dtamind-components
Version:
DTAmindai Components
238 lines • 10.9 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const lodash_1 = require("lodash");
const text_1 = require("langchain/document_loaders/fs/text");
const directory_1 = require("langchain/document_loaders/fs/directory");
const json_1 = require("langchain/document_loaders/fs/json");
const csv_1 = require("@langchain/community/document_loaders/fs/csv");
const pdf_1 = require("@langchain/community/document_loaders/fs/pdf");
const docx_1 = require("@langchain/community/document_loaders/fs/docx");
const ExcelLoader_1 = require("../MicrosoftExcel/ExcelLoader");
const PowerpointLoader_1 = require("../MicrosoftPowerpoint/PowerpointLoader");
const utils_1 = require("../../../src/utils");
class Folder_DocumentLoaders {
constructor() {
this.label = 'Folder with Files';
this.name = 'folderFiles';
this.version = 4.0;
this.type = 'Document';
this.icon = 'folder.svg';
this.category = 'Document Loaders';
this.description = `Load data from folder with multiple files`;
this.baseClasses = [this.type];
this.inputs = [
{
label: 'Folder Path',
name: 'folderPath',
type: 'string',
placeholder: ''
},
{
label: 'Recursive',
name: 'recursive',
type: 'boolean',
additionalParams: false
},
{
label: 'Text Splitter',
name: 'textSplitter',
type: 'TextSplitter',
optional: true
},
{
label: 'Pdf Usage',
name: 'pdfUsage',
type: 'options',
description: 'Only when loading PDF files',
options: [
{
label: 'One document per page',
name: 'perPage'
},
{
label: 'One document per file',
name: 'perFile'
}
],
default: 'perPage',
optional: true,
additionalParams: true
},
{
label: 'JSONL Pointer Extraction',
name: 'pointerName',
type: 'string',
description: 'Only when loading JSONL files',
placeholder: '<pointerName>',
optional: true,
additionalParams: true
},
{
label: 'Additional Metadata',
name: 'metadata',
type: 'json',
description: 'Additional metadata to be added to the extracted documents',
optional: true,
additionalParams: true
},
{
label: 'Omit Metadata Keys',
name: 'omitMetadataKeys',
type: 'string',
rows: 4,
description: 'Each document loader comes with a default set of metadata keys that are extracted from the document. You can use this field to omit some of the default metadata keys. The value should be a list of keys, seperated by comma. Use * to omit all metadata keys execept the ones you specify in the Additional Metadata field',
placeholder: 'key1, key2, key3.nestedKey1',
optional: true,
additionalParams: true
}
];
this.outputs = [
{
label: 'Document',
name: 'document',
description: 'Array of document objects containing metadata and pageContent',
baseClasses: [...this.baseClasses, 'json']
},
{
label: 'Text',
name: 'text',
description: 'Concatenated string from pageContent of documents',
baseClasses: ['string', 'json']
}
];
}
async init(nodeData) {
const textSplitter = nodeData.inputs?.textSplitter;
const folderPath = nodeData.inputs?.folderPath;
const metadata = nodeData.inputs?.metadata;
const recursive = nodeData.inputs?.recursive;
const pdfUsage = nodeData.inputs?.pdfUsage;
const pointerName = nodeData.inputs?.pointerName;
const _omitMetadataKeys = nodeData.inputs?.omitMetadataKeys;
const output = nodeData.outputs?.output;
let omitMetadataKeys = [];
if (_omitMetadataKeys) {
omitMetadataKeys = _omitMetadataKeys.split(',').map((key) => key.trim());
}
const loader = new directory_1.DirectoryLoader(folderPath, {
'.json': (path) => new json_1.JSONLoader(path),
'.jsonl': (blob) => new json_1.JSONLinesLoader(blob, '/' + pointerName.trim()),
'.txt': (path) => new text_1.TextLoader(path),
'.csv': (path) => new csv_1.CSVLoader(path),
