def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist={"df_count": {1}, "model_count": {0}}
error, extra= IncomingEdgeValidityChecker.check_validity(node["id"], requireds_info, edges, checklist)
code=[]
shared_function_set = set()
if(error == ErrorTypes.NO_ERROR):
if ("portion" in extra["dfs"][0]):
df_name = "df_" + extra["dfs"][0]["source_id"] + "[" + str(extra["dfs"][0]["portion"]) + "]"
else:
df_name = "df_" + extra["dfs"][0]["source_id"]
code.append("query_" + node["id"] + "=" + df_name + '.selectExpr("CAST(' + node["parameters"]["unique_column_name"]["value"] + ' AS STRING) AS key", "to_json(struct(*)) AS value").writeStream.format("kafka").option("kafka.bootstrap.servers", ')
code.append(CodeGenerationUtils.handle_primitive(node["parameters"]["host"]["value"] + ":" + node["parameters"]["port"]["value"]) + ")")
code.append(".trigger(" + __generate_trigger_code(node) + ")")
code.append('.option("topic", ' + CodeGenerationUtils.handle_primitive(node["parameters"]["topic"]["value"]) + ")")
code.append('.option("checkpointLocation", ' + CodeGenerationUtils.handle_primitive(node["parameters"]["checkpointLocation"]["value"]) + ").start()")
code.extend([os.linesep, "query_" + node["id"], ".awaitTermination()", os.linesep])
args["additional_info"]["written_topics"].append({"topic_name": node["parameters"]["topic"]["value"], "host": node["parameters"]["host"]["value"], "port": node["parameters"]["port"]["value"]})
return code, shared_function_set, error
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {0}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
final_code = []
shared_function_set = set()
additional_local_code = []
errors = []
if (error == ErrorTypes.NO_ERROR):
error, is_schema_appropriate = DataSourceValidityChecker.check_validity(
node)
if (error == ErrorTypes.NO_ERROR):
my_args = {
"node_id": node["id"],
"shared_function_set": shared_function_set,
"additional_local_code": additional_local_code,
"errors": errors
}
# Must be a valid schema at this point.
param_string = CodeGenerationUtils.handle_parameter(
node["parameters"]["schema"], my_args)
gen_code = []
gen_code.append(
"df_" + node["id"] +
' = spark.readStream.format("kafka").option("kafka.bootstrap.servers", '
)
gen_code.append(
CodeGenerationUtils.handle_primitive(
node["parameters"]["host"]["value"] + ":" +
node["parameters"]["port"]["value"]) + ")")
gen_code.append('.option("subscribe", ' +
CodeGenerationUtils.handle_primitive(
node["parameters"]["topic"]["value"]) + ")")
gen_code.append(
'.option("startingOffsets", ' +
CodeGenerationUtils.handle_primitive(
node["parameters"]["startingOffsets"]["value"]) + ")")
gen_code.append(
'.load().select(from_json(col("value").cast("string"), ' +
param_string + ")")
# For streams, we will use timestamp as a key while writing to kafka topic in case.
gen_code.extend([
'.alias("value"), "timestamp").select("value.*", "timestamp")',
os.linesep
])
final_code = CodeGenerationUtils.merge_with_additional_code(
gen_code, additional_local_code)
return final_code, shared_function_set, error
def __arg_dict_to_string(args):
