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vendor/cloud.google.com/go/logging/logadmin/resources.go

@@ -0,0 +1,74 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// 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 logadmin
+
+import (
+	vkit "cloud.google.com/go/logging/apiv2"
+	"golang.org/x/net/context"
+	"google.golang.org/api/iterator"
+	mrpb "google.golang.org/genproto/googleapis/api/monitoredres"
+	logpb "google.golang.org/genproto/googleapis/logging/v2"
+)
+
+// ResourceDescriptors returns a ResourceDescriptorIterator
+// for iterating over MonitoredResourceDescriptors. Requires ReadScope or AdminScope.
+// See https://cloud.google.com/logging/docs/api/v2/#monitored-resources for an explanation of
+// monitored resources.
+// See https://cloud.google.com/logging/docs/api/v2/resource-list for a list of monitored resources.
+func (c *Client) ResourceDescriptors(ctx context.Context) *ResourceDescriptorIterator {
+	it := &ResourceDescriptorIterator{
+		it: c.lClient.ListMonitoredResourceDescriptors(ctx,
+			&logpb.ListMonitoredResourceDescriptorsRequest{}),
+	}
+	it.pageInfo, it.nextFunc = iterator.NewPageInfo(
+		it.fetch,
+		func() int { return len(it.items) },
+		func() interface{} { b := it.items; it.items = nil; return b })
+	return it
+}
+
+// ResourceDescriptorIterator is an iterator over MonitoredResourceDescriptors.
+type ResourceDescriptorIterator struct {
+	it       *vkit.MonitoredResourceDescriptorIterator
+	pageInfo *iterator.PageInfo
+	nextFunc func() error
+	items    []*mrpb.MonitoredResourceDescriptor
+}
+
+// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
+func (it *ResourceDescriptorIterator) PageInfo() *iterator.PageInfo { return it.pageInfo }
+
+// Next returns the next result. Its second return value is Done if there are
+// no more results. Once Next returns Done, all subsequent calls will return
+// Done.
+func (it *ResourceDescriptorIterator) Next() (*mrpb.MonitoredResourceDescriptor, error) {
+	if err := it.nextFunc(); err != nil {
+		return nil, err
+	}
+	item := it.items[0]
+	it.items = it.items[1:]
+	return item, nil
+}
+
+func (it *ResourceDescriptorIterator) fetch(pageSize int, pageToken string) (string, error) {
+	return iterFetch(pageSize, pageToken, it.it.PageInfo(), func() error {
+		item, err := it.it.Next()
+		if err != nil {
+			return err
+		}
+		it.items = append(it.items, item)
+		return nil
+	})
+}