Problem pushing XML as DataSource to report

Question

Post Author: biiz
CA Forum: JAVA
Hello!
I have a report which uses xml and xsd as datasource. I have now the requirement to dynamically set the xml-data into the report.
I do this via reportClientDocument.getDatabaseController().setDataSource(xml_ds, "ObjectSpace", "") but I receive following exception although data in xml_ds is not null:
Error occured: com.crystaldecisions.sdk.occa.report.lib.ReportSDKServerException: The data source object cannot be null.---- Error code:-2147024809 Error code name:failed
The ReportClientDocument is retrieved from Crystal Report Server XI R2 .
In crystalras log I have found following error-msg: ErrorLog 2008  5 29 10:56:40.784 1992 828 (\servers\ras\dtsagent\cdtsagent.cpp:3177): CDTSagent::doOneRequest reqId=272: CSResultException thrown.   ErrorSrc:"Analysis Server" FileName:"\servers\ras\dtsagent\reporthandler.cpp" LineNum:16948 ErrorCode:-2147024809 ErrorMsg:"The data source object cannot be null." DetailedErrorMsg:""
Can you please help me?
Regards,
Gerald Spitzer
Here is my code:
  CrystalEnterprise objCE = new CrystalEnterprise();  ISessionMgr objCESessionMgr = objCE.getSessionMgr();  objCESession = objCESessionMgr.logon("Administrator", "", this.getServletContext().getInitParameter("RAS"), "secEnterprise");  objTokenMgr = objCESession.getLogonTokenMgr();    cstrLogonToken = objTokenMgr.createLogonToken("", 60, 500);
   IInfoStore objInfoStore = (IInfoStore) objCESession.getService("InfoStore");
  java.lang.String cstrStatement;
  cstrStatement = "";  cstrStatement = cstrStatement + "SELECT SI_ID, SI_NAME";  cstrStatement = cstrStatement + "  FROM CI_INFOOBJECTS";  cstrStatement = cstrStatement + " WHERE SI_NAME = '" + reportName + "'";  cstrStatement = cstrStatement + "   AND SI_INSTANCE = 0";
  IInfoObjects objInfoObjects = objInfoStore.query(cstrStatement);
  if (objInfoObjects.getResultSize() > 0) {
   IInfoObject objInfoObject = (IInfoObject) objInfoObjects.get(0);
   IReportAppFactory objRASFactory = (IReportAppFactory) objCESession.getService("", "RASReportFactory");   ReportClientDocument objReport = (ReportClientDocument) objRASFactory.openDocument(objInfoObject,0,java.util.Locale.ENGLISH);
   FileInputStream fin = new FileInputStream("C:
fragebogen_dokument_ohneADesc.xsd");   ByteArrayOutputStream baos = new ByteArrayOutputStream();   byte&#91;&#93; bytes = new byte&#91;1024&#93;;   for(;;) {    int count = fin.read(bytes);    if(count < 0)     break;    baos.write(bytes, 0, count);   }   final byte&#91;&#93; xsdBytes = baos.toByteArray();   fin.close();    fin = new FileInputStream("C:
fragebogen_dokument_ohneADesc.xml");   baos = new ByteArrayOutputStream();   bytes = new byte&#91;1024&#93;;   for(;;) {    int count = fin.read(bytes);    if(count < 0)     break;    baos.write(bytes, 0, count);   }   final byte&#91;&#93; xmlBytes = baos.toByteArray();   fin.close();
   IXMLDataSet xml_ds = new IXMLDataSet() {    private IByteArray xmlData = null;    public void setXMLData(IByteArray xmlData) {     this.xmlData = xmlData;    }    public IByteArray getXMLData() {     return this.xmlData;    }    private IByteArray xmlSchema = null;    public void setXMLSchema(IByteArray xmlSchema){     this.xmlSchema = xmlSchema;    }    public IByteArray getXMLSchema() {     return this.xmlSchema;    }    };
   xml_ds.setXMLData(new IByteArray() {    public void fromString(String arrayValue){}    public String toString() { return ""; }    public byte&#91;&#93; getBytes() { return xmlBytes; }   });
   xml_ds.setXMLSchema(new IByteArray() {    public void fromString(String arrayValue){}    public String toString() { return ""; }    public byte&#91;&#93; getBytes() { return xsdBytes; }   });
   System.out.println("####bytes.length" + xml_ds.getXMLData().getBytes().length);
   objReport.getDatabaseController().setDataSource(xml_ds, "ObjectSpace", "");

