The Script connector provides the ability to perform functions or operations that are not otherwise available in the built-in connectors of CData Arc.
Script connectors use the powerful ArcScript scripting language to accomplish a wide range of custom behavior. The Script configured in the connector is run each time a document is placed in the Input tab for the connector. The input document can be read and modified in the script, or the input document can simply trigger an external function configured in the connector. Script connectors can also be configured to run on a schedule via Receive automation on the Automation tab.
These are a few of the tasks you can configure a Script connector to do:
- Replace values in the input document with data returned from custom SQL queries
- Call a custom Web service to invoke a specialized workflow
- Run an external script or executable via the sysExecute operation
After you decide the appropriate task for your Script connector, read the Scripting documentation to explore how to call various operations using ArcScript.
This section contains all of the configurable connector properties.
Settings related to the core operation of the connector.
- Connector Id The static, unique identifier for the connector.
- Connector Type Displays the connector name and a description of what it does.
- Connector Description An optional field to provide a free-form description of the connector and its role in the flow.
- Script The script to execute. The script input and output parameters are listed at the top of each Script connector in an info tag. These parameters should be referenced but not edited.
Settings related to the automatic processing of files by the connector.
- Send Whether messages arriving at the connector are automatically processed.
- Retry Interval The number of minutes that the connector waits before retrying a failed script execution.
- Max Attempts The number of times that the connector retries a failed script execution before raising an error.
- Receive Whether the connector should automatically run the script on a configured schedule.
- Execution Interval The unit of measure to use for the receive automation schedule (such as Minutes, Hours, or Days).
- Minutes Past the Hour The minutes offset for an hourly schedule. Only applicable when the interval setting above is set to Hourly. For example, if this value is set to 5, the automation service downloads at 1:05, 2:05, 3:05, etc.
- Time The time of day that the attempt should occur. Only applicable when the interval setting above is set to Daily, Weekly, or Monthly.
- Day The day on which the attempt should occur. Only applicable when the interval setting above is set to Weekly or Monthly.
- Minutes The number of minutes to wait before attempting the download. Only applicable when the interval setting above is set to Minute.
- Cron Expression A five-position string representing a cron expression that determines when the attempt should occur. Only applicable when the interval setting above is set to Advanced.
Settings related to the allocation of resources to the connector.
- Max Workers The maximum number of worker threads consumed from the threadpool to process files on this connector. If set, this overrides the default setting on the Settings > Automation page.
- Max Files The maximum number of files sent by each thread assigned to the connector. If set, this overrides the default setting on the Settings > Automation page.
Settings not included in the previous categories.
- Processing Delay The amount of time (in seconds) by which the processing of files placed in the Input folder is delayed. This is a legacy setting. Best practice is to use a File connector to manage local file systems instead of this setting.
- Save to Sent Folder Check this to copy files processed by the connector to the Sent folder for the connector.
- Sent Folder Scheme Instructs the connector to group messages in the Sent folder according to the selected interval. For example, the Weekly option instructs the connector to create a new subfolder each week and store all messages for the week in that folder. The blank setting tells the connector to save all messages directly in the Sent folder. For connectors that process many messages, using subfolders helps keep messsages organized and improves performance.
- Log Level The verbosity of logs generated by the connector. When you request support, set this to Debug.
- Log Subfolder Scheme Instructs the connector to group files in the Logs folder according to the selected interval. For example, the Weekly option instructs the connector to create a new subfolder each week and store all logs for the week in that folder. The blank setting tells the connector to save all logs directly in the Logs folder. For connectors that process many transactions, using subfolders helps keep logs organized and improves performance.
- Log Messages Check this to have the log entry for a processed file include a copy of the file itself. If you disable this, you might not be able to download a copy of the file from the Input or Output tabs.
Miscellaneous settings are for specific use cases.
- Other Settings Enables you to configure hidden connector settings in a semicolon-separated list (for example,
setting1=value1;setting2=value2). Normal connector use cases and functionality should not require the use of these settings.