Hi there!

I'm facing a problem working with the JDiagram component, using a JSP, an Applet and some Java code in the backend.

First, I draw something in the applet, then when I click on the "Render as image map", the Diagram data is sent to the server, and then 2 things can happen.

In case 1:
------------
If in my JSP I use applet.saveToString(true); (this is javascript, like the example that comes with de zip) then the diagram data reaches the Java code in the backend in a compressed way (I think) and, when I try to do "diagram.loadFromString(diagramData)" the console shows this:

[code]
com.mindfusion.diagramming.XmlException: com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceException: Invalid byte 1 of 1-byte UTF-8 sequence.

at com.mindfusion.diagramming.Diagram.a(Unknown Source)

at com.mindfusion.diagramming.Diagram.a(Unknown Source)

at com.mindfusion.diagramming.Diagram.loadFromString(Unknown Source)

at com.mindfusion.diagramming.Diagram$loadFromString.call(Unknown Source)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
....
[/code]

Case 2
---------

If in my JSP I use applet.saveToString(false); then the diagram data reaches the Java code in the backend in XML format. Then when I try to do "diagram.loadFromXml(diagramData)" the console shows this:

[code]

[Fatal Error] :1:56: Content is not allowed in prolog.

DiagramData: <?xml version="1.0" encoding="UTF-16" standalone="no"?>
<Diagram Version="14">
<Nodes>
<Node Class="std:ShapeNode" Id="0" Version="1">
<ZIndex>0</ZIndex>
<HyperLink>http://mindfusion.org</HyperLink>
<Brush Id="0"/>
.......
......
.
...
....
</InplaceEditFont>
<ModificationStart>0</ModificationStart>
<ShowToolTips>true</ShowToolTips>
</View>
</Diagram>

imageMapMode: Render as image map
Stacktrace follows:
org.xml.sax.SAXParseException: Content is not allowed in prolog.

at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264)

at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292)

at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:98)

at com.mindfusion.diagramming.Diagram.b(Unknown Source)

at com.mindfusion.diagramming.Diagram.loadFromXml(Unknown Source)

at com.mindfusion.diagramming.Diagram$loadFromXml.call(Unknown Source)

at proyectobase.DesignerController$_closure1.doCall(DesignerController.groovy:57)

at proyectobase.DesignerController$_closure1.doCall(DesignerController.groovy)

at java.lang.Thread.run(Thread.java:595)
[/code]
==========

I'm sorry for the HUGE post... hope somebody can help me.

Best regards.

Cristian.

Hi!

Thanks for your response. My answer is no.

The loadFromString or loadFromXml are receiving just a well formed XML or the compressed diagram.

I just sent an email with a txt file with the content of some diagram in the compressed form to support@mindfusion.eu

Maybe you can check it to see whats wrong with that.

Tell me if I can do any else to help you to solve this problem.

Cristian.

We use the applet methods to exchange data with our ASP.NET control (it shows the applet as a front-end), and it seems that's done in UTF-8. I can see the loadFromString code has cases for both UTF-8 and UTF-16, but for some reason both throw exceptions with your string. Our developer will debug this tomorrow. On what OS and JRE version have you saved it?

The latest version here should let you use the applet methods:
https://www.mindfusion.eu/JDiagramTrial.zip

I hope that helps,
Stoyan