Generate SVG with java
Hi all!
I want to generate and manipulate a SVG-file with Java, accoding to analyzed data from another java program. Should i see a SVG-file as a normal xml-file und do the task with normal DOM, or with Batik Toolkit from Apache? I tried to use Batik, but his Java Doc ist to bad, there are no informations about the classes and his fields and methods, so that i can't understand them. For example, what does this class "SVGPathSegArcRel" mean and how can i use it?
So i think, it is probably to use the normal DOM-Schnittstelle to generate an d manipulate the SVG, as SVG is XML-file. Is that correct? Or could someone give me any tipps?
Thanks in advance!
Di
You can certainly use the generic XML software (DOM and so on) to generate and manipulate SVG, because as you say, it is XML. But the other part of the problem is the "semantics" -- what should you do when you manipulate SVG? That is similar to saying that you can use any text editor to generate and manipulate Java code -- you can, but to produce anything useful you have to understand Java.
Similarly, you have to understand SVG. Maybe the Batik toolkit is supposed to help with that; I don't know anything about it myself. Your alternative is to learn about the SVG elements and attributes, everything in the SVG namespace, and produce SVG from your own code.
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Generate ALG_AES_MAC_128_NOPAD with Java
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Hi,
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How to display dynamically generated SVG image
Hello, I need some help on this issue...
I need my page to display programmatically generated SVG image. but if i directly pass SVG string to the page like <h:outputText value="#{MyBean.SVGresult}"/> it will pop up a download dialog box. what should i do to properly include my svg into the page by using embed tag??The h:graphicImage does not appear to handle svg; maybe it should be extended. I'm still looking for the best way to do it. I don't know if I have the right solution but here is what I have done so far. This will throw up a x, y polyline graph.
Put a panelGrid as place holder in the jsp
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generateSVGGraph(twothetaArray, intensityArray);
UIColumn c=new UIColumn();
HtmlOutputText op=new HtmlOutputText();
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op.setTitle("header text");
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embedGraphic.getAttributes().put("align","left");
embedGraphic.getAttributes().put("width","600");
embedGraphic.getAttributes().put("height","500");
embedGraphic.getAttributes().put("type","image/svg+xml");
c.getChildren().add(embedGraphic);
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op=new HtmlOutputText();
op.getAttributes().put("style","color=black");
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c.setHeader(op);
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dataReport.getChildren().add(c);
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protected void generateSVGGraph(double[] x, double[] y)
//FacesContext context = FacesContext.getCurrentInstance();
//context.
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org.apache.batik.dom.svg.SAXSVGDocumentFactory svgFactory=new org.apache.batik.dom.svg.SAXSVGDocumentFactory("org.apache.xerces.parsers.SAXParser");
org.apache.batik.dom.svg.SVGDOMImplementation svgDOMImplementation=new org.apache.batik.dom.svg.SVGDOMImplementation();
org.w3c.dom.DocumentType dt=null;//svgDOMImplementation.createDocumentType("svg","-//W3C//DTD SVG 1.1//EN",f.toURI().toString());
//System.out.println(dt);
org.w3c.dom.svg.SVGDocument svgOMDocument=null;
try
System.out.println("dir "+(new java.io.File(".")).toURI().toString());
svgOMDocument=(org.w3c.dom.svg.SVGDocument)svgFactory.createDocument((new java.io.File("../webapps/jsf-wita/siteadmin/templates/graph-template.svg")).toURI().toString(), new java.io.FileInputStream(new java.io.File("../webapps/jsf-wita/siteadmin/templates/graph-template.svg")));//new org.apache.batik.dom.svg.SVGOMDocument(dt, (org.w3c.dom.DOMImplementation)svgDOMImplementation);
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primary_g.setAttribute("style","stroke:black; fill:none; stroke-width:1");
root.appendChild(primary_g);
//double[] x=new double[4*90];
//double[] y=new double[x.length];
//x[0]=(double)(1)/4.0;
//methodArgs[0]=new Double(Math.toRadians(x[0]));
//y[0]=((Double)method.invoke(mathmlObject, methodArgs)).doubleValue();
double xMin=x[0];
double yMin=y[0];
double xMax=x[x.length-1];
double yMax=xMax;
double xOfyMax=yMin;
StringBuffer points=new StringBuffer();
for(int index=0;index<x.length-1;index++)
