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AbstractAdapter.ts
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AbstractAdapter.ts
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import { AdapterConfig, IAdapter, Options, StreamOptions } from "./types/general";
import { FileBufferParams, FilePathParams, FileStreamParams } from "./types/add_file_params";
import {
ResultObject,
ResultObjectBoolean,
ResultObjectBuckets,
ResultObjectFiles,
ResultObjectNumber,
ResultObjectStream,
} from "./types/result";
export abstract class AbstractAdapter implements IAdapter {
protected _type = "abstract-adapter";
protected _config: AdapterConfig | null;
protected _configError: string | null = null;
protected _bucketName: string = null;
protected _client: any = null; // eslint-disable-line
constructor(config: string | AdapterConfig) {}
get type(): string {
return this._type;
}
getType(): string {
return this.type;
}
get config(): AdapterConfig {
return this._config;
}
getConfig(): AdapterConfig {
return this.config;
}
get configError(): string {
return this._configError;
}
getConfigError(): string {
return this.configError;
}
// eslint-disable-next-line
get serviceClient(): any {
return this._client;
}
// eslint-disable-next-line
getServiceClient(): any {
return this._client;
}
setSelectedBucket(bucketName: string | null) {
this._bucketName = bucketName;
}
getSelectedBucket(): string | null {
return this._bucketName;
}
set(bucketName: string | null) {
this._bucketName = bucketName;
}
get bucketName(): string | null {
return this._bucketName;
}
async addFileFromPath(params: FilePathParams): Promise<ResultObject> {
return await this.addFile(params);
}
async addFileFromBuffer(params: FileBufferParams): Promise<ResultObject> {
return await this.addFile(params);
}
async addFileFromStream(params: FileStreamParams): Promise<ResultObject> {
return await this.addFile(params);
}
protected _getFileAndBucket(
arg1: string,
arg2?: string
): { bucketName: string; fileName: string; error: string } {
let bucketName: string = null;
let fileName: string = null;
if (typeof arg2 === "string") {
bucketName = arg1;
fileName = arg2;
} else if (typeof arg2 === "undefined") {
fileName = arg1;
if (this._bucketName === null) {
return {
bucketName,
fileName,
error: "no bucket selected",
};
}
bucketName = this._bucketName;
}
return {
bucketName,
fileName,
error: null,
};
}
// protected stubs
protected abstract _clearBucket(name: string): Promise<ResultObject>;
protected abstract _deleteBucket(name: string): Promise<ResultObject>;
protected abstract _bucketExists(name: string): Promise<ResultObjectBoolean>;
protected abstract _listFiles(bucketName: string, numFiles: number): Promise<ResultObjectFiles>;
protected abstract _sizeOf(bucketName: string, fileName: string): Promise<ResultObjectNumber>;
protected abstract _addFile(
params: FilePathParams | FileBufferParams | FileStreamParams
): Promise<ResultObject>;
protected abstract _fileExists(
bucketName: string,
fileName: string
): Promise<ResultObjectBoolean>;
protected abstract _getFileAsStream(
bucketName: string,
fileName: string,
options: StreamOptions
): Promise<ResultObjectStream>;
protected abstract _getFileAsURL(
bucketName: string,
fileName: string,
options: Options // e.g. { expiresIn: 3600 }
): Promise<ResultObject>;
protected abstract _removeFile(
bucketName: string,
fileName: string,
allVersions: boolean
): Promise<ResultObject>;
// public stubs
abstract listBuckets(): Promise<ResultObjectBuckets>;
abstract createBucket(name: string, options?: Options): Promise<ResultObject>;
// public
public async clearBucket(name?: string): Promise<ResultObject> {
if (this._configError !== null) {
return { value: null, error: this.configError };
}
if (typeof name === "undefined") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
name = this._bucketName;
}
return this._clearBucket(name);
}
public async deleteBucket(name?: string): Promise<ResultObject> {
if (this._configError !== null) {
return { value: null, error: this.configError };
}
if (typeof name === "undefined") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
name = this._bucketName;
}
return this._deleteBucket(name);
}
public async bucketExists(name?: string): Promise<ResultObjectBoolean> {
if (this._configError !== null) {
return { value: null, error: this.configError };
}
if (typeof name === "undefined") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
name = this._bucketName;
}
return this._bucketExists(name);
}
public async listFiles(bucketName: string, numFiles?: number): Promise<ResultObjectFiles>;
public async listFiles(numFiles?: number): Promise<ResultObjectFiles>;
public async listFiles(arg1?: number | string, arg2?: number): Promise<ResultObjectFiles> {
if (this._configError !== null) {
