ComponentNotFoundException when loading media in iframe

answered 2009-03-29 09:52:36 +0800

etamas
78 ● 2

updated 2009-03-29 09:53:46 +0800

Hi terrytornado!

Thanks for your fast answer.

I am using zk package 3.6.0.
My Window "showPDF" that includes the Iframe has the following code in the onCreate method:

Ressource ressource = Util.getRessource();
Iframe iframe = new Iframe();
byte[] data = ressource.getData();
InputStream dataStream = null;
if(data==null) {
dataStream = ressource.getDataSteam();
}
String name = ressource.getName();
String format = ressource.getFormat();
String ctype = ressource.getCtype();
Media media = null;
Media media = null;
if(data!=null) {
media = new AMedia(name, format, ctype, data);
} else {
media = new AMedia(name, format, ctype, dataStream);
}
iframe.setContent(media);
iframe.setHeight("100%");
iframe.setWidth("100%");
iframe.setParent(this);

The class Ressource has the following attributes:
private String name;
private byte[] data;
private String format;
private String ctype;
private InputStream dataSteam;

Like you can see I have Ressources that stores two different types of pdf-files. Some are given as byte[] and some as InputStream. When the window showPDF is created one iframe is included and one pdf-file loaded. The exception does not occur when I load pdf-files that are given as byte[]. When I load the first pdf-file that is given as InputStream no exception occurs. But when loading another pdf-file that is given as InputStream (right after the first one) the exception occurs.

answered 2009-03-30 00:16:09 +0800

etamas
78 ● 2

sure, although i don´t know if it would help anything.

here is the zul file:

+++++++++++++++++++++++++++++++
<?page id="page_wblist" title="Wissensbasislisten" contentType="text/html;charset=UTF-8"?>
<zk>

<window id="win_wblist" use="components.cWBList" sclass="wblistwin_overlapped" title="Liste der verwendeten SOPs" border="normal" height="634px" width="560px" mode="overlapped" closable="true" onClose="self.closeWindow()" left="5px" top="58px" >

<listbox id="lb_wbliste" sclass="wblistbox" use="components.cList_WBList" fixedLayout="false" height="99%" width="100%" rows="36" onSelect="win_wblist.setSelectedListItem(self)">
<listhead>
<listheader label="SOP Kurzname" width="110px" />
<listheader label="SOP Bezeichnung" width="450px" />
</listhead>
</listbox>

</window>
</zk>
*********************************

+++++++++++++++++++++++++++++++++
the class cList_WBList extends Listbox and implements AfterCompose:
public void afterCompose() {
List<Knowledgebase> wissensbasen = Util.getWissensbasen();
if (wissensbasen != null){
ListModel strset = new SimpleListModel(wissensbasen);
super.setModel(strset);
super.setItemRenderer(new ItemRendererWBList());
}
*********************************

+++++++++++++++++++++++++++++++
ItemRendererWBList has the render method:
public void render(final Listitem li, final Object data) {
new Listcell(((Knowledgebase) data).getName()).setParent(li);
new Listcell(((Knowledgebase) data).getLangname()).setParent(li);

li.addEventListener("onDoubleClick", new EventListener() {
@Override
public void onEvent(Event event) throws Exception {
Knowledgebase sop = (Knowledgebase) data;

InputStream inputStream = HlpStream.classloader_getInputStreamFromResource("/ressources/" + name);
cWBList win_wblist= (cWBList) Path.getComponent("//page_wblist/win_wblist");
Ressource res = new Ressource(name, format, ctype, inputStream, win_wblist);
Util.setRessource(res);

Include inc = new Include();
inc.setSrc("w_ressourceanzeige.zul");
cWissensbasis win_wb = (cWissensbasis) Path.getComponent("//page_wissensbasis/win_wb");
inc.setParent(win_wb);
}

});
}
*********************************

+++++++++++++++++++++++++++++++
w_ressourceanzeige.zul:
<zk>

<window id="win_ressourceanzeige" use="components.cRessourceAnzeige" sclass="overlappedwindow_pat" title="PDF Anzeige" mode="overlapped" width="50%" border="normal" closable="true" >

<!--
<iframe id="pdfframe" src="berichtAktuell.pdf" height="100%" width="100%" ></iframe>
-->

</window>

</zk>
*********************************

+++++++++++++++++++++++++++++++
public class cRessourceAnzeige extends Window {

public void onCreate() {
this.setShadow(false);

if(Util.isPatientenAnsicht()) {
this.setTop("94px");
this.setHeight("85.5%");
} else if(Util.isWissensbasisAnsicht()) {
this.setTop("58px");
this.setHeight("90%");
}
this.setLeft(ressource.getPosition());

Iframe iframe = new Iframe();
byte[] data = ressource.getData();
InputStream dataStream = null;
if(data==null) {
dataStream = ressource.getDataSteam();
}
String name = ressource.getName();
String format = ressource.getFormat();
String ctype = ressource.getCtype();
Media media = null;
if(data!=null) {
media = new AMedia(name, format, ctype, data);
} else {
media = new AMedia(name, format, ctype, dataStream);
}

iframe.setContent(media);
iframe.setContent(media);
iframe.setHeight("100%");
iframe.setWidth("100%");
iframe.setParent(this);
}

}
*********************************

answered 2009-03-30 00:20:50 +0800

etamas
78 ● 2

updated 2009-03-30 00:49:18 +0800

I don´t see why the Exception occurs. Thanks again for your help.

answered 2009-03-30 01:49:56 +0800

etamas
78 ● 2

i use zk package 3.6.0 and the exception occurs with firefox and ie.

one time it is the exception mentioned above and the other time:

30.03.2009 03:45:38 org.zkoss.zk.au.http.AuDynaMediar process:130
SCHWERWIEGEND: Failed to load media, /view/gpf31/z_pf_v1/2/RE_Rhesus_Reminderfrage.pdf
>>org.zkoss.zk.ui.ComponentNotFoundException: Component not found: z_pf_v1
>> at org.zkoss.zk.ui.impl.DesktopImpl.getComponentByUuid(DesktopImpl.java:380)
>> at org.zkoss.zk.au.http.AuDynaMediar.process(AuDynaMediar.java:108)
>> at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:362)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
>> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>>...

i didn´t figure out why the exceptions happen or why they alternate.