TransporterSender

Sends features to another FME workspace running in a different process, which may be located on the same machine or on a different machine.

To transport features from one FME process to another: use the TransporterSender transformer in the source FME workspace to send features to a TransporterReceiver transformer in the receiving FME workspace.

Note Used in conjunction with TransporterReceiver.

Usage Notes

To set up a feature stream between two FME workspaces using the TransporterReceiver and TransporterSender transformers:
- One workspace is the designated "establisher" of the transport stream. If there are multiple transport streams between workspaces, one workspace must be the establisher of all the streams, and the other will connect to those transport streams. This is regardless of whether the individual transporters are sending or receiving data.
- The establishing workspace must be started before the workspace that is connecting. A transporter cannot successfully connect to a transport stream that is not already established.
- For each transport channel, there must be a different port that is used for each server machine.
- You can use an arbitrary number of transporters within a workspace.
- Supports IPv6.

Configuration

Input Ports

Output Ports

This transformer has no output ports.

Parameters

General

Transfer Mode	Specify how you want to transfer data. The transfer mode must be the same for both the TransporterSender and the TransporterReceiver. Stream: Feature data is transferred over the network connection as raw binary data. TCP/IP: All feature data will be transferred over the network connection. TCP/IP (Attribute): Only the value of a selected attribute is streamed. File: The feature data will be saved to disk and the location of the file will be sent over the TCP/IP connection.
Initiation Sequence	The Initiation Sequence specifies which Transporter endpoint is responsible for establishing the Transport stream (ESTABLISH), and which is responsible for connecting (CONNECT). Note The workspace that establishes the transfer mode must be running before the connecting workspace. The transfer mode must be consistent if there are multiple transport streams between two workspaces.
Establishing Host	This parameter is only needed by the workspace with the Initiation Sequence parameter set to CONNECT, and only when the workspaces are running on different machines. One of the primary uses for this parameter will be local to a machine in order to partition large workspaces into smaller components that each have their own address space.
Port or Service to Use	Specify either a port number or a service (for example, http, ftp, telnet, imap, gopher, pop3, www, and smtp are services that are typically associated with well-known port numbers). The default value is 8586.
File Name	This parameter is only used when Transfer Mode is set to File. It specifies the base file name to use. Each file that is created will have a -<integer> appended to the end of the name to keep all files unique. Example: If the File Name is features.fft, the first file created is features-0.fft, the second file created is features-1.fft, and so on. The full path of the file will be passed to the receiver and the receiver must be able to access the file from the same path (drive letter included).
Features to Save per File	This parameter is only used when Transfer Mode is set to File. It specifies how many features to write to a file before sending the location of the file to the receiver.
Attribute to Stream	Enabled when Transfer Mode is TCP/IP (Attribute). Specify the attribute containing values to send.

Editing Transformer Parameters

Transformer parameters can be set by directly entering values, using expressions, or referencing other elements in the workspace such as attribute values or user parameters. Various editors and context menus are available to assist. To see what is available, click beside the applicable parameter.

How to Set Parameter Values

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters.

Using the Text Editor

The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.

Text Editor

Using the Arithmetic Editor

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

Expressions and strings can include a number of functions, characters, parameters, and more.

When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Creating and Modifying User Parameters	Create your own editable parameters.

Dialog Options - Tables

Table Tools

Transformers with table-style parameters have additional tools for populating and manipulating values.

Row Reordering

Enabled once you have clicked on a row item. Choices include:

Add a row
Remove a row
Move current row up one
Move current row down one
Move current row to top
Move current row to bottom

Cut, Copy, and Paste

Enabled once you have clicked on a row item. Choices include:

Cut a row - delete and copy to clipboard
Copy a row to the clipboard
Paste a row from the clipboard

Cut, copy, and paste may be used within a transformer, or between transformers.

Filter

Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output.

Import

Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.

Reset/Refresh

Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers.

Note: Not all tools are available in all transformers.

For more information, see Transformer Parameter Menu Options.

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