Upload started

asked 2013-04-02 09:59:21 +0800

nalanto
18

Hi All!

Is there any way to notify a composer class that an upload has been started using ZK 5 (5.0.11 CE)?

We get the onUpload event alright, but we can't figure out how to check whether an upload is in progress. The user gets the progress bar, but in the controller we have no info about that. So if it is in progress, and he tries to save, we won't save the attachment.

Also we add/delete some child components representing the attachment in onUpload, which throws an exception, because we are no longer on the page.

The stack trace of such an exception is the following:

org.zkoss.zk.ui.ComponentNotFoundException: Component not found: pTBQdt 
at org.zkoss.zk.ui.impl.DesktopImpl.getComponentByUuid(DesktopImpl.java:505) 
at org.zkoss.zk.au.http.UploadInfoService.service(UploadInfoService.java:69) 
at org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:683) 
at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1123) 
at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:562) 
at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:457) 
at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:465) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at keret.servlet.RMILookupFilterAbstract.doFilter(RMILookupFilterAbstract.java:34) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200) 
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
at java.lang.Thread.run(Thread.java:722)

Thanks in advance, nalanto