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import { INode, INodeData, INodeParams } from '../../../src/Interface'
import { getBaseClasses } from '../../../src/utils'
import { RecursiveCharacterTextSplitter, RecursiveCharacterTextSplitterParams } from 'langchain/text_splitter'
class RecursiveCharacterTextSplitter_TextSplitters implements INode {
label: string
name: string
description: string
type: string
icon: string
category: string
baseClasses: string[]
inputs: INodeParams[]
constructor() {
this.label = 'Recursive Character Text Splitter'
this.name = 'recursiveCharacterTextSplitter'
this.type = 'RecursiveCharacterTextSplitter'
this.icon = 'textsplitter.svg'
this.category = 'Text Splitters'
this.description = `Split documents recursively by different characters - starting with "\\n\\n", then "\\n", then " "`
this.baseClasses = [this.type, ...getBaseClasses(RecursiveCharacterTextSplitter)]
this.inputs = [
{
label: 'Chunk Size',
name: 'chunkSize',
type: 'number',
default: 1000,
optional: true
},
{
label: 'Chunk Overlap',
name: 'chunkOverlap',
type: 'number',
optional: true
}
]
}
async init(nodeData: INodeData): Promise<any> {
const chunkSize = nodeData.inputs?.chunkSize as string
const chunkOverlap = nodeData.inputs?.chunkOverlap as string
const obj = {} as RecursiveCharacterTextSplitterParams
if (chunkSize) obj.chunkSize = parseInt(chunkSize, 10)
if (chunkOverlap) obj.chunkOverlap = parseInt(chunkOverlap, 10)
const splitter = new RecursiveCharacterTextSplitter(obj)
return splitter
}
}
module.exports = { nodeClass: RecursiveCharacterTextSplitter_TextSplitters }
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