Licensing options for this format begin with FME Professional Edition.
Note: Usage of the FME Server Stream reader or writer requires that you are also running FME Workbench, and that you have a running FME Server that can be reached by your machine through the network.
Overview
The FME Server Stream (Attribute) reader and writer allow FME Desktop applications such as FME Workbench to exchange attribute data with FME Server.
Different than other formats, the reader and writer of the FME Server Stream (Attribute) format are tightly coupled and need to work together with FME Server.
Reader Overview
The FME Server Stream (Attribute) reader allows a user to connect to an FME Server and browse repositories and specifies an FME workspace. If the workspace contains an FME Server Stream (Attribute) writer, the reader will obtain the destination feature types from the workspaces.
The basic reading process involves submitting an FME transformation job to FME Server using that workspace and receiving the attribute data streamed from FME Server by TCP/IP connection.
The attribute data produced by this reader is identical to the attribute data written to FME Server Stream (Attribute) writer in the workspace being run.
Writer Overview
The FME Server Stream writer streams features to FME Server Stream reader via a TCP/IP connection.
While making a connection, the reader works in ESTABLISH mode and the writer works in CONNECT mode.
Typical FME Server Stream (Attribute) Workflow
The following steps show a typical workflow for this format.
| Step 1 | A user creates an FME workspace which reads from any FME-supported format and writes to the FME Server Stream (Attribute) format. When the workspace is completed, the user publishes it to FME Server. |
| Step 2a |
The user opens another FME workspace and adds an FME Server Stream (Attribute) reader. In the reader's parameters dialog, the user specifies the host name and port of the FME Server along with a username and password to make a connection. When the connection is successful, the user can browse the repositories on the FME Server and choose the workspace created in step 1. Upon completing the parameters configuration, the FME Server Stream reader will obtain the destination feature types from the specified workspace. The user can continue authoring this workspace as usual, such as adding transformers and writers. When FME runs this workspace, the FME Server Stream (Attribute) reader will submit a transformation job using the specified workspace to the FME Server. When the job is running, the FME Server Stream writer will make a TCP/IP connection to the FME Server Stream reader and stream features to the reader. |
| Step 2b | The user opens the FME Universal Viewer and chooses the FME Server Stream (Attribute) reader. Similar to step 2a, the user needs to configure the workspace on FME Server through the reader's parameters dialog. When the FME Universal Viewer opens the reader, the reader will submit a transformation job and cause the features to be streamed to the FME Universal Viewer through TCP/IP connection. |
Note: Step 2a and 2b are two independent steps. Users can run either one step or both steps. They illustrate how FME Server Stream can be used within different FME Desktop applications.