79 lines
1.4 KiB
Go
79 lines
1.4 KiB
Go
package raft
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import (
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"io"
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)
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// Join command interface
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type JoinCommand interface {
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Command
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NodeName() string
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}
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// Join command
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type DefaultJoinCommand struct {
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Name string `json:"name"`
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ConnectionString string `json:"connectionString"`
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}
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// Leave command interface
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type LeaveCommand interface {
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Command
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NodeName() string
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}
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// Leave command
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type DefaultLeaveCommand struct {
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Name string `json:"name"`
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}
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// NOP command
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type NOPCommand struct {
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}
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// The name of the Join command in the log
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func (c *DefaultJoinCommand) CommandName() string {
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return "raft:join"
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}
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func (c *DefaultJoinCommand) Apply(server Server) (interface{}, error) {
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err := server.AddPeer(c.Name, c.ConnectionString)
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return []byte("join"), err
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}
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func (c *DefaultJoinCommand) NodeName() string {
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return c.Name
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}
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// The name of the Leave command in the log
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func (c *DefaultLeaveCommand) CommandName() string {
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return "raft:leave"
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}
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func (c *DefaultLeaveCommand) Apply(server Server) (interface{}, error) {
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err := server.RemovePeer(c.Name)
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return []byte("leave"), err
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}
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func (c *DefaultLeaveCommand) NodeName() string {
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return c.Name
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}
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// The name of the NOP command in the log
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func (c NOPCommand) CommandName() string {
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return "raft:nop"
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}
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func (c NOPCommand) Apply(server Server) (interface{}, error) {
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return nil, nil
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}
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func (c NOPCommand) Encode(w io.Writer) error {
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return nil
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}
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func (c NOPCommand) Decode(r io.Reader) error {
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return nil
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}
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