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#
# -------------------------------------------------------------------------
# Copyright (c) 2019 AT&T Intellectual Property
#
# 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.
#
# -------------------------------------------------------------------------
#
import json
import os
import sys
import time
from datetime import datetime
from textwrap import TextWrapper
import pytz
class Tables(object):
"""parent class for all tables."""
schema = None
alias = None
def __init__(self, music, logger):
"""Initializer. Accepts target host list, port, and path."""
self.music = music
self.logger = logger
self.key = None
self.keyspace = music.keyspace
self.tz = pytz.timezone('America/New_York')
@classmethod
def table_alias(cls):
s = cls.__name__
s = s[0].lower() + s[1:]
return [s] + cls.alias
@staticmethod
def option_choices():
choices = []
aliases = None
for table in Tables.__subclasses__():
choices = choices + table.table_alias()
for alias in choices:
if aliases:
aliases = aliases + ' ' + alias
else:
aliases = alias
choices.append('all')
return {
"alias": TextWrapper(subsequent_indent=" ", initial_indent=" ", width=79).fill(aliases),
"choices": choices
}
def table(self):
"""Return tables name (same as class name but all lc)."""
s = type(self).__name__
return s[0].lower() + s[1:]
def utc2local(self, utc):
"""Change utc time to local time for readability."""
return " (" + datetime.fromtimestamp(utc, self.tz).strftime('%Y-%m-%d %I:%M:%S %Z%z') + ")"
def get_rows(self, ids=None, raw=False):
""" get_rows read table, or rows by id and return rows array """
# TODO if ids == None and hasattr(self, 'ids'): ids = self.ids
key = None if (ids is None) else self.key
rows = []
for row_id in ids or [None]:
if raw:
rows.append(json.dumps(self.music.read_row(self.keyspace, self.table(), key, row_id), sort_keys=True, indent=4))
continue
result = self.music.read_row(self.keyspace, self.table(), key, row_id)["result"]
# strip "Row n"
for _, data in sorted(result.items()):
rows.append(data)
if raw:
return rows
if len(rows) == 1:
rows = rows[0] # one row? not a list
return rows
def read(self, ids=None, json_file=None, raw=False, rows=None, names=None):
""" read rows (array or single dict) to stdout or to a file """
if rows is None:
rows = self.get_rows(ids, raw)
if raw:
if names:
print("\n" + self.table())
for row in rows:
print(row)
return
if isinstance(rows, list):
for row in rows:
if not ("timestamp" in row or "expire_time" in row):
break
for key in (["timestamp", "expire_time"]):
if (not (key in row)) or (row[key] is None):
continue
try:
row[key] = row[key] + self.utc2local(float(row[key])/1000)
except ValueError:
row[key] = "Error: "+ row[key]
else:
row = rows
for key in (["timestamp", "expire_time"]):
if (not (key in row)) or (row[key] is None):
continue
try:
row[key] = row[key] + self.utc2local(float(row[key])/1000)
except ValueError:
row[key] = "Error: "+ row[key]
if json_file is None:
if names:
print("\n" + self.table())
print (json.dumps(rows, sort_keys=True, indent=4))
return
fh = open(json_file, "w")
fh.write(json.dumps(rows, sort_keys=True, indent=4))
fh.close()
def create(self, json_file=None):
""" add records from a file to db """
if json_file and os.path.exists(json_file):
inf = open(json_file)
f = json_file
else:
inf = sys.stdin
f = "stdin"
self.logger.info("Create " + self.table() + " from: " + f)
self.insert(json.loads(inf.read()))
def insert(self, data):
""" add records """
self.logger.debug(data)
if isinstance(data, list):
for row in data:
if "timestamp" in row:
row['timestamp'] = int(round(time.time() * 1000))
self.music.create_row(self.keyspace, self.table(), row)
else:
row = data
if "timestamp" in row:
row['timestamp'] = int(round(time.time() * 1000))
self.music.create_row(self.keyspace, self.table(), row)
def create_table(self):
""" create table """
self.logger.info(self.schema)
self.music.create_table(self.keyspace, self.table(), self.schema)
def update(self, json_file):
"""Update a row. Not atomic."""
self.logger.info("Update " + self.table() + " from: " + json_file)
data = json.loads(open(json_file).read())
self.logger.debug(data)
if isinstance(data, list):
for row in data:
self.music.update_row_eventually(self.keyspace, self.table(), row)
else:
self.music.update_row_eventually(self.keyspace, self.table(), data)
def delete(self, ids):
""" delete records db based on id """
for row_id in ids:
self.logger.info("Delete from" + self.table() + " id: " + row_id)
self.music.delete_row_eventually(self.keyspace, self.table(), self.key, row_id)
def clean_table(self):
""" delete all records in table """
ids = []
rows = self.get_rows()
if isinstance(rows, list):
for row in rows:
ids.append(row[self.key])
else:
row = rows
ids.append(row[self.key])
for row_id in ids:
self.music.delete_row_eventually(self.keyspace, self.table(), self.key, row_id)
# Subclasses of Tables:
class Requests(Tables):
alias = ["req", "q"]
key = "request_id"
schema = json.loads('{ "request_id": "text", "timestamp": "text", "request": "text", "PRIMARY KEY": "(request_id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Requests.key
class Results(Tables):
alias = ["resu", "u"]
key = "request_id"
schema = json.loads('{ "request_id": "text", "status": "text", "timestamp": "text", "result": "text", "PRIMARY KEY": "(request_id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Results.key
class Group_rules(Tables):
alias = ["rule", "gr"]
key = "id"
schema = json.loads('{ "id": "text", "app_scope": "text", "type": "text", "level": "text", "members": "text", "description": "text", "groups": "text", "status": "text", "timestamp": "text", "PRIMARY KEY": "(id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Group_rules.key
class Stacks(Tables):
alias = ["stack", "s"]
key = "id"
schema = json.loads('{ "id": "text", "last_status": "text", "datacenter": "text", "stack_name": "text", "uuid": "text", "tenant_id": "text", "metadata": "text", "servers": "text", "prior_servers": "text", "state": "text", "prior_State": "text", "timestamp": "text", "PRIMARY KEY": "(id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Stacks.key
class Stack_id_map(Tables):
alias = ["map", "m"]
key = "request_id"
schema = json.loads('{ "request_id": "text", "stack_id": "text", "timestamp": "text", "PRIMARY KEY": "(request_id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Stack_id_map.key
class Resources(Tables):
alias = ["reso", "o"]
key = "id"
schema = json.loads('{ "id": "text", "url": "text", "resource": "text", "timestamp": "text", "requests": "text", "PRIMARY KEY": "(id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Resources.key
class Regions(Tables):
alias = ["reg", "i", "lock"]
key = "region_id"
schema = json.loads('{ "region_id ": "text", "timestamp": "text", "last_updated ": "text", "keystone_url": "text", "locked_by": "text", "locked_time ": "text", "expire_time": "text", "PRIMARY KEY": "(region_id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Regions.key
class Groups(Tables):
alias = ["group", "g"]
key = "id"
schema = json.loads('{ "id ": "text", "uuid": "text", "type ": "text", "level": "text", "factory": "text", "rule_id ": "text", "metadata ": "text", "server_list": "text", "member_hosts": "text", "status": "text", "PRIMARY KEY": "(id)" }')
def __init__(self, music, logger):
Tables.__init__(self, music, logger)
self.key = Groups.key
if __name__ == "__main__":
print(Tables.option_choices())
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