def __init__(self, config):
"""
Initializes a resource object.
:param root_uri: the base URL of Rexster.
"""
self.config = config
self.registry = Registry(config)
self.scripts = Scripts()
dir_name = os.path.dirname(__file__)
self.scripts.override(get_file_path(dir_name, "gremlin.groovy"))
self.registry.add_scripts("gremlin", self.scripts)
self.type_system, content_type = get_type_system(config)
self.request = RexsterRequest(config, content_type=content_type)
def __init__(self,config):
"""
Initializes a resource object.
:param root_uri: the base URL of Rexster.
"""
self.config = config
self.registry = Registry(config)
self.scripts = Scripts()
dir_name = os.path.dirname(__file__)
self.scripts.override(get_file_path(dir_name,"gremlin.groovy"))
self.registry.add_scripts("gremlin",self.scripts)
self.type_system, content_type = get_type_system(config)
self.request = RexsterRequest(config,content_type=content_type)
class RexsterResource(Resource):
vertex_path = "vertices"
edge_path = "edges"
index_path = "indices"
gremlin_path = "tp/gremlin"
transaction_path = "tp/batch/tx"
multi_get_path = "tp/batch"
def __init__(self, config):
"""
Initializes a resource object.
:param root_uri: the base URL of Rexster.
"""
self.config = config
self.registry = Registry(config)
self.scripts = Scripts()
dir_name = os.path.dirname(__file__)
self.scripts.override(get_file_path(dir_name, "gremlin.groovy"))
self.registry.add_scripts("gremlin", self.scripts)
self.type_system, content_type = get_type_system(config)
self.request = RexsterRequest(config, content_type=content_type)
#self.index_class = ManualIndex
#def convert_to_db(self,data):
# rexster_data = dict()
# for key, value in data.items():
# rexster_data[key] = self.type_system.to_db(value)
# return rexster_data
#
# Gremlin
#
def gremlin(self, script):
params = dict(script=script)
return self.request.post(self.gremlin_path, params)
#
# Vertices
#
def create_vertex(self, data):
#data = self.convert_to_db(data)
return self.request.post(self.vertex_path, data)
def get_vertex(self, _id):
path = build_path(self.vertex_path, _id)
return self.request.get(path, params=None)
def update_vertex(self, _id, data):
#data = self.convert_to_db(data)
path = build_path(self.vertex_path, _id)
return self.request.put(path, data)
def delete_vertex(self, _id):
path = build_path(self.vertex_path, _id)
return self.request.delete(path, params=None)
#
# Edges
#
def create_edge(self, outV, label, inV, data={}):
#data = self.convert_to_db(data)
edge_data = dict(_outV=outV, _label=label, _inV=inV)
data.update(edge_data)
return self.request.post(self.edge_path, data)
def get_edge(self, _id):
path = build_path(self.edge_path, _id)
return self.request.get(path, params=None)
def update_edge(self, _id, data):
#data = self.convert_to_db(data)
path = build_path(self.edge_path, _id)
return self.request.put(path, data)
def delete_edge(self, _id):
path = build_path(self.edge_path, _id)
return self.request.delete(path, params=None)
#
# Vertex Index
#
def create_automatic_vertex_index(self,
index_name,
element_class,
keys=None):
keys = json.dumps(keys) if keys else "null"
params = dict(index_name=index_name,
element_class=element_class,
keys=keys)
script = self.scripts.get('create_automatic_vertex_index', params)
return self.gremlin(script)
def create_indexed_vertex_automatic(self, data, index_name):
data = json.dumps(data)
params = dict(data=data, index_name=index_name)
script = self.scripts.get('create_automatic_indexed_vertex', params)
return self.gremlin(script)
def create_vertex_index(self, name, *args, **kwds):
path = build_path(self.index_path, name)
index_type = kwds.get('index_type', 'automatic')
index_keys = kwds.get('index_keys', None)
params = {'class': 'vertex', 'type': index_type}
if index_keys:
params.update({'keys': index_keys})
return self.request.post(path, params)
def create_edge_index(self, name, *args, **kwds):
path = build_path(self.index_path, name)
index_type = kwds.get('index_type', 'automatic')
index_keys = kwds.get('index_keys', None)
params = {'class': 'edge', 'type': index_type}
if index_keys:
params.update({'keys': index_keys})
return self.request.post(path, params)
def get_index(self, name):
path = build_path(self.index_path, name)