# Assuming that corresponding argument is a string which is appropriate for pre-defined datetime format.
code=["{"]
for arg in args:
if(arg in __set_of_datetime_arguments):
code.extend([CodeGenerationUtils.handle_primitive(arg), ": ", 'datetime.strptime("' + args[arg] + '", "' + __datetime_format + '")', ", "])
else:
code.extend([CodeGenerationUtils.handle_primitive(arg), ": ", CodeGenerationUtils.handle_primitive(args[arg]), ", "])
if (len(args) > 0):
code.pop()
code.append("}")
return ''.join(code)
def __generate_trigger_code(node):
trigger_type = node["parameters"]["trigger_type"]["value"]
if (trigger_type == "once"):
return "once=True"
else:
return trigger_type + "=" + CodeGenerationUtils.handle_primitive(
node["parameters"]["trigger_value"]["value"])
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {1}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
shared_function_set = set()
errors = []
code = []
if (error == ErrorTypes.NO_ERROR):
if ("portion" in extra["dfs"][0]):
df_name = "df_" + extra["dfs"][0]["source_id"] + "[" + str(
extra["dfs"][0]["portion"]) + "]"
else:
df_name = "df_" + extra["dfs"][0]["source_id"]
shared_function_set.add(SharedFunctionTypes.VECTOR_DISASSEMBLER)
code = [
"df_" + node["id"] + " = " + "vector_disassembler(" + df_name +
", " + CodeGenerationUtils.handle_primitive(
node["parameters"]["vector_column"]["value"]) + ")", os.linesep
]
return code, shared_function_set, error
def __handle_expression_string_only(node, args):
code = ["df_" + args["node_id"] + " = " + args["input_dfs"][0], os.linesep]
code.extend([
"df_" + args["node_id"] + " = " + "df_" + args["node_id"] + "." +
node["sql_name"] + "(" + CodeGenerationUtils.handle_primitive(
node["parameters"]["expression"]["value"]) + ")", os.linesep
])
return code
def __handle_in_op_out_trio(node, args):
in_op_out_trio_list = node["parameters"]["in_op_out_trio_list"]["value"]
code = ["df_" + args["node_id"] + " = " + args["input_dfs"][0], os.linesep]
code.extend(
["df_" + args["node_id"] + " = " + "df_" + args["node_id"] + ".agg("])
for elem in in_op_out_trio_list:
code.extend([
"F." + elem["operation"]["value"] + "(" +
CodeGenerationUtils.handle_primitive(elem["input_column"]["value"])
+ ").alias(" + CodeGenerationUtils.handle_primitive(
elem["output_column"]["value"]) + ")", ", "
])
# Assuming that there is at least 1 agg request. However, check this and produce error before got here...
code.pop()
code.extend([")", os.linesep])
return code
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {1}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
final_code = []
shared_function_set = set()
if (error == ErrorTypes.NO_ERROR):
if ("portion" in extra["dfs"][0]):
df_name = "df_" + extra["dfs"][0]["source_id"] + "[" + str(
extra["dfs"][0]["portion"]) + "]"
else:
df_name = "df_" + extra["dfs"][0]["source_id"]
if (error == ErrorTypes.NO_ERROR):
final_code = [
"correlation_" + node["id"] + " = " + "Correlation.corr(" +
df_name + ", " + CodeGenerationUtils.handle_primitive(
node["parameters"]["column"]["value"]) + ", " +
CodeGenerationUtils.handle_primitive(
node["parameters"]["method"]["value"]) + ")", os.linesep
]
final_code.extend([
"result_array_" + node["id"] + " = ",
"correlation_" + node["id"] + ".head()[0].toArray()",
os.linesep
])
