So in this case, I need to click 2 times in menu Dashboard, how can I open a new window, in the first click? and this is the correct way to show one report with vaadin?
Hi Fabio,
in your case the problem is that the BroserWindowOpener adds a click listener on client side when it extends a component, so the window.open function is called next time you click the element.
You can create an instance of BroserWindowOpener and extend the menubar outside your command listener, and then in your listener you can simply call BroserWindowOpener.setResource(…).
Howere this will not work because BroserWindowOpener click listener on client side will be executed before your server side command listener.
A tricky way to achieve your result could be to extend BrowserWindowOpenerConnector so that window open is triggered on state change instead of on click;
this way click on menu item will fire your command listener, the command listener will set the resource on browser window opener and then,
at the end of the request, the BrowserWindowOpenerConnector should be notified of change of state and will open window.
Of course with this solution you need to recompile your widgetset.
Here is some sample code
public class MyOpenerState extends BrowserWindowOpenerState {
// Only needed to ensure change state
public long lastUpdated;
}
public class MyWindowOpener extends BrowserWindowOpener {
@Override
protected void setResource(String key, Resource resource) {
super.setResource(key, resource);
// forces state change when resource is set
getState().lastUpdated = Instant.now().toEpochMilli();
}
@Override
protected MyOpenerState getState() {
return (MyOpenerState)super.getState();
}
}
@Connect(MyWindowOpener.class)
public class MyWindowOpenerConnector extends BrowserWindowOpenerConnector {
@Override
public void onClick(ClickEvent event) {
// Do nothing on click
}
@OnStateChange("lastUpdated")
private void onLastUpdateChanged() {
// open window
super.onClick(null);
}
@Override
public MyOpenerState getState() {
return (MyOpenerState) super.getState();
}
}
And then in your UI
MenuBar menuBar = new MenuBar();
MyWindowOpener opener = new MyWindowOpener((Resource) null);
opener.extend(menuBar);
menuBar.addItem("Print A", (MenuBar.Command) selectedItem -> {
StreamResource res = doAllYouNeedToCreateTheResource();
res.setCacheTime(0);
opener.setResource(res);
});
With my example when I try to run in my client server I got nullpointer exception in line
return new ByteArrayInputStream(b);
After generate rel, I click again in button to download the rel, in dev works fine, but in prod dont. have some problem with session or something else?
For the nullpointer the problem seems to be in jasper report generation.
Have you checked logs on customer server to see if there are exceptions runnig JasperRunManager.runReportToPdf(…)?
StreamResource.StreamSource source = new StreamResource.StreamSource() {
public InputStream getStream() {
byte b = null;
try{
b = JasperRunManager.runReportToPdf(jasperReport, preencherParametros(), jsonDS);
};
StreamResource resourcesReport = new StreamResource(source, “Dashboard” + System.currentTimeMillis() + “.pdf”);
BrowserWindowOpener opener = new BrowserWindowOpener(resourcesReport);
opener.extend(downloadButton);
downloadButton.setVisible(true);
[/code]the error is in line
return new ByteArrayInputStream(b);
So the generation of rel are perfect( any problem he will popup one message because of try… catch, but the problem are when I click in downloadButton ( to open a new window with the rel) It`s possible to vaadin lost the session from the byte? cause he create the byte
on memory and not local dir.
As far as I can see the only way you can get a NullPointerException on ByteArrayInputStream creation is that yout byte array
b is null; and this can happen only if JasperRunManager.runReportToPdf(…) returns null or throws an Exception.
If you are sure that JasperRunManager.runReportToPdf(…) is not throwing exceptions yuo must investigate on runReportToPdf(…) execution itself.
By the way I’m not sure that you will see a vaadin notification if the generation throws exception because you are on a download request.
System.out.println(resourceLoader.CLASSPATH_URL_PREFIX);
to see my classpath And the app print:
"classpath: "
But when I click in downloadButton (opener.extend(downloadButton) in my View I got the error: resource not found at: classpath:/static/relatorio/DashboardCaixa.jasper
So, just to clarify, you have a spring boot project and you package it as a war archive;
.jasper and .jrxml files sources are located in src/main/resources/static/relatorios/ and inside the war they are in WEB-INF/classes/statics/realtorios.
