| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You 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 skywalking import Layer, Component, config |
| from skywalking.trace import tags |
| from skywalking.trace.context import get_context |
| from skywalking.trace.tags import Tag |
| |
| |
| def install(): |
| import wrapt # psycopg2 is read-only C extension objects so they need to be proxied |
| import psycopg2 |
| |
| class ProxyCursor(wrapt.ObjectProxy): |
| def __init__(self, cur): |
| wrapt.ObjectProxy.__init__(self, cur) |
| |
| self._self_cur = cur |
| |
| def __enter__(self): |
| return ProxyCursor(wrapt.ObjectProxy.__enter__(self)) |
| |
| def execute(self, query, vars=None): |
| dsn = self.connection.get_dsn_parameters() |
| peer = dsn['host'] + ':' + dsn['port'] |
| |
| with get_context().new_exit_span(op="PostgreSLQ/Psycopg/execute", peer=peer, |
| component=Component.Psycopg) as span: |
| span.layer = Layer.Database |
| |
| span.tag(Tag(key=tags.DbType, val="PostgreSQL")) |
| span.tag(Tag(key=tags.DbInstance, val=dsn['dbname'])) |
| span.tag(Tag(key=tags.DbStatement, val=query)) |
| |
| if config.sql_parameters_length and vars is not None: |
| text = ','.join(str(v) for v in vars) |
| |
| if len(text) > config.sql_parameters_length: |
| text = text[:config.sql_parameters_length] + '...' |
| |
| span.tag(Tag(key=tags.DbSqlParameters, val='[' + text + ']')) |
| |
| return self._self_cur.execute(query, vars) |
| |
| def executemany(self, query, vars_list): |
| dsn = self.connection.get_dsn_parameters() |
| peer = dsn['host'] + ':' + dsn['port'] |
| |
| with get_context().new_exit_span(op="PostgreSLQ/Psycopg/executemany", peer=peer, |
| component=Component.Psycopg) as span: |
| span.layer = Layer.Database |
| |
| span.tag(Tag(key=tags.DbType, val="PostgreSQL")) |
| span.tag(Tag(key=tags.DbInstance, val=dsn['dbname'])) |
| span.tag(Tag(key=tags.DbStatement, val=query)) |
| |
| if config.sql_parameters_length: |
| max_len = config.sql_parameters_length |
| total_len = 0 |
| text_list = [] |
| |
| for vars in vars_list: |
| text = '[' + ','.join(str(v) for v in vars) + ']' |
| total_len += len(text) |
| |
| if total_len > max_len: |
| text_list.append(text[:max_len - total_len] + '...') |
| |
| break |
| |
| text_list.append(text) |
| |
| span.tag(Tag(key=tags.DbSqlParameters, val='[' + ','.join(text_list) + ']')) |
| |
| return self._self_cur.executemany(query, vars_list) |
| |
| def callproc(self, procname, parameters=None): |
| dsn = self.connection.get_dsn_parameters() |
| peer = dsn['host'] + ':' + dsn['port'] |
| |
| with get_context().new_exit_span(op="PostgreSLQ/Psycopg/callproc", peer=peer, |
| component=Component.Psycopg) as span: |
| span.layer = Layer.Database |
| args = '(' + ('' if not parameters else ','.join(parameters)) + ')' |
| |
| span.tag(Tag(key=tags.DbType, val="PostgreSQL")) |
| span.tag(Tag(key=tags.DbInstance, val=dsn['dbname'])) |
| span.tag(Tag(key=tags.DbStatement, val=procname + args)) |
| |
| return self._self_cur.callproc(procname, parameters) |
| |
| class ProxyConnection(wrapt.ObjectProxy): |
| def __init__(self, conn): |
| wrapt.ObjectProxy.__init__(self, conn) |
| |
| self._self_conn = conn |
| |
| def __enter__(self): |
| return ProxyConnection(wrapt.ObjectProxy.__enter__(self)) |
| |
| def cursor(self, *args, **kwargs): |
| return ProxyCursor(self._self_conn.cursor(*args, **kwargs)) |
| |
| def connect(*args, **kwargs): |
| return ProxyConnection(_connect(*args, **kwargs)) |
| |
| _connect = psycopg2.connect |
| psycopg2.connect = connect |