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broker.go
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broker.go
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// Copyright the Service Broker Project Authors.
//
// 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 bigquery
import (
"code.cloudfoundry.org/lager"
"encoding/json"
"fmt"
"gcp-service-broker/brokerapi/brokers/broker_base"
"gcp-service-broker/brokerapi/brokers/models"
"gcp-service-broker/brokerapi/brokers/name_generator"
"gcp-service-broker/db_service"
googlebigquery "google.golang.org/api/bigquery/v2"
"net/http"
)
type BigQueryBroker struct {
Client *http.Client
ProjectId string
Logger lager.Logger
AccountManager models.AccountManager
broker_base.BrokerBase
}
type InstanceInformation struct {
DatasetId string `json:"dataset_id"`
}
// Creates a new BigQuery dataset identified by the name provided in details.RawParameters.name and optional location
// (possible values are "US" or "EU", defaults to "US")
func (b *BigQueryBroker) Provision(instanceId string, details models.ProvisionDetails, plan models.PlanDetails) (models.ServiceInstanceDetails, error) {
var err error
var params map[string]string
if len(details.RawParameters) == 0 {
params = map[string]string{}
} else if err = json.Unmarshal(details.RawParameters, ¶ms); err != nil {
return models.ServiceInstanceDetails{}, fmt.Errorf("Error unmarshalling parameters: %s", err)
}
// Ensure there is a name for this instance
if _, ok := params["name"]; !ok {
params["name"] = name_generator.Basic.InstanceName()
}
service, err := googlebigquery.New(b.Client)
if err != nil {
return models.ServiceInstanceDetails{}, fmt.Errorf("Error creating bigquery client: %s", err)
}
service.UserAgent = models.CustomUserAgent
loc := "US"
userLoc, locOk := params["location"]
if locOk {
loc = userLoc
}
d := googlebigquery.Dataset{
Location: loc,
DatasetReference: &googlebigquery.DatasetReference{
DatasetId: params["name"],
},
}
new_dataset, err := service.Datasets.Insert(b.ProjectId, &d).Do()
if err != nil {
return models.ServiceInstanceDetails{}, fmt.Errorf("Error inserting new dataset: %s", err)
}
ii := InstanceInformation{
DatasetId: params["name"],
}
otherDetails, err := json.Marshal(ii)
if err != nil {
return models.ServiceInstanceDetails{}, fmt.Errorf("Error marshalling other details: %s", err)
}
i := models.ServiceInstanceDetails{
Name: new_dataset.DatasetReference.DatasetId,
Url: new_dataset.SelfLink,
Location: new_dataset.Location,
OtherDetails: string(otherDetails),
}
return i, nil
}
// deletes the dataset associated with the given instanceID string
// note that all tables in the dataset must be deleted prior to deprovisioning
func (b *BigQueryBroker) Deprovision(instanceID string, details models.DeprovisionDetails) error {
var err error
service, err := googlebigquery.New(b.Client)
if err != nil {
return fmt.Errorf("Error creating BigQuery client: %s", err)
}
dataset := models.ServiceInstanceDetails{}
if err = db_service.DbConnection.Where("ID = ?", instanceID).First(&dataset).Error; err != nil {
return models.ErrInstanceDoesNotExist
}
if err = service.Datasets.Delete(b.ProjectId, dataset.Name).Do(); err != nil {
return fmt.Errorf("Error deleting dataset: %s", err)
}
return nil
}