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RESTful API Reference

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document describes the OPS APIs supported by the device, including OPS-supported operations, request examples, elements in the requests, response examples, elements in the responses, and response status codes.
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Subscribe to Command Events

Subscribe to Command Events

  • Function Description

    The OPS ERE provides command event subscription.

    After you subscribe to command events, if the entered character strings of a command match the regular expression, the system executes the ops_execute() function in the Python script.

    This API can only be used in the ops_condition() function of the maintenance assistant script.

  • Command Prototype

    opsObj.cli.subscribe(tag, pattern, enter=False, sync=True, async_skip=False, sync_wait=30)

  • Parameter Description
    Table 3-851  Parameters supported by command event subscription APIs

    Method

    Description

    opsObj

    Specifies an OPS object. It is obtained using ops.ops() in instance mode.

    tag

    Specifies a condition ID. The value is a string of 1 to 8 case-sensitive characters that starts with a letter and contains letters, digits, or underscores (_). Enter quotation marks ("") or None for the only one condition. tag cannot be set to andor, or not.

    pattern

    Specifies a regular expression for matching commands.

    enter

    The value can be True or False.

    • True: matches a regular expression immediately after you press Enter.
    • False: matches a regular expression only after the system completes the keyword.

    sync

    Indicates whether the CLI terminal waits for script execution after a command event is triggered.

    • True: The CLI terminal waits for script execution.
    • False: The CLI terminal does not wait for script execution.

    async_skip

    Indicates whether the original command is skipped. (This setting takes effect only when sync is set to False.) The value can be True or False.

    • True: The original command is not executed.
    • False: The original command is executed.

    sync_wait

    Indicates the time when the CLI terminal waits for script execution. (This setting takes effect only when sync is set to True.) The value is an integer ranging from 1 to 100.

  • Description of Return Values

    First return value: The value 0 indicates a success; the value 1 indicates a failure.

    Second return value: This value describes success or failure reasons, expressed in character strings.

  • Example
    test.py
    def ops_condition(_ops):
        _ops.cli.subscribe("con11","iproute",True,True,False,30)
        _ops.correlate("con11")
    def ops_execute(_ops):
        print "Hello World"
        return 0

    After you enter iproute on the CLI terminal, the terminal outputs "Hello World".

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Updated: 2019-03-21

Document ID: EDOC1000166567

Views: 22368

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