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Home » Archived » BIRT » Create XML Data source using DE API
Create XML Data source using DE API [message #1021631] Wed, 20 March 2013 12:33 Go to next message
Vinoth Mahalakshmi is currently offline Vinoth MahalakshmiFriend
Messages: 7
Registered: December 2012
Junior Member
HI,

I have a requirement and I guess BIRT supports it. Explained the scenario briefly.

In ReportDesigner ( Eclipse Perspective )

1. Created a Report using ReportDesigner in Eclipse
2. Created a XML Datasource by giving XSD alone ( Not XML file )
3. Created a Data Set for the above data source
4. Dragged and dropped the Data Sets in layout.

Now i have to input a XML file to the data source which got created by giving XSD alone, through a java code.

So Is there a option to deal with DesignEngine API for this scenario???

Any help will be really appreciated..

Thanks in advance,
Vinoth



Re: Create XML Data source using DE API [message #1022388 is a reply to message #1021631] Thu, 21 March 2013 19:27 Go to previous messageGo to next message
Jason Weathersby is currently offline Jason WeathersbyFriend
Messages: 9167
Registered: July 2009
Senior Member

Vinoth

Have you tried setting the FILELIST property of your datasource using script?
If you were passing in a parameter with the xml file location you could do it like:

//Data source beforeOpen
this.setExtensionProperty("FILELIST", params["myxmllocation"].value);
Re: Create XML Data source using DE API [message #1022546 is a reply to message #1022388] Fri, 22 March 2013 05:05 Go to previous messageGo to next message
Vinoth Mahalakshmi is currently offline Vinoth MahalakshmiFriend
Messages: 7
Registered: December 2012
Junior Member
Thanks for the clue Jason. It will be helpful if you share a piece of code to set the parameter value dynamically via DE API
Re: Create XML Data source using DE API [message #1027057 is a reply to message #1022546] Tue, 26 March 2013 14:07 Go to previous messageGo to next message
Jason Weathersby is currently offline Jason WeathersbyFriend
Messages: 9167
Registered: July 2009
Senior Member

Generally you use the RE API to set a parameter value when you run the report. How are you running the report?

Re: Create XML Data source using DE API [message #1027606 is a reply to message #1027057] Wed, 27 March 2013 07:08 Go to previous messageGo to next message
Vinoth Mahalakshmi is currently offline Vinoth MahalakshmiFriend
Messages: 7
Registered: December 2012
Junior Member
I have done it through RE API itself Smile

Now if i have a XML file in DB as CLOB object.

How can i input the clob object to XML data source in Report.

I have done it by converting the CLOB to XML File through java and sent the XML file as input to report.

Main requirement is, while converting clob to XML file, i should not store the XML file in file system or anywhere.

So Is there a option to deal with this scenario inside the scripts of report?.
Re: Create XML Data source using DE API [message #1029786 is a reply to message #1027606] Sat, 30 March 2013 06:00 Go to previous message
Jason Weathersby is currently offline Jason WeathersbyFriend
Messages: 9167
Registered: July 2009
Senior Member

I do not have an example of this but if your xml data source is nested in a table that contains clob xml you may be able to set the xml stream in the oncreate of the data item. As a simple example in a beforeOpen script on an xml data source you can do something like:


importPackage( Packages.java.io );

var mystr = "<?xml version=\"1.0\"?>";
mystr = mystr + "<library>";
mystr = mystr + "<book category=\"COOKING\">";
mystr = mystr + "<title lang=\"en\">The test3 Cook Book</title>";
mystr = mystr + "<author name=\"Miguel Ortiz\" country=\"es\"/>";
mystr = mystr + "<sold>10,312</sold>";
mystr = mystr + "<year>2005</year>";
mystr = mystr + "</book>";
mystr = mystr + "<book category=\"CHILDREN\">";
mystr = mystr + "<title lang=\"en\">Everyone is Super Special</title>";
mystr = mystr + "<author name=\"Sally Bush\" country=\"uk\"/>";
mystr = mystr + "<sold>8,222</sold>";
mystr = mystr + "<year>2005</year>";
mystr = mystr + "</book>";
mystr = mystr + "<book category=\"AUTOBIOGRAPHY\">";
mystr = mystr + "<title lang=\"en\">Japanese Greetings</title>";
mystr = mystr + "<author name=\"Taro Yamada\" country=\"uk\"/>";
mystr = mystr + "<sold>7,852</sold>";
mystr = mystr + "<year>2005</year>";
mystr = mystr + "</book>";

mystr = mystr + "<book category=\"WEB\">";
mystr = mystr + "<title lang=\"en\">Query Kick End</title>";
mystr = mystr + "<author name=\"James McGovern\" country=\"us\"/>";
mystr = mystr + "<sold>15,111</sold>";
mystr = mystr + "<year>2006</year>";
mystr = mystr + "</book>";
mystr = mystr + "<audio format=\"CD\" category=\"MUSIC\">";
mystr = mystr + "<title lang=\"en\">Feels Like Home</title>";
mystr = mystr + "<artist name=\"Norah Jones\" country=\"us\"/>";
mystr = mystr + "<sold>9,675</sold>";
mystr = mystr + "<year>2005</year>";
mystr = mystr + "</audio>";
mystr = mystr +"</library>";

JavaStr = new java.lang.String( mystr );
bais = new ByteArrayInputStream( JavaStr.getBytes());
appcon = reportContext.getAppContext();
appcon.put("org.eclipse.datatools.enablement.oda.xml.inputStream", bais);

In your case you would read the value in the oncreate of the data item containing the clob and then then nested dataset should pickup the new inputStream for each row.
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