[Creating simple chart or time series chart using xml data source??]

I want to create time series chart usinf xml data source ...Following is the xml file

/measCollecFile/measData/measInfo -- main data source xpath

subDataSet :- /measInfo/measValue/r  takes parameter(p) as user input

Filter for subDataset:- value of p attribute in (<r p="">22</r> ) == user input

Currently i am using subDataset for the time series chart shown in detail band.

As aresult, i get 3 charts for each record. And if a put it in summary band i get only one chart with value plotted only for the last record....

How can i use this value of r element (22 in above example) in time series chart as value???

or Otherwise tell me the other way of creating the chart or time series chart with value of r element being plotted on the y-axis and endTime in (<granPeriod duration="PT5S" endTime="2013-06-14T02:15:04.160+05:30"/>) being plotted on x-axis..

<measCollecFile>
    <fileHeader fileFormatVersion="32">
        <measCollec beginTime="2013-06-14T02:15:00.000+05:30"/>
    </fileHeader>
    <measData>
        <managedElement/>
        <measInfo>
            <job jobId="Server1"/>
            <granPeriod duration="PT5S" endTime="2013-06-14T02:15:04.160+05:30"/>
            <repPeriod duration="PT5S"/>
            <measType p="1">CPU_UTIL_SYSTEM</measType>
            <measType p="2">CPU_UTIL_USER</measType>
            <measType p="3">IDLE_PROCESSOR_THREADS</measType>
            <measValue measObjLdn="">
                <r p="1">10.18</r>
                <r p="2">3.19</r>
                <r p="3">0.0</r>
            </measValue>
        </measInfo>
        <measInfo>
            <job jobId="Server1"/>
            <granPeriod duration="PT5S" endTime="2014-06-14T02:15:09.162+05:30"/>
            <repPeriod duration="PT5S"/>
            <measType p="1">CPU_UTIL_SYSTEM</measType>
            <measType p="2">CPU_UTIL_USER</measType>
            <measType p="3">IDLE_PROCESSOR_THREADS</measType>
            <measValue measObjLdn="">
                <r p="1">6.49</r>
                <r p="2">5.49</r>
                <r p="3">0.0</r>
            </measValue>
        </measInfo>
        <measInfo>
            <job jobId="Server1"/>
            <granPeriod duration="PT5S" endTime="2013-06-14T02:18:14.162+05:30"/>
            <repPeriod duration="PT5S"/>
            <measType p="1">CPU_UTIL_SYSTEM</measType>
            <measType p="2">CPU_UTIL_USER</measType>
            <measType p="3">IDLE_PROCESSOR_THREADS</measType>
            <measValue measObjLdn="">
                <r p="1">2.79</r>
                <r p="2">2.39</r>
                <r p="3">0.0</r>
            </measValue>
       </measInfo>

 </measData>
    <fileFooter>
        <measCollec endTime="2013-06-14T02:20:00.000+05:30"/>
    </fileFooter>
</measCollecFile>

[compiler error when language="java" and datasource is xmldatasource]

log4j:WARN No appenders could be found for logger (net.sf.jasperreports.engine.xml.JRXmlDigesterFactory).
log4j:WARN Please initialize the log4j system properly.
net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file:
1. The method subDataSource(String) is undefined for the type JRDataSource
                value = ((net.sf.jasperreports.engine.JRDataSource)parameter_REPORT_DATA_SOURCE.getValue()).subDataSource("/measInfo/measValue"); //$JR_EXPR_ID=9$
                                                                                                            <----------->
2. The method subDataSource(String) is undefined for the type JRDataSource
                value = ((net.sf.jasperreports.engine.JRDataSource)parameter_REPORT_DATA_SOURCE.getValue()).subDataSource("/measInfo/measValue"); //$JR_EXPR_ID=9$
                                                                                                            <----------->
3. The method subDataSource(String) is undefined for the type JRDataSource
                value = ((net.sf.jasperreports.engine.JRDataSource)parameter_REPORT_DATA_SOURCE.getValue()).subDataSource("/measInfo/measValue"); //$JR_EXPR_ID=9$
                                                                                                            <----------->
3 errors

    at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:204)
    at net.sf.jasperreports.engine.JasperCompileManager.compile(JasperCompileManager.java:241)
    at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:501)
    at DummyReport.main(DummyReport.java:28)
 

 

PFA JRXML file