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[Feature] improve CsvLoader & clean code (#3830)

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* Improve CSV Loader

* Improve S3 Loaders

---------

Co-authored-by: Henry <hzj94@hotmail.com>
This commit is contained in:
Jérémy JOURDIN
2025-01-14 17:47:04 +01:00
committed by GitHub
parent cc87d85675
commit 24eb437bad
7 changed files with 230 additions and 207 deletions
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packages/components/nodes/documentloaders/S3File/S3File.ts
+12 -53
View File
@@ -1,4 +1,3 @@
import { omit } from 'lodash'
import { ICommonObject, INode, INodeData, INodeOptionsValue, INodeOutputsValue, INodeParams } from '../../../src/Interface'
import { S3Loader } from '@langchain/community/document_loaders/web/s3'
import {
@@ -8,7 +7,13 @@ import {
SkipInferTableTypes,
HiResModelName
} from '@langchain/community/document_loaders/fs/unstructured'
import { getCredentialData, getCredentialParam, handleEscapeCharacters } from '../../../src/utils'
import {
getCredentialData,
getCredentialParam,
handleDocumentLoaderDocuments,
handleDocumentLoaderMetadata,
handleDocumentLoaderOutput
} from '../../../src/utils'
import { S3Client, GetObjectCommand, S3ClientConfig } from '@aws-sdk/client-s3'
import { getRegions, MODEL_TYPE } from '../../../src/modelLoader'
import { Readable } from 'node:stream'
@@ -483,11 +488,6 @@ class S3_DocumentLoaders implements INode {
const _omitMetadataKeys = nodeData.inputs?.omitMetadataKeys as string
const output = nodeData.outputs?.output as string
let omitMetadataKeys: string[] = []
if (_omitMetadataKeys) {
omitMetadataKeys = _omitMetadataKeys.split(',').map((key) => key.trim())
}
let credentials: S3ClientConfig['credentials'] | undefined
if (nodeData.credential) {
@@ -572,56 +572,15 @@ class S3_DocumentLoaders implements INode {
const unstructuredLoader = new UnstructuredLoader(filePath, obj)
let docs = await unstructuredLoader.load()
let docs = await handleDocumentLoaderDocuments(unstructuredLoader)
if (metadata) {
const parsedMetadata = typeof metadata === 'object' ? metadata : JSON.parse(metadata)
docs = docs.map((doc) => ({
...doc,
metadata:
_omitMetadataKeys === '*'
? {
...parsedMetadata
}
: omit(
{
...doc.metadata,
...parsedMetadata,
[sourceIdKey]: doc.metadata[sourceIdKey] || sourceIdKey
},
omitMetadataKeys
)
}))
} else {
docs = docs.map((doc) => ({
...doc,
metadata:
_omitMetadataKeys === '*'
? {}
: omit(
{
...doc.metadata,
[sourceIdKey]: doc.metadata[sourceIdKey] || sourceIdKey
},
omitMetadataKeys
)
}))
}
docs = handleDocumentLoaderMetadata(docs, _omitMetadataKeys, metadata, sourceIdKey)
fsDefault.rmSync(path.dirname(filePath), { recursive: true })
if (output === 'document') {
return docs
} else {
let finaltext = ''
for (const doc of docs) {
finaltext += `${doc.pageContent}\n`
}
return handleEscapeCharacters(finaltext, false)
}
return handleDocumentLoaderOutput(docs, output)
} catch {
fsDefault.rmSync(path.dirname(filePath), { recursive: true })
throw new Error(`Failed to load file ${filePath} using unstructured loader.`)
} finally {
fsDefault.rmSync(path.dirname(filePath), { recursive: true })
}
}