@opensumi/ide-connection NPM

通信模块(connection)

基于 sumi rpc 完成多端远程调用场景，兼容 lsp 等通信方式

框架中服务分为运行在浏览器环境的前端服务(frontService) 与运行在 node 环境的后端服务(backService)，服务在两端的实现方式是一致的
目前在 tools/dev-tool 中的启动逻辑中完成了服务的注册和获取逻辑，在具体功能模块中无需关心具体的通信注册获取逻辑

后端服务(backService) 后端服务(backService) 即在 Web Server 暴露的能力，类似 web 应用框架中 controller 提供的请求响应逻辑

注册服务

packages/file-service/src/node/index.ts

import { FileSystemNodeOptions, FileService } from './file-service';
import { servicePath } from '../common/index';

export class FileServiceModule extends NodeModule {
  providers = [{ token: 'FileServiceOptions', useValue: FileSystemNodeOptions.DEFAULT }];

  backServices = [
    {
      servicePath,
      token: FileService,
    },
  ];
}

例如在 file-service 模块中，通过定义 backServices 数组，传递模块提供的后端服务，servicePath 为前端模块引用的服务地址，以及对应服务的注入 token

服务调用

packages/file-tree/src/browser/index.ts

import { servicePath as FileServicePath } from '@opensumi/ide-file-service';

@Injectable()
export class FileTreeModule extends BrowserModule {
  providers: Provider[] = [createFileTreeAPIProvider(FileTreeAPIImpl)];
  backServices = [
    {
      servicePath: FileServicePath,
    },
  ];
}

例如在 file-tree 模块中，首先在模块入口位置声明需要用到的 backServices，传入引用的服务 servicePath，与服务注册时的 servicePath 一致

packages/file-tree/src/browser/file-tree.service.ts

import {servicePath as FileServicePath} from '@opensumi/ide-file-service';

@Injectable()
export default class FileTreeService extends Disposable {

  @observable.shallow
  files: CloudFile[] = [];

  @Autowired()
  private fileAPI: FileTreeAPI;

  @Autowired(CommandService)
  private commandService: CommandService;

  constructor(@Inject(FileServicePath) protected readonly fileService) {
    super();

    this.getFiles();
  }
   createFile = async () => {
    const {content} = await this.fileService.resolveContent('{file_path}');
    const file = await this.fileAPI.createFile({
      name: 'name' + Date.now() + '\n' + content,
      path: 'path' + Date.now(),
    });

    // 只会执行注册在 Module 里声明的 Contribution
    this.commandService.executeCommand('file.tree.console');

    if (this.files) {
      this.files.push(file);
    } else {
      this.files = [file];
    }
  }
}

在 file-tree.service.ts 中通过 servicePath 进行注入，并直接调用在服务类上的方法

constructor(@Inject(FileServicePath) protected readonly fileService) {
    super();

    this.getFiles();
  }

方法调用会转换成一个远程调用进行响应，返回结果

const { content } = await this.fileService.resolveContent('{file_path}');

前端服务(frontService) 后端服务(backService) 即在 Browser 环境下运行的代码暴露的能力

注册服务

packages/file-ree/src/browser/index.ts

@Injectable()
export class FileTreeModule extends BrowserModule {
  providers: Provider[] = [createFileTreeAPIProvider(FileTreeAPIImpl)];
  backServices = [
    {
      servicePath: FileServicePath,
    },
  ];
  frontServices = [
    {
      servicePath: FileTreeServicePath,
      token: FileTreeService,
    },
  ];
}

与后端服务注册类似，例如在 file-tree 模块中声明 frontServices 字段，传入对应的服务地址 servicePath 和对应服务的注入 token

服务使用

packages/file-service/src/node/index.ts

import { servicePath as FileTreeServicePath } from '@opensumi/ide-file-tree';

@Injectable()
export class FileServiceModule extends NodeModule {
  providers = [{ token: 'FileServiceOptions', useValue: FileSystemNodeOptions.DEFAULT }];

  backServices = [
    {
      servicePath,
      token: FileService,
    },
  ];
  frontServices = [
    {
      servicePath: FileTreeServicePath,
    },
  ];
}

与使用后端服务一致，在模块定义中声明需要使用的前端服务 frontServices，传入前端服务注册时用的 servicePath 一致

packages/file-service/src/node/file-service.ts

@Injectable()
export class FileService implements IFileService {

  constructor(
    @Inject('FileServiceOptions') protected readonly options: FileSystemNodeOptions,
    @Inject(FileTreeServicePath) protected readonly fileTreeService
  ) { }

  async resolveContent(uri: string, options?: { encoding?: string }): Promise<{ stat: FileStat, content: string }> {
    const fileTree = await this.fileTreeService
    fileTree.fileName(uri.substr(-5))

    ...
    return { stat, content };
  }

与使用后端服务使用方式一致，在 file-service.ts 中通过 servicePath 进行注入，通过调用注入服务的对应方法

  constructor(
    @Inject('FileServiceOptions') protected readonly options: FileSystemNodeOptions,
    @Inject(FileTreeServicePath) protected readonly fileTreeService
  ) { }

方法调用会转换成一个远程调用进行响应，返回结果

const fileTree = await this.fileTreeService;
fileTree.fileName(uri.substr(-5));

与后端服务调用区别的是，目前因前端代码后置执行，所以首先需要获取服务 await this.fileTreeService 后进行调用

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通信模块(connection)

opensumi 中使用