"FAILING TO LOAD EXCEL DATA"

amogha_ec

Hello Everyone,

                        I am trying to create ExampleSet from an Excel sheet and wants to iterate through each row..but getting an exception.Please help...
MY Java Code is:

                    RapidMiner.init();
                    String fileName="C:\\Excel\\excelexamplesource.xml";
    File file=new File(fileName);
    String xml = com.rapidminer.tools.Tools.readTextFile(file);
                    Process process = new Process(xml);
                    IOContainer ioResult = process.run();  // Getting Exception at this line
if (ioResult.getElementAt(0) instanceof ExampleSet)
                                {
ExampleSet resultSet = (ExampleSet)ioResult.getElementAt(0);

}

And My excelexamplesource.xml looks like:


<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.1.008">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.1.008" expanded="true" name="Process">
    <process expanded="true" height="100" width="212">
      <operator activated="true" class="read_excel" compatibility="5.1.008" expanded="true" height="60" name="Read Excel" width="90" x="45" y="30">
        <parameter key="excel_file" value="C:\Excel\Employee1.xls"/>
        <list key="annotations"/>
        <list key="data_set_meta_data_information"/>
      </operator>
      <connect from_op="Read Excel" from_port="output" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

And the Exception is:

2011-05-31 14:21:57 INFO: No filename given for result file, using stdout for logging results! (WrapperLoggingHandler.log())
2011-05-31 14:21:57 INFO: Process C:\Excel\pichart1.rmp starts (Process.run())
2011-05-31 14:21:58 SEVERE: Servlet.service() for servlet ExcelLoader threw exception (StandardWrapperValve.invoke())
  java.lang.ArrayIndexOutOfBoundsException: -1
      jxl.read.biff.SheetImpl.getCell(SheetImpl.java:325)
      com.rapidminer.operator.nio.model.ExcelResultSet.<init>(ExcelResultSet.java:120)
      com.rapidminer.operator.nio.model.ExcelResultSetConfiguration.makeDataResultSet(ExcelResultSetConfiguration.java:184)
      com.rapidminer.operator.nio.model.AbstractDataResultSetReader.createExampleSet(AbstractDataResultSetReader.java:103)
      com.rapidminer.operator.io.AbstractExampleSource.read(AbstractExampleSource.java:52)
      com.rapidminer.operator.io.AbstractExampleSource.read(AbstractExampleSource.java:36)
      com.rapidminer.operator.io.AbstractReader.doWork(AbstractReader.java:123)
      com.rapidminer.operator.Operator.execute(Operator.java:829)
      com.rapidminer.operator.execution.SimpleUnitExecutor.execute(SimpleUnitExecutor.java:51)
      com.rapidminer.operator.ExecutionUnit.execute(ExecutionUnit.java:709)
      com.rapidminer.operator.OperatorChain.doWork(OperatorChain.java:369)
      com.rapidminer.operator.Operator.execute(Operator.java:829)
      com.rapidminer.Process.run(Process.java:901)
      com.rapidminer.Process.run(Process.java:797)
      com.rapidminer.Process.run(Process.java:792)
      com.rapidminer.Process.run(Process.java:782)
      ExcelLoader.process(ExcelLoader.java:101)
      ExcelLoader.doGet(ExcelLoader.java:41)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
      org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
      org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
      org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
      org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
      org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
      org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
      org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
      org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
      org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:843)
      org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:679)
      org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1293)
      java.lang.Thread.run(Thread.java:619)
2011-05-31 14:37:33 INFO: Reloading this Context has started (StandardContext.reload())

Please help

Marco_Boeck

Hi,

please do not open multiple threads on the same topic on various forums, especially if your first thread already recieved attention. If anything, this behaviour will reduce responses.
Original thread is here:
http://rapid-i.com/rapidforum/index.php/topic,3752.0.html

Regards,
Marco