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4ff79c6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | # SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
#
# SPDX-License-Identifier: Apache-2.0
import logging
from typing import Optional
import haystack.logging as haystack_logging
from haystack.core.component import component
logger = haystack_logging.getLogger(__name__)
@component
class Greet:
"""
Logs a greeting message without affecting the value passing on the connection.
"""
def __init__(self, message: str = "\nGreeting component says: Hi! The value is {value}\n", log_level: str = "INFO"):
"""
Class constructor
:param message: the message to log. Can use `{value}` to embed the value.
:param log_level: the level to log at.
"""
if log_level and not getattr(logging, log_level):
raise ValueError(f"This log level does not exist: {log_level}")
self.message = message
self.log_level = log_level
@component.output_types(value=int)
def run(self, value: int, message: Optional[str] = None, log_level: Optional[str] = None):
"""
Logs a greeting message without affecting the value passing on the connection.
"""
if not message:
message = self.message
if not log_level:
log_level = self.log_level
level = getattr(logging, log_level, None)
if not level:
raise ValueError(f"This log level does not exist: {log_level}")
logger.log(level=level, msg=message.format(value=value))
return {"value": value}
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