public void setDataSource(String dataSource) {
        this.dataSource = dataSource;
    }
<p>
The data provider of traffic and road network data used to calculate the routes. Indicates one of the available
providers:
</p>
<ul>
<li>
<p>
<code>Esri</code>
</p>
</li>
<li>
<p>
<code>Grab</code>
</p>
</li>
<li>
<p>
<code>Here</code>
</p>
</li>
</ul>
<p>
For more information about data providers, see <a
href="https://docs.aws.amazon.com/location/latest/developerguide/what-is-data-provider.html">Amazon Location
Service data providers</a>.
</p>

@param dataSource
       The data provider of traffic and road network data used to calculate the routes. Indicates one of the
       available providers:</p>
       <ul>
       <li>
       <p>
       <code>Esri</code>
       </p>
       </li>
       <li>
       <p>
       <code>Grab</code>
       </p>
       </li>
       <li>
       <p>
       <code>Here</code>
       </p>
       </li>
       </ul>
       <p>
       For more information about data providers, see <a
       href="https://docs.aws.amazon.com/location/latest/developerguide/what-is-data-provider.html">Amazon
       Location Service data providers</a>.
aws-java-sdk-location/src/main/java/com/amazonaws/services/location/model/CalculateRouteMatrixSummary.java