How to implement OnDeleteNodePolicy for deleting user?

[jeffreyman]

We want to add custom code when deleting user. We have tried to use OnDeleteNodePolicy or BeforeDeleteNodePolicy, but failed.

Here is custom code:

public void beforeDeleteNode(NodeRef nodeRef) {
String username = serviceRegistry.getPersonService().getPerson(nodeRef).getUserName();
UserInfoDao.removeUserInfo(username); //remove user in custom db
}

Here is error message:

2020-12-09 17:27:06,559 ERROR [extensions.webscripts.AbstractRuntime] [http-nio-8080-exec-1] Exception from executeScript: 11090001 Wrapped Exception (with status template): 11090022 Failed to execute script 'classpath*:alfresco/templates/webscripts/org/alfresco/repository/person/person.delete.js': 11090021 User does not exist and could not be created: user://alfrescoUserStore/28bdc3c9-ff7e-4ece-adec-b90439112a75
org.springframework.extensions.webscripts.WebScriptException: 11090001 Wrapped Exception (with status template): 11090022 Failed to execute script 'classpath*:alfresco/templates/webscripts/org/alfresco/repository/person/person.delete.js': 11090021 User does not exist and could not be created: user://alfrescoUserStore/28bdc3c9-ff7e-4ece-adec-b90439112a75
at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1139)
at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:171)
at org.alfresco.repo.web.scripts.RepositoryContainer$3.execute(RepositoryContainer.java:527)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:450)
at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:595)
at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:664)
at org.alfresco.repo.web.scripts.RepositoryContainer.executeScriptInternal(RepositoryContainer.java:435)
at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:315)
at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:399)
at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:210)
at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)
at org.alfresco.repo.web.scripts.AlfrescoWebScriptServlet.service(AlfrescoWebScriptServlet.java:43)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:68)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.alfresco.web.app.servlet.ClearSecurityContextFilter.doFilter(ClearSecurityContextFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:615)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1627)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)

[EddieMay]

Hi @jeffreyman 

The error says, " User does not exist and could not be created". Is this a case of calling the code at the wrong time (transaction conflict)? This blog post might help, & then there is also Jeff Pott's tutorial.

HTH,

[kaynezhang]

I think you'd better test if the node is a person node before calling your code

like following

QName nodeTyp = nodeService.getType(nodeRef)
if(ContentModel.TYPE_PERSON.equalsde before calling ){
//your code
}