//System.out.println(x[index]+" "+y[index]);
//x[index]=(double)(index+1)/4.0;
//methodArgs[0]=new Double(Math.toRadians(x[index]));
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double cx=x[index];
double cy=y[index];
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if(yMin>cy)yMin=cy;
//if(xMax<cx)xMax=cx;
if(yMax<cy)
xOfyMax=cx;
yMax=cy;
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xLabel.getFirstChild().setNodeValue("2?");//?");
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xMinimumLabel.getFirstChild().setNodeValue(ddf.format(xMin,4).toString());
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xMaximumLabel.getFirstChild().setNodeValue(ddf.format(xMax,4).toString());
org.w3c.dom.svg.SVGTextElement yMinimumLabel=(org.w3c.dom.svg.SVGTextElement)svgOMDocument.getElementById("yMinimumLabel");
yMinimumLabel.getFirstChild().setNodeValue(ddf.format(yMin,4).toString());
org.w3c.dom.svg.SVGTextElement yMaximumLabel=(org.w3c.dom.svg.SVGTextElement)svgOMDocument.getElementById("yMaximumLabel");
yMaximumLabel.getFirstChild().setNodeValue(ddf.format(yMax,4).toString());
for(int index=0;index<x.length-1;index++)
points.append((x[index]-xMin)*500/(xMax-xMin));
points.append(",");
points.append((y[index]-yMin)*500/(yMax-yMin));
points.append(" ");
//System.out.println(points);
org.apache.batik.dom.svg.SVGOMGElement g=new org.apache.batik.dom.svg.SVGOMGElement("", (org.apache.batik.dom.AbstractDocument)svgOMDocument);
g.setAttribute("id",(String)"data");
g.setAttribute("transform", "translate(100, 550)");
g.setAttribute("style","stroke:black; fill:none; stroke-width:1");
org.apache.batik.dom.svg.SVGOMPolylineElement polyLine=new org.apache.batik.dom.svg.SVGOMPolylineElement("", (org.apache.batik.dom.AbstractDocument)svgOMDocument);
polyLine.setAttribute("fill", "none");
polyLine.setAttribute("stroke", "blue");
polyLine.setAttribute("transform", "scale(1, -1)");
polyLine.setAttribute("stroke-width", "1");
polyLine.setAttribute("points", points.toString());
g.appendChild(polyLine);
primary_g.appendChild(g);
javax.xml.transform.TransformerFactory tFactory = javax.xml.transform.TransformerFactory.newInstance();
javax.xml.transform.Transformer intermediateTransformer=tFactory.newTransformer(new javax.xml.transform.stream.StreamSource("../webapps/jsf-wita/stylesheets/identity.xsl"));
intermediateTransformer.setOutputProperty(OutputKeys.ENCODING, "iso-8859-1");
intermediateTransformer.setOutputProperty(OutputKeys.INDENT, "yes");
intermediateTransformer.transform(new javax.xml.transform.dom.DOMSource(svgOMDocument), new javax.xml.transform.stream.StreamResult(new java.io.FileOutputStream("../webapps/jsf-wita/session/phase"+phaseGraphCount+".svg")));
catch(javax.xml.transform.TransformerConfigurationException tce)
System.out.println("tce err: "+tce.getMessage());
catch(javax.xml.transform.TransformerException te)
System.out.println("te err: "+te.getMessage());
catch(java.io.FileNotFoundException fnfe)
System.out.println("fnfe:"+fnfe.getMessage());
catch(java.io.IOException ioe)
System.out.println("io:"+ioe.getMessage());
HtmlEmbedGraphic.java
* HtmlEmbedGraphic.java
* Created on May 16, 2004, 8:12 AM
package com.hypernex.jsf.ext.html;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
* @author hyperdev
public class HtmlEmbedGraphic extends javax.faces.component.UIComponentBase
/** Creates a new instance of HtmlEmbedGraphic */
public HtmlEmbedGraphic()
super();
public String getFamily()
return "javax.faces.Data";
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return true;
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UIComponent component) throws java.io.IOException {
if ((context == null) || (component == null)){
System.out.println("encodeBegin NullPointerException "+context);
throw new NullPointerException();
System.out.println("encodeBegin "+context+" "+component);
//MapComponent map=(MapComponent) component;
ResponseWriter writer = context.getResponseWriter();
writer.startElement("embed", this);
writer.writeAttribute("src", getAttributes().get("src"),"id");
public void encodeEnd(FacesContext context) throws java.io.IOException {
if ((context == null)){
throw new NullPointerException();
//MapComponent map = (MapComponent) component;
ResponseWriter writer = context.getResponseWriter();
writer.startElement("embed", this);
writer.writeAttribute("src", getAttributes().get("src"),"id");
writer.writeAttribute("align", getAttributes().get("align"),"id");
writer.writeAttribute("width", getAttributes().get("width"),"id");
writer.writeAttribute("height", getAttributes().get("height"),"id");
writer.writeAttribute("type", getAttributes().get("type"),"id");
writer.endElement("embed");
}graph-template.svg - More static parts of the graphic can be put in here.
