IBM InfoSphere Streams Version 4.1.1

Developing and running applications that use the TimeSeries Toolkit

SPL standard and specialized toolkits > com.ibm.streams.timeseries 3.2.0 > Developing and running applications that use the TimeSeries Toolkit

To create applications that use the TimeSeries Toolkit, you must configure either Streams Studio or the SPL compiler to be aware of the location of the toolkit.

Before you begin

Install IBM InfoSphere Streams. Configure the product environment variables by entering the following command:

source product-installation-root-directory/4.0.0.0/bin/streamsprofile.sh

About this task

After the location of the toolkit is communicated to the compiler, the SPL artifacts that are specified in the toolkit can be used by an application. The application can include a use directive to bring the necessary namespaces into scope. Alternatively, you can fully qualify the operators that are provided by toolkit with their namespaces as prefixes.

Procedure

Verify that you satisfy the RPM requirements. For more information, see the list of required RPMs for the SPL specialized toolkits in the product documentation.
Review the list of restrictions for the InfoSphere Streams specialized toolkits in the product documentation. For example, some numerical results on IBM Power Systems might be different from the results on x86_64 systems. This difference is due to the way the two platforms handle floating point numbers.
Configure the SPL compiler to find the toolkit root directory. Use one of the following methods:
- Set the STREAMS_SPLPATH environment variable to the root directory of a toolkit or multiple toolkits (with : as a separator). For example:
```
export STREAMS_SPLPATH=$STREAMS_INSTALL/toolkits/com.ibm.streams.timeseries
```
- Specify the -t or --spl-path command parameter when you run the sc command. For example:
```
sc -t $STREAMS_INSTALL/toolkits/com.ibm.streams.timeseries -M MyMain
```
  where MyMain is the name of the SPL main composite. Note: These command parameters override the STREAMS_SPLPATH environment variable.
- Add the toolkit location in InfoSphere Streams Studio.
Develop your application. To avoid the need to fully qualify the operators, add a use directive in your application.
- For example, you can add the following clauses in your SPL source file:
```
use com.ibm.streams.timeseries.analysis::*;
use com.ibm.streams.timeseries.distance::*;
use com.ibm.streams.timeseries.generators::*;
use com.ibm.streams.timeseries.modeling::*;
use com.ibm.streams.timeseries.preprocessing::*;
```
  You can also specify a use clause for individual operators by replacing the asterisk (*) with the operator name. For example:
```
use com.ibm.streams.preprocessing::ReSample;
```
Build your application. You can use the sc command or Streams Studio.
Start the InfoSphere Streams instance.
Run the application. You can submit the application as a job by using the streamtool submitjob command or by using Streams Studio.