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https://github.com/trustgraph-ai/trustgraph.git
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d886358be6
* Entities and triples are emitted in batches with a batch limit to manage overloading downstream. * Update tests
110 lines
2.7 KiB
Python
Executable file
110 lines
2.7 KiB
Python
Executable file
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"""
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Graph embeddings, calls the embeddings service to get embeddings for a
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set of entity contexts. Input is entity plus textual context.
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Output is entity plus embedding.
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"""
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from ... schema import EntityContexts, EntityEmbeddings, GraphEmbeddings
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from ... schema import EmbeddingsRequest, EmbeddingsResponse
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from ... base import FlowProcessor, EmbeddingsClientSpec, ConsumerSpec
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from ... base import ProducerSpec
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import logging
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logger = logging.getLogger(__name__)
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default_ident = "graph-embeddings"
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default_batch_size = 5
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class Processor(FlowProcessor):
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def __init__(self, **params):
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id = params.get("id")
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self.batch_size = params.get("batch_size", default_batch_size)
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super(Processor, self).__init__(
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**params | {
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"id": id,
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}
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)
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self.register_specification(
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ConsumerSpec(
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name = "input",
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schema = EntityContexts,
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handler = self.on_message,
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)
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)
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self.register_specification(
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EmbeddingsClientSpec(
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request_name = "embeddings-request",
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response_name = "embeddings-response",
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)
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)
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self.register_specification(
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ProducerSpec(
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name = "output",
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schema = GraphEmbeddings
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)
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)
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async def on_message(self, msg, consumer, flow):
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v = msg.value()
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logger.info(f"Indexing {v.metadata.id}...")
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entities = []
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try:
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for entity in v.entities:
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vectors = await flow("embeddings-request").embed(
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text = entity.context
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)
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entities.append(
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EntityEmbeddings(
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entity=entity.entity,
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vectors=vectors
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)
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)
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# Send in batches to avoid oversized messages
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for i in range(0, len(entities), self.batch_size):
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batch = entities[i:i + self.batch_size]
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r = GraphEmbeddings(
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metadata=v.metadata,
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entities=batch,
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)
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await flow("output").send(r)
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except Exception as e:
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logger.error("Exception occurred", exc_info=True)
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# Retry
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raise e
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logger.info("Done.")
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@staticmethod
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def add_args(parser):
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parser.add_argument(
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'--batch-size',
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type=int,
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default=default_batch_size,
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help=f'Maximum entities per output message (default: {default_batch_size})'
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)
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FlowProcessor.add_args(parser)
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def run():
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Processor.launch(default_ident, __doc__)
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