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Merge pull request #1 from analyticstoolkit/cleanup
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code clean
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@rodorad
rodorad committed Mar 24, 2017
2 parents 47d2cc8 + 5a3dc9d commit 08a9cbd
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1 change: 1 addition & 0 deletions .gitignore
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build/
formula-args.yaml
before*
cc
202 changes: 202 additions & 0 deletions LICENSE.txt
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15 changes: 6 additions & 9 deletions cluster_config/__init__.py
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from cluster_config import file
from cluster_config import dict
from cluster_config import log
from cluster_config import cli
#provide pdoc html

from cluster_config.utils import cli
from cluster_config.utils import file
from cluster_config.utils import log
from cluster_config.utils import dict, file, log, cli

#the hocon file extension https://github.com/typesafehub/config/blob/master/HOCON.md
HOCON_EXT = "conf"
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#CDH configuration file name
CDH_CONFIG_NAME = "cdh"

#ATK generated config name
ATK_GENERATED_CONFIG_NAME = "generated"

#CDH config file name
CDH_CONFIG = "{0}.{1}".format(CDH_CONFIG_NAME, JSON_EXT)

#user cdh config file name
USER_CDH_CONFIG = "{0}-{1}.{2}".format(USER_PREFIX, CDH_CONFIG_NAME, JSON_EXT)

#ATK generated config file name
ATK_CONFIG = "{0}.{1}".format(ATK_GENERATED_CONFIG_NAME, HOCON_EXT)

#merged file name
MERGED_CDH_CONFIG = "{0}-{1}.{2}".format(MERGE_PREFIX, CDH_CONFIG_NAME, JSON_EXT)

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135 changes: 135 additions & 0 deletions cluster_config/cdh/__init__.py
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from urllib2 import URLError

from cm_api.api_client import ApiResource

from cluster_config.utils import log

class CDH(object):
'''
CDH base object class used to define common options needed to perform many of the cm-api requests.
'''


def __init__(self, host, port, username, password):
self.cmapi_resource_root = None
self.get_api_resource(host, port, username, password)
self.cmapi_cluster = self.get_cluster()

def set_resources(self, cdh):
self.cmapi_resource_root = cdh.cmapi_resource_root
self.cmapi_cluster = cdh.cmapi_cluster
if hasattr(cdh, "cmapi_service"):
self.cmapi_service = cdh.cmapi_service
else:
self.cmapi_service = None

"""
def __init__(self, cmapi_resource_root, cmapi_cluster):
self.cmapi_resource_root = cmapi_resource_root
self.cmapi_cluster = cmapi_cluster
self.cmapi_service = None
def __init__(self, cmapi_resource_root, cmapi_cluster, cmapi_service):
self.cmapi_resource_root = cmapi_resource_root
self.cmapi_cluster = cmapi_cluster
self.cmapi_service = cmapi_service
"""

def get_api_resource(self, host, port, username, password):
'''
Instantiate the cm_api resource, verify the host,port,username and password is not empty or None
:param host:
:param port:
:param username:
:param password:
'''
if host is None or host is "":
log.fatal("host init parameter can't be None or empty")
if port is None or port is "":
log.fatal("port init parameter can't be None or empty")
if username is None or username is "":
log.fatal("username init parameter can't be None or empty")
if password is None or password is "":
log.fatal("password init parameter can't be None or empty")

#initialize cloudera manager connection
log.debug("Connection to cluster {0}:{1} with user {2}:{3}".format(host, port, username, password))
self.cdh_resource_root = ApiResource(host, server_port=port, username=username, password=password)

def get_cluster(self):
'''
Try to select a cluster if we have more than one cluster we need to ask the user. If we have 0 through fatal.
if we have exactly one make it the default selection
'''
clusters = self.cdh_get_clusters()

#if we have more than one cluster we need to pick witch one to configure against
if len(clusters) > 1:
log.info("More than one Cluster Detected.")
return self.select_cluster(clusters)
#else pick the only cluster
elif len(clusters) == 1:
log.info("cluster selected: {0}".format(clusters[0].name))
return clusters[0]
elif len(clusters) <= 0:
log.fatal("No clusters to configure")


def select_cluster(self, clusters):
'''
Select a cluster either by trying to match self.user_cluster_name to the cluster name or display name or by
prompting the user to select a cluster.
:return: selected cluster
'''
if self.user_cluster_name:
print("Trying to find cluster: '{0}'.".format(self.user_cluster_name))

for c in clusters:
if c.displayName == self.user_cluster_name or c.name == self.user_cluster_name:
return c

else:
print("Please choose a cluster.")

count = 0
for c in clusters:
print("Id {0}: Cluster Name: {1:20} Version: {2}".format((count+1), c.name, c.version))
count += 1

cluster_index = input("Enter the clusters Id : ")
if cluster_index <= 0 or cluster_index > count:
log.fatal("Invalid cluster id selected: {0}.".format(cluster_index))
else:
cluster_index -= 1
print ("You picked cluster {0}: Cluster Name: {1:20} Version: {2}".format(cluster_index, clusters[cluster_index].name, clusters[cluster_index].version))
return clusters[cluster_index]

def cdh_get_clusters(self):
'''
retrieve all the clusters managed by cdh
:return: list of cluster objects
'''
clusters = None
try:
clusters = self.cmapi_resource_root.get_all_clusters()
except URLError:
log.fatal("couldn't connect to cluster management node.")
return clusters

@property
def cdh_resource_root(self):
return self.cmapi_resource_root

@cdh_resource_root.setter
def cdh_resource_root(self, cmapi_resource_root):
self.cmapi_resource_root = cmapi_resource_root

@property
def cluster(self):
return self.cmapi_cluster

@cluster.setter
def cluster(self, cluster):
self.cmapi_cluster = cluster

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