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// Copyright 2019 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.
// Code generated by gapic-generator. DO NOT EDIT.
package monitoring
import (
"context"
"fmt"
"math"
"net/url"
"time"
"github.com/golang/protobuf/proto"
gax "github.com/googleapis/gax-go/v2"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
"google.golang.org/api/transport"
metricpb "google.golang.org/genproto/googleapis/api/metric"
monitoredrespb "google.golang.org/genproto/googleapis/api/monitoredres"
monitoringpb "google.golang.org/genproto/googleapis/monitoring/v3"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
)
// MetricCallOptions contains the retry settings for each method of MetricClient.
type MetricCallOptions struct {
ListMonitoredResourceDescriptors []gax.CallOption
GetMonitoredResourceDescriptor []gax.CallOption
ListMetricDescriptors []gax.CallOption
GetMetricDescriptor []gax.CallOption
CreateMetricDescriptor []gax.CallOption
DeleteMetricDescriptor []gax.CallOption
ListTimeSeries []gax.CallOption
CreateTimeSeries []gax.CallOption
}
func defaultMetricClientOptions() []option.ClientOption {
return []option.ClientOption{
option.WithEndpoint("monitoring.googleapis.com:443"),
option.WithScopes(DefaultAuthScopes()...),
}
}
func defaultMetricCallOptions() *MetricCallOptions {
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 &MetricCallOptions{
ListMonitoredResourceDescriptors: retry[[2]string{"default", "idempotent"}],
GetMonitoredResourceDescriptor: retry[[2]string{"default", "idempotent"}],
ListMetricDescriptors: retry[[2]string{"default", "idempotent"}],
GetMetricDescriptor: retry[[2]string{"default", "idempotent"}],
CreateMetricDescriptor: retry[[2]string{"default", "non_idempotent"}],
DeleteMetricDescriptor: retry[[2]string{"default", "idempotent"}],
ListTimeSeries: retry[[2]string{"default", "idempotent"}],
CreateTimeSeries: retry[[2]string{"default", "non_idempotent"}],
}
}
// MetricClient is a client for interacting with Stackdriver Monitoring API.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type MetricClient struct {
// The connection to the service.
conn *grpc.ClientConn
// The gRPC API client.
metricClient monitoringpb.MetricServiceClient
// The call options for this service.
CallOptions *MetricCallOptions
// The x-goog-* metadata to be sent with each request.
xGoogMetadata metadata.MD
}
// NewMetricClient creates a new metric service client.
//
// Manages metric descriptors, monitored resource descriptors, and
// time series data.
func NewMetricClient(ctx context.Context, opts ...option.ClientOption) (*MetricClient, error) {
conn, err := transport.DialGRPC(ctx, append(defaultMetricClientOptions(), opts...)...)
if err != nil {
return nil, err
}
c := &MetricClient{
conn: conn,
CallOptions: defaultMetricCallOptions(),
metricClient: monitoringpb.NewMetricServiceClient(conn),
}
c.setGoogleClientInfo()
return c, nil
}
// Connection returns the client's connection to the API service.
func (c *MetricClient) 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 *MetricClient) 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 *MetricClient) setGoogleClientInfo(keyval ...string) {
kv := append([]string{"gl-go", versionGo()}, keyval...)
kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}
// ListMonitoredResourceDescriptors lists monitored resource descriptors that match a filter. This method does
// not require a Stackdriver account.
func (c *MetricClient) ListMonitoredResourceDescriptors(ctx context.Context, req *monitoringpb.ListMonitoredResourceDescriptorsRequest, opts ...gax.CallOption) *MonitoredResourceDescriptorIterator {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.ListMonitoredResourceDescriptors[0:len(c.CallOptions.ListMonitoredResourceDescriptors):len(c.CallOptions.ListMonitoredResourceDescriptors)], opts...)
