apache_utils
This module provides automation support for Apache NiFi.
ApacheNifiUtils
Description
| This Class provides automation support for Apache Nifi. User can interact with Nifi processors by using this Class. | Apache NiFi is an open source software for automating and managing the flow of data between systems. | It's a powerful and reliable system to process and distribute data. | It provides a web-based User Interface for creating, monitoring, & controlling data flows.
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
__get_flow_file_details(uri)
Returns a list of files present in a NiFi queue.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
uri
|
str
|
URI received after capturing details. |
required |
Returns:
Name | Type | Description |
---|---|---|
list |
list | bool
|
List of files, or False if an error occurs. |
Examples:
files = self.__get_flow_file_details("uri")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
__get_processor(processor_id)
Retrieves the processor object.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
Processor ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
tuple[bool, Any]
|
Indicates if the processor was retrieved successfully. |
Examples:
success = ApacheUtils.Nifi().__get_processor("processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
about_nifi(server_name)
Retrieves details about this NiFi.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
server_name
|
str
|
NiFi server name. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the operation was successful, otherwise False. |
Examples:
info = ApacheUtils.Nifi().about_nifi("http://localhost:8080")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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call_request(method, url, headers, **kwargs)
Performs various HTTP requests (GET, POST, PUT, PATCH, DELETE).
Parameters:
Name | Type | Description | Default |
---|---|---|---|
method
|
str
|
The HTTP method (e.g., 'GET', 'POST'). |
required |
url
|
str
|
The request URL. |
required |
headers
|
dict
|
Request headers. |
required |
Kwargs
pstr_json (str): JSON data for the request body. pstr_payload (dict): Data for the request body. pdict_cookies (dict): Cookies for the request. pbln_allow_redirects (bool): Allow or disallow redirects. pstr_files (str): File path for file uploads. pbln_verify (bool): Verify SSL certificates. pstr_auth_type (str): Authentication type (e.g., 'basic', 'digest'). pstr_auth_username (str): Username for authentication. pstr_auth_password (str): Password for authentication. ptimeout (float or tuple): Timeout in seconds for the request. pdict_proxies (dict): Proxies for the request.
Returns:
Type | Description |
---|---|
requests.Response: The response object from the request. |
Examples:
response = ApacheUtils.Nifi(). call_request("GET", "https://www.samplesite.com/api", headers={"Accept": "application/json"})
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
change_nifi_processor_state(nifi_server, processor_id, state)
Changes the status of a NiFi processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
nifi_server
|
str
|
Server name. |
required |
processor_id
|
str
|
NiFi process ID. |
required |
state
|
str
|
RUNNING or STOPPED. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the operation was successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi(). change_nifi_processor_state("http://localhost:8080", "processor_id", "RUNNING")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
change_process_group_state(process_group_id, state=True)
Changes the status of a NiFi process group.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
process_group_id
|
str
|
NiFi process group ID. |
required |
state
|
bool
|
True to schedule the process group; False to unschedule. |
True
|
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the state change was successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi(). change_process_group_state("process_group_id", True)
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
change_processor_state(server_name, payload, nifi_id)
Starts or stops a NiFi processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
server_name
|
str
|
NiFi server name. |
required |
payload
|
str
|
Processor payload. |
required |
nifi_id
|
str
|
NiFi processor ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the operation was successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi().change_processor_state("http://localhost:8080", payload, "processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
change_remote_process_group_state(rpg_id, enable)
Changes the state of the remote process group.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
rpg_id
|
str
|
Remote Process Group ID. |
required |
enable
|
bool
|
True to enable; False to disable. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
Status of completion. |
Examples:
success = ApacheUtils.Nifi(). change_remote_process_group_state("remote_group_id", True)
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
check_process_group_status(process_group_id)
Checks the status of a process group.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
process_group_id
|
str
|
NiFi process group ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the process group status is available; otherwise, False. |
Examples:
status = ApacheUtils.Nifi().check_process_group_status("process_group_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
check_processor_status(processor_id)
Checks the status of a processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
NiFi processor ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the processor is available with a 200 response; otherwise, False. |
Examples:
status = ApacheUtils.Nifi(). check_processor_status("f03899a8-0193-1000-d8fc-53112a5e7c3a")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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clear_queues(processor_id, inbound_queue=True, outbound_queue=True)
Clears the in/out queues for the given processor based on input parameters.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