return self.request.get(path, params=None)
def get_vertex_index(self, name):
return self.get_index(name)
def get_edge_index(self, name):
return self.get_index(name)
def get_all_indices(self):
return self.request.get(self.index_path, params=None)
def delete_index(self, name):
path = build_path(self.index_path, name)
return self.request.delete(path, params=None)
def delete_vertex_index(self, name):
self.delete_index(name)
def delete_edge_index(self, name):
self.delete_index(name)
# Indexed vertices
def put_vertex(self, name, key, value, _id):
# Rexster's API only supports string lookups so convert value to a string
path = build_path(self.index_path, name)
params = {
'key': key,
'value': str(value),
'class': 'vertex',
'id': _id
}
return self.request.post(path, params)
def put_edge(self, name, key, value, _id):
# Rexster's API only supports string lookups so convert value to a string
path = build_path(self.index_path, name)
params = {'key': key, 'value': str(value), 'class': 'edge', 'id': _id}
return self.request.post(path, params)
def lookup_vertex(self, index_name, key, value):
path = build_path(self.index_path, index_name)
params = dict(key=key, value=value)
return self.request.get(path, params)
def remove_vertex(self, name, _id, key=None, value=None):
# Can Rexster have None for key and value?
path = build_path(self.index_path, name)
params = {'key': key, 'value': value, 'class': 'vertex', 'id': _id}
return self.request.delete(path, params)
def remove_edge(self, name, _id, key=None, value=None):
# Can Rexster have None for key and value?
path = build_path(self.index_path, name)
params = {'key': key, 'value': value, 'class': 'edge', 'id': _id}
return self.request.delete(path, params)
# Rexster-specific index mehthods
def index_count(self, name, key, value):
path = build_path(self.index_path, name, "count")
params = dict(key=key, value=value)
return self.request.get(path, params)
def index_keys(self, name):
path = build_path(self.index_path, name, "keys")
return self.request.get(path, params=None)
# Model
def create_indexed_vertex(self, index_name, data={}, keys=None):
script = self.scripts.create_indexed_vertex(index_name, data, keys)
return self.gremlin(script)
#
# Model Proxy - Vertex
#
def create_indexed_vertex(self, data, index_name, keys=None):
params = dict(data=data, index_name=index_name, keys=keys)
script = self.scripts.get("create_indexed_vertex")
return self.gremlin(script, params)
def update_indexed_vertex(self, _id, data, index_name, keys=None):
params = dict(_id=_id, data=data, index_name=index_name, keys=keys)
script = self.scripts.get("update_indexed_vertex")
return self.gremlin(script, params)
#
# Model Proxy - Edge
#
def create_indexed_edge(self, data, index_name, keys=None):
params = dict(data=data, index_name=index_name, keys=keys)
script = self.scripts.get("create_indexed_edge")
return self.gremlin(script, params)
def update_indexed_edge(self, _id, data, index_name, keys=None):
params = dict(_id=_id, data=data, index_name=index_name, keys=keys)
script = self.scripts.get("update_indexed_edge")
return self.gremlin(script, params)
#
# Rexster Specific Stuff
#
def rebuild_vertex_index(self, index_name):
params = dict(index_name=index_name)
script = self.scripts.get('rebuild_vertex_index', params)
return self.gremlin(script)
def rebuild_edge_index(self, index_name):
params = dict(index_name=index_name)
script = self.scripts.get('rebuild_edge_index', params)
return self.gremlin(script)
# TODO: manual/custom index API
def multi_get_vertices(self, id_list):
path = build_path(self.multi_get_path, "vertices")
idList = build_url_list(id_list)
params = dict(idList=idList)
return self.request.get(path, params)
def multi_get_edges(self, id_list):
path = build_path(self.multi_get_path, "edges")
idList = build_url_list(id_list)
params = dict(idList=idList)
return self.request.get(path, params)
def execute_transaction(self, transaction):
params = dict(tx=transaction.actions)
return self.request.post(self.transction_path, params)
class RexsterResource(Resource):
vertex_path = "vertices"
edge_path = "edges"
index_path = "indices"
gremlin_path = "tp/gremlin"
transaction_path = "tp/batch/tx"
multi_get_path = "tp/batch"
def __init__(self,config):
"""
Initializes a resource object.
