public String getSourceArn() {
        return this.sourceArn;
    }
<p>
The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
</p>

@return The Amazon Resource Name (ARN) of the rule group that your own rule group is copied from.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/SourceMetadata.java