# In the future, dynamically name columns according to an appropriate convention...
final_code.extend([
"df_" + node["id"] + " = sc.parallelize(" + "result_array_" +
node["id"] + ")",
".map(lambda x: [float(i) for i in x]).toDF()", os.linesep
])
return final_code, shared_function_set, error
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {1}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
code = []
shared_function_set = set()
if (error == ErrorTypes.NO_ERROR):
if ("portion" in extra["dfs"][0]):
df_name = "df_" + extra["dfs"][0]["source_id"] + "[" + str(
extra["dfs"][0]["portion"]) + "]"
else:
df_name = "df_" + extra["dfs"][0]["source_id"]
code.append("query_" + node["id"] + "=" + df_name +
".writeStream.format(" +
CodeGenerationUtils.handle_primitive(node["file_type"]) +
")")
code.append(".trigger(" + __generate_trigger_code(node) + ")")
code.append('.option("path", ' + CodeGenerationUtils.handle_primitive(
node["parameters"]["path"]["value"]) + ")")
code.append('.option("checkpointLocation", ' +
CodeGenerationUtils.handle_primitive(
node["parameters"]["checkpointLocation"]["value"]) +
").start()")
code.extend([
os.linesep, "query_" + node["id"], ".awaitTermination()",
os.linesep
])
args["additional_info"]["written_tables"].append(
{"table_path": node["parameters"]["path"]["value"]})
return code, shared_function_set, error
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist={"df_count": {0}, "model_count": {1}}
error, extra= IncomingEdgeValidityChecker.check_validity(node["id"], requireds_info, edges, checklist)
code=[]
shared_function_set = set()
if(error == ErrorTypes.NO_ERROR):
model_id=extra["models"][0]["source_id"]
code = ["model_" + model_id + ".save(" + CodeGenerationUtils.handle_primitive(node["parameters"]["model_path"]["value"]) + ")", os.linesep]
return code, shared_function_set, error
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {0}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
final_code = []
shared_function_set = set()
additional_local_code = []
errors = []
if (error == ErrorTypes.NO_ERROR):
error, is_schema_appropriate = DataSourceValidityChecker.check_validity(
node)
if (error == ErrorTypes.NO_ERROR):
my_args = {
"node_id": node["id"],
"shared_function_set": shared_function_set,
"additional_local_code": additional_local_code,
"errors": errors
}
if (is_schema_appropriate):
gen_code = CodeGenerationUtils.handle_instantination_or_call(
node["parameters"], "df_" + node["id"] + "=" +
"spark.read." + node["file_type"] + "(", my_args)
else:
# For safety, but consider it again
if ("schema" in node["parameters"]):
del node["parameters"]["schema"]
if (node["can_infer_schema"]):
node["parameters"]["inferSchema"] = {
"value": True,
"type": "boolean"
}
gen_code = CodeGenerationUtils.handle_instantination_or_call(
node["parameters"],
"df_" + node["id"] + "=" + "spark.read.format(" +
CodeGenerationUtils.handle_primitive(node["file_type"]) +
").load(", my_args)
final_code = CodeGenerationUtils.merge_with_additional_code(
gen_code, additional_local_code)
return final_code, shared_function_set, error
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {2}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
code = []
shared_function_set = set()
if (error == ErrorTypes.NO_ERROR):
df_names = __get_dfs_to_join(extra)
code.extend([
"df_" + node["id"] + "=" + df_names[0] + ".join(" + df_names[1] +
", " + CodeGenerationUtils.handle_primitive(
node["parameters"]["join_column"]["value"]) + ")", os.linesep
])
return code, shared_function_set, error
def __single_generation(node, df_name, args, model_elements_save_paths):
code = CodeGenerationUtils.handle_instantination_or_call(
node["parameters"],
'estimator_' + node["id"] + ' = ' + node["estimator_name"] + '(', args)
code.extend([
'model_' + node["id"] + "=" + 'estimator_' + node["id"] + ".fit(" +
df_name + ")", os.linesep
])
code.extend([
'df_' + node["id"] + "=" + 'model_' + node["id"] + '.transform(' +
df_name + ')', os.linesep
])
if (model_elements_save_paths is not None):
