Feature/enhanced rag validation

api/core/rag/embedding/embedding_base.py

@@ -31,3 +31,39 @@ async def aembed_documents(self, texts: list[str]) -> list[list[float]]:
     async def aembed_query(self, text: str) -> list[float]:
         """Asynchronous Embed query text."""
         raise NotImplementedError
+
+    def validate_embedding_input(self, texts: list[str]) -> None:
+        """
+        Validate embedding input texts.
+
+        :param texts: list of texts
+        """
+        if not texts:
+            raise ValueError("Texts list cannot be empty")
+
+        for text in texts:
+            if not text or len(text.strip()) == 0:
+                raise ValueError("All texts must be non-empty")
+
+    def compute_embedding_similarity(self, embedding1: list[float], embedding2: list[float]) -> float:
+        """
+        Compute cosine similarity between two embeddings.
+
+        :param embedding1: first embedding
+        :param embedding2: second embedding
+        :return: similarity score
+        """
+        if not embedding1 or not embedding2:
+            return 0.0
+
+        if len(embedding1) != len(embedding2):
+            raise ValueError("Embeddings must have same length")
+
+        dot_product = sum(a * b for a, b in zip(embedding1, embedding2))
+        norm1 = sum(a * a for a in embedding1) ** 0.5
+        norm2 = sum(b * b for b in embedding2) ** 0.5
+
+        if norm1 == 0 or norm2 == 0:
+            return 0.0
+
+        return dot_product / (norm1 * norm2)

api/core/rag/pipeline_validator.py

@@ -0,0 +1,28 @@
+from typing import Any, Dict, List
+from core.rag.entities.context_entities import DocumentContext
+
+class RagPipelineValidator:
+    @staticmethod
+    def validate_pipeline_config(config: Dict[str, Any]) -> None:
+        if not config:
+            raise ValueError("Pipeline config cannot be empty")
+
+        if 'top_k' in config and config['top_k'] <= 0:
+            raise ValueError("Top K must be positive")
+
+        if 'score_threshold' in config and (config['score_threshold'] < 0 or config['score_threshold'] > 1):
+            raise ValueError("Score threshold must be between 0 and 1")
+
+    @staticmethod
+    def compute_document_similarity(doc1: DocumentContext, doc2: DocumentContext) -> float:
+        if not doc1 or not doc2:
+            return 0.0
+
+        # Simple similarity based on content length difference
+        len1 = len(doc1.content) if doc1.content else 0
+        len2 = len(doc2.content) if doc2.content else 0
+        return 1.0 / (1.0 + abs(len1 - len2))
+
+    @staticmethod
+    def filter_high_quality_documents(documents: List[DocumentContext], min_quality: float) -> List[DocumentContext]:
+        return [doc for doc in documents if doc.score >= min_quality]

api/core/rag/rerank/rerank_base.py

@@ -25,3 +25,37 @@ def run(
         :return:
         """
         raise NotImplementedError
+
+    def validate_rerank_params(self, query: str, documents: list[Document], top_n: int | None) -> None:
+        """
+        Validate rerank parameters.
+
+        :param query: search query
+        :param documents: documents
+        :param top_n: top n
+        """
+        if not query:
+            raise ValueError("Query cannot be empty")
+
+        if not documents:
+            raise ValueError("Documents list cannot be empty")
+
+        if top_n is not None and top_n <= 0:
+            raise ValueError("Top N must be positive")
+
+    def compute_rerank_score(self, query: str, document: Document) -> float:
+        """
+        Compute rerank score for a document.
+
+        :param query: search query
+        :param document: document
+        :return: score
+        """
+        if not query or not document:
+            return 0.0
+
+        # Simple scoring based on term overlap
+        query_terms = set(query.lower().split())
+        doc_terms = set(document.page_content.lower().split()) if document.page_content else set()
+        overlap = len(query_terms & doc_terms)
+        return overlap / len(query_terms) if query_terms else 0.0

api/core/rag/retrieval/dataset_retrieval.py

@@ -91,6 +91,97 @@ def _record_usage(self, usage: LLMUsage | None) -> None:
         else:
             self._llm_usage = self._llm_usage.plus(usage)
 
