56 lines
2.1 KiB
Go
56 lines
2.1 KiB
Go
/*
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* Copyright 2024 CloudWeGo Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package document
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import (
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"context"
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"github.com/cloudwego/eino/schema"
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)
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// Source identifies the external location of a document.
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// URI can be a local file path or a remote URL reachable by the loader.
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type Source struct {
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URI string
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}
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//go:generate mockgen -destination ../../internal/mock/components/document/document_mock.go --package document -source interface.go
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// Loader reads raw content from an external source and returns it as a slice
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// of [schema.Document] values.
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//
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// The Source.URI may be a local file path or a remote URL. The loader is
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// responsible for fetching the raw bytes; actual format parsing is typically
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// delegated to a [parser.Parser] configured on the loader via
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// [WithParserOptions].
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//
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// Document metadata ([schema.Document].MetaData) should be populated with at
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// least the source URI so that downstream nodes can trace document provenance.
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type Loader interface {
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Load(ctx context.Context, src Source, opts ...LoaderOption) ([]*schema.Document, error)
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}
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// Transformer converts a slice of [schema.Document] values into another slice,
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// applying operations such as splitting, filtering, merging, or re-ranking.
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//
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// Implementations should preserve existing MetaData keys and merge rather than
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// replace when adding their own metadata. Downstream nodes (e.g. Indexer,
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// Retriever) may depend on metadata set by earlier pipeline stages.
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type Transformer interface {
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Transform(ctx context.Context, src []*schema.Document, opts ...TransformerOption) ([]*schema.Document, error)
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}
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