it := &MonitoredResourceDescriptorIterator{}
req = proto.Clone(req).(*monitoringpb.ListMonitoredResourceDescriptorsRequest)
it.InternalFetch = func(pageSize int, pageToken string) ([]*monitoredrespb.MonitoredResourceDescriptor, string, error) {
var resp *monitoringpb.ListMonitoredResourceDescriptorsResponse
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.metricClient.ListMonitoredResourceDescriptors(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, "", err
}
return resp.ResourceDescriptors, 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)
it.pageInfo.MaxSize = int(req.PageSize)
it.pageInfo.Token = req.PageToken
return it
}
// GetMonitoredResourceDescriptor gets a single monitored resource descriptor. This method does not require a
// Stackdriver account.
func (c *MetricClient) GetMonitoredResourceDescriptor(ctx context.Context, req *monitoringpb.GetMonitoredResourceDescriptorRequest, opts ...gax.CallOption) (*monitoredrespb.MonitoredResourceDescriptor, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.GetMonitoredResourceDescriptor[0:len(c.CallOptions.GetMonitoredResourceDescriptor):len(c.CallOptions.GetMonitoredResourceDescriptor)], opts...)
var resp *monitoredrespb.MonitoredResourceDescriptor
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.metricClient.GetMonitoredResourceDescriptor(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// ListMetricDescriptors lists metric descriptors that match a filter. This method does not require
// a Stackdriver account.
func (c *MetricClient) ListMetricDescriptors(ctx context.Context, req *monitoringpb.ListMetricDescriptorsRequest, opts ...gax.CallOption) *MetricDescriptorIterator {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.ListMetricDescriptors[0:len(c.CallOptions.ListMetricDescriptors):len(c.CallOptions.ListMetricDescriptors)], opts...)
it := &MetricDescriptorIterator{}
req = proto.Clone(req).(*monitoringpb.ListMetricDescriptorsRequest)
it.InternalFetch = func(pageSize int, pageToken string) ([]*metricpb.MetricDescriptor, string, error) {
var resp *monitoringpb.ListMetricDescriptorsResponse
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.metricClient.ListMetricDescriptors(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, "", err
}
return resp.MetricDescriptors, 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)
it.pageInfo.MaxSize = int(req.PageSize)
it.pageInfo.Token = req.PageToken
return it
}
// GetMetricDescriptor gets a single metric descriptor. This method does not require a Stackdriver
// account.
func (c *MetricClient) GetMetricDescriptor(ctx context.Context, req *monitoringpb.GetMetricDescriptorRequest, opts ...gax.CallOption) (*metricpb.MetricDescriptor, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.GetMetricDescriptor[0:len(c.CallOptions.GetMetricDescriptor):len(c.CallOptions.GetMetricDescriptor)], opts...)
var resp *metricpb.MetricDescriptor
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.metricClient.GetMetricDescriptor(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// CreateMetricDescriptor creates a new metric descriptor.
// User-created metric descriptors define
// custom metrics (at /monitoring/custom-metrics).
func (c *MetricClient) CreateMetricDescriptor(ctx context.Context, req *monitoringpb.CreateMetricDescriptorRequest, opts ...gax.CallOption) (*metricpb.MetricDescriptor, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.CreateMetricDescriptor[0:len(c.CallOptions.CreateMetricDescriptor):len(c.CallOptions.CreateMetricDescriptor)], opts...)
var resp *metricpb.MetricDescriptor
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.metricClient.CreateMetricDescriptor(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// DeleteMetricDescriptor deletes a metric descriptor. Only user-created
// custom metrics (at /monitoring/custom-metrics) can be deleted.
func (c *MetricClient) DeleteMetricDescriptor(ctx context.Context, req *monitoringpb.DeleteMetricDescriptorRequest, opts ...gax.CallOption) error {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.DeleteMetricDescriptor[0:len(c.CallOptions.DeleteMetricDescriptor):len(c.CallOptions.DeleteMetricDescriptor)], opts...)
