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Posted to dev@camel.apache.org by "Claus Ibsen (JIRA)" <ji...@apache.org> on 2010/09/22 11:41:44 UTC
[jira] Resolved: (CAMEL-3143)
OsgiDefaultCamelContext.getTypeConverterRegistry() returns null
[ https://issues.apache.org/activemq/browse/CAMEL-3143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claus Ibsen resolved CAMEL-3143.
--------------------------------
Fix Version/s: 2.5.0
Resolution: Fixed
Fixed the OSGi type converter stuff.
trunk: 999836.
But Dozer is still not working in OSGi when loading the mapping files from classpath. Or can you get it working?
> OsgiDefaultCamelContext.getTypeConverterRegistry() returns null
> ----------------------------------------------------------------
>
> Key: CAMEL-3143
> URL: https://issues.apache.org/activemq/browse/CAMEL-3143
> Project: Apache Camel
> Issue Type: Bug
> Components: osgi
> Affects Versions: 2.4.0
> Reporter: Claes Redestad
> Assignee: Claus Ibsen
> Fix For: 2.5.0
>
>
> The showed up when using dozer as shown in http://camel.apache.org/dozer-type-conversion.html, whose DozerTypeConverterLoader tries to get the type converter registry using: {{{TypeConverterRegistry registry = camelContext.getTypeConverterRegistry();}}}
> Plausible error:
> {code:title=OsgiDefaultCamelContext.java}
> @Override
> protected TypeConverter createTypeConverter() {
> return new OsgiTypeConverter(bundleContext, getInjector());
> }
> {code}
> {code:title=DefaultCamelContext.java}
> public TypeConverterRegistry getTypeConverterRegistry() {
> if (typeConverterRegistry == null) {
> // init type converter as its lazy
> if (typeConverter == null) {
> getTypeConverter();
> }
> // type converter is usually the default one that also is the registry
> if (typeConverter instanceof DefaultTypeConverter) {
> typeConverterRegistry = (DefaultTypeConverter) typeConverter;
> }
> }
> return typeConverterRegistry;
> }
> {code}
> Error:
> getTypeConverter() returns an OsgiTypeConverter
> OsgiTypeConverter does not inherit from DefaultTypeConverter, thus the instanceof returns false
> => null is returned
> Solution:
> Lots of different ways to do this, and it's getting late here. In this case, maybe it's OsgiDefaultCamelContext's responsibility to also override getTypeConverterRegistry with something along the lines of:
> {code}
> @Override
> public TypeConverterRegistry getTypeConverterRegistry() {
> if (typeConverterRegistry == null) {
> // init type converter as its lazy
> if (typeConverter == null) {
> getTypeConverter();
> }
> // type converter is usually the default one that also is the registry
> if (typeConverter instanceof OsgiDefaultTypeConverter) {
> typeConverterRegistry = ((OsgiDefaultTypeConverter) typeConverter).getRegistry();
> }
> }
> return typeConverterRegistry;
> }
> {code}
> We've employed an (ugly) workaround in a local version of DozerTypeConverterLoader.java:
> {code:java}
> TypeConverter typeConverter = camelContext.getTypeConverter();
> DefaultTypeConverter registry = null;
> if (typeConverter instanceof DefaultTypeConverter) {
> registry = (DefaultTypeConverter)typeConverter;
> } else if (typeConverter instanceof OsgiTypeConverter) {
> OsgiTypeConverter osgiTypeConverter = (OsgiTypeConverter)typeConverter;
> registry = osgiTypeConverter.getRegistry();
> }
> {code}
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