plugin

Documentation

Index

• func NewDatasource(settings backend.DataSourceInstanceSettings) (instancemgmt.Instance, error)
• type OracleDatasource
  • func (d *OracleDatasource) CheckHealth(_ context.Context, req *backend.CheckHealthRequest) (*backend.CheckHealthResult, error)
  • func (d *OracleDatasource) Dispose()
  • func (d *OracleDatasource) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error)
• type OracleDatasourceColumn
• type OracleDatasourceConnection
  • func (c *OracleDatasourceConnection) Connect(settings *OracleDatasourceSettings) error
  • func (c *OracleDatasourceConnection) Disconnect() error
  • func (c *OracleDatasourceConnection) IsConnected() bool
  • func (c *OracleDatasourceConnection) Ping() error
  • func (c *OracleDatasourceConnection) Reconnect(settings *OracleDatasourceSettings) error
• type OracleDatasourceInfo
• type OracleDatasourceQuery
  • func (q *OracleDatasourceQuery) MakeQuery(c *OracleDatasourceConnection, from time.Time, to time.Time) OracleDatasourceResult
  • func (q *OracleDatasourceQuery) ParseDatasourceQuery(query backend.DataQuery) error
• type OracleDatasourceResult
• type OracleDatasourceSettings
  • func ParseDatasourceSettings(rawOptions json.RawMessage, decryptedOptions map[string]string) OracleDatasourceSettings

Functions

func NewDatasource

func NewDatasource(settings backend.DataSourceInstanceSettings) (instancemgmt.Instance, error)

NewDatasource creates a new datasource instance.

Types

type OracleDatasource

type OracleDatasource struct {
	// contains filtered or unexported fields
}

Datasource is an example datasource which can respond to data queries, reports its health and has streaming skills.

func (*OracleDatasource) CheckHealth

func (d *OracleDatasource) CheckHealth(_ context.Context, req *backend.CheckHealthRequest) (*backend.CheckHealthResult, error)

CheckHealth handles health checks sent from Grafana to the plugin. The main use case for these health checks is the test button on the datasource configuration page which allows users to verify that a datasource is working as expected.

func (*OracleDatasource) Dispose

func (d *OracleDatasource) Dispose()

Dispose here tells plugin SDK that plugin wants to clean up resources when a new instance created. As soon as datasource settings change detected by SDK old datasource instance will be disposed and a new one will be created using NewSampleDatasource factory function.

func (*OracleDatasource) QueryData

func (d *OracleDatasource) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error)

QueryData handles multiple queries and returns multiple responses. req contains the queries []DataQuery (where each query contains RefID as a unique identifier). The QueryDataResponse contains a map of RefID to the response for each query, and each response contains Frames ([]*Frame).

type OracleDatasourceColumn

type OracleDatasourceColumn struct {
	// contains filtered or unexported fields
}

type OracleDatasourceConnection

type OracleDatasourceConnection struct {
	// contains filtered or unexported fields
}

func (*OracleDatasourceConnection) Connect

func (c *OracleDatasourceConnection) Connect(settings *OracleDatasourceSettings) error

func (*OracleDatasourceConnection) Disconnect

func (c *OracleDatasourceConnection) Disconnect() error

func (*OracleDatasourceConnection) IsConnected

func (c *OracleDatasourceConnection) IsConnected() bool

func (*OracleDatasourceConnection) Ping

func (c *OracleDatasourceConnection) Ping() error

func (*OracleDatasourceConnection) Reconnect

func (c *OracleDatasourceConnection) Reconnect(settings *OracleDatasourceSettings) error

type OracleDatasourceInfo

type OracleDatasourceInfo struct {
	Type string
	Uid  string
}

type OracleDatasourceQuery

type OracleDatasourceQuery struct {
	Datasource   OracleDatasourceInfo
	DatasourceId int64
	IntervalMs   int64
	O_parsed     string
	O_sql        string
	RefId        string
}

func (*OracleDatasourceQuery) MakeQuery

func (q *OracleDatasourceQuery) MakeQuery(c *OracleDatasourceConnection, from time.Time, to time.Time) OracleDatasourceResult

func (*OracleDatasourceQuery) ParseDatasourceQuery

func (q *OracleDatasourceQuery) ParseDatasourceQuery(query backend.DataQuery) error

type OracleDatasourceResult

type OracleDatasourceResult struct {
	// contains filtered or unexported fields
}

type OracleDatasourceSettings

type OracleDatasourceSettings struct {
	O_connStr  string
	O_hostname string
	O_password string
	O_port     int
	O_service  string
	O_sid      string
	O_user     string
}

func ParseDatasourceSettings

func ParseDatasourceSettings(rawOptions json.RawMessage, decryptedOptions map[string]string) OracleDatasourceSettings