I'm trying to override the getDescriptiveName() method in com.liferay.portal.model.Group
I found a wrapper (com.liferay.portal.model.GroupWrapper), so I tried to write a hook as written in the documentation :
liferay-hook.xml:
<service>
<service-type>com.liferay.portal.model.GroupWrapper</service-type>
<service-impl>fr.villedeniort.hook.expando.GroupWrapperImpl</service-impl>
</service>
fr.villedeniort.hook.expando.GroupWrapperImpl.java:
public class GroupWrapperImpl extends GroupWrapper {
public GroupWrapperImpl(Group group) {
super(group);
}
#Override
public java.lang.String getDescriptiveName()
throws com.liferay.portal.kernel.exception.PortalException,
com.liferay.portal.kernel.exception.SystemException {
return super.getDescriptiveName();
}
When the hook is deployed, it raises an exception :
java.lang.NoSuchMethodException: fr.villedeniort.hook.expando.GroupWrapperImpl.<init>(com.liferay.portal.model.GroupWrapper)
I browse the code I found out that it breaks at this part for a reason I ignore:
Constructor<?> serviceImplConstructor = serviceImplClass.getConstructor(new Class<?>[] {serviceTypeClass});
At this point, variables have theses values:
serviceType "com.liferay.portal.model.GroupWrapper" (id=14829)
serviceImpl "fr.villedeniort.hook.expando.GroupWrapperImpl" (id=14830)
serviceTypeClass Class<T> (com.liferay.portal.model.GroupWrapper) (id=14831)
serviceImplClass Class<T> (fr.villedeniort.hook.expando.GroupWrapperImpl) (id=14832)
Do you have any idea?
Thanks!
You should have also a constructor without any argument. Now you have one with constuctor arguments, but there is no pure class constructor that java searches when it makes class instance. After calling the pure constructor java then calls the argumented one.
I had similar case in some other context and this was the solution. <init> tag on the error message refers on this kind of issue.
Apparently, it's not possible to hook other classes than Services, so I had to find a different way. For my case, I hooked a JSP and wrote my own method to get the right descriptive name from the hook.
Related
I am having problems to decorate the final class "DocumentGenerator" (in vendor/shopware/core/Checkout/Document/Service/DocumentGenerator.php) and overwrite the "generate" function inside of it.
I tried to decorate it the usual way, but an error is thrown because the "DocumentController" class excepts the original class and not my decorated one?
Argument 2 passed to Shopware\Core\Checkout\Document\DocumentGeneratorController::__construct() must be an instance of Shopware\Core\Checkout\Document\Service\DocumentGenerator
Its also not possible to extend from the class in my decorated class, because the "DocumentGenerator" is a final class.
My goal is to execute additional code, after an order document is generated. Previously I successfully used to decorate the "DocumentService" Class, but its marked as deprecated and shouldnt be used anymore. Also the "DocumentGenerator" class is used for the new "bulkedit" function for documents as of Version 6.4.14.0
I'm grateful for every tip.
As #j_elfering already wrote it's by design that you should not extend that class and therefore also shouldn't decorate it.
To offer a potential alternative:
Depending on what you want to do after a document has been generated it might be enough to add a subscriber to listen to document.written, check if it was a new document created and then work with the data from the payload for fetching/persisting data depending on that.
public static function getSubscribedEvents()
{
return [
'document.written' => 'onDocumentWritten',
];
}
public function onDocumentWritten(EntityWrittenEvent $event): void
{
foreach ($event->getWriteResults() as $result) {
if ($result->getOperation() !== EntityWriteResult::OPERATION_INSERT) {
// skip if the it's not a new document created
continue;
}
$payload = $result->getPayload();
// do something with the payload
}
}
Probably not what you want to hear but: The service is final in purpose as it is not intended to be decorated.
So the simple answer is you can't. Depending on your use case there may be other ways that don't rely on decoration.
I have created a custom mapper class as below but ABP does not automatically register and use it while mapping.
https://docs.abp.io/en/abp/4.4/Object-To-Object-Mapping#iobjectmapper-tsource-tdestination-interface
Sorry for less detail, i have added some below,
I have found that mycustommapperclass's interface different from my object mapper,
should I implement for all container types?
public class HierachyItemCustomMapper : IObjectMapper<HierachyItem, HierachyItemDto>, ITransientDependency
{
and my usage like
var nodeListDto = ObjectMapper.Map<IEnumerable<HierachyItem>, IEnumerable<HierachyItemDto>>(nodeList);
How can i handle this?
Obviously I am looking for a result instead of foreach iterator loop.
