Javelin connectorEstablishes connections with a legacy screen application (IBM 3270, IBM 5250, Bull DKU 7107 or Videotex).
A Javelin connector, also named Legacy connector, represents a connection to a legacy system, based on a terminal emulation session. It allows Convertigo to connect to a mainframe application to perform transactions, that is to say navigate through legacy screens and either:
• extract data into a proper XML document (CLI),
• on-the-fly webize legacy screens (CLP).
Javelin connector is needed by Convertigo to connect to legacy applications. Once connected, all tasks (screen classes detection, data extraction, browsing, etc.) associated with the Javelin connector can be carried out as defined in the project thanks to several objects:
• Screen classes,
• Criteria,
• Extraction rules,
• Javelin transactions,
• Screen classes handlers.
| Property | Type | Category | Description |
|---|---|---|---|
| Comment | String | standard | Describes the object comment to include in the documentation report. This property generally contains an explanation about the object. |
| Connection address | String | standard | Defines the connection address. The connection address of a Javelin connector is composed of: • a destination address, as a hostname (or IP adress) and optionally a port, • a connection type: most often DIR for direct connection, it can also take EIC or TCP as value, • a connection parameter, optional. The connection parameter has different meanings according to the emulator: • 3270: TN3270 device name, • 5250: TN5250 device name, • DKU: MAILBOX, • Minitel: service code (e.g. ‘3615SNCF’). It can be defined using an automatic numbering syntax managed by Convertigo engine: PREFIX<POOL:x-y/z>SUFFIX. This syntax will automatically generate a pool of “auto-numbered connection parameters”, the Javelin connector will use one of them when a new connection starts. This syntax is composed of the following elements: • PREFIX: any prefix string to start the device name or service code, • <POOL:x-y/z>: incremental number from x to y on z digits (for example <POOL:1-99/2> meaning an incremental number from 1 to 99 on 2 digits, i.e. from 01 to 99), • SUFFIX: any suffix string to end the device name or service code. Notes: • When a connection using an “auto-numbered connection parameter” is closed, the parameter is released in the pool and can be used again. • This pool of “auto-numbered connection parameters” works like a round robin: when released, an “auto-numbered connection parameter” is queued at the end of the pool. It will be re-used only when all others have been used before. • The pool of “auto-numbered connection parameters” will not work in Convertigo Studio context, only works in Convertigo server. |
| Emulator | String | standard | Defines the emulator associated with the connector. This property takes one of the following values: • Bull DKU 7107, • IBM 3270, • IBM 5250 (AS/400), • Videotex (Minitel), • Unix (VT220). |
| Billing Java class | String | expert | Defines the Java class name executed for billing pruposes. Convertigo supports a plugin architecture offering billing functionalities. Set the name of the billing class to be called by Convertigo for billing purposes. |
| Carioca authentication | boolean | expert | Defines whether the connector requires a Carioca authentication. Set to true if you require that only Carioca-authenticated users be able to use this connector. |
| Connection synchronization code | String | expert | Defines the code to execute for synchronization purposes after connecting the emulator to the host. This property allows the developer to program a code to be executed to synchronize the emulator after its connection, before executing any transaction. It uses JavaScript code as Javelin transaction core. |
| Enable SSL | boolean | expert | Defines whether a SSL connection should be used. |
| End transaction | String | expert | Defines the transaction to execute before removing the context. When a Convertigo context is removed, the specified “End transaction” is executed. Place in this transaction any clean up code, for example a Logout transaction. |
| IBM terminal type | String | expert | Defines the IBM terminal type. This property allows to override the value of the TerminalType configuration property. Depending on the Emulator property value, this overridden configuration property is present in different files, and this IBM terminal type property can take different values. For IBM 3270 emulator: • the TerminalType configuration property is defined in “TerminalSNA.txt” configuration file, • its default value is positioned to “IBM-3278”, • it can be overridden by IBM terminal type property to IBM-3278 (corresponding to old 3270), • or it can be overridden by IBM terminal type property to IBM-3279 (default value for 3270). For IBM 5250 emulator: • the TerminalType configuration property is defined in “TerminalAS400.txt” configuration file, • its default value is positioned to “IBM-5250”, • it can be overridden by IBM terminal type property to IBM-3179 (default value for 5250). |
| Language | int | expert | Defines the language used within the emulator. This property value has to be chosen amongst a list of available values. |
| Trust all SSL server certificates | boolean | expert | Defines if all server certificates should be automatically trusted for SSL connections. |
| Virtual server | String | expert | Defines the name of the virtual server to use (if left empty, the primary virtual server is used). |