Cannot invoke "org.grails.orm.hibernate.cfg.Mapping.getBatchSize()" because "m" is null #1833
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Hi,
I'm using Grails 6.2.0 tyring to use the ConnectionSources API to add and remove Datasources at runtime, but got a NullPointerException (NPE). If the SAME code is exected during BootStrap it works, but on calling later at runtime via Service it fails
hibernateDatastore.getConnectionSources().addConnectionSource(
archivename,
dbconfig)
Steps to Reproduce
_hibernateDatastore.getConnectionSources().addConnectionSource(
archivename,
dbconfig)
Expected Behaviour
Should add the datasource and the corresponding tenant
Actual Behaviour
Fails with stacktrace
Caused by: java.lang.NullPointerException: Cannot invoke "org.grails.orm.hibernate.cfg.Mapping.getBatchSize()" because "m" is null
at org.grails.orm.hibernate.cfg.GrailsDomainBinder.bindSubClass(GrailsDomainBinder.java:1508)
at org.grails.orm.hibernate.cfg.GrailsDomainBinder.bindSubClasses(GrailsDomainBinder.java:1467)
at org.grails.orm.hibernate.cfg.GrailsDomainBinder.bindRoot(GrailsDomainBinder.java:1410)
at org.grails.orm.hibernate.cfg.GrailsDomainBinder.contribute(GrailsDomainBinder.java:161)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:292)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:86)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:479)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:85)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:709)
at org.grails.orm.hibernate.cfg.HibernateMappingContextConfiguration.buildSessionFactory(HibernateMappingContextConfiguration.java:287)
at org.grails.orm.hibernate.connections.HibernateConnectionSourceFactory.create(HibernateConnectionSourceFactory.java:86)
at org.grails.orm.hibernate.connections.AbstractHibernateConnectionSourceFactory.create(AbstractHibernateConnectionSourceFactory.java:39)
at org.grails.orm.hibernate.connections.AbstractHibernateConnectionSourceFactory.create(AbstractHibernateConnectionSourceFactory.java:23)
at org.grails.datastore.mapping.core.connections.AbstractConnectionSourceFactory.createRuntime(AbstractConnectionSourceFactory.java:70)
at org.grails.datastore.mapping.core.connections.InMemoryConnectionSources.addConnectionSource(InMemoryConnectionSources.groovy:51)
at org.grails.datastore.mapping.core.connections.AbstractConnectionSources.addConnectionSource(AbstractConnectionSources.groovy:96)
Environment Information
StackTrace during BootStrap > OK
StackTrace using a service --> FAILS
##############
Example code to reproduce: -> HibernateDataStore is set during bootstrap
package com.devc.storage
import com.devc.ConstraintService
import grails.compiler.GrailsCompileStatic
import groovy.util.logging.Slf4j
import org.grails.datastore.mapping.core.connections.ConnectionSource
import org.grails.datastore.mapping.core.connections.ConnectionSources
import org.grails.orm.hibernate.HibernateDatastore
import org.grails.orm.hibernate.connections.HibernateConnectionSourceSettings
import org.hibernate.SessionFactory
import org.springframework.transaction.annotation.Transactional
@GrailsCompileStatic
@slf4j
@singleton
class DataSourceManager {
private static String _CONFIGDBNAME = "config"
HibernateDatastore _hibernateDatastore
void init(HibernateDatastore hb) {
_hibernateDatastore = hb
addConfigDataSource()
}
private static Map<String, Object> getDatabaseConfig(String dbname, boolean isencrypted) {
Map<String, Object> dbconfig = [
"hibernate.hbm2ddl.auto": "update",
"dialect" : "org.hibernate.dialect.H2Dialect",
"driverClassName" : "org.h2.Driver",
"pooled" : "true",
"username" : ConstraintService.getProperty('info_app_dbuser'),
"password" : ConstraintService.getProperty('info_app_dbpass') + (isencrypted ? " " + ConstraintService.getProperty('info_app_dbpass') : ""),
"url" : "jdbc:h2:./" + dbname + ";LOCK_TIMEOUT=10000" + (isencrypted ? ";CIPHER=AES" : "")
] as Map<String, Object>
return dbconfig
}
HibernateDatastore getDataStore() {
return _hibernateDatastore
}
ConnectionSource addConfigDataSource() {
ConnectionSource s = _hibernateDatastore.getConnectionSources().getConnectionSource(_CONFIGDBNAME)
if (!s) {
Map<String, Object> dbconfig = getDatabaseConfig(ConstraintService._APPLICATION_NAME + "-" + _CONFIGDBNAME, false)
s = _hibernateDatastore.getConnectionSources().addConnectionSource(
_CONFIGDBNAME,
dbconfig)
log.info "Datasource added for system database" + _CONFIGDBNAME
}
return s
}
Set getConnectionSourceNames() {
Set result = new HashSet()
ConnectionSources<SessionFactory, HibernateConnectionSourceSettings> connectionSources = _hibernateDatastore.getConnectionSources()
for (ConnectionSource<SessionFactory, HibernateConnectionSourceSettings> connectionSource in connectionSources) {
result.add(connectionSource.name)
//println "Name $connectionSource.name -> $connectionSource.source -> $connectionSource.settings"
}
return result
}
ConnectionSource addArchiveDataSource(String archivepath, String archivename) {
ConnectionSource s = _hibernateDatastore.getConnectionSources().getConnectionSource(archivename)
if (!s) {
Map<String, Object> dbconfig = getDatabaseConfig(archivepath + "/" + archivename + "/archive", true)
s = _hibernateDatastore.getConnectionSources().addConnectionSource(
archivename,
dbconfig)
log.info "Datasource added for archive " + archivename
}
return s
}
void removeArchiveDataSource(String archivename) {
ConnectionSource s = _hibernateDatastore.getConnectionSources().getConnectionSource(archivename)
if (s) {
if (s == _hibernateDatastore.getConnectionSources().getDefaultConnectionSource()) {
throw new Exception("NOT ALLOWED to close the default connection, stupid!")
}
// Closing connection
s.close()
log.info "Datasource closed for archive " + archivename
}
}
}
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