class myssdb(object):
def __init__(self, table=None, host='localhost', port=8888, **kwargs):
self.table = table
pool = BlockingConnectionPool(host=host, port=port, **kwargs)
self.ssdb = SSDB(connection_pool=pool)
# 队尾放入一条数据
def put(self, data, **kwargs):
length = 0
if isinstance(data, dict) or isinstance(data, list):
length = self.ssdb.qpush_back(self.table, json.dumps(data))
else:
length = self.ssdb.qpush_back(self.table, data)
if length:
self.ssdb.hincr('counter_' + self.table, time.strftime('%Y-%m-%d', time.localtime(float(time.time()))))
return length
# 队首取出一条数据
def get(self, **kwargs):
data = self.ssdb.qpop_front(self.table)
if data:
return data[0]
return data
class myssdb_hash(object):
def __init__(self, table, host="localhost", port=8888, **kwargs):
self.name = table
pool = BlockingConnectionPool(host=host, port=port, **kwargs)
self.__conn = SSDB(connection_pool=pool)
# put a data
def put(self, value, **kwargs):
if isinstance(value, dict):
key = value.get("_id", str(uuid.uuid1()))
elif isinstance(value, basestring):
try:
tmp = json.loads(value)
if isinstance(tmp, dict):
key = tmp.get("_id", str(uuid.uuid1()))
else:
key = str(uuid.uuid1())
except:
key = str(uuid.uuid1())
else:
key = str(uuid.uuid1())
status = self.__conn.hset(self.name, key, value if isinstance(value, basestring) else json.dumps(value))
self.__conn.hincr("counter_" + self.name, time.strftime("%Y-%m-%d", time.localtime(float(time.time()))))
return status
# get a data
def get(self, **kwargs):
tmp = self.__conn.hscan(self.name, "", "", limit=1)
if not tmp:
return None
try:
self.__conn.hdel(self.name, tmp.keys()[0])
except Exception as e:
print str(e)
return None
return tmp.values()[0]
# table size
def size(self, *args, **kwargs):
return self.__conn.hsize(self.name)
def __list(self):
start_key = ""
for i in xrange(0, self.size(), 1000):
tmp = self.__conn.hscan(self.name, start_key, "", limit=1000)
start_key = tmp.keys()[-1]
for value in tmp.values():
yield value
def get_values(self):
return self.__list()
class SsdbClient(object):
"""
SSDB client
SSDB中代理存放的容器为hash：
原始代理存放在name为raw_proxy的hash中，key为代理的ip:port，value为None,以后扩展可能会加入代理属性；
验证后供flask使用的代理存放在name为useful_proxy的hash中，key为代理的ip:port，value为None,以后扩展可能会加入代理属性；
"""
def __init__(self, name, host, port):
"""
init
:param name: hash name
:param host: ssdb host
:param port: ssdb port
:return:
"""
self.name = name
self.__conn = SSDB(
connection_pool=BlockingConnectionPool(host=host, port=port))
def get(self):
"""
get an item
从useful_proxy_queue随机获取一个可用代理, 使用前需要调用changeTable("useful_proxy_queue")
:return:
"""
values = self.__conn.hgetall(name=self.name)
return random.choice(values.keys()) if values else None
def put(self, key):
"""
put an item
将代理放入hash, 使用changeTable指定hash name
:param key:
:return:
"""
key = json.dump(key, ensure_ascii=False).encode('utf-8') if isinstance(
key, (dict, list)) else key
return self.__conn.hincr(self.name, key, 1)
# return self.__conn.hset(self.name, value, None)
def getvalue(self, key):
value = self.__conn.hget(self.name, key)
return value if value else None
def pop(self):
"""
pop an item
弹出一个代理， 使用changeTable指定hash name
:return:
"""
key = self.get()
if key:
self.__conn.hdel(self.name, key)
return key
def delete(self, key):
"""
Remove the ``key`` from hash ``name``
:param key:
:return:
"""
self.__conn.hdel(self.name, key)
def inckey(self, key, value):
self.__conn.hincr(self.name, key, value)
def getAll(self):
return self.__conn.hgetall(self.name).keys()
def get_status(self):
"""
Return the number of elements in hash ``name``
:return:
"""
return self.__conn.hsize(self.name)
def changeTable(self, name):
self.name = name
class QueueSSDB(QueueBase.QueueBase):
"""
base class , only provide interface for sub class to implement
"""
def __init__(self, name, host='localhost', port=8888, **kwargs):
QueueBase.QueueBase.__init__(self, name, host, port)
self.__conn = SSDB(connection_pool=BlockingConnectionPool(host=self.host, port=self.port))
#queue
@QueueBase.catch
def put(self, value, *args, **kwargs):
"""
put an item in the back of a queue
:param value:
:param args:
:param kwargs:
:return:
"""
return self.__conn.qpush_back(self.name,
json.dumps(value, ensure_ascii=False).encode('utf-8') if isinstance(value, dict) or isinstance(value, list) else value)
def save(self, value, *args, **kwargs):
"""
put an item in the back of a queue
:param value:
:param args:
:param kwargs:
:return:
"""
return self.__conn.qpush_back(self.name,
json.dumps(value, ensure_ascii = False).encode('utf-8') if isinstance(value,
dict) or isinstance(
value, list) else value)
@QueueBase.catch
def get(self, *args, **kwargs):
"""
get element from the from of queue
:param args:
:param kwargs:
:return:
"""
value = self.__conn.qpop_front(self.name)
return value[0] if value else value
@QueueBase.catch
def getMore(self, *args, **kwargs):
"""
get element from the from of queue
:param args:
:param kwargs:
:return:
"""
value = self.__conn.qpop_front(self.name, **kwargs)
return value
@QueueBase.catch
def size(self, *args, **kwargs):
return self.__conn.qsize(self.name)
@QueueBase.catch
def changeTable(self, name):
"""
change the queue name to operate
:param name:
:return:
"""
self.name = name
@QueueBase.catch
def select_queue(self, name):
"""
change the queue name to operate
:param name:
:return:
"""
self.name = name
@QueueBase.catch
def qclaerQueue(self):
return self.__conn.qclear(self.name)
#KV
@QueueBase.catch
def keySet(self,key,value):
"""
Set the value at key ``name`` to ``value`` .