<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="text/ecmascript" width="100%" zoomAndPan="magnify" contentStyleType="text/css" viewBox="0 0 600% 600%" height="100%" preserveAspectRatio="xMidYMid meet" version="1.0">
<g style="stroke:black; fill:none; stroke-width:1">
<g id="visuals" style="stroke:black; fill:none; stroke-width:1" transform="translate(100, 550)">
<rect id="box" transform="scale(1, -1)" x="1" y="1" width="500" height="500" fill="none" stroke="black" stroke-width="1.5"/>
<g id="labels" transform="scale(1, 1)">
<text id="xLabel" x="250" y="50" text-anchor="middle"
font-family="Verdana" font-size="24" fill="blue" >x label</text>
<text id="xMinimumLabel" x="0" y="20" text-anchor="middle"
font-family="Verdana" font-size="18" fill="blue" >0.0</text>
<text id="xMaximumLabel" x="500" y="20" text-anchor="middle"
font-family="Verdana" font-size="18" fill="blue" >100.0</text>
<text id="yMinimumLabel" x="-3" y="-3" text-anchor="end"
font-family="Verdana" font-size="18" fill="blue" >0.0</text>
<text id="yMaximumLabel" x="-3" y="-500" text-anchor="end"
font-family="Verdana" font-size="18" fill="blue" >100.0</text>
</g>
</g>
<g id="data" style="stroke:black; fill:none; stroke-width:1" transform="translate(10, 550)">
</g>
</g>
</svg> -
Hi
I have a web application with java. I need to show all counties of the state as a map and the user can select a county to go on to next page. Where can I find interactive maps to use in this java application? Any help is appreciated.
SueTry looking into SVG:
http://www.adobe.com/svg/main.html
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Problem with java and flex web service
Hi,
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ri. I need to call it from Flex using the WebService class
Annotations for the java web method :
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Events problem with (Java and ActiveX)
Hi,
I use an ActiveX component with Java and i've got a problem with events.
Java classes were generated with Bridge2Java (IBM).
In order to manage events I added a listener in my application :
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javaMyActiveX.add_DMyActiveXEventsListener(new _DMyActiveXEventsAdapter());
I also added a constructor in the _DMyActiveXEventsAdapter class and I fill the body of methods.
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Dear Colleagues,
We're facing the issue with Java Script after upgrade of BW 3.5 to BI7.
Just after update we checked the basic functionality and it occured that some of web templates that use Java Script don't work. They generate seelction screen, but after selection the screen becomes blank without any error messages.
We're currently stucked since web templates weren't converted to BI7 version so they should work exactly as before the upgrade.
We compared the Java code with other environment that was not upgraded - it's perfectly the same.
The only explanation that comes to my mind is that some Java Script settings on the server level were changed during the upgrade but I have no idea where I can check that.
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Thanks, it was great to read your reply and then few minutes later talk to you live on SDN Day!
Unfortunately, http cache clean-up did not help. But there is another funny thing I found - for exactly the same 3.5 webtemplate html code returned from WebAS 3.5 was different then from 7.0.
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<b>3.5</b>
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and
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if (navigator.appName.indexOf("Microsoft Internet Explorer")!=-1)
<frame src="/sap/bw/BEx?SAP-LANGUAGE=E&PAGENO=8&REQUEST_NO=0&CMD=GET_TEMPLATE"
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How about SAP's claim that technical upgrade from 3.x to 7.0 changes nothing?
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Need special encoded characters in an Email subject with java 1.3.1_02
I need to find a way to construct an Email through java with Subject lines built using characters from various Asian encodings. Such as Shift-JIS, Chinese Big5, etc.
These encodings cannot be in UTF-8 format and must remain in the native character set.
For testing I have an HTML file constructed using a single line of text with Shift-JIS characters. This file shows properly in web browsers under the Shift-JIS encoding view, and when used to create the body of an email it works perfectly through the DataHandler. However, I cannot get any java Reader to pull the same stream of characters into the Subject of the email. The Subject is always garbage no matter what I do.
Here is a small code sample with the relevant lines:
Session session = Session.getDefaultInstance(System.getProperties(), null);
MimeMessage reSend = new MimeMessage(session);
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s.close();
reSend.setSubject(resub);
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reSend.setDataHandler(collect);
ship.send(reSend);If I use the "SJIS" encoding in the InputStreamReader above, all characters are shown as "?". If I delete it entirely and use the system default, I get half of the characters and the rest are garbage. I can generate either of those results using various other Japanese and Western encoding definitions.
