mirror of
https://github.com/cwinfo/matterbridge.git
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105 lines
2.6 KiB
Go
105 lines
2.6 KiB
Go
package consulapi
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import (
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"bytes"
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"strconv"
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)
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// Event can be used to query the Event endpoints
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type Event struct {
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c *Client
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}
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// UserEvent represents an event that was fired by the user
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type UserEvent struct {
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ID string
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Name string
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Payload []byte
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NodeFilter string
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ServiceFilter string
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TagFilter string
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Version int
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LTime uint64
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}
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// Event returns a handle to the event endpoints
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func (c *Client) Event() *Event {
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return &Event{c}
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}
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// Fire is used to fire a new user event. Only the Name, Payload and Filters
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// are respected. This returns the ID or an associated error. Cross DC requests
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// are supported.
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func (e *Event) Fire(params *UserEvent, q *WriteOptions) (string, *WriteMeta, error) {
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r := e.c.newRequest("PUT", "/v1/event/fire/"+params.Name)
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r.setWriteOptions(q)
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if params.NodeFilter != "" {
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r.params.Set("node", params.NodeFilter)
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}
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if params.ServiceFilter != "" {
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r.params.Set("service", params.ServiceFilter)
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}
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if params.TagFilter != "" {
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r.params.Set("tag", params.TagFilter)
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}
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if params.Payload != nil {
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r.body = bytes.NewReader(params.Payload)
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}
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rtt, resp, err := requireOK(e.c.doRequest(r))
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if err != nil {
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return "", nil, err
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}
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defer resp.Body.Close()
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wm := &WriteMeta{RequestTime: rtt}
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var out UserEvent
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if err := decodeBody(resp, &out); err != nil {
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return "", nil, err
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}
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return out.ID, wm, nil
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}
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// List is used to get the most recent events an agent has received.
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// This list can be optionally filtered by the name. This endpoint supports
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// quasi-blocking queries. The index is not monotonic, nor does it provide provide
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// LastContact or KnownLeader.
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func (e *Event) List(name string, q *QueryOptions) ([]*UserEvent, *QueryMeta, error) {
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r := e.c.newRequest("GET", "/v1/event/list")
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r.setQueryOptions(q)
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if name != "" {
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r.params.Set("name", name)
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}
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rtt, resp, err := requireOK(e.c.doRequest(r))
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if err != nil {
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return nil, nil, err
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}
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defer resp.Body.Close()
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qm := &QueryMeta{}
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parseQueryMeta(resp, qm)
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qm.RequestTime = rtt
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var entries []*UserEvent
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if err := decodeBody(resp, &entries); err != nil {
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return nil, nil, err
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}
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return entries, qm, nil
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}
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// IDToIndex is a bit of a hack. This simulates the index generation to
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// convert an event ID into a WaitIndex.
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func (e *Event) IDToIndex(uuid string) uint64 {
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lower := uuid[0:8] + uuid[9:13] + uuid[14:18]
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upper := uuid[19:23] + uuid[24:36]
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lowVal, err := strconv.ParseUint(lower, 16, 64)
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if err != nil {
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panic("Failed to convert " + lower)
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}
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highVal, err := strconv.ParseUint(upper, 16, 64)
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if err != nil {
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panic("Failed to convert " + upper)
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}
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return lowVal ^ highVal
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}
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