'.xls': (path) => new ExcelLoader_1.LoadOfSheet(path),
'.xlsx': (path) => new ExcelLoader_1.LoadOfSheet(path),
'.xlsm': (path) => new ExcelLoader_1.LoadOfSheet(path),
'.xlsb': (path) => new ExcelLoader_1.LoadOfSheet(path),
'.doc': (path) => new docx_1.DocxLoader(path),
'.docx': (path) => new docx_1.DocxLoader(path),
'.ppt': (path) => new PowerpointLoader_1.PowerpointLoader(path),
'.pptx': (path) => new PowerpointLoader_1.PowerpointLoader(path),
'.pdf': (path) => pdfUsage === 'perFile'
? // @ts-ignore
new pdf_1.PDFLoader(path, { splitPages: false, pdfjs: () => Promise.resolve().then(() => __importStar(require('pdf-parse/lib/pdf.js/v1.10.100/build/pdf.js'))) })
: // @ts-ignore
new pdf_1.PDFLoader(path, { pdfjs: () => Promise.resolve().then(() => __importStar(require('pdf-parse/lib/pdf.js/v1.10.100/build/pdf.js'))) }),
'.aspx': (path) => new text_1.TextLoader(path),
'.asp': (path) => new text_1.TextLoader(path),
'.cpp': (path) => new text_1.TextLoader(path), // C++
'.c': (path) => new text_1.TextLoader(path),
'.cs': (path) => new text_1.TextLoader(path),
'.css': (path) => new text_1.TextLoader(path),
'.go': (path) => new text_1.TextLoader(path), // Go
'.h': (path) => new text_1.TextLoader(path), // C++ Header files
'.kt': (path) => new text_1.TextLoader(path), // Kotlin
'.java': (path) => new text_1.TextLoader(path), // Java
'.js': (path) => new text_1.TextLoader(path), // JavaScript
'.less': (path) => new text_1.TextLoader(path), // Less files
'.ts': (path) => new text_1.TextLoader(path), // TypeScript
'.php': (path) => new text_1.TextLoader(path), // PHP
'.proto': (path) => new text_1.TextLoader(path), // Protocol Buffers
'.python': (path) => new text_1.TextLoader(path), // Python
'.py': (path) => new text_1.TextLoader(path), // Python
'.rst': (path) => new text_1.TextLoader(path), // reStructuredText
'.ruby': (path) => new text_1.TextLoader(path), // Ruby
'.rb': (path) => new text_1.TextLoader(path), // Ruby
'.rs': (path) => new text_1.TextLoader(path), // Rust
'.scala': (path) => new text_1.TextLoader(path), // Scala
'.sc': (path) => new text_1.TextLoader(path), // Scala
'.scss': (path) => new text_1.TextLoader(path), // Sass
'.sol': (path) => new text_1.TextLoader(path), // Solidity
'.sql': (path) => new text_1.TextLoader(path), //SQL
'.swift': (path) => new text_1.TextLoader(path), // Swift
'.markdown': (path) => new text_1.TextLoader(path), // Markdown
'.md': (path) => new text_1.TextLoader(path), // Markdown
'.tex': (path) => new text_1.TextLoader(path), // LaTeX
'.ltx': (path) => new text_1.TextLoader(path), // LaTeX
'.html': (path) => new text_1.TextLoader(path), // HTML
'.vb': (path) => new text_1.TextLoader(path), // Visual Basic
'.xml': (path) => new text_1.TextLoader(path) // XML
}, recursive);
let docs = [];
if (textSplitter) {
docs = await loader.load();
docs = await textSplitter.splitDocuments(docs);
}
else {
docs = await loader.load();
}
if (metadata) {
const parsedMetadata = typeof metadata === 'object' ? metadata : JSON.parse(metadata);
docs = docs.map((doc) => ({
...doc,
metadata: _omitMetadataKeys === '*'
? {
...parsedMetadata
}
: (0, lodash_1.omit)({
...doc.metadata,
...parsedMetadata
}, omitMetadataKeys)
}));
}
else {
docs = docs.map((doc) => ({
...doc,
metadata: _omitMetadataKeys === '*'
? {}
: (0, lodash_1.omit)({
...doc.metadata
}, omitMetadataKeys)
}));
}
if (output === 'document') {
return docs;
}
else {
let finaltext = '';
for (const doc of docs) {
finaltext += `${doc.pageContent}\n`;
}
return (0, utils_1.handleEscapeCharacters)(finaltext, false);
}
}
}
module.exports = { nodeClass: Folder_DocumentLoaders };
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