I have tried using the above code, also DataHandlers for the Subject, FileReader directly to a String, ByteArrayInputStreams, and StringBuffers. So far everything I try ends up at the same result.
Can anyone help me out? I really need this to work. If I can get this one encoding to work, then I should be able to program case switches for the other encodings.
Thanks kindly!
Kurt JacksonFirst this is an issue with javamail and not with java.
What makes you think that the mime standard allows what you want to do?
Both of your 'tests' have been done using alternatives which do support alternative encodings.
These encodings cannot be in UTF-8 format and must remain in the native character set.That seems rather unlikely to me. Email is transported using one encoding. Certainly SMTP uses only ascii. So what ever you put in there is going to be ASCII no matter what you do to it. I suppose something at the end might try to read it using an alternative encoding but then what happens when someone really wants to send those ASCII characters?
Mime, I believe, is built on SMTP. And the subject line is still SMTP and thus ASCII.
Here is one link that covers mime (you might want to check the backing references though.)
http://www.mindspring.com/~mgrand/mime.html
I believe there is some sort of official or unofficial standard for doing what you want. I would suggest that you start by getting that first. I would suspect JavaMail doesn't support it.
Once you have a standard to follow you have the following choices..
- Modify JavaMail directly to support this (this then becomes a non-distributable solution.)
- Extend JavaMail do support this. This might or might not be possible.
- Write your own implementation (don't use JavaMail.)
- Find another solution from another source that already implements this. -
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SVGAnimator animator =
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I modify the requestResource a bit to get Image from root1.
public void requestResource(ScalableImage inImage, String inURI)
int pos = inURI.indexOf(":");
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<image x='90.0' y='69.46001' width='222.7' height='152.25' xlink:href='myImage.png'/>
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Using Pisces Renderer (native version)
loadStarting : true
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loadStarting : true
loadComplete : true
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at com.sun.perseus.model.ModelNode.paint(+9)
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RunnableQueue terminatingUncaught exception java/lang/ArrayIndexOutOfBoundsException.
Bascially all I need is a viewer to display SVG with xlink to PNG image without the use or tinyline. If I want to get the PNG image from http, what should I do?
Any response will be greatly appreciated.> This technique is really just using a BEE, there is
> documentation on the BEE concept in the online help
> and Brian McKellar has a weblog on the subject as
> well.
OK, I think I get the idea. Will check the stuff. Thanks.
> Notice the strange D at the end of the line. This
> isn't in the original posting. Perhaps this is just
> bad cut and paste.
Just bad copy paste. Yes.
> You say that this isn't working for you - but you
> don't describe the results. Is there an error? Does
> it render anything in the button at all? Does the
> raw HTML get rendered?
I just saw coding in the button.
> You want to make sure that the
> text doesn't get encoded - which would cause the HTML
> source to display instead. On the htmlb:button you
> will want to set the attribute encode = FALSE.
OK, that was right on spot. This shows me the Icon! Strike!
> Also I am not sure that you can also pass in text
> with the image like that. You might have to create a
> full BEE and add the image and a textView separately
> into the BEE. Then render the entire BEE to a string.
I'll check the documentation on BEE and give it a try.
Thanks for your answer.
Thats a starting point for me.
Alf -
Should we avoid Graphical mapping and stick with Java mapping?
After developing mappings in XI for a month, I just don't see any good reasons to use Graphical mappings over Java mappings. Maybe some experienced users here can give me some valid reasons why we should choose Graphical mappings. Here is what I think:
Disadvantages of Graphical mappings:
1. No way to perform automated unit testings. This is probably the biggest reason I hate it. You can do some tests manually when you work in Integration Builder. But there is no way you can write some unit testing utilities to automate the task.
2. Complexity. Even for some simple requirements, your Graphical mappings can become complicated and hard to understand. A lot of times, I find myself staring at several dozens of graphical nodes and try to understand what it does.
3. Impossible to reuse. This is totally against the DRY (Don't repeat yourself) principle. For example, to generate messages for JDBC adapter, it is common to have two identical fields for primary keys: one in the access node and another in the key node. If you change the mapping logic in one, you have to remember to change the other.
Advantage with Java mappings:
1. Fully automated unit testing. You can create JUnit tests along with your Java mapping classes and use Maven or other build tools to perform automated unit testing.
2. Your choice of XML parsing and binding. With Java mapping, you can choose any open source framework for XML parsing and binding. For example, with XMLBeans, I can convert XML input message to a Java object, transform to another Java object and write to output message. And each Java object is generated from its corresponding XML schema.
