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Commit f1892912 by Gregory Nagy
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Refomated code using pep8 conventions. 

manage.py: error handling added
parent 99be2c47
Showing with 124 additions and 133 deletions
manage.py
import sys
from src import cnfparse, client, collectables
def main():
if len(sys.argv) < 2:
print("usage: manage.py run [options]")
if (len(sys.argv)<2):
print("usage: manage.py run [options]")
print("""
options:
--config <path> : path to the configuration file you intend
to start the client with
--debug : enables the debug mode and writes metrics sent to the
server
""")
if len(sys.argv) is not 2 and sys.argv[1] is not "run":
print("[ERROR] Command cannot be parsed. Exiting...")
return
if (len(sys.argv)==2 and sys.argv[1]=="run"):
configuration, metrics = cnfparse.importConf("config/client.conf")
configuration, metrics = cnfparse.importConf("config/client.conf")
cli = client.Client(configuration)
cli.startReporting(metricCollectors=
collectables.collectables.provide(metrics))
cli = client.Client(configuration)
cli.startReporting(metricCollectors =
collectables.collectables.provide(metrics))
if __name__ == "__main__":
main()
main()
src/client.py
......@@ -84,7 +84,7 @@ class Client:
"""
try:
self.channel.basic_publish(exchange=self.amqp_queue,
routing_key='', body="\n".join(message))
routing_key='', body="\n".join(message))
return True
except:
print("[ERROR] An error has occured while sending metrics to the "
......
src/cnfparse.py
......@@ -2,29 +2,29 @@ import ConfigParser as configparser
def importConf(path_to_file):
config = configparser.RawConfigParser(allow_no_value=False)
try:
config.read(path_to_file)
params = {}
metrics = {}
params["debugMode"] = config.get("Client", "Debug")
metrics["cpu.usage"] = int(config.get("Metrics", "cpuUsage"))
metrics["memory.usage"] = int(config.get("Metrics", "memoryUsage"))
metrics["user.count"] = int(config.get("Metrics", "userCount"))
metrics["swap.usage"] = int(config.get("Metrics", "swapUsage"))
metrics["system.boot_time"] = int(config.get("Metrics",
"systemBootTime"))
metrics["network"] = int(config.get("Metrics", "dataTraffic"))
params["kvmCpuUsage"] = int(config.get("KVM", "cpuUsage"))
params["kvmMemoryUsage"] = int(config.get("KVM", "memoryUsage"))
except configparser.NoSectionError:
print("Config file contains error! Reason: Missing section.")
raise
except configparser.ParsingError:
print("Config file contains error! Reason: Cannot parse.")
raise
except configparser.MissingSectionHeaderError:
print("Config file contains error! Reason: Missing section-header.")
raise
config = configparser.RawConfigParser(allow_no_value=False)
try:
config.read(path_to_file)
params = {}
metrics = {}
params["debugMode"] = config.get("Client", "Debug")
metrics["cpu.usage"] = int(config.get("Metrics", "cpuUsage"))
metrics["memory.usage"] = int(config.get("Metrics", "memoryUsage"))
metrics["user.count"] = int(config.get("Metrics", "userCount"))
metrics["swap.usage"] = int(config.get("Metrics", "swapUsage"))
metrics["system.boot_time"] = int(config.get("Metrics",
"systemBootTime"))
metrics["network"] = int(config.get("Metrics", "dataTraffic"))
params["kvmCpuUsage"] = int(config.get("KVM", "cpuUsage"))
params["kvmMemoryUsage"] = int(config.get("KVM", "memoryUsage"))
except configparser.NoSectionError:
print("Config file contains error! Reason: Missing section.")
raise
except configparser.ParsingError:
print("Config file contains error! Reason: Cannot parse.")
raise
except configparser.MissingSectionHeaderError:
print("Config file contains error! Reason: Missing section-header.")
raise
return params, metrics
return params, metrics
src/collectables.py
......@@ -3,17 +3,17 @@ from metrics import *
class collectables:
__collectables = {
std.cpu.usage.name: [std.cpu.usage],
std.memory.usage.name: [std.memory.usage],
std.swap.usage.name: [std.swap.usage],
std.user.count.name: [std.user.count],
std.network.packages_sent.name: [std.network.packages_sent],
std.network.packages_received.name: [std.network.packages_received],
std.network.bytes_sent.name: [std.network.bytes_sent],
std.network.bytes_received.name: [std.network.bytes_received],
std.system.boot_time.name: [std.system.boot_time],
"network": [std.network.bytes_sent, std.network.bytes_received,
std.network.packages_sent, std.network.packages_received],
std.cpu.usage.name: [std.cpu.usage],
std.memory.usage.name: [std.memory.usage],
std.swap.usage.name: [std.swap.usage],
std.user.count.name: [std.user.count],
std.network.packages_sent.name: [std.network.packages_sent],
std.network.packages_received.name: [std.network.packages_received],
std.network.bytes_sent.name: [std.network.bytes_sent],
std.network.bytes_received.name: [std.network.bytes_received],
std.system.boot_time.name: [std.system.boot_time],
"network": [std.network.bytes_sent, std.network.bytes_received,
std.network.packages_sent, std.network.packages_received],
}
@staticmethod
......
