libovsdb

package
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 Go to latest Published: Apr 26, 2016 License: Apache-2.0, Apache-2.0 Imports: 11 Imported by: 0

README

libovsdb

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An OVSDB Library written in Go

What is OVSDB?

OVSDB is the Open vSwitch Database Protocol. It's defined in RFC 7047 It's used mainly for managing the configuration of Open vSwitch, but it could also be used to manage your stamp collection. Philatelists Rejoice!

## Running the tests

To run only unit tests:

make test

To run integration tests, you'll need access to docker to run an Open vSwitch container. Mac users can use boot2docker

export DOCKER_IP=192.168.59.103
fig up -d
make test-all
fig stop

Dependency Management

We use godep for dependency management with rewritten import paths. This allows the repo to be go getable.

To bump the version of a dependency, follow these instructions

Documentation

Index

Constants

View Source 
const DEFAULT_ADDR = "127.0.0.1"
View Source 
const DEFAULT_PORT = 6640

Variables

This section is empty.

Functions

func NewCancelArgs 

func NewCancelArgs(id interface{}) []interface{}

NewCancelArgs creates a new set of arguments for a cancel RPC

func NewCondition 

func NewCondition(column string, function string, value interface{}) []interface{}

NewCondition creates a new condition as specified in RFC7047

func NewGetSchemaArgs 

func NewGetSchemaArgs(schema string) []interface{}

NewGetSchemaArgs creates a new set of arguments for a get_schemas RPC

func NewLockArgs 

func NewLockArgs(id interface{}) []interface{}

NewLockArgs creates a new set of arguments for a lock, steal or unlock RPC

func NewMonitorArgs 

func NewMonitorArgs(database string, value interface{}, requests map[string]MonitorRequest) []interface{}

NewMonitorArgs creates a new set of arguments for a monitor RPC

func NewMonitorCancelArgs 

func NewMonitorCancelArgs(value interface{}) []interface{}

NewMonitorCancelArgs creates a new set of arguments for a monitor_cancel RPC

func NewMutation 

func NewMutation(column string, mutator string, value interface{}) []interface{}

NewMutation creates a new mutation as specified in RFC7047

func NewTransactArgs 

func NewTransactArgs(database string, operations ...Operation) []interface{}

NewTransactArgs creates a new set of arguments for a transact RPC

Types

type ColumnSchema 

type ColumnSchema struct {
	Name      string      `json:"name"`
	Type      interface{} `json:"type"`
	Ephemeral bool        `json:"ephemeral,omitempty"`
	Mutable   bool        `json:"mutable,omitempty"`
}

type DatabaseSchema 

type DatabaseSchema struct {
	Name    string                 `json:"name"`
	Version string                 `json:"version"`
	Tables  map[string]TableSchema `json:"tables"`
}

func (DatabaseSchema) Print 

func (schema DatabaseSchema) Print(w io.Writer)

type MonitorRequest 

type MonitorRequest struct {
	Columns []string      `json:"columns,omitempty"`
	Select  MonitorSelect `json:"select,omitempty"`
}

MonitorRequest represents a monitor request according to RFC7047

type MonitorRequests 

type MonitorRequests struct {
	Requests map[string]MonitorRequest `json:"requests,overflow"`
}

type MonitorSelect 

type MonitorSelect struct {
	Initial bool `json:"initial,omitempty"`
	Insert  bool `json:"insert,omitempty"`
	Delete  bool `json:"delete,omitempty"`
	Modify  bool `json:"modify,omitempty"`
}

MonitorSelect represents a monitor select according to RFC7047

type NotificationHandler 

type NotificationHandler interface {
	// RFC 7047 section 4.1.6 Update Notification
	Update(context interface{}, tableUpdates TableUpdates)

	// RFC 7047 section 4.1.9 Locked Notification
	Locked([]interface{})

	// RFC 7047 section 4.1.10 Stolen Notification
	Stolen([]interface{})

	// RFC 7047 section 4.1.11 Echo Notification
	Echo([]interface{})

	Disconnected(*OvsdbClient)
}

type Operation 

type Operation struct {
	Op        string                   `json:"op"`
	Table     string                   `json:"table"`
	Row       map[string]interface{}   `json:"row,omitempty"`
	Rows      []map[string]interface{} `json:"rows,omitempty"`
	Columns   []string                 `json:"columns,omitempty"`
	Mutations []interface{}            `json:"mutations,omitempty"`
	Timeout   int                      `json:"timeout,omitempty"`
	Where     []interface{}            `json:"where,omitempty"`
	Until     string                   `json:"until,omitempty"`
	UUIDName  string                   `json:"uuid-name,omitempty"`
}