for elem in model_elements_save_paths:
code.extend([
'model_' + node["id"] + "." + elem +
".write.format('parquet').save(" +
CodeGenerationUtils.handle_primitive(
model_elements_save_paths[elem]["value"]) + ")", os.linesep
])
return code
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {1}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
final_code = []
shared_function_set = set()
additional_local_code = []
errors = []
if (error == ErrorTypes.NO_ERROR):
if ("portion" in extra["dfs"][0]):
df_name = "df_" + extra["dfs"][0]["source_id"] + "[" + str(
extra["dfs"][0]["portion"]) + "]"
else:
df_name = "df_" + extra["dfs"][0]["source_id"]
my_args = {
"node_id": node["id"],
"input_dfs": [df_name],
"shared_function_set": shared_function_set,
"additional_local_code": additional_local_code,
"errors": errors
}
gen_code = CodeGenerationUtils.handle_instantination_or_call(
node["parameters"], df_name + ".write.format(" +
CodeGenerationUtils.handle_primitive(node["file_type"]) +
").save(", my_args)
final_code = CodeGenerationUtils.merge_with_additional_code(
gen_code, additional_local_code)
if "path" in node["parameters"]:
args["additional_info"]["written_tables"].append(
{"table_path": node["parameters"]["path"]["value"]})
return final_code, shared_function_set, error
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist = {"df_count": {0}, "model_count": {0}}
error, extra = IncomingEdgeValidityChecker.check_validity(
node["id"], requireds_info, edges, checklist)
final_code = []
shared_function_set = set()
additional_local_code = []
errors = []
if (error == ErrorTypes.NO_ERROR):
error, is_schema_appropriate = DataSourceValidityChecker.check_validity(
node)
if (error == ErrorTypes.NO_ERROR):
my_args = {
"node_id": node["id"],
"shared_function_set": shared_function_set,
"additional_local_code": additional_local_code,
"errors": errors
}
# Must be a valid schema at this point.
param_string = CodeGenerationUtils.handle_parameter(
node["parameter"]["schema"], my_args)
gen_code = []
gen_code.extend([
"df_" + node["id"] + ' = spark.readStream.schema(' +
param_string + ")." + node["file_type"] + "(" +
CodeGenerationUtils.handle_primitive(
node["parameters"]["path"]["value"]) + ")", os.linesep
])
final_code = CodeGenerationUtils.merge_with_additional_code(
gen_code, additional_local_code)
return final_code, shared_function_set, error
def test_handle_primitive_for_string(self, value):
assert CodeGenerationUtils.handle_primitive(
value) == "\"" + value + "\""
def __create_bash_operator(task_id, args):
op_task_id = args["app_id"] + "_" + task_id
return ['Task_' + op_task_id + ' = BashOperator(task_id=' + CodeGenerationUtils.handle_primitive(op_task_id) + ", bash_command='" + args["bash_command"] + ' ' + CodeGenerationUtils.handle_primitive(op_task_id) + " ', dag=dag)"]
def generate_code(args):
node = args["node"]
requireds_info = args["requireds_info"]
edges = args["edges"]
checklist={"df_count": {1}, "model_count": {0}}
error, extra= IncomingEdgeValidityChecker.check_validity(node["id"], requireds_info, edges, checklist)
final_code=[]
shared_function_set = set()
if(error == ErrorTypes.NO_ERROR):
if ("portion" in extra["dfs"][0]):
df_name = "df_" + extra["dfs"][0]["source_id"] + "[" + str(extra["dfs"][0]["portion"]) + "]"
else:
df_name = "df_" + extra["dfs"][0]["source_id"]
if(error==ErrorTypes.NO_ERROR):
# For now, directly returns the correlation result (as a dataframe) which includes (in a row~):
# pValues: DenseVector
# degreesOfFreedom: list
# statistics: DenseVector
final_code=["df_" + node["id"] + " = " + node["parameters"]["test_type"]["value"] + ".test(" + df_name + ", " + CodeGenerationUtils.handle_primitive(node["parameters"]["features_column"]["value"]) + ", " + CodeGenerationUtils.handle_primitive(node["parameters"]["label_column"]["value"]) + ")", os.linesep]
return final_code, shared_function_set, error
def test_handle_primitive_for_nonstring(self, value):
assert CodeGenerationUtils.handle_primitive(value) == str(value)