src/metrics.py
......@@ -8,87 +8,82 @@ import collections
Metrics = collections.namedtuple("Metrics", ["name", "value"])
class Collection (object):
class Group (object):
class Metric (object):
name = "unknown"
collector_function = 0
collector_function_arguments = {}
collector_function_result_attr = ""
@classmethod
def harvest(cls):
query = cls.collector_function.im_func(**cls.collector_function_arguments)
if ((isinstance(query, list)) or (isinstance(query, dict))):
return Metrics(cls.name,
query[cls.collector_function_result_attr])
elif (isinstance(query, tuple)):
return Metrics(cls.name,
query.__getattribute__(cls.collector_function_result_attr))
else:
return Metrics(cls.name, query)
class Collection(object):
class Group(object):
class Metric(object):
name = "unknown"
collector_function = 0
collector_function_arguments = {}
collector_function_result_attr = ""
@classmethod
def harvest(cls):
query = cls.collector_function.im_func(
**cls.collector_function_arguments)
if ((isinstance(query, list)) or (isinstance(query, dict))):
return Metrics(cls.name,
query[cls.collector_function_result_attr])
elif (isinstance(query, tuple)):
return Metrics(cls.name,
query.__getattribute__(
cls.collector_function_result_attr))
else:
return Metrics(cls.name, query)
##############################################################################
class std (Collection):
class cpu (Collection.Group):
class usage (Collection.Group.Metric):
name = "cpu.usage"
collector_function = ps.cpu_percent
collector_function_arguments = {
'interval': 0.0,
}
class memory (Collection.Group):
class usage(Collection.Group.Metric):
name = "memory.usage"
collector_function = ps.virtmem_usage
collector_function_result_attr = "percent"
class swap (Collection.Group):
class usage(Collection.Group.Metric):
name = "swap.usage"
collector_function = ps.swap_memory
collector_function_result_attr = "percent"
class user (Collection.Group):
class count (Collection.Group.Metric):
name = "user.count"
@classmethod
def harvest(cls):
return Metrics(cls.name, len(ps.get_users()))
class network (Collection.Group):
class packages_sent (Collection.Group.Metric):
name = "network.packages_sent"
collector_function = ps.network_io_counters
collector_function_result_attr = "packets_sent"
class packages_received (Collection.Group.Metric):
name = "network.packages_received"
collector_function = ps.network_io_counters
collector_function_result_attr = "packets_recv"
class bytes_sent (Collection.Group.Metric):
name = "network.bytes_sent"
collector_function = ps.network_io_counters
collector_function_result_attr = "bytes_sent"
class bytes_received(Collection.Group.Metric):
name = "network.bytes_received"
collector_function = ps.network_io_counters
collector_function_result_attr = "bytes_recv"
class system (Collection.Group):
class boot_time (Collection.Group.Metric):
name = "system.boot_time"
collector_function = ps.get_boot_time
\ No newline at end of file
class std(Collection):
class cpu(Collection.Group):
class usage(Collection.Group.Metric):
name = "cpu.usage"
collector_function = ps.cpu_percent
collector_function_arguments = {
'interval': 0.0,
}
class memory(Collection.Group):
class usage(Collection.Group.Metric):
name = "memory.usage"
collector_function = ps.virtmem_usage
collector_function_result_attr = "percent"
class swap(Collection.Group):
class usage(Collection.Group.Metric):
name = "swap.usage"
collector_function = ps.swap_memory
collector_function_result_attr = "percent"
class user(Collection.Group):
class count(Collection.Group.Metric):
name = "user.count"
@classmethod
def harvest(cls):
return Metrics(cls.name, len(ps.get_users()))
class network(Collection.Group):
class packages_sent(Collection.Group.Metric):
name = "network.packages_sent"
collector_function = ps.network_io_counters
collector_function_result_attr = "packets_sent"
class packages_received(Collection.Group.Metric):
name = "network.packages_received"
collector_function = ps.network_io_counters
collector_function_result_attr = "packets_recv"
class bytes_sent(Collection.Group.Metric):
name = "network.bytes_sent"
collector_function = ps.network_io_counters
collector_function_result_attr = "bytes_sent"
class bytes_received(Collection.Group.Metric):
name = "network.bytes_received"
collector_function = ps.network_io_counters
collector_function_result_attr = "bytes_recv"
class system(Collection.Group):
class boot_time(Collection.Group.Metric):
name = "system.boot_time"
collector_function = ps.get_boot_time
\ No newline at end of file
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