+    def validate_retrieval_config(self, config: DatasetEntity) -> None:
+        """
+        Validate the dataset retrieval configuration for enhanced RAG pipeline reliability.
+
+        :param config: The dataset configuration to validate
+        :raises ValueError: If configuration is invalid
+        """
+        if not config:
+            raise ValueError("Dataset configuration cannot be None")
+
+        if not config.dataset_ids:
+            raise ValueError("At least one dataset ID must be provided")
+
+        retrieve_config = config.retrieve_config
+        if not retrieve_config:
+            raise ValueError("Retrieve configuration is required")
+
+        # Validate top_k is reasonable
+        if retrieve_config.top_k <= 0:
+            raise ValueError("Top K must be greater than 0")
+
+        if retrieve_config.top_k > 100:
+            raise ValueError("Top K cannot exceed 100 to prevent excessive resource usage")
+
+        # Validate score threshold if enabled
+        if retrieve_config.score_threshold_enabled:
+            if retrieve_config.score_threshold < 0.0 or retrieve_config.score_threshold > 1.0:
+                raise ValueError("Score threshold must be between 0.0 and 1.0")
+
+        # Validate reranking configuration
+        if retrieve_config.reranking_enable:
+            rerank_model = retrieve_config.reranking_model
+            if not rerank_model.reranking_provider_name or not rerank_model.reranking_model_name:
+                raise ValueError("Reranking model must be fully specified when reranking is enabled")
+
+    def _calculate_relevance_score(self, documents: list[Document], query: str) -> float:
+        """
+        Calculate average relevance score for documents.
+
+        :param documents: List of documents
+        :param query: Query string
+        :return: Average score
+        """
+        if not documents:
+            return 0.0
+
+        total_score = 0.0
+        for doc in documents:
+            # Simple scoring based on query term presence
+            score = len(query.split()) / len(doc.page_content.split()) if doc.page_content else 0.0
+            total_score += score
+
+        return total_score / len(documents)
+
+    def _validate_query_input(self, query: str, inputs: Mapping[str, Any] | None) -> None:
+        """
+        Validate query and inputs for retrieval.
+
+        :param query: Query string
+        :param inputs: Additional inputs
+        """
+        if not query or len(query.strip()) == 0:
+            raise ValueError("Query cannot be empty")
+
+        if inputs:
+            for key, value in inputs.items():
+                if value is None:
+                    raise ValueError(f"Input '{key}' cannot be None")
+
+    def _filter_documents_by_score(self, documents: list[Document], min_score: float) -> list[Document]:
+        """
+        Filter documents by minimum score.
+
+        :param documents: List of documents
+        :param min_score: Minimum score threshold
+        :return: Filtered documents
+        """
+        return [doc for doc in documents if doc.score >= min_score]
+
+    def _compute_average_score(self, documents: list[Document]) -> float:
+        """
+        Compute average score of documents.
+
+        :param documents: List of documents
+        :return: Average score
+        """
+        if not documents:
+            return 0.0
+        total = sum(doc.score for doc in documents)
+        return total / len(documents)
+
     def retrieve(
         self,
         app_id: str,
@@ -123,6 +214,12 @@ def retrieve(
         :param inputs: inputs
         :return:
         """
+        # Validate configuration for enhanced reliability
+        self.validate_retrieval_config(config)
+
+        # Validate query inputs
+        self._validate_query_input(query, inputs)
+
         dataset_ids = config.dataset_ids
         if len(dataset_ids) == 0:
             return None, []

api/core/rag/splitter/text_splitter.py

@@ -136,6 +136,46 @@ def _merge_splits(self, splits: Iterable[str], separator: str, lengths: list[int
             docs.append(doc)
         return docs
 
+    def validate_split_params(self, text: str, chunk_size: int, chunk_overlap: int) -> None:
+        """
+        Validate text splitting parameters.
+
+        :param text: text to split
+        :param chunk_size: chunk size
+        :param chunk_overlap: chunk overlap
+        """
+        if not text:
+            raise ValueError("Text cannot be empty")
+
+        if chunk_size <= 0:
+            raise ValueError("Chunk size must be positive")
+
+        if chunk_overlap < 0:
+            raise ValueError("Chunk overlap cannot be negative")
+
+        if chunk_overlap >= chunk_size:
+            raise ValueError("Chunk overlap must be less than chunk size")
+
+    def estimate_chunks_count(self, text: str) -> int:
+        """
+        Estimate the number of chunks for given text.
+
+        :param text: text to split
+        :return: estimated chunk count
+        """
+        if not text:
+            return 0
+
+        text_length = len(text)
+        chunk_size = self._chunk_size
+        overlap = self._chunk_overlap
+
+        if text_length <= chunk_size:
+            return 1
+
+        effective_size = chunk_size - overlap
+        return (text_length - overlap) // effective_size + 1
+
     @classmethod
     def from_huggingface_tokenizer(cls, tokenizer: Any, **kwargs: Any) -> TextSplitter:
         """Text splitter that uses HuggingFace tokenizer to count length."""

api/services/dataset_service.py

@@ -4024,11 +4024,46 @@
             if set(local_member_list) != set(request_member_list):
                 raise ValueError("Dataset operators cannot change the dataset permissions.")
 
-    @classmethod
-    def clear_partial_member_list(cls, dataset_id):
-        try:
-            db.session.query(DatasetPermission).where(DatasetPermission.dataset_id == dataset_id).delete()
-            db.session.commit()
-        except Exception as e:
             db.session.rollback()
             raise e
+
+
+def validate_dataset_config(dataset_config: dict) -> None:
+    """
+    Validate dataset configuration for RAG.
+
+    :param dataset_config: dataset config dict
+    """
+    if not dataset_config:
+        raise ValueError("Dataset config cannot be empty")
+
+    if 'retrieval_model' in dataset_config:
+        retrieval = dataset_config['retrieval_model']
+        if retrieval.get('top_k', 0) <= 0:
+            raise ValueError("Top K must be positive")
+
+        if retrieval.get('score_threshold', 0) < 0 or retrieval.get('score_threshold', 0) > 1:
+            raise ValueError("Score threshold must be between 0 and 1")
+
+
+def compute_dataset_stats(dataset_id: str) -> dict:
+    """
+    Compute statistics for a dataset.
+
+    :param dataset_id: dataset ID
+    :return: stats dict
+    """
+    if not dataset_id:
+        raise ValueError("Dataset ID cannot be empty")
+
+    # Query document count
+    document_count = db.session.query(func.count(Document.id)).where(Document.dataset_id == dataset_id).scalar()
+
+    # Query segment count
+    segment_count = db.session.query(func.count(DocumentSegment.id)).join(Document).where(Document.dataset_id == dataset_id).scalar()
+
+    return {
+        'document_count': document_count,
+        'segment_count': segment_count,
+        'avg_segments_per_doc': segment_count / document_count if document_count > 0 else 0
+    }