Answer 1

Post Author: Ted Ueda
CA Forum: JAVA
Below is sample RAS SDK XML datasource injection code.Sincerely,Ted Ueda<%@ page import = "com.crystaldecisions.sdk.exception.SDKException,                   com.crystaldecisions.sdk.framework.,                   com.crystaldecisions.sdk.occa.infostore.,                   com.crystaldecisions.sdk.occa.managedreports.,                   com.crystaldecisions.sdk.occa.report.application.,                   com.crystaldecisions.sdk.occa.report.data.,                   com.crystaldecisions.sdk.occa.report.definition.,                   com.crystaldecisions.sdk.occa.report.document.,                   com.crystaldecisions.sdk.occa.report.lib.,                   com.crystaldecisions.sdk.occa.report.exportoptions.,                   com.crystaldecisions.sdk.occa.report.reportsource.IReportSource,                   com.crystaldecisions.sdk.plugin.desktop.common.,                   java.io.,                   java.util."%><%/* * Environment variables - modify to suit your deployment  */String username = "";String password = "";String cmsname  = "<cms name here>";String authType = "secEnterprise";String reportName = "Test XML";   // Report name as published on EnterpriseString xmlFilePath = "C:
XMLData
new_test_data.xml";  // Path to XML datasource String xsdFilePath = "C:
XMLData
new_test_data.xsd";  // Path to XSD for XML datasource IEnterpriseSession boSession = null;try {    IInfoStore infoStore;    IInfoObjects infoObjs;    IInfoObject report;    IReportAppFactory raFactory;    ReportClientDocument doc;    byte&#91;&#93; xmlBytes;    byte&#91;&#93; xsdBytes;    IXMLDataSet xml_ds;    ByteArrayInputStream exportByteArrayStream;    byte&#91;&#93; exportByteArray;    boSession = CrystalEnterprise.getSessionMgr().logon(username, password, cmsname, authType);    infoStore = (IInfoStore)boSession.getService("", "InfoStore");    infoObjs = (IInfoObjects) infoStore.query("SELECT TOP 1 * FROM CI_INFOOBJECTS "                                               + "WHERE SI_KIND = 'CrystalReport' "                                              + " AND SI_INSTANCE=0 "                                              + " AND SI_NAME='" + reportName + "'" );    report = (IInfoObject) infoObjs.get(0);    raFactory  = (IReportAppFactory) boSession.getService("", "RASReportService");    doc = raFactory.openDocument(report, 0, Locale.ENGLISH);    xmlBytes = bytesFromFile(xmlFilePath);    xsdBytes = bytesFromFile(xsdFilePath);    xml_ds = new XMLDataSet(new ByteArray(xmlBytes), new ByteArray(xsdBytes));    doc.getDatabaseController().setDataSource(xml_ds, "schema1/People", "schema1/People");    exportByteArrayStream = (ByteArrayInputStream)doc.getPrintOutputController().export(ReportExportFormat.PDF);    exportByteArray = new byte&#91;exportByteArrayStream.available()&#93;;    response.reset();    response.setHeader("Content-disposition", "inline;filename=crreport.pdf");    response.setContentType("application/pdf");    int bytesRead = 0;    while((bytesRead = exportByteArrayStream.read(exportByteArray)) != -1) {        response.getOutputStream().write(exportByteArray, 0, bytesRead);        }            response.getOutputStream().flush();    response.getOutputStream().close();} finally {  if(boSession != null)       boSession.logoff();}%><%!byte&#91;&#93; bytesFromFile(String path) throws IOException {    FileInputStream fin;    ByteArrayOutputStream byteOStream = new ByteArrayOutputStream();    byte&#91;&#93; bytes;    fin = new FileInputStream(path);    bytes = new byte&#91;1024&#93;;    for(;;) {        int count = fin.read(bytes);        if(count < 0)            break;        byteOStream.write(bytes, 0, count);    }    bytes = byteOStream.toByteArray();    fin.close();    return bytes;}%>