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ServerMetadata.ts
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ServerMetadata.ts
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import {OnmsVersion} from '../api/OnmsVersion';
import {ServerType, ServerTypes} from '../api/ServerType';
import {TicketerConfig} from './TicketerConfig';
/**
* A class that represents the capabilities an OpenNMS server has and other information about it.
* @module ServerMetadata
*/
export class ServerMetadata {
/** The version of the server. */
public version: OnmsVersion;
/** The type of server (Horizon, Meridian). */
public type: ServerType;
/** The ticketer config. Requires at least version 21.0.0 of OpenNMS. */
public ticketerConfig?: TicketerConfig;
/**
* Construct a ServerMetadata object.
* @constructor
* @param version the version of the server
* @param type the type of server (Horizon, Meridian)
*/
constructor(version?: string | OnmsVersion, type?: ServerType) {
if (version instanceof OnmsVersion) {
this.version = version || new OnmsVersion('0.0.0');
} else {
this.version = new OnmsVersion(version || '0.0.0');
}
this.type = type || ServerTypes.HORIZON;
}
/** Can you ack alarms through ReST? */
public ackAlarms() {
return this.version.ge('14.0.0');
}
/** Does this server support flow data? */
public flows() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2019.0.0');
} else {
return this.version.ge('22.0.0');
}
}
/** Does this server support graphs? (ie, the measurements API) */
public graphs() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2016.1.0');
} else {
return this.version.ge('16.0.0');
}
}
/** Does this server support outage summaries? */
public outageSummaries() {
return this.version.ge('14.0.3');
}
/** Does this server support setting the location on a node? */
public setNodeLocation() {
return this.version.ge('15.0.2');
}
/** Is it safe to use JSON for most operations? */
public useJson() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2017.0.0');
} else {
return this.version.ge('19.0.0');
}
}
/** Does this server support situations? */
public situations() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2019.0.0');
} else {
return this.version.ge('23.0.0');
}
}
/** Does this server support ticketer configuration metadata? */
public ticketer() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2017.0.0');
} else {
return this.version.ge('21.0.0');
}
}
/** What version of the ReST API does this server support? */
public apiVersion() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2017.1.0') ? 2 : 1;
} else {
return this.version.ge('20.1.0') ? 2 : 1;
}
}
/** Does this version support the drift 2.0 flows enhancements? */
public enhancedFlows() {
if (this.type && this.type === ServerTypes.MERIDIAN) {
return this.version.ge('2019.0.0');
} else {
return this.version.ge('25.0.0');
}
}
/** Returns a convenient data structure with all capabilities listed. */
public capabilities(): {[key: string]: any} {
return {
ackAlarms: this.ackAlarms(),
apiVersion: this.apiVersion(),
enhancedFlows: this.enhancedFlows(),
flows: this.flows(),
graphs: this.graphs(),
outageSummaries: this.outageSummaries(),
setNodeLocation: this.setNodeLocation(),
situations: this.situations(),
ticketer: this.ticketer(),
type: (this.type === ServerTypes.MERIDIAN ? 'Meridian' : 'Horizon'),
};
}
/** A human-readable representation of the metadata. */
public toString() {
return 'ServerMetadata[version=' + this.version.toString()
+ ',apiVersion=' + this.apiVersion()
+ ',type=' + this.type.toString()
+ ',ackAlarms=' + this.ackAlarms()
+ ',enhancedFlows=' + this.enhancedFlows()
+ ',flows=' + this.flows()
+ ',graphs=' + this.graphs()
+ ',outageSummaries=' + this.outageSummaries()
+ ',setNodeLocation=' + this.setNodeLocation()
+ ',situations=' + this.situations()
+ ',ticketer=' + this.ticketer()
+ ']';
}
/**
* Whether this metadata object is the same as another.
*/
public equals(that?: ServerMetadata) {
return that &&
(this.version === that.version || (this.version && this.version.equals(that.version))) &&
(this.type === that.type || this.type.id === that.type.id) &&
(this.ticketerConfig === that.ticketerConfig ||
(this.ticketerConfig && this.ticketerConfig.equals(that.ticketerConfig)));
}
/**
* Create a new metadata object from this existing one.
*/
public clone() {
return new ServerMetadata(this.version.clone(), this.type);
}
}