pipauwel/ifc.java

JAVA class library for IFC

ifc.java's Issues

MismatchedInputException

Hi,

while loading your sample the following error occures:

private void sample() {
         InputStream is = null;
         try {
             String filePath = "sample.ifcxml";
             File xml = new File(filePath);
             is = new FileInputStream(xml);
             XmlMapper m = new XmlMapper();
             m.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
             m.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, true);
             m.configure(DeserializationFeature.ACCEPT_EMPTY_ARRAY_AS_NULL_OBJECT, true);
             IfcProject proj = m.readValue(is, IfcProject.class);
             IfcLabel s = proj.getName();
             System.out.println(s.getValue());
         } catch (Exception ex) {
             System.out.println(ex.getMessage());
             Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
         } finally {
             //ignore null for now
                     is.close();
         }
     }

Cannot construct instance of `com.buildingsmart.tech.ifc.IfcKernel.IfcProject` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: (FileInputStream); line: 2, column: 1]
Nov 13, 2020 8:35:22 AM de.comp.Main start
SCHWERWIEGEND: null
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `com.buildingsmart.tech.ifc.IfcKernel.IfcProject` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: (FileInputStream); line: 2, column: 1]
	at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63)
	at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1329)
	at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1031)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1275)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:325)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeWithObjectId(BeanDeserializerBase.java:1235)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:192)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:161)
	at com.fasterxml.jackson.dataformat.xml.deser.WrapperHandlingDeserializer.deserialize(WrapperHandlingDeserializer.java:120)
	at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:130)
	at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:97)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeWithType(BeanDeserializerBase.java:1156)
	at com.fasterxml.jackson.dataformat.xml.deser.WrapperHandlingDeserializer.deserializeWithType(WrapperHandlingDeserializer.java:137)
	at com.fasterxml.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:68)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4001)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3058)
	at de.comp.Main.start(Main.java:35)
	at de.comp.Main.main(Main.java:21)

Any ideas what I might be doing wrong?

IfcObjectDefinition.isDecomposedBy is not a Set of IfcRelAggregates

The type of IfcObjectDefinition.isDecomposedBy in this repository is IfcRelAggregates, but it's supposed to be a Set of IfcRelAggregates according to the IFC version 4.1 specification (and even earlier version as far as I can tell).
I'm trying to fix this myself both in that class and in IfcParser but I'm getting all kinds of errors when doing mvn clean install, so I figured I'd post about it here in the meantime.

The following error occurred during file conversion

The following error occurred during file conversion：

Exception in thread "main" java.lang.IllegalArgumentException: Can not set com.buildingsmart.tech.ifc.IfcMeasureResource.IfcValue field com.buildingsmart.tech.ifc.IfcPropertyResource.IfcPropertySingleValue.nominalValue to com.buildingsmart.tech.ifc.IfcMeasureResource.IfcLogical
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81)
at java.lang.reflect.Field.set(Field.java:764)
at com.buildingsmart.tech.IO.IfcParser.loadToClassLibrary(IfcParser.java:324)
at com.buildingsmart.tech.IO.IfcParser.parseModelFromSPF(IfcParser.java:200)
at com.buildingsmart.tech.IO.IfcParser.main(IfcParser.java:102)

Model ID not exported? No way to link the exported data to the original model?

Hi,
In the ifc file there is an id for every object but in the xml or json generated I don't see this id, instead I see a new generated guid. We need to link some extra data to the actual model but without the original identifier I don't know how I can link the parsed data to the original object in the ifc model.

I am talking about the first number at the start of the line.

...
#1= IFCORGANIZATION($,'Autodesk Revit 2019 (ENU)',$,$,$);
#5= IFCAPPLICATION(#1,'2019','Autodesk Revit 2019 (ENU)','Revit');
#6= IFCCARTESIANPOINT((0.,0.,0.));
#9= IFCCARTESIANPOINT((0.,0.));
#11= IFCDIRECTION((1.,0.,0.));
#13= IFCDIRECTION((-1.,0.,0.));
...