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syntaxLanguageClient.ts
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117 lines (104 loc) · 3.57 KB
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'use strict';
import * as net from "net";
import { DidChangeConfigurationNotification, LanguageClientOptions } from "vscode-languageclient";
import { LanguageClient, ServerOptions, StreamInfo } from "vscode-languageclient/node";
import { apiManager } from "./apiManager";
import { ClientErrorHandler } from "./clientErrorHandler";
import { ClientStatus } from "./extension.api";
import { logger } from "./log";
import { OutputInfoCollector } from "./outputInfoCollector";
import { StatusNotification } from "./protocol";
import { RequirementsData } from "./requirements";
import { ServerMode } from "./settings";
import { snippetCompletionProvider } from "./snippetCompletionProvider";
import { getJavaConfig } from "./utils";
const extensionName = "Language Support for Java (Syntax Server)";
export class SyntaxLanguageClient {
private languageClient: LanguageClient;
private status: ClientStatus = ClientStatus.uninitialized;
public initialize(requirements: RequirementsData, clientOptions: LanguageClientOptions, serverOptions?: ServerOptions) {
const newClientOptions: LanguageClientOptions = Object.assign({}, clientOptions, {
middleware: {
workspace: {
didChangeConfiguration: async () => {
await this.languageClient.sendNotification(DidChangeConfigurationNotification.type, {
settings: {
java: getJavaConfig(requirements.java_home),
}
});
}
}
},
errorHandler: new ClientErrorHandler(extensionName),
initializationFailedHandler: error => {
logger.error(`Failed to initialize ${extensionName} due to ${error && error.toString()}`);
return true;
},
outputChannel: new OutputInfoCollector(extensionName),
outputChannelName: extensionName
});
const lsPort = process.env['SYNTAXLS_CLIENT_PORT'];
if (!serverOptions && lsPort) {
serverOptions = () => {
const socket = net.connect(lsPort);
const result: StreamInfo = {
writer: socket,
reader: socket
};
return Promise.resolve(result);
};
}
if (serverOptions) {
this.languageClient = new LanguageClient('java', extensionName, serverOptions, newClientOptions);
}
this.status = ClientStatus.initialized;
}
public registerSyntaxClientActions(serverOptions?: ServerOptions): void {
// TODO: Currently only resolve the promise when the server mode is explicitly set to lightweight.
// This is to avoid breakings
if (serverOptions) {
this.languageClient.onNotification(StatusNotification.type, (report) => {
switch (report.type) {
case 'Started':
this.status = ClientStatus.started;
apiManager.updateStatus(ClientStatus.started);
// Disable the client-side snippet provider since LS is ready.
snippetCompletionProvider.dispose();
break;
case 'Error':
this.status = ClientStatus.error;
apiManager.updateStatus(ClientStatus.error);
break;
default:
break;
}
if (apiManager.getApiInstance().serverMode === ServerMode.lightWeight) {
apiManager.fireDidServerModeChange(ServerMode.lightWeight);
}
});
}
}
public start(): Promise<void> {
if (this.languageClient) {
this.status = ClientStatus.starting;
return this.languageClient.start();
}
}
public stop(): Promise<void> {
this.status = ClientStatus.stopping;
if (this.languageClient) {
try {
return this.languageClient.stop();
} finally {
this.languageClient = null;
}
}
return Promise.resolve();
}
public isAlive(): boolean {
return !!this.languageClient && this.status !== ClientStatus.stopping;
}
public getClient(): LanguageClient {
return this.languageClient;
}
}