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# Copyright The OpenTelemetry Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from mysql.connector import connect
from opentelemetry import trace
from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import (
OTLPSpanExporter,
)
from opentelemetry.instrumentation.mysql import MySQLInstrumentor
from opentelemetry.sdk.resources import Resource
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor
resource = Resource.create(
attributes={
"service.name": "sqlcommenter-example",
}
)
trace.set_tracer_provider(TracerProvider(resource=resource))
span_processor = BatchSpanProcessor(
OTLPSpanExporter(endpoint="http://localhost:4317")
)
trace.get_tracer_provider().add_span_processor(span_processor)
cnx = connect(
host="localhost",
port=3366,
user="books",
password="books123",
database="books",
)
# Instruments MySQL queries with sqlcommenter enabled
# and comment-in-span-attribute enabled.
# Returns wrapped connection to generate traces.
cnx = MySQLInstrumentor().instrument_connection(
connection=cnx,
enable_commenter=True,
enable_attribute_commenter=True,
)
cursor = cnx.cursor()
statement = "SELECT * FROM authors WHERE id = %s"
# Each SELECT query generates one mysql log with sqlcomment
# and one OTel span with `db.statement` attribute that also
# includes sqlcomment.
for cid in range(1, 4):
cursor.execute(statement, (cid,))
rows = cursor.fetchall()
print(f"Found author: {rows[0]}")
print("Done.")
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