Resource resource = resourceLoader.getResource(resourceLoader.CLASSPATH_URL_PREFIX+"/static/relatorios/ChequesGeral.jrxml");
System.out.println(resource.getFile().getAbsolutePath());
And he print:
net.sf.jasperreports.engine.JRException: Resource not found at: classpath:/static/relatorios/Cheques.jasper.
at net.sf.jasperreports.repo.RepositoryUtil.getResourceFromLocation(RepositoryUtil.java:153)
at net.sf.jasperreports.repo.RepositoryUtil.getReport(RepositoryUtil.java:112)
at net.sf.jasperreports.engine.fill.JRFillSubreport.loadReport(JRFillSubreport.java:398)
at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateReport(JRFillSubreport.java:365)
at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateSubreport(JRFillSubreport.java:427)
at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluate(JRFillSubreport.java:341)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:381)
at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:500)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2022)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:748)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:255)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:115)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:580)
at net.sf.jasperreports.engine.fill.BaseReportFiller.fill(BaseReportFiller.java:414)
at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:121)
at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:667)
at net.sf.jasperreports.engine.JasperRunManager.runToPdf(JasperRunManager.java:493)
at net.sf.jasperreports.engine.JasperRunManager.runReportToPdf(JasperRunManager.java:896)
at br.com.lumera.caixa.ui.DashboardCaixaView$5.getStream(DashboardCaixaView.java:827)
at com.vaadin.server.StreamResource.getStream(StreamResource.java:143)
at com.vaadin.server.AbstractClientConnector.handleConnectorRequest(AbstractClientConnector.java:673)
at com.vaadin.server.ConnectorResourceHandler.handleRequest(ConnectorResourceHandler.java:90)
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1409)
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:364)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:261)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:115)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:120)
at org.springframework.boot.context.web.ErrorPageFilter.access$000(ErrorPageFilter.java:61)
at org.springframework.boot.context.web.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:95)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:44)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
2016-08-02 18:02:42.538 ERROR 8476 — [-8181-exec-1181]
com.vaadin.server.DefaultErrorHandler :
java.lang.NullPointerException: null
at java.io.ByteArrayInputStream.(ByteArrayInputStream.java:106) ~[na:1.8.0_101]
at br.com.lumera.caixa.ui.DashboardCaixaView$5.getStream(DashboardCaixaView.java:835) ~[DashboardCaixaView$5.class:na]
at com.vaadin.server.StreamResource.getStream(StreamResource.java:143) ~[vaadin-server-7.6.8.jar:7.6.8]
at com.vaadin.server.AbstractClientConnector.handleConnectorRequest(AbstractClientConnector.java:673) ~[vaadin-server-7.6.8.jar:7.6.8]
at com.vaadin.server.ConnectorResourceHandler.handleRequest(ConnectorResourceHandler.java:90) ~[vaadin-server-7.6.8.jar:7.6.8]
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1409) [vaadin-server-7.6.8.jar:7.6.8]
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:364) [vaadin-server-7.6.8.jar:7.6.8]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) [servlet-api-3.0.jar:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:261) [spring-boot-actuator-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:115) [spring-boot-actuator-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103) [spring-boot-actuator-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:120) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.context.web.ErrorPageFilter.access$000(ErrorPageFilter.java:61) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.boot.context.web.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:95) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.6.RELEASE.jar:4.2.6.RELEASE]
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) [tomcat-catalina-7.0.52.jar:7.0.52]
at com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:44) [tomcat70adaptor-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) [tomcat-catalina-7.0.52.jar:7.0.52]
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) [tomcat-coyote-7.0.52.jar:7.0.52]
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) [tomcat-coyote-7.0.52.jar:7.0.52]
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315) [tomcat-coyote-7.0.52.jar:7.0.52]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_101]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_101]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
So I think the reporter are not found the .jasper file.
Hi Marco, thanks so much for posting this idea. I just implemented it in my project, and it does exactly what it was meant to do; however note that there is no default constructor in BrowserWindowOpener, so in order for the above example to work, my class has to invoke a constrcotr such as super(“”). This in turn invokes setResource, which causes opening of a window right after constructor invocation. I’ll appreciate any ideas how to work around it.