Depolying and building the WebVierwerExample

Hello, 
 
I would like to use the WebViewerExample but I need to make some changes: 
 
1) I don't want to start the web-viewer out of the browser. I would like to use a java-program, which sends the needed details (as run/frameset, the reportname and parameters and the xml-data-source as a stream). Therefore, I am using a http-post-request with MultipartRequestEntity: 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>PostMethod post = new PostMethod(urlString);
File file = new File(dataSourceFile);

Part[] parts = { new StringPart("reportFile=", reportFile),
new StringPart("xmlFileSize=", file.length() + ""),
new FilePart(file.getName(), file) };
post.setParameter("reportFile=", reportFile);
post.setRequestEntity(new MultipartRequestEntity(parts, post.getParams()));</pre>
 
I tested this with a modified webReport.java example on <a class='bbc_url' href='http://wiki.eclipse.org/Servlet_Example_(BIRT)_2.1.'>http://wiki.eclipse.org/Servlet_Example_(BIRT)_2.1.</a> This all works fine. But now I would like to use the great advantages of the web viewer example (like TOC). But I don't know what I have to change to 
 
a. do an http-post-request as described above 
b. use an xml-file-stream as an input for the data source. 
 
 
 
2) Furthermore, I have got problems with building the web-viewer-example using ant. I followed the steps described on <a class='bbc_url' href='http://wiki.eclipse.org/BIRT/FAQ/Birt_Project#Q:_How_do_I_build_the_2.2.2F2.3.2F2.5_BIRT_Viewer.3F'>http://wiki.eclipse.org/BIRT/FAQ/Birt_Project#Q:_How_do_I_build_the_2.2.2F2.3.2F2.5_BIRT_Viewer.3F</a> 
but instead of a fully functional viewservlets.jar just a viewer.jar and an empty viewservlets.jar was created. I tried to make some changes on the build.properties file but then I got new errors while the building process. Here is the build.properties file which I used: 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>src.includes = about_files/,\
about.html,\
viewerservletssrc/
bin.includes = META-INF/,\
about.html,\
about_files/,\
plugin.xml,\
viewer.jar,\
birt/,\
schema/,\
plugin.properties
jars.compile.order = viewer.jar
source.viewer.jar = src/
output.viewer.jar = bin/
bin.excludes = birt/WEB-INF/classes/,\
birt/test1.rptdesign
customBuildCallbacks=customBuildCallbacks.xml
</pre>
 
I hope anyone can help me gain new ideas or has some code snipptes.

Regards 
 
Jana

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Comments

JasonW

Jana,

1 - If you use the engine api you will have to write all the toc and page navigation yourself. Why not open the url to a deployed viewer? Before you call it you can add your xml datasource to the app context of the viewer.

2 - What version of the source are you using? What tag?

Jason

jf1

Hallo Jason,

1 - I want to open the url to a deployed viewer, but I don't want to copy the data-source to the server. I'am using xml-data-sources, which I want to stream to the server and add to the app context. For that I was using the multiplie-file-upload, but maybe there is another possibility. I thought the way the the Web-Viewer is bulid now, there has to be a file on the server, or I am missleading there?

2- I am using the viewer source 2.5.1 Release 200909171447.

I hope that helps,

Jana

jf1

I have got another question relating to this topic:

Is it possible to debug my changes of the WebViewerExample in Eclipse?

Regards,

Jana

jf1

Hi,

Finally I got a viewerservlets.jar. It seems ok, but when I'm trying to open an report in the webviewer now: "http://localhost:8080/WebViewerExample/run?__report=loggipor-Bestellstatus.rptdesign&sample=my+parameter"

I get the following exception regardless using the run or frameset method. This happens also for the test.rptdesign reports. Can you tell me what the problem is here?

"org.xml.sax.SAXParseException: Premature end of file."

The stack trace is empty.

And I still not have a clue how to add the inputstream to the app-context and how to stream the xml-datasource to the server, without needing to copy it physically to the server.

Kind Regards,

Jana

JasonW

Jana,

As far as streaming the xml you could just put it all in memory. Take a look at the attached report, which uses a beforeOpen Script on the data source to to read a url and store the data. Then in the beforeOpen script of the datasets the stream is reset and added to the appcontext.

On the premature end of file issue, can you post an example of code that you are using that I can test?

Jason