[dspace-tech] Hibernate and Enum

Stefan Fritzsche Wed, 29 Mar 2017 11:48:18 -0700

Hi,

the last few hours i try to implement a enum to represent the status of the bagit container in the asseststore.


The code snip is from my Bagit object

@Enumerated(EnumType.ORDINAL)
@Column(name = "status")
 private BagitStatus status;

and this is the BagitStatus

public enum  BagitStatus {
    DBONLY,
    CREATED,
    .....

The column status is from the datatype int. The building process runs without errors. But if start the tomcat the xmlui Webapp crash with the following stacktrace:

SEVERE: Exception sending context initialized event to listener instance of class org.dspace.app.util.DSpaceWebappListener

java.lang.NullPointerException

at org.dspace.core.AbstractHibernateDAO.getHibernateSession(AbstractHibernateDAO.java:48) at org.dspace.core.AbstractHibernateDAO.create(AbstractHibernateDAO.java:38) at org.dspace.app.util.WebAppServiceImpl.create(WebAppServiceImpl.java:49) at org.dspace.app.util.AbstractDSpaceWebapp.register(AbstractDSpaceWebapp.java:75) at org.dspace.app.util.DSpaceWebappListener.contextInitialized(DSpaceWebappListener.java:31) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5068) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5584) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

        at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

        at java.lang.Thread.run(Thread.java:745)

Here are the dspace.log:

2017-03-29 20:34:19,001 FATAL org.dspace.core.Context @ Cannot obtain the bean which provides a database connection. Check previous entries in the dspace.log to find why the db failed to initialize. 2017-03-29 20:34:21,270 INFO org.dspace.core.Context @ abort() was called on a closed Context object. No changes to abort. 2017-03-29 20:34:21,350 ERROR org.dspace.core.Context @ Exception aborting context

java.lang.NullPointerException
        at org.dspace.core.Context.abort(Context.java:532)

at org.dspace.discovery.SolrServiceImpl.cleanIndex(SolrServiceImpl.java:493)

        at org.dspace.discovery.IndexClient.main(IndexClient.java:153)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:229) at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:81)

2017-03-29 20:34:21,440 ERROR org.dspace.discovery.SolrServiceImpl @
java.lang.NullPointerException

at org.dspace.core.AbstractHibernateDAO.getHibernateSession(AbstractHibernateDAO.java:48) at org.dspace.core.AbstractHibernateDAO.createQuery(AbstractHibernateDAO.java:116) at org.dspace.content.dao.impl.ItemDAOImpl.findAll(ItemDAOImpl.java:60) at org.dspace.content.ItemServiceImpl.findAllUnfiltered(ItemServiceImpl.java:195) at org.dspace.discovery.SolrServiceImpl.updateIndex(SolrServiceImpl.java:399)

        at org.dspace.discovery.IndexClient.main(IndexClient.java:154)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:229) at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:81) 2017-03-29 20:34:21,446 INFO org.dspace.discovery.IndexClient @ Done with indexing


Could someone give me a hint what is wrong with the enum.

Thanks for your help.
Stefan




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[dspace-tech] Hibernate and Enum

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