NiFi processor ID. |
required |
inbound_queue
|
bool
|
If True, clears the input queue for the processor. |
True
|
outbound_queue
|
bool
|
If True, clears the output queue for the processor. |
True
|
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi().clear_queues("processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
delete_queue_data(connection_id)
Deletes the contents of the queue in the connection.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
connection_id
|
str
|
Connection ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if deletion was successful; otherwise, False. |
Examples:
success = ApacheUtils.Nifi().delete_queue_data("connection_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
disable_processor(server_name, processor_id, max_wait_time=60, wait_interval=5, end_point='/nifi-api/processors/{processor_id}/run-status')
Disables the processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
server_name
|
str
|
NiFi server URL. |
required |
processor_id
|
str
|
NiFi processor ID. |
required |
max_wait_time
|
int
|
Max wait time to wait for processor to disable. |
60
|
wait_interval
|
int
|
Interval time to check the status. |
5
|
end_point
|
str
|
Service endpoint to invoke API call. |
'/nifi-api/processors/{processor_id}/run-status'
|
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi(). disable_processor("http://localhost:8080", "processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
enable_processor(server_name, processor_id, max_wait_time=60, wait_interval=5, end_point='/nifi-api/processors/{processor_id}/run-status')
Enables the processor and keeps it in a stopped state.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
server_name
|
str
|
NiFi server URL. |
required |
processor_id
|
str
|
NiFi processor ID. |
required |
max_wait_time
|
int
|
Max wait time to wait for processor to enable. |
60
|
wait_interval
|
int
|
Interval time to check the status. |
5
|
end_point
|
str
|
Service endpoint to invoke API call. |
'/nifi-api/processors/{processor_id}/run-status'
|
Returns:
Name | Type | Description |
---|---|---|
bool |
True if successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi(). enable_processor("http://localhost:8080", "processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
get_access_config()
Gets the access config of a NiFi instance.
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
Indicates if the function ran successfully. |
Examples:
success = ApacheUtils.Nifi().get_access_config()
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_component_connections(processor_id, return_list=False)
Retrieves the connections of a component/processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
Processor ID. |
required |
return_list
|
bool
|
Return type identifier. |
False
|
Returns:
Type | Description |
---|---|
bool
|
bool, dict: Tuple indicating 'execution_result' and connections |
dict
|
dictionary object. |
Examples:
success, connections = ApacheUtils.Nifi(). get_component_connections("processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_flow_file_count(connection_id)
Retrieves the count of flow files in a specified NiFi connection.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
connection_id
|
str
|
The ID of the connection. |
required |
Returns:
Name | Type | Description |
---|---|---|
int |
int
|
The count of flow files. |
Examples:
count = ApacheUtils.Nifi().get_flow_file_count("connection_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
get_flow_files_queue_details(connection_id)
Provides a list of files present in a NiFi queue.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
connection_id
|
str
|
NiFi connection ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
list |
list | bool
|
List containing the details of all files, or False if an error occurs. |
Examples:
files = ApacheUtils.Nifi().get_flow_files_queue_details("connection_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_key_path_value(**kwargs)
Extracts the value at the specified key path from the JSON data.
Kwargs
json: The JSON data (string or dictionary). keyPath: The path to the key, using the specified delimiter. keyPathType: Either "absolute" or "relative" (default: "absolute"). delimiter: The delimiter used in the key path (default: "/"). key: The key to retrieve the value for when using relative key paths.
Returns:
Type | Description |
---|---|
Any
|
The value associated with the key path. |
Raises:
Type | Description |
---|---|
ValueError
|
If required arguments are missing, invalid, or the key path |
JSONDecodeError
|
If the JSON data is invalid. |
Examples:
value = ApacheUtils.Nifi(). get_key_path_value(json='{"key": "value"}', keyPath='key')
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_process_group_id(pstr_process_group_name, parent_pg_id='root')
Retrieves the process group ID.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
pstr_process_group_name
|
str
|
Process group name. |
required |
parent_pg_id
|
str
|
Parent Process Group ID. |
'root'
|
Returns:
Name | Type | Description |
---|---|---|
bool |
tuple[bool, Any]
|
Indicates whether the operation was successful. |
Examples:
success = ApacheUtils.Nifi().get_process_group_id("process_group_name")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_process_group_q_count(process_group_id)
Gets the queue count of documents in the NiFi Process group.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
process_group_id
|
str
|
NiFi process group ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
int |
int
|
Queue count of the process group. |
Examples:
count = ApacheUtils.Nifi(). get_process_group_q_count("process_group_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_process_groups(pg_id='root', key_path=None)
Retrieves details of process groups under the mentioned process group recursively.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
pg_id
|
str
|
Process Group ID. |
'root'
|
key_path
|
str
|
Path of the field to be retrieved. |
None
|
Returns:
Name | Type | Description |
---|---|---|
list |
list
|
