Hello Friends,
Here i have published all possible ways to override Liferay classes and properties for which we were using hook in older Liferay version.
1) Create Custom portlet data handler
@Component(property = {
"javax.portlet.name=com.sample.portlet"
},
service = PortletDataHandler.class
)
public class SamplePortletDataHandler extends BasePortletDataHandler
{
// Override methods which you required to override
}
2) Create Custom Model Listner
@Component(immediate = true,
service = ModelListener.class
)
public class LayoutModelListener extends BaseModelListener<Layout>
{
// Override methods which you required
}
3) Create Custom workflow handler
@Component(property = {"model.class.name=com.sample.model.SampleEntity"},
service = WorkflowHandler.class
)
public abstract class SampleWorkflowHandler extends BaseWorkflowHandler
{
// Override methods which you required
}
4) Custom Action
@Component(property = {
"javax.portlet.name=" + PollsPortletKeys.POLLS,
"javax.portlet.name=" + PollsPortletKeys.POLLS_DISPLAY,
"mvc.command.name=/polls/edit_question"
},
service = MVCActionCommand.class
)
public class CustomMVCActionCommand extends BaseMVCActionCommand
{
// Override methods which you required
}
5) Custom Render
@Component(property = {
"javax.portlet.name=" + PollsPortletKeys.POLLS_DISPLAY,
"mvc.command.name=/polls_display/view"
},
service = MVCRenderCommand.class
)
public class CustomActionMVCRenderCommand implements MVCRenderCommand
{
// Override methods which you required
}
6) Override Liferay Language Properties
@Component(property = { "language.id=en_US" },
service = ResourceBundle.class
)
public class ENResourceBundleComponent extends ResourceBundle {
@Override
protected Object handleGetObject(String key) {
return _resourceBundle.getObject(key);
}
@Override
public Enumeration<String> getKeys() {
return _resourceBundle.getKeys();
}
private final ResourceBundle _resourceBundle = ResourceBundle.getBundle(
"content.Language", UTF8Control.INSTANCE);
}
7) Override Liferay Module Language Properties
@Component(immediate = true,
property = {
"bundle.symbolic.name=com.liferay.polls.web",
"resource.bundle.base.name=content.Language",
"servlet.context.name=polls-web"
}
)
public class ResourceBundleLoaderComponent implements ResourceBundleLoader {
@Override
public ResourceBundle loadResourceBundle(String languageId) {
return _resourceBundleLoader.loadResourceBundle(languageId);
}
@Reference(target = "(bundle.symbolic.name=com.liferay.polls.web)")
public void setResourceBundleLoader(
ResourceBundleLoader resourceBundleLoader) {
_resourceBundleLoader = new AggregateResourceBundleLoader(
new CacheResourceBundleLoader(
new ClassResourceBundleLoader(
"content.Language",
ResourceBundleLoaderComponent.class.getClassLoader())),
resourceBundleLoader);
}
private AggregateResourceBundleLoader _resourceBundleLoader;
}
8) Override Liferay services
@Component(service = ServiceWrapper.class)public class CustomUserLocalService extends UserLocalServiceWrapper {
// Override methods which you require
}
Note:
Portal-ext.prioperties cannot be override through OSGi and you will have to manually update portal-ext.properties which we are keeping inside WEB-INF/classes
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