Operation represents an operation according to RFC7047 section 5.2

type OperationResult 

type OperationResult struct {
	Count   int                      `json:"count,omitempty"`
	Error   string                   `json:"error,omitempty"`
	Details string                   `json:"details,omitempty"`
	UUID    UUID                     `json:"uuid,omitempty"`
	Rows    []map[string]interface{} `json:"rows,omitempty"`
}

type OvsMap 

type OvsMap struct {
	GoMap map[interface{}]interface{}
}

func NewOvsMap 

func NewOvsMap(goMap interface{}) (*OvsMap, error)

<map> notation requires special marshaling

func (OvsMap) MarshalJSON 

func (o OvsMap) MarshalJSON() ([]byte, error)

<map> notation requires special handling

func (*OvsMap) UnmarshalJSON 

func (o *OvsMap) UnmarshalJSON(b []byte) (err error)

type OvsSet 

type OvsSet struct {
	GoSet []interface{}
}

func NewOvsSet 

func NewOvsSet(goSlice interface{}) (*OvsSet, error)

<set> notation requires special handling

func (OvsSet) MarshalJSON 

func (o OvsSet) MarshalJSON() ([]byte, error)

<set> notation requires special marshaling

func (*OvsSet) UnmarshalJSON 

func (o *OvsSet) UnmarshalJSON(b []byte) (err error)

type OvsdbClient 

type OvsdbClient struct {
	Schema map[string]DatabaseSchema
	// contains filtered or unexported fields
}

func Connect 

func Connect(ipAddr string, port int) (*OvsdbClient, error)

func (OvsdbClient) Disconnect 

func (ovs OvsdbClient) Disconnect()

func (OvsdbClient) GetSchema 

func (ovs OvsdbClient) GetSchema(dbName string) (*DatabaseSchema, error)

RFC 7047 : get_schema

func (OvsdbClient) ListDbs 

func (ovs OvsdbClient) ListDbs() ([]string, error)

RFC 7047 : list_dbs

func (OvsdbClient) Monitor 

func (ovs OvsdbClient) Monitor(database string, jsonContext interface{}, requests map[string]MonitorRequest) (*TableUpdates, error)

RFC 7047 : monitor

func (OvsdbClient) MonitorAll 

func (ovs OvsdbClient) MonitorAll(database string, jsonContext interface{}) (*TableUpdates, error)

Convenience method to monitor every table/column

func (*OvsdbClient) Register 

func (ovs *OvsdbClient) Register(handler NotificationHandler)

func (OvsdbClient) Transact 

func (ovs OvsdbClient) Transact(database string, operation ...Operation) ([]OperationResult, error)

type OvsdbError 

type OvsdbError struct {
	Error   string `json:"error"`
	Details string `json:"details,omitempty"`
}

OvsdbError is an OVS Error Condition

type Row 

type Row struct {
	Fields map[string]interface{}
}

func (*Row) UnmarshalJSON 

func (r *Row) UnmarshalJSON(b []byte) (err error)

type RowUpdate 

type RowUpdate struct {
	Uuid UUID `json:"-,omitempty"`
	New  Row  `json:"new,omitempty"`
	Old  Row  `json:"old,omitempty"`
}

type TableSchema 

type TableSchema struct {
	Columns map[string]ColumnSchema `json:"columns"`
	Indexes [][]string              `json:"indexes,omitempty"`
}

type TableUpdate 

type TableUpdate struct {
	Rows map[string]RowUpdate `json:"rows,overflow"`
}

type TableUpdates 

type TableUpdates struct {
	Updates map[string]TableUpdate `json:"updates,overflow"`
}

* We cannot use TableUpdates directly by json encoding by inlining the TableUpdate Map * structure till GoLang issue #6213 makes it. * * The only option is to go with raw map[string]map[string]interface{} option :-( that sucks ! * Refer to client.go : MonitorAll() function for more details

type TransactResponse 

type TransactResponse struct {
	Result []OperationResult `json:"result"`
	Error  string            `json:"error"`
}

type UUID 

type UUID struct {
	GoUuid string `json:"uuid"`
}

func (UUID) MarshalJSON 

func (u UUID) MarshalJSON() ([]byte, error)

<set> notation requires special marshaling

func (*UUID) UnmarshalJSON 

func (u *UUID) UnmarshalJSON(b []byte) (err error)

Source Files

  • client.go
  • map.go
  • notation.go
  • row.go
  • rpc.go
  • schema.go
  • set.go
  • uuid.go

Directories

Path Synopsis

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