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agonesSDK.js
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agonesSDK.js
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// Copyright 2019 Google LLC All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
const grpc = require('@grpc/grpc-js');
const Alpha = require('./alpha');
const messages = require('../lib/sdk_pb');
const servicesPackageDefinition = require('../lib/sdk_grpc_pb');
class AgonesSDK {
constructor() {
const services = grpc.loadPackageDefinition(servicesPackageDefinition);
const address = `localhost:${this.port}`;
const credentials = grpc.credentials.createInsecure();
this.client = new services.agones.dev.sdk.SDK(address, credentials);
this.healthStream = undefined;
this.streams = [];
this.alpha = new Alpha(address, credentials);
}
get port() {
return process.env.AGONES_SDK_GRPC_PORT || '9357';
}
async connect() {
return new Promise((resolve, reject) => {
this.client.waitForReady(Date.now() + 30000, (error) => {
if (error) {
reject(error);
} else {
resolve();
}
});
});
}
close() {
if (this.healthStream !== undefined) {
this.healthStream.end();
}
this.streams.forEach(stream => stream.destroy());
this.client.close();
}
async ready() {
const request = new messages.Empty();
return new Promise((resolve, reject) => {
this.client.ready(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
async allocate() {
const request = new messages.Empty();
return new Promise((resolve, reject) => {
this.client.allocate(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
async shutdown() {
const request = new messages.Empty();
return new Promise((resolve, reject) => {
this.client.shutdown(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
health(errorCallback) {
if (this.healthStream === undefined) {
this.healthStream = this.client.health(() => {
// Ignore error as this can't be caught
});
this.healthStream.on('error', () => {
// ignore error, prevent from being uncaught
});
}
const request = new messages.Empty();
this.healthStream.write(request, null, (error) => {
if (error) {
if (errorCallback) {
errorCallback(error);
return;
}
throw error;
}
});
}
async getGameServer() {
const request = new messages.Empty();
return new Promise((resolve, reject) => {
this.client.getGameServer(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
watchGameServer(callback, errorCallback) {
const request = new messages.Empty();
const stream = this.client.watchGameServer(request);
stream.on('data', (data) => {
callback(data.toObject());
});
if (errorCallback) {
stream.on('error', (error) => {
errorCallback(error);
});
}
this.streams.push(stream);
}
async setLabel(key, value) {
const request = new messages.KeyValue();
request.setKey(key);
request.setValue(value);
return new Promise((resolve, reject) => {
this.client.setLabel(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
async setAnnotation(key, value) {
const request = new messages.KeyValue();
request.setKey(key);
request.setValue(value);
return new Promise((resolve, reject) => {
this.client.setAnnotation(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
async reserve(duration) {
const request = new messages.Duration();
request.setSeconds(duration);
return new Promise((resolve, reject) => {
this.client.reserve(request, (error, response) => {
if (error) {
reject(error);
} else {
resolve(response.toObject());
}
});
});
}
}
module.exports = AgonesSDK;