Edit:
it have found that it is known issue as below
https://github.com/abpframework/abp/issues/94
I've tried just before and it seems it works as expected.
This is my HierachyItemCustomMapper class which I've created in the Application layer. (It should be created in the Application layer.)
public class HierachyItemCustomMapper : IObjectMapper<HierachyItem, HierachyItemDto>, ITransientDependency
{
public HierachyItemDto Map(HierachyItem source)
{
return new HierachyItemDto
{
Name = source.Name
};
}
public HierachyItemDto Map(HierachyItem source, HierachyItemDto destination)
{
destination.Name = source.Name;
return destination;
}
}
I've just added a property named Name in my both classes (HierachyItem and HierachyItemDto) to test.
You probably didn't define it in the Application layer and that cause the problem. Can you check it?
It's simple , your defination is wrong
it should be like that
public class HierachyItemCustomMapper : IObjectMapper<IEnumerable<HierachyItem>,
IEnumerable<HierachyItemDto>>, ITransientDependency {}
as it searches for exact defination match , and if you want to add also capability of using ObjectMapper.Map<HierachyItem, HierachyItemDto>
you can make your custom mapper defination like that
public class HierachyItemCustomMapper : IObjectMapper<IEnumerable<HierachyItem>,
IEnumerable<HierachyItemDto>>, IObjectMapper<HierachyItem, HierachyItemDto> ,
ITransientDependency {}
and you will implement both
good luck
I use the Unbound ID library that has a class LDAPConnection which has no default constructor and which implements LDAPInterface. I produce the LDAPConnection as follows:
#Produces
#SimpleLdapConnection
#ApplicationScoped
public LDAPInterface createLdapConnection() throws GeneralSecurityException, LDAPException {
LDAPConnection conn = new LDAPConnection(host, port, username, password);
return conn;
}
I now want to inject this LDAPConnection class to a second producer, which should generate a Connection Pool:
#Inject
#SimpleLdapConnection
LDAPInterface simpleLdapConnection;
#Produces
#Default
#ApplicationScoped
public LDAPInterface produceLdapConnectionPool() throws GeneralSecurityException, LDAPException {
LDAPConnectionPool pool = new LDAPConnectionPool((LDAPConnection)simpleLdapConnection.g, connectionPoolInitialSize, connectionPoolMaxSize);
return pool;
}
To create the LDAPConnectionPool, I need to cast the simpleLdapConnection to an LDAPConnection (as it must be an LDAPConnection).
However, I get the error:
java.lang.ClassCastException:
org.jboss.weld.proxies.LDAPInterface$1687649628$Proxy$_$$_WeldClientProxy
cannot be cast to com.unboundid.ldap.sdk.LDAPConnection
at
at.rsg.lp.benutzerverwaltung.business.repository.LdapConnectionPoolProvider.produceLdapConnectionPool(LdapConnectionPoolProvider.java:59)
How can I get around this error?
P.S. changing the first producer to return an LDAPConnection does not work as I get the error "Injected normal scoped bean is not proxyable".
What you are running into, from CDI point of view, are the defined bean types of a producer method. This is backed by CDI specification.
In short, for producer methods, the bean types are derived from return types and the interfaces it implements. E.g. the actual implementation type is not included. The reason for that is exactly what you see when you saw when you tried to return the actual implementation type - impls often contain final methods or other bumps making them unproxyable.
There are two things I can think of to solve this:
[This one is likely to fail] Try putting #Typed annotation on your producer - I doubt it will work in this case, but it could be worth a shot. This annotation declares all the types the bean will have. You would use it like this - #Typed({LDAPInterface, LDAPConnection}).
[This should be a go-to option] If I were you, I would create a wrapper object just like you suggested. It won't really be all that ugly, just few bits and pieces of code should do the trick.
I have a scripting system where depending on where the script is executed you have access to different variables. I also want to have inferred types for a type of Auto-Completion for the script editor.
But when the types are inferred during the compile phase, I have no way of giving a Binding which explains to the compilation phase what types those dynamic variables have.
I have currently solved this by:
Not compiling the code with either #TypeChecked nor #CompileStatic but later manually running a subclassed StaticCompilationVisitor on the dynamically typed codebase and manually filling in the StaticTypesMarker.INFERRED_TYPE inside visitVariableExpression() for the dynamic variables that I know exists.
However, this seems like the wrong way to go about it, and I would actually like to work with the VariableScope instead. But it seems to be under rough lockdown inside the VariableScopeVisitor, so it's difficult to pop in a CustomVariableScope that dynamically does the lookups. I have managed to do this with reflection, replacing the VariableScopeVisitor inside CompilationUnit and currentScope and such inside VaribleScopeVisitor. It works, but I don't like working against hard-coded private field names.