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
_, err = c.metricClient.DeleteMetricDescriptor(ctx, req, settings.GRPC...)
return err
}, opts...)
return err
}
// ListTimeSeries lists time series that match a filter. This method does not require a
// Stackdriver account.
func (c *MetricClient) ListTimeSeries(ctx context.Context, req *monitoringpb.ListTimeSeriesRequest, opts ...gax.CallOption) *TimeSeriesIterator {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.ListTimeSeries[0:len(c.CallOptions.ListTimeSeries):len(c.CallOptions.ListTimeSeries)], opts...)
it := &TimeSeriesIterator{}
req = proto.Clone(req).(*monitoringpb.ListTimeSeriesRequest)
it.InternalFetch = func(pageSize int, pageToken string) ([]*monitoringpb.TimeSeries, string, error) {
var resp *monitoringpb.ListTimeSeriesResponse
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.metricClient.ListTimeSeries(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, "", err
}
return resp.TimeSeries, 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)
it.pageInfo.MaxSize = int(req.PageSize)
it.pageInfo.Token = req.PageToken
return it
}
// CreateTimeSeries creates or adds data to one or more time series.
// The response is empty if all time series in the request were written.
// If any time series could not be written, a corresponding failure message is
// included in the error response.
func (c *MetricClient) CreateTimeSeries(ctx context.Context, req *monitoringpb.CreateTimeSeriesRequest, opts ...gax.CallOption) error {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append(c.CallOptions.CreateTimeSeries[0:len(c.CallOptions.CreateTimeSeries):len(c.CallOptions.CreateTimeSeries)], opts...)
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
_, err = c.metricClient.CreateTimeSeries(ctx, req, settings.GRPC...)
return err
}, opts...)
return err
}
// MetricDescriptorIterator manages a stream of *metricpb.MetricDescriptor.
type MetricDescriptorIterator struct {
items []*metricpb.MetricDescriptor
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 []*metricpb.MetricDescriptor, nextPageToken string, err error)
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *MetricDescriptorIterator) 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 *MetricDescriptorIterator) Next() (*metricpb.MetricDescriptor, error) {
var item *metricpb.MetricDescriptor
if err := it.nextFunc(); err != nil {
return item, err
}
item = it.items[0]
it.items = it.items[1:]
return item, nil
}
func (it *MetricDescriptorIterator) bufLen() int {
return len(it.items)
}
func (it *MetricDescriptorIterator) takeBuf() interface{} {
b := it.items
it.items = nil
return b
}
// MonitoredResourceDescriptorIterator manages a stream of *monitoredrespb.MonitoredResourceDescriptor.
type MonitoredResourceDescriptorIterator struct {
items []*monitoredrespb.MonitoredResourceDescriptor
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 []*monitoredrespb.MonitoredResourceDescriptor, nextPageToken string, err error)
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *MonitoredResourceDescriptorIterator) 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 *MonitoredResourceDescriptorIterator) Next() (*monitoredrespb.MonitoredResourceDescriptor, error) {
var item *monitoredrespb.MonitoredResourceDescriptor
if err := it.nextFunc(); err != nil {
return item, err
}
item = it.items[0]
it.items = it.items[1:]
return item, nil
}
func (it *MonitoredResourceDescriptorIterator) bufLen() int {
return len(it.items)
}
func (it *MonitoredResourceDescriptorIterator) takeBuf() interface{} {
b := it.items
it.items = nil
return b
}
// TimeSeriesIterator manages a stream of *monitoringpb.TimeSeries.
type TimeSeriesIterator struct {
items []*monitoringpb.TimeSeries
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 []*monitoringpb.TimeSeries, nextPageToken string, err error)
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *TimeSeriesIterator) 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 *TimeSeriesIterator) Next() (*monitoringpb.TimeSeries, error) {
var item *monitoringpb.TimeSeries
if err := it.nextFunc(); err != nil {
return item, err
}
item = it.items[0]
it.items = it.items[1:]
return item, nil
}
func (it *TimeSeriesIterator) bufLen() int {
return len(it.items)
}
func (it *TimeSeriesIterator) takeBuf() interface{} {
b := it.items
it.items = nil
return b
}
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