Problem in saving push object list in XML

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By sakshi , 25 September, 2019
Forums
Gurux DLMS for Java

Hi,

I am trying to save pushObjectList in xml using save method of GXDLMSPushSetup. But it is giving exception as follows.

java.lang.NullPointerException
at gurux.dlms.objects.GXXmlWriter.appendSpaces(GXXmlWriter.java:110)
at gurux.dlms.objects.GXXmlWriter.writeStartElement(GXXmlWriter.java:131)
at gurux.dlms.objects.GXDLMSPushSetup.save(GXDLMSPushSetup.java:484)
at le.dlms.client.LEDLMSData.readPushSetup(LEDLMSData.java:682)
at le.dlms.client.RunDLMS.main(RunDLMS.java:131)

Please help me to get out of it.

I am using gurux.dlms version 3.0.1

sakshi

6 years 10 months ago

Hi

I have saved xml by adding writer.writeStartDocument(); line in save method of GXDLMSPushSetup.
But now i am getting exception while loading this xml.

It gives exception of invalid call of getName.
java.lang.IllegalStateException: Illegal to call getName() when event type is START_DOCUMENT. Valid states are START_ELEMENT, END_ELEMENT2019-09-25 16:20:27 INFO GXDLMSReader:128 - DisconnectRequest

at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.getName(Unknown Source)
at gurux.dlms.objects.GXXmlReader.getName(GXXmlReader.java:129)
at gurux.dlms.objects.GXXmlReader.readElementContentAsInt(GXXmlReader.java:201)
at gurux.dlms.objects.GXXmlReader.readElementContentAsInt(GXXmlReader.java:195)
at gurux.dlms.objects.GXDLMSPushSetup.load(GXDLMSPushSetup.java:458)
at le.dlms.client.LEDLMSData.readPushSetup(LEDLMSData.java:650)
at le.dlms.client.RunDLMS.main(RunDLMS.java:131)

What to do??

Kurumi

6 years 10 months ago

Hi,

We have tested this with a few meters but it works without problems. Content of the data must be different.

Can you read push object of your meter with GXDLMSDirector. After reading the push object,
select Push object from the tree and press the right mouse button. Select "Save values as..." and save read push list to the meter.

Send saved xml file to me by email.

BR,

Mikko

Kurumi

6 years 10 months ago

Hi,

Are you calling this method directly or are you using GXDLMSObjectCollection.save method to save it?

BR,
Mikko

Kurumi

6 years 10 months ago

Hi,

OK. This is the reason. Don't call it directly. Use GXDLMSObjectCollection.save method and it works like should be.

BR,

Mikko