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125 lines
3.6 KiB
125 lines
3.6 KiB
4 years ago
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'use strict';
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/**
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* Published when server description changes, but does NOT include changes to the RTT.
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*
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* @property {Object} topologyId A unique identifier for the topology
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* @property {ServerAddress} address The address (host/port pair) of the server
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* @property {ServerDescription} previousDescription The previous server description
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* @property {ServerDescription} newDescription The new server description
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*/
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class ServerDescriptionChangedEvent {
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constructor(topologyId, address, previousDescription, newDescription) {
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Object.assign(this, { topologyId, address, previousDescription, newDescription });
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}
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}
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/**
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* Published when server is initialized.
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*
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* @property {Object} topologyId A unique identifier for the topology
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* @property {ServerAddress} address The address (host/port pair) of the server
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*/
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class ServerOpeningEvent {
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constructor(topologyId, address) {
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Object.assign(this, { topologyId, address });
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}
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}
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/**
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* Published when server is closed.
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*
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* @property {ServerAddress} address The address (host/port pair) of the server
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* @property {Object} topologyId A unique identifier for the topology
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*/
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class ServerClosedEvent {
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constructor(topologyId, address) {
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Object.assign(this, { topologyId, address });
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}
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}
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/**
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* Published when topology description changes.
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*
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* @property {Object} topologyId
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* @property {TopologyDescription} previousDescription The old topology description
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* @property {TopologyDescription} newDescription The new topology description
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*/
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class TopologyDescriptionChangedEvent {
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constructor(topologyId, previousDescription, newDescription) {
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Object.assign(this, { topologyId, previousDescription, newDescription });
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}
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}
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/**
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* Published when topology is initialized.
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*
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* @param {Object} topologyId A unique identifier for the topology
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*/
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class TopologyOpeningEvent {
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constructor(topologyId) {
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Object.assign(this, { topologyId });
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}
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}
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/**
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* Published when topology is closed.
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*
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* @param {Object} topologyId A unique identifier for the topology
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*/
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class TopologyClosedEvent {
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constructor(topologyId) {
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Object.assign(this, { topologyId });
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}
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}
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/**
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* Fired when the server monitor’s ismaster command is started - immediately before
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* the ismaster command is serialized into raw BSON and written to the socket.
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*
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* @property {Object} connectionId The connection id for the command
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*/
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class ServerHeartbeatStartedEvent {
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constructor(connectionId) {
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Object.assign(this, { connectionId });
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}
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}
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/**
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* Fired when the server monitor’s ismaster succeeds.
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*
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* @param {Number} duration The execution time of the event in ms
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* @param {Object} reply The command reply
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* @param {Object} connectionId The connection id for the command
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*/
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class ServerHeartbeatSucceededEvent {
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constructor(duration, reply, connectionId) {
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Object.assign(this, { connectionId, duration, reply });
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}
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}
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/**
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* Fired when the server monitor’s ismaster fails, either with an “ok: 0” or a socket exception.
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*
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* @param {Number} duration The execution time of the event in ms
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* @param {MongoError|Object} failure The command failure
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* @param {Object} connectionId The connection id for the command
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*/
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class ServerHeartbeatFailedEvent {
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constructor(duration, failure, connectionId) {
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Object.assign(this, { connectionId, duration, failure });
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}
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}
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module.exports = {
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ServerDescriptionChangedEvent,
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ServerOpeningEvent,
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ServerClosedEvent,
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TopologyDescriptionChangedEvent,
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TopologyOpeningEvent,
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TopologyClosedEvent,
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ServerHeartbeatStartedEvent,
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ServerHeartbeatSucceededEvent,
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ServerHeartbeatFailedEvent
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};
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