metadata: [google.protobuf.Struct][google.protobuf.Struct]>
func (c *AgentsClient) RestoreAgent(ctx context.Context, req *dialogflowpb.RestoreAgentRequest, opts ...gax.CallOption) (*RestoreAgentOperation, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
opts = append(c.CallOptions.RestoreAgent[0:len(c.CallOptions.RestoreAgent):len(c.CallOptions.RestoreAgent)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.agentsClient.RestoreAgent(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &RestoreAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, resp),
}, nil
}
// AgentIterator manages a stream of *dialogflowpb.Agent.
type AgentIterator struct {
items []*dialogflowpb.Agent
pageInfo *iterator.PageInfo
nextFunc func() error
// InternalFetch is for use by the Google Cloud Libraries only.
// It is not part of the stable interface of this package.
//
// InternalFetch returns results from a single call to the underlying RPC.
// The number of results is no greater than pageSize.
// If there are no more results, nextPageToken is empty and err is nil.
InternalFetch func(pageSize int, pageToken string) (results []*dialogflowpb.Agent, nextPageToken string, err error)
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *AgentIterator) PageInfo() *iterator.PageInfo {
return it.pageInfo
}
// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *AgentIterator) Next() (*dialogflowpb.Agent, error) {
var item *dialogflowpb.Agent
if err := it.nextFunc(); err != nil {
return item, err
}
item = it.items[0]
it.items = it.items[1:]
return item, nil
}
func (it *AgentIterator) bufLen() int {
return len(it.items)
}
func (it *AgentIterator) takeBuf() interface{} {
b := it.items
it.items = nil
return b
}
// ExportAgentOperation manages a long-running operation from ExportAgent.
type ExportAgentOperation struct {
lro *longrunning.Operation
}
// ExportAgentOperation returns a new ExportAgentOperation from a given name.
// The name must be that of a previously created ExportAgentOperation, possibly from a different process.
func (c *AgentsClient) ExportAgentOperation(name string) *ExportAgentOperation {
return &ExportAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *ExportAgentOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*dialogflowpb.ExportAgentResponse, error) {
var resp dialogflowpb.ExportAgentResponse
if err := op.lro.WaitWithInterval(ctx, &resp, 5000*time.Millisecond, opts...); err != nil {
return nil, err
}
return &resp, nil
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *ExportAgentOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*dialogflowpb.ExportAgentResponse, error) {
var resp dialogflowpb.ExportAgentResponse
if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
return nil, err
}
if !op.Done() {
return nil, nil
}
return &resp, nil
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *ExportAgentOperation) Metadata() (*structpbpb.Struct, error) {
var meta structpbpb.Struct
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *ExportAgentOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *ExportAgentOperation) Name() string {
return op.lro.Name()
}
// ImportAgentOperation manages a long-running operation from ImportAgent.
type ImportAgentOperation struct {
lro *longrunning.Operation
}
// ImportAgentOperation returns a new ImportAgentOperation from a given name.
// The name must be that of a previously created ImportAgentOperation, possibly from a different process.
func (c *AgentsClient) ImportAgentOperation(name string) *ImportAgentOperation {
return &ImportAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning any error encountered.
//
// See documentation of Poll for error-handling information.
func (op *ImportAgentOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.WaitWithInterval(ctx, nil, 5000*time.Millisecond, opts...)
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully, op.Done will return true.
func (op *ImportAgentOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.Poll(ctx, nil, opts...)
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *ImportAgentOperation) Metadata() (*structpbpb.Struct, error) {
var meta structpbpb.Struct
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *ImportAgentOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *ImportAgentOperation) Name() string {
return op.lro.Name()
}
// RestoreAgentOperation manages a long-running operation from RestoreAgent.
type RestoreAgentOperation struct {
lro *longrunning.Operation
}
// RestoreAgentOperation returns a new RestoreAgentOperation from a given name.
// The name must be that of a previously created RestoreAgentOperation, possibly from a different process.
func (c *AgentsClient) RestoreAgentOperation(name string) *RestoreAgentOperation {
return &RestoreAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning any error encountered.
//
// See documentation of Poll for error-handling information.
func (op *RestoreAgentOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.WaitWithInterval(ctx, nil, 5000*time.Millisecond, opts...)
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully, op.Done will return true.
func (op *RestoreAgentOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.Poll(ctx, nil, opts...)
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *RestoreAgentOperation) Metadata() (*structpbpb.Struct, error) {
var meta structpbpb.Struct
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *RestoreAgentOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *RestoreAgentOperation) Name() string {
return op.lro.Name()
}
// TrainAgentOperation manages a long-running operation from TrainAgent.
type TrainAgentOperation struct {
lro *longrunning.Operation
}
// TrainAgentOperation returns a new TrainAgentOperation from a given name.
// The name must be that of a previously created TrainAgentOperation, possibly from a different process.
func (c *AgentsClient) TrainAgentOperation(name string) *TrainAgentOperation {
return &TrainAgentOperation{
lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning any error encountered.
//
// See documentation of Poll for error-handling information.
func (op *TrainAgentOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.WaitWithInterval(ctx, nil, 5000*time.Millisecond, opts...)
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully, op.Done will return true.
func (op *TrainAgentOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.Poll(ctx, nil, opts...)
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *TrainAgentOperation) Metadata() (*structpbpb.Struct, error) {
var meta structpbpb.Struct
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *TrainAgentOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *TrainAgentOperation) Name() string {
return op.lro.Name()
}
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