This might be a long-winded way of asking: Is there an official way of handling a situation of static typing with dynamic variables? I cannot do this by setting scriptBaseClass for reasons too complex to explain here.
If the question is unclear, please tell me and I'll try to edit in better explanations.
The answer was to add a GroovyTypeCheckingExtensionSupport to a StaticTypeCheckingVisitor and then use visitClass on the first ClassNode of the CompilationUnit.
final ClassNode classNode = this.compilationUnit.getFirstClassNode();
final StaticCompilationVisitor visitor = new StaticCompilationVisitor(this.sourceUnit, classNode);
visitor.addTypeCheckingExtension(new MyGroovyTypeCheckingExtensionSupport(visitor, this.compilationUnit));
visitor.visitClass(classNode);
visitor.performSecondPass();
And create something like the class below:
private static class MyGroovyTypeCheckingExtensionSupport extends GroovyTypeCheckingExtensionSupport {
private static final ClassNode CLASSNODE_OBJECT = ClassHelper.make(Object.class);
public MyGroovyTypeCheckingExtensionSupport(StaticTypeCheckingVisitor typeCheckingVisitor, CompilationUnit compilationUnit) {
super(typeCheckingVisitor, "", compilationUnit);
}
#Override
public boolean handleUnresolvedVariableExpression(VariableExpression vexp) {
final ClassNode type = this.getType(vexp);
if (type == null || type.equals(CLASSNODE_OBJECT)) {
if (vextp.getName().equals("something")) {
this.storeType(vexp, ClassHelper.make(SomeClass.class));
return true;
}
}
return false;
}
}
i have two jsf pages (home.jsf and employees.jsf) ,
home page has a button that navigates to employees page,
while navigating i store value in session scope
at (Managed bean)
public void putSessionAL(ActionEvent actionEvent) {
FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("key","value");
}
public String navigate() {
return "employees";
}
i want to change Label at employees viewObject from UIHints tab depending on value stored at session using the following groovy expression
adf.context.sessionScope.key
and changed trustMode to trusted but it fires the following exception
oracle.jbo.script.ExprScriptException: JBO-29114 ADFContext is not setup to process messages for this exception. Use the exception stack trace and error code to investigate the root cause of this exception. Root cause error code is JBO-25188. Error message parameters are {0=Employees.FirstName, 1=, 2=oracle.jbo.script.ExprSecurityException}
at oracle.jbo.script.ExprScriptException.throwException(ExprScriptException.java:316)
at oracle.jbo.script.ExprScriptException.throwExceptionWithExprDef(ExprScriptException.java:387)
at oracle.jbo.ExprEval.processScriptException(ExprEval.java:599)
at oracle.jbo.ExprEval.doEvaluate(ExprEval.java:697)
at oracle.jbo.ExprEval.evaluate(ExprEval.java:508)
at oracle.jbo.ExprEval.evaluate(ExprEval.java:487)
at oracle.jbo.common.NamedObjectImpl.resolvePropertyRaw(NamedObjectImpl.java:680)
at oracle.jbo.server.DefObject.resolvePropertyRaw(DefObject.java:366)
One way to do it at the VO UIHint attribute label level will be programmaticaly by doing as follow :
In your VO go to the java tab and add the RowImpl java class
In the VORowImpl Add the following function
public String getMySessionLabel() {
return (String)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("key");
}
In the Label add the following EL expression :
adf.object.getMySessionLabel()
This technique allow you more control than pure EL, if you want to do more than getting from session for example. In your case pure EL, as you did, should work as well. (Would need to check what is wrong with yours, maybe just missing the
#{adf.context.sessionScope.key}
If you attempt to get your label from a method in viewRowImpl. So this will be executed at least once for each row. I think this solution isn't fit for your case.
anyway ADF as a framework added strong policy and validations in EL in general and especially in version 12.2.x.
The solution for you case as following:
Create new class in model layer which extends oracle.jbo.script.ExprSecurityPolicy class
Override checkProperty method.
#Override
public boolean checkProperty(Object object, String string, Boolean b) {
if (object.getClass().getName().equals("oracle.adf.share.http.ServletADFContext") && string.equals("sessionScope")) {
return true;
}
return super.checkProperty(object, string, b);
}
Open adf-config.xml source and in startup tag set your class ExprSecurityPolicy property.
like:
<startup ExprSecurityPolicy="model.CustomExprSecurityPolicy">