[DL-Learner discussion] Adding DL Learner Components (specifically, Refinement Operators)

[Matthew B. <mat...@gm...>]

Hi All

I'm trying to experiment with modifications to DL-Learner initially by
experimenting with different Refinement Operators. To get the ball rolling,
I copied RhoDRDown.java and:
- changed the name to MpbVersion1 and adjusted the annotation to "mpb"
(where previously there was "rho")
- included a reference to my new file in the "componentClassNames" list of
AnnComponentManager.java
- then tried to run it by changing rho to mpb in an already-working con
file.

However it does not work.  Any ideas how I can make it work?

Thanks in advance,

Matthew

Below is the error that is thrown:

Initializing Component "mpb refinement operator"... OK (11ms)

An Error Has Occurred During Processing.
Cannot convert value of type
[org.dllearner.refinementoperators.MpbVersion1] to required type
[org.dllearner.refinementoperators.RhoDRDown] for property 'operator': no
matching editors or conversion strategy found
Stack Trace:
java.lang.RuntimeException:
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'alg': Initialization of bean failed; nested exception is
org.springframework.beans.ConversionNotSupportedException: Failed to
convert property value of type
'org.dllearner.refinementoperators.MpbVersion1' to required type
'org.dllearner.refinementoperators.RhoDRDown' for property 'operator';
nested exception is java.lang.IllegalStateException: Cannot convert value
of type [org.dllearner.refinementoperators.MpbVersion1] to required type
[org.dllearner.refinementoperators.RhoDRDown] for property 'operator': no
matching editors or conversion strategy found
at
org.dllearner.configuration.spring.DefaultApplicationContextBuilder.buildApplicationContext(DefaultApplicationContextBuilder.java:62)
at org.dllearner.cli.CLI.main(CLI.java:185)
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'alg': Initialization of bean failed; nested
exception is org.springframework.beans.ConversionNotSupportedException:
Failed to convert property value of type
'org.dllearner.refinementoperators.MpbVersion1' to required type
'org.dllearner.refinementoperators.RhoDRDown' for property 'operator';
nested exception is java.lang.IllegalStateException: Cannot convert value
of type [org.dllearner.refinementoperators.MpbVersion1] to required type
[org.dllearner.refinementoperators.RhoDRDown] for property 'operator': no
matching editors or conversion strategy found
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at
org.dllearner.configuration.spring.DefaultApplicationContextBuilder.buildApplicationContext(DefaultApplicationContextBuilder.java:60)
... 1 more
Caused by: org.springframework.beans.ConversionNotSupportedException:
Failed to convert property value of type
'org.dllearner.refinementoperators.MpbVersion1' to required type
'org.dllearner.refinementoperators.RhoDRDown' for property 'operator';
nested exception is java.lang.IllegalStateException: Cannot convert value
of type [org.dllearner.refinementoperators.MpbVersion1] to required type
[org.dllearner.refinementoperators.RhoDRDown] for property 'operator': no
matching editors or conversion strategy found
at
org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:485)
at
org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:516)
at
org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:510)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1406)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1365)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
... 10 more
Caused by: java.lang.IllegalStateException: Cannot convert value of type
[org.dllearner.refinementoperators.MpbVersion1] to required type
[org.dllearner.refinementoperators.RhoDRDown] for property 'operator': no
matching editors or conversion strategy found
at
org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:241)
at
org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:470)
... 16 more
Terminating DL-Learner...and writing stacktrace to: log/error.log