open-consul/consul/internal_endpoint.go

package consul

import (
	"github.com/hashicorp/consul/consul/structs"
)

// Internal endpoint is used to query the miscellaneous info that
// does not necessarily fit into the other systems. It is also
// used to hold undocumented APIs that users should not rely on.
type Internal struct {
	srv *Server
}

// ChecksInState is used to get all the checks in a given state
func (m *Internal) NodeInfo(args *structs.NodeSpecificRequest,
	reply *structs.IndexedNodeDump) error {
	if done, err := m.srv.forward("Internal.NodeInfo", args, args, reply); done {
		return err
	}

	// Get the state specific checks
	state := m.srv.fsm.State()
	return m.srv.blockingRPC(&args.QueryOptions,
		&reply.QueryMeta,
		state.QueryTables("NodeInfo"),
		func() error {
			reply.Index, reply.Dump = state.NodeInfo(args.Node)
			return nil
		})
}

// ChecksInState is used to get all the checks in a given state
func (m *Internal) NodeDump(args *structs.DCSpecificRequest,
	reply *structs.IndexedNodeDump) error {
	if done, err := m.srv.forward("Internal.NodeDump", args, args, reply); done {
		return err
	}

	// Get the state specific checks
	state := m.srv.fsm.State()
	return m.srv.blockingRPC(&args.QueryOptions,
		&reply.QueryMeta,
		state.QueryTables("NodeDump"),
		func() error {
			reply.Index, reply.Dump = state.NodeDump()
			return nil
		})
}

// EventFire is a bit of an odd endpoint, but it allows for a cross-DC RPC
// call to fire an event. The primary use case is to enable user events being
// triggered in a remote DC.
func (m *Internal) EventFire(args *structs.EventFireRequest,
	reply *structs.EventFireResponse) error {
	if done, err := m.srv.forward("Internal.EventFire", args, args, reply); done {
		return err
	}

	// Set the query meta data
	m.srv.setQueryMeta(&reply.QueryMeta)

	// Fire the event
	return m.srv.UserEvent(args.Name, args.Payload)
}