return { value: null, error: this.configError };
}
let bucketName: string;
let numFiles: number = 10000;
if (typeof arg1 === "number") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
bucketName = this._bucketName;
numFiles = arg1;
} else if (typeof arg1 === "string") {
bucketName = arg1;
if (typeof arg2 === "number") {
numFiles = arg2;
}
} else {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
bucketName = this._bucketName;
}
return this._listFiles(bucketName, numFiles);
}
public async addFile(
params: FilePathParams | FileBufferParams | FileStreamParams
): Promise<ResultObject> {
if (this._configError !== null) {
return { value: null, error: this.configError };
}
if (typeof params.bucketName === "undefined") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
params.bucketName = this._bucketName;
}
if (typeof params.options !== "object") {
params.options = {};
}
return this._addFile(params);
}
public async getFileAsStream(
bucketName: string,
fileName: string,
options?: StreamOptions
): Promise<ResultObjectStream>;
public async getFileAsStream(
fileName: string,
options?: StreamOptions
): Promise<ResultObjectStream>;
public async getFileAsStream(
arg1: string,
arg2?: StreamOptions | string,
arg3?: StreamOptions
): Promise<ResultObjectStream> {
if (this.configError !== null) {
return { error: this.configError, value: null };
}
let bucketName: string;
let fileName: string;
let options: StreamOptions = {};
if (typeof arg1 === "string" && typeof arg2 === "string") {
bucketName = arg1;
fileName = arg2;
if (typeof arg3 !== "undefined") {
options = arg3;
}
} else if (typeof arg1 === "string" && typeof arg2 !== "string") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
bucketName = this._bucketName;
fileName = arg1;
if (typeof arg2 !== "undefined") {
options = arg2;
}
}
return this._getFileAsStream(bucketName, fileName, options);
}
public async getFileAsURL(
bucketName: string,
fileName: string,
options?: Options // e.g. { expiresIn: 3600 }
): Promise<ResultObject>;
public async getFileAsURL(fileName: string, options?: Options): Promise<ResultObject>;
public async getFileAsURL(
arg1: string,
arg2?: Options | string,
arg3?: Options
): Promise<ResultObject> {
if (this._configError !== null) {
return { value: null, error: this.configError };
}
let bucketName: string;
let fileName: string;
let options: Options = {};
if (typeof arg1 === "string" && typeof arg2 === "string") {
bucketName = arg1;
fileName = arg2;
if (typeof arg3 !== "undefined") {
options = arg3;
}
} else if (typeof arg1 === "string" && typeof arg2 !== "string") {
if (this._bucketName === null) {
return {
value: null,
error: "no bucket selected",
};
}
bucketName = this._bucketName;
fileName = arg1;
if (typeof arg2 !== "undefined") {
options = arg2;
}
}
return this._getFileAsURL(bucketName, fileName, options);
}
public async sizeOf(bucketName: string, fileName: string): Promise<ResultObjectNumber>;
public async sizeOf(fileName: string): Promise<ResultObjectNumber>;
public async sizeOf(arg1: string, arg2?: string): Promise<ResultObjectNumber> {
if (this.configError !== null) {
return { value: null, error: this.configError };
}
const { bucketName, fileName, error } = this._getFileAndBucket(arg1, arg2);
if (error !== null) {
return { value: null, error };
}
return this._sizeOf(bucketName, fileName);
}
public async fileExists(bucketName: string, fileName: string): Promise<ResultObjectBoolean>;
public async fileExists(fileName: string): Promise<ResultObjectBoolean>;
public async fileExists(arg1: string, arg2?: string): Promise<ResultObjectBoolean> {
if (this.configError !== null) {
return { value: null, error: this.configError };
}
const { bucketName, fileName, error } = this._getFileAndBucket(arg1, arg2);
if (error !== null) {
return { value: null, error };
}
return this._fileExists(bucketName, fileName);
}
public async removeFile(
bucketName: string,
fileName: string,
allVersions?: boolean
): Promise<ResultObject>;
public async removeFile(fileName: string, allVersions?: boolean): Promise<ResultObject>;
public async removeFile(
arg1: string,
arg2?: boolean | string,
arg3?: boolean
): Promise<ResultObject> {
if (this.configError !== null) {
return { value: null, error: this.configError };
}
let bucketName: string;
let fileName: string;
let allVersions: boolean = false;
if (typeof arg1 === "string" && typeof arg2 === "string") {
bucketName = arg1;
fileName = arg2;
if (typeof arg3 === "boolean") {
allVersions = arg3;
}
} else if (typeof arg1 === "string" && typeof arg2 !== "string") {
if (this._bucketName === null) {
return {
value: null,
error: "No bucket selected",
};
}
bucketName = this._bucketName;
fileName = arg1;
if (typeof arg2 === "boolean") {
allVersions = arg2;
}
}
return this._removeFile(bucketName, fileName, allVersions);
}
}