[Geotools-devel] [JIRA] (GEOT-5506) Problem with date formats on GML encoding (WFS Plugin)

Andreas W (JIRA) Fri, 02 Sep 2016 02:05:46 -0700

Title: Message Title

Andreas W created an issue

Issue Type:	Bug
Affects Versions:	15.1
Assignee:	Unassigned
Components:	xml
Created:	02/Sep/16 11:03 AM
Priority:	Medium
Reporter:	Andreas W

Hi all,

I am writing a client application using the WFS-Plugin to send WFS-T
requests.

The features I am sending have multiple geometry attributes, some might be
null.

On null geometries the GML encoding fails with the following stacktrace:

 
                                                                Exception in thread "main" java.lang.NullPointerException
    at org.geotools.xml.gml.GMLComplexTypes$MultiPolygonPropertyType.encode(GMLComplexTypes.java:6283)
    at org.geotools.xml.gml.GMLComplexTypes$AbstractFeatureType.print(GMLComplexTypes.java:4409)
    at org.geotools.xml.gml.GMLComplexTypes$AbstractFeatureType.encode(GMLComplexTypes.java:4387)
    at org.geotools.data.wfs.v1_0_0.xml.WFSTransactionComplexTypes$InsertElementType.encode(WFSTransactionComplexTypes.java:951)
    at org.geotools.data.wfs.v1_0_0.xml.WFSTransactionComplexTypes$TransactionType.encode(WFSTransactionComplexTypes.java:318)
    at org.geotools.xml.DocumentWriter.writeFragment(DocumentWriter.java:318)
    at org.geotools.xml.DocumentWriter.writeDocument(DocumentWriter.java:216)
    at org.geotools.data.wfs.v1_0_0.WFSTransactionState.commitPost(WFSTransactionState.java:296)
    at org.geotools.data.wfs.v1_0_0.WFSTransactionState.commit(WFSTransactionState.java:160)
    at org.geotools.data.DefaultTransaction.commit(DefaultTransaction.java:186)
 
                                                            

From the code:

                                                                org.geotools.xml.gml.GMLComplexTypes$MultiPolygonPropertyType.java
                                                            
 
                                                                 
public void encode(Element element, Object value, PrintHandler output,
            Map hints) throws IOException, OperationNotSupportedException {
            if ((value == null) || !(value instanceof MultiPolygon)) {
                throw new OperationNotSupportedException("Value is
"+value == null?"null":value.getClass().getName());
            }
...
}
 
                                                            

(Instead of the desired OperationNotSupportedException a NPE is thrown
because of operator precedence.)

Question:

Why the exception? It would have been quite easy to just skip null
values and write nothing instead.
What is the suggested solution? I have tried to encode an empty
Multipolygon instead but it fails, too.

Best regards any many thanks,
Andreas

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[Geotools-devel] [JIRA] (GEOT-5506) Problem with date formats on GML encoding (WFS Plugin)

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