3. Highly reusable. We can use fundamental object-oriented designs to create highly reusable mapping components.
4. Better version control. Since the mappings are just Java classes, we can use CVS or SVN to track code changes.
5. Better build tools. We can fully utilize build tools like Ant and Maven to automate the build, unit tests, or even generate documents and mapping web sites.
So do you guys agree? Maybe I am still new to XI or I am missing some important things. But at this point, I just don't see why I should use Graphical mappings. Is there anyone developing XI interfaces completely with Java mappings?
Thanks in advance for any comments!
Kenny CheangHi Suraj,
> Since its graphical the blocks will take space, but
> there is always an adavntage of processing time.
> Ebven though it may appear bigger, it will take less
> time as compared with Java code (for the same
> mapping).
Could you explain more why the graphical mapping has better performance? I thought the graphical mapping is compiled into a Java class in the runtime anyway.
> Yes thats there, but same goes with Java mapping too
> right (if you haven't mentioned it as constants)
I mainly think about inheritance. If I have to build 10 interfaces and they all have some common behavior, I can create a base interface class to encapsulate the common logic. But with graphical mapping, you have to duplicate them in each interface.
> Disadvantages of Java mapping:
> 1. Performance
Same as above. I just don't see why Java has worse performance. I actually think Java should have better performance. You can optimize the code anyway you want. In some cases, you have to use queue functions in graphical mapping but it's not necessary in Java.
> 2. All might not be well versed with Java Code(though
> everyone may know basic java) .
I am not asking everyone to abandon graphical mapping. I am just wondering which one is better when you have skills for both.
> 3. Lot of standard functions are available in GM
> which you can choose, but you have to remember the
> exact code for those in Java mapping.
You can create functions in Java too. All you have to do is to remember the function name.
Kenny -
Hello experts,
I developed a Java Mapping Programm for reading filename of a pdf file and giving filename to a rfc structure for calling a rfc module. Thus, I test it via testing interface method and implementing a main method in my mapping class, which works, but if I run it in the integration server I get the following exception:
MP: Exception caused of com.sap.aii.af.ra.ms.api.RecoverableException: java.lang.StringIndexOutOfBoundsException: String index out of range: -7: com.sap.aii.af.rfc.afcommunication.RfcAFWException: java.lang.StringIndexOutOfBoundsException: String index out of range: -7
That is the execute method of my class:
public void execute(InputStream inputStream, OutputStream outputStream)
throws StreamTransformationException {
// TODO Auto-generated method stub
try { //The following is for the FileName in the File Adapter
DynamicConfiguration dynamicconfiguration =
(DynamicConfiguration) map.get("DynamicConfiguration");
DynamicConfigurationKey key =
DynamicConfigurationKey.create(
"http://sap.com/xi/XI/System/File",
"FileName");
String myFileName = dynamicconfiguration.get(key);
MappingTrace trace = null;
trace.addInfo(myFileName);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transform = tf.newTransformer();
Document docout = db.newDocument();
Element root = docout.createElement("Z_SD_WEB_HP_INVOICE_STATUS");
root.setAttribute(
"xmlns:ns1",
"urn:sap-com:document:sap:rfc:functions");
docout.appendChild(root);
Element docName = docout.createElement("IM_DOCNAME");
root.appendChild(docName);
Text srcxml = docout.createTextNode(myFileName);
docName.appendChild(srcxml);
DOMSource domS = new DOMSource(docout);
transform.transform((domS), new StreamResult(outputStream));
} catch (Throwable throwable) {
throwable.printStackTrace();
If I test via main method and testing interface mapping the generated xml is like:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><Z_SD_WEB_HP_INVOICE_STATUS xmlns:ns1="urn:sap-com:document:sap:rfc:functions"><IM_DOCNAME>232132.pdf</IM_DOCNAME></Z_SD_WEB_HP_INVOICE_STATUS>
I do not understand why I get this error in real environment.
Kind regards,
ErkanHello experts,
I found the solution. I will also publish this solution, this is also a point which I sometimes missing here in this forum:
In creating the rfc-xml with java mapping, so a prefix should be add to the name of the rfc-structure e.g.
ns1:Z_RFC_CALL. If this prefix is missing, then you get this error:
com.sap.aii.af.ra.ms.api.RecoverableException: java.lang.StringIndexOutOfBoundsException: String index out of range: -7: com.sap.aii.af.rfc.afcommunication.RfcAFWException: java.lang.StringIndexOutOfBoundsException: String index out of range: -7
To find this I create a grafical test mapping and I check the test rfc-xml with the java created xml.
Anyway thanks all for the published recommendations.
Kind regards,
Erkan
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