:param key:
:param value:
:return:
"""
value = json.dumps(value, ensure_ascii = False).encode('utf-8') if isinstance(value,dict) or isinstance(value, list) else value
return self.__conn.set(key,value)
@QueueBase.catch
def keySetx(self,name, value, ttl=-1):
"""
Set the value of key ``name`` to ``value`` that expires in ``ttl``
seconds. ``ttl`` can be represented by an integer or a Python
timedelta object.
:param name:
:param value:
:param ttl:
:return:
"""
return self.__conn.setx(name,value,ttl=ttl)
@QueueBase.catch
def keyTtl(self,key):
"""
Returns the number of seconds until the key ``name`` will expire.
:return:
"""
self.__conn.ttl(key)
@QueueBase.catch
def keyGet(self,key):
"""
Return the value at key ``name``, or ``None`` if the key doesn't exist
:param key:
:return:
"""
return self.__conn.get(key)
@QueueBase.catch
def keyDel(self,key):
"""
Delete the key specified by ``name`` .
:param key:
:return:
"""
return self.__conn.delete(key)
@QueueBase.catch
def keyKeys(self,key_start='',key_end=''):
"""
Return a list of the top ``limit`` keys between ``name_start`` and
``name_end``
:param key_start:
:param key_end:
:return:
"""
return self.__conn.keys(name_start=key_start,name_end=key_end,limit=100000)
@QueueBase.catch
def keyexists(self,key):
"""
:param key:
:return:
"""
return self.__conn.exists(key)
#SET
@QueueBase.catch
def zsetSet(self,field,score = 1):
if field:
if isinstance(field, dict) or isinstance(field, list):
field = json.dumps(field)
field = field if len(field) < 100 else field[:100]
return self.__conn.zset(self.name, field, score)
@QueueBase.catch
def zgetSet(self,key):
return self.__conn.zget(self.name,key)
@QueueBase.catch
def zexistsSet(self,name,field):
return self.__conn.zexists(name,field)
@QueueBase.catch
def zkeysSet(self):
return self.__conn.zkeys(self.name,'','','',limit=100000000)
@QueueBase.catch
def zdelSet(self,key):
return self.__conn.zdel(self.name,key)
@QueueBase.catch
def multi_zgetSet(self,*keys):
return self.__conn.multi_zget(self.name,*keys)
#Hash
@QueueBase.catch
def hgetallHash(self,key):
return self.__conn.hgetall(key)
@QueueBase.catch
def hincrHash(self,name,key):
return self.__conn.hincr(name,key,amount=1)
@QueueBase.catch
def multi_hsetHash(self,name,**mapping):
return self.__conn.multi_hset(name, **mapping)
@QueueBase.catch
def hlistHash(self,start,end):
return self.__conn.hlist(start, end, limit = 10000000)
@QueueBase.catch
def hclearHash(self,key):
return self.__conn.hclear(key)
@QueueBase.catch
def hset(self, key,value):
return self.__conn.hset(self.name, key,json.dumps(value, ensure_ascii = False).encode('utf-8')
if isinstance(value,dict) or isinstance(value, list) else value)
@QueueBase.catch
def hsize(self):
return self.__conn.hsize(self.name)
@QueueBase.catch
def hget(self, key = None):
if key:
return self.__conn.hget(self.name, key)
else:
if self.__conn.hsize(self.name) > 0:
keys=self.__conn.hkeys(self.name,"", "",limit=1)
if keys:
key=keys[0]
v=self.__conn.hget(self.name, key)
self.__conn.hdel(self.name, key)
return v
