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https://issues.apache.org/jira/browse/STREAMPIPES-643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637225#comment-17637225
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Florian Micklich commented on STREAMPIPES-643:
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I added the corrected version.
Some Variables declarations were missing.
Also for better understanding for the beginner user, another variables names
should be used!
[^GeofencingProcessor-1.java]
> unclear missleading example code writing own processor on website
> ------------------------------------------------------------------
>
> Key: STREAMPIPES-643
> URL: https://issues.apache.org/jira/browse/STREAMPIPES-643
> Project: StreamPipes
> Issue Type: Task
> Reporter: Florian Micklich
> Priority: Major
> Attachments: GeofencingProcessor-1.java, GeofencingProcessor.java
>
>
> I just wondering on the example with the 1 class processor here [1] [2].
> In the description is mentioned that
> Next, we are interested in the fields of the input event stream that contains
> the latitude and longitude value we would like to compute against the
> geofence center location as follows:
> {code:java}
> String latitudeFieldName = extractor.mappingPropertyValue("latitude-field");
> String longitudeFieldName = extractor.mappingPropertyValue("longitude-field");
> {code}
> 1) Shouldn't it be:
> {code:java}
> String latitudeFieldName =
> parameters.extractor().mappingPropertyValue("latitude-field");
> String longitudeFieldName =
> parameters.extractor().mappingPropertyValue("longitude-field");
> {code}
> 2) But this code snippet is is missing in "Your controller class should look
> as follows" example.
> 3) The latitudeFieldName is used in the onEvent Method as
> {code:java}
> float latitude =
> event.getFieldBySelector(latitudeFieldName).getAsPrimitive().getAsFloat();
> float longitude =
> event.getFieldBySelector(longitudeFieldName).getAsPrimitive().getAsFloat();
> {code}
> But the variables can not be resolved.
> I but the example code into a file but better overview
> [^GeofencingProcessor.java]
> [1]
> https://streampipes.apache.org/docs/docs/extend-tutorial-data-processors.html
> [2]
> https://github.com/apache/streampipes-website/blob/dev/documentation/docs/06_extend-tutorial-data-processors.md
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