:param root_uri: the base URL of Rexster.
"""
self.config = config
self.registry = Registry(config)
self.scripts = Scripts()
dir_name = os.path.dirname(__file__)
self.scripts.override(get_file_path(dir_name,"gremlin.groovy"))
self.registry.add_scripts("gremlin",self.scripts)
self.type_system, content_type = get_type_system(config)
self.request = RexsterRequest(config,content_type=content_type)
#self.index_class = ManualIndex
#def convert_to_db(self,data):
# rexster_data = dict()
# for key, value in data.items():
# rexster_data[key] = self.type_system.to_db(value)
# return rexster_data
#
# Gremlin
#
def gremlin(self,script):
params = dict(script=script)
return self.request.post(self.gremlin_path,params)
#
# Vertices
#
def create_vertex(self,data):
#data = self.convert_to_db(data)
return self.request.post(self.vertex_path,data)
def get_vertex(self,_id):
path = build_path(self.vertex_path,_id)
return self.request.get(path,params=None)
def update_vertex(self,_id,data):
#data = self.convert_to_db(data)
path = build_path(self.vertex_path,_id)
return self.request.put(path,data)
def delete_vertex(self,_id):
path = build_path(self.vertex_path,_id)
return self.request.delete(path,params=None)
#
# Edges
#
def create_edge(self,outV,label,inV,data={}):
#data = self.convert_to_db(data)
edge_data = dict(_outV=outV,_label=label,_inV=inV)
data.update(edge_data)
return self.request.post(self.edge_path,data)
def get_edge(self,_id):
path = build_path(self.edge_path,_id)
return self.request.get(path,params=None)
def update_edge(self,_id,data):
#data = self.convert_to_db(data)
path = build_path(self.edge_path,_id)
return self.request.put(path,data)
def delete_edge(self,_id):
path = build_path(self.edge_path,_id)
return self.request.delete(path,params=None)
#
# Vertex Index
#
def create_automatic_vertex_index(self,index_name,element_class,keys=None):
keys = json.dumps(keys) if keys else "null"
params = dict(index_name=index_name,element_class=element_class,keys=keys)
script = self.scripts.get('create_automatic_vertex_index',params)
return self.gremlin(script)
def create_indexed_vertex_automatic(self,data,index_name):
data = json.dumps(data)
params = dict(data=data,index_name=index_name)
script = self.scripts.get('create_automatic_indexed_vertex',params)
return self.gremlin(script)
def create_vertex_index(self,name,*args,**kwds):
path = build_path(self.index_path,name)
index_type = kwds.get('index_type','automatic')
index_keys = kwds.get('index_keys',None)
params = {'class':'vertex','type':index_type}
if index_keys:
params.update({'keys':index_keys})
return self.request.post(path,params)
def create_edge_index(self,name,*args,**kwds):
path = build_path(self.index_path,name)
index_type = kwds.get('index_type','automatic')
index_keys = kwds.get('index_keys',None)
params = {'class':'edge','type':index_type}
if index_keys:
params.update({'keys':index_keys})
return self.request.post(path,params)
def get_index(self,name):
path = build_path(self.index_path,name)
return self.request.get(path,params=None)
def get_vertex_index(self,name):
return self.get_index(name)
def get_edge_index(self,name):
return self.get_index(name)
def get_all_indices(self):
return self.request.get(self.index_path,params=None)
def delete_index(self,name):
path = build_path(self.index_path,name)
return self.request.delete(path,params=None)
def delete_vertex_index(self,name):
self.delete_index(name)
def delete_edge_index(self,name):