Process groups list or specified key path values. |
Examples:
process_groups = ApacheUtils.Nifi(). get_process_groups("process_group_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_processor_id(processor_name, parent_pg_id='root')
Retrieves the processor ID.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_name
|
str
|
Processor name. |
required |
parent_pg_id
|
str
|
Parent Process Group ID. |
'root'
|
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
Indicates if the processor ID was retrieved successfully. |
Examples:
success = ApacheUtils.Nifi().get_processor_id("processor_name")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_processor_properties(processor_id)
Retrieves the configuration properties of a specified NiFi processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
NiFi processor ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
dict |
dict | bool
|
A dictionary of properties if successful; otherwise, False. |
Examples:
properties = ApacheUtils.Nifi().get_processor_properties("processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_processor_q_count(processor_id)
Gets the queue count of documents in the NiFi Processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
NiFi processor ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
int |
int
|
Queue count of the processor. |
Examples:
count = ApacheUtils.Nifi().get_processor_q_count("processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_processors(pg_id='root', key_path=None)
Retrieves details of processors under the mentioned process group recursively.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
pg_id
|
str
|
Process Group ID. |
'root'
|
key_path
|
str
|
Path of the field to be retrieved. |
None
|
Returns:
Name | Type | Description |
---|---|---|
list |
list
|
Processors list or specified key path values. |
Examples:
processors = ApacheUtils.Nifi().get_processors("process_group_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_remote_process_groups(pg_id='root', key_path=None)
Retrieves all remote processor groups under the mentioned process group recursively.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
pg_id
|
str
|
Process Group ID. |
'root'
|
key_path
|
str
|
Path of the field to be retrieved. |
None
|
Returns:
Name | Type | Description |
---|---|---|
list |
list
|
Remote processor groups list or specified key path values. |
Examples:
remote_groups = ApacheUtils.Nifi().get_remote_process_groups("process_group_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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get_security_token(username, password, is_password_encrypted)
Generates the authorized token used for login into NiFi.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
is_password_encrypted
|
False
|
boolean value to check if password is encrypted |
required |
username
|
str
|
Username. |
required |
password
|
str
|
Password. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
Indicates if the token was generated successfully. |
Examples:
success = ApacheUtils.Nifi().get_security_token("username", "password")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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list_connections(pg_id='root', key_path=None)
Lists the connections of the queue in the process group.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
pg_id
|
str
|
Process Group ID. |
'root'
|
key_path
|
str
|
Path of the field to be retrieved. |
None
|
Returns:
Name | Type | Description |
---|---|---|
list |
list
|
Connections list or specified key path values. |
Examples:
connections = ApacheUtils.Nifi().list_connections("process_group_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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list_queue_data(connection_id)
Lists the information of the queue in this connection.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
connection_id
|
str
|
Connection ID. |
required |
Returns:
Name | Type | Description |
---|---|---|
ListingRequestEntity |
list | None
|
Lists the queue details. |
Examples:
queue_data = ApacheUtils.Nifi().list_queue_data("connection_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|
start_then_stop_pg(pg_id, wait_time=10)
Starts and stops the NiFi process group.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
pg_id
|
str
|
The NiFi process group ID. |
required |
wait_time
|
int
|
Time to wait before stopping the NiFi process group. |
10
|
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi().start_then_stop_pg("process_group_id", 10)
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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start_then_stop_processor(server_name, processor_id, min_wait_time=0, max_wait_time=50, wait_interval=5)
Starts and stops the given processor.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
server_name
|
str
|
NiFi server URL. |
required |
processor_id
|
str
|
NiFi processor ID. |
required |
min_wait_time
|
int
|
Minimum wait time in seconds. |
0
|
max_wait_time
|
int
|
Maximum wait time in seconds. |
50
|
wait_interval
|
int
|
Polling time to check each time in seconds. |
5
|
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if successful; otherwise, False. |
Examples:
result = ApacheUtils.Nifi(). start_then_stop_processor("http://localhost:8080", "processor_id")
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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update_processor_properties(processor_id, properties)
Updates the properties of a specified NiFi processor with the provided properties.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
processor_id
|
str
|
NiFi processor ID. |
required |
properties
|
dict
|
A dictionary containing the properties to update. |
required |
Returns:
Name | Type | Description |
---|---|---|
bool |
bool
|
True if the update was successful; otherwise, False. |
Examples:
success = ApacheUtils.Nifi(). update_processor_properties("processor_id", {"property_name": "value"})
Source code in libs\cafex_core\src\cafex_core\utils\apache_utils.py
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|