self.delete_index(name)
# Indexed vertices
def put_vertex(self,name,key,value,_id):
# Rexster's API only supports string lookups so convert value to a string
path = build_path(self.index_path,name)
params = {'key':key,'value':str(value),'class':'vertex','id':_id}
return self.request.post(path,params)
def put_edge(self,name,key,value,_id):
# Rexster's API only supports string lookups so convert value to a string
path = build_path(self.index_path,name)
params = {'key':key,'value':str(value),'class':'edge','id':_id}
return self.request.post(path,params)
def lookup_vertex(self,index_name,key,value):
path = build_path(self.index_path,index_name)
params = dict(key=key,value=value)
return self.request.get(path,params)
def remove_vertex(self,name,_id,key=None,value=None):
# Can Rexster have None for key and value?
path = build_path(self.index_path,name)
params = {'key':key,'value':value,'class':'vertex','id':_id}
return self.request.delete(path,params)
def remove_edge(self,name,_id,key=None,value=None):
# Can Rexster have None for key and value?
path = build_path(self.index_path,name)
params = {'key':key,'value':value,'class':'edge','id':_id}
return self.request.delete(path,params)
# Rexster-specific index mehthods
def index_count(self,name,key,value):
path = build_path(self.index_path,name,"count")
params = dict(key=key,value=value)
return self.request.get(path,params)
def index_keys(self,name):
path = build_path(self.index_path,name,"keys")
return self.request.get(path,params=None)
# Model
def create_indexed_vertex(self,index_name,data={},keys=None):
script = self.scripts.create_indexed_vertex(index_name,data,keys)
return self.gremlin(script)
#
# Model Proxy - Vertex
#
def create_indexed_vertex(self,data,index_name,keys=None):
params = dict(data=data,index_name=index_name,keys=keys)
script = self.scripts.get("create_indexed_vertex")
return self.gremlin(script,params)
def update_indexed_vertex(self,_id,data,index_name,keys=None):
params = dict(_id=_id,data=data,index_name=index_name,keys=keys)
script = self.scripts.get("update_indexed_vertex")
return self.gremlin(script,params)
#
# Model Proxy - Edge
#
def create_indexed_edge(self,data,index_name,keys=None):
params = dict(data=data,index_name=index_name,keys=keys)
script = self.scripts.get("create_indexed_edge")
return self.gremlin(script,params)
def update_indexed_edge(self,_id,data,index_name,keys=None):
params = dict(_id=_id,data=data,index_name=index_name,keys=keys)
script = self.scripts.get("update_indexed_edge")
return self.gremlin(script,params)
#
# Rexster Specific Stuff
#
def rebuild_vertex_index(self,index_name):
params = dict(index_name=index_name)
script = self.scripts.get('rebuild_vertex_index',params)
return self.gremlin(script)
def rebuild_edge_index(self,index_name):
params = dict(index_name=index_name)
script = self.scripts.get('rebuild_edge_index',params)
return self.gremlin(script)
# TODO: manual/custom index API
def multi_get_vertices(self,id_list):
path = build_path(self.multi_get_path,"vertices")
idList = build_url_list(id_list)
params = dict(idList=idList)
return self.request.get(path,params)
def multi_get_edges(self,id_list):
path = build_path(self.multi_get_path,"edges")
idList = build_url_list(id_list)
params = dict(idList=idList)
return self.request.get(path,params)
def execute_transaction(self,transaction):
params = dict(tx=transaction.actions)
return self.request.post(self.transction_path,params)
