Re: [castor-user] Castor - CDATA tags in Mapping XML

Keith Visco Fri, 07 Jan 2005 11:21:59 -0800

Castor 0.9.5.3 and below used the SAX ParserAdapter to wrap a ContentHandler.

If you use 0.9.5.4 or above it uses the ContentHandler directly.

--Keith

Chandrasekharan, Sarita wrote:

Hi,

For the code below has anyone tried to replace the DocumentHandler
(which has been deprecated) with ContentHandler? I get a SAX.Parser
Error as mentioned below.

            DocumentBuilderFactory mDocFact =
DocumentBuilderFactory.newInstance();

            DocumentBuilder mDocBuilder = mDocFact.newDocumentBuilder();

            Document mDocument = mDocBuilder.newDocument();

            // Load the Mapping XML

            Mapping mMap = new Mapping();

            mMap.loadMapping("ChartDataMapping.xml");

            // Create output format

            OutputFormat format = new OutputFormat(mDocument,"UTF-8",
true);

// Define the names of the XML elements to put

            String[] mCData = {"data"};

            format.setCDataElements(mCData);

format.setNonEscapingElements(mCData);

         // Create the serializer

            Writer mWriter = new StringWriter();

            XMLSerializer serializer = new XMLSerializer(mWriter,
format);

ContentHandler handler = serializer.asContentHandler();

         // Create the marshaller

            Marshaller mMarshaller = new Marshaller(handler);

            mMarshaller.setMapping(mMap);

            mMarshaller.setSuppressXSIType(true);

            mMarshaller.marshal(mChartDataInfo);

When I use ContentHandler, I get the following error:

#endElement: class

#endElement: mapping

org.xml.sax.SAXException: System property org.xml.sax.parser not
specified

        at org.xml.sax.helpers.ParserAdapter.<init>(Unknown Source)

        at org.exolab.castor.xml.Marshaller.<init>(Marshaller.java:334)

        at ChartDataXML.main(ChartDataXML.java:92)

I have read that it can be done by setting JAVA_OPTS in the system
properties. But, is there a way to fix it through code?

Thanks,

Sarita

-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 04, 2005 10:43 AM To: Chandrasekharan, Sarita Cc: [email protected] Subject: RE: [castor-user] Castor - CDATA tags in Mapping XML

Hi Sarita,

You can try this out....

// Get mapping Mapping mapping = new Mapping(); // The file containing the mapping here ex. test mapping.loadMapping(test); // Create output format OutputFormat format = new OutputFormat(Method.XML, "UTF-8", true); // Define the names of the XML elements to put

String[] cdata = {"fragment"}; format.setCDataElements(cdata); format.setNonEscapingElements(cdata);

// Create the serializer XMLSerializer serializer = new XMLSerializer(writer, format); // Create the document handler DocumentHandler handler = serializer.asDocumentHandler(); // Create the marshaller Marshaller marshaller = new Marshaller(handler); marshaller.setMapping(mapping); // Do it! marshaller.marshal(object); // The object you wanna marshal

Here you need to modify the mapping file also it would be like...

<field name="cData">

      <bind-xml name="fragment" node="element"
location="chart/chart_html_fragments"/>

    </field>

<field name="appearanceName" >

      <bind-xml name="appearance_name" node="attribute"
location="chart/chart_html_fragments/fragment"/>

    </field>

    <field name="isCurrentlySelected">

      <bind-xml name="is_currently_selected" node="attribute"
location="chart/chart_html_fragments/fragment"/>

    </field>

    <field name="linkName">

      <bind-xml name="link_name" node="attribute"
location="chart/chart_html_fragments/fragment"/>

    </field>

Thanks,

Snehal

-----Original Message----- From: Chandrasekharan, Sarita [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 04, 2005 8:13 PM To: [email protected] Subject: [castor-user] Castor - CDATA tags in Mapping XML

Hi,

        I have a class which has four attributes in it as follows.  I
want the last attribute cData which is a string to be embedded within
CDATA tags . How do I do this in the Mapping XML which the Marshall
process uses? I have sent the java class which is the object, the class
which sets the value for the object, the mapping XML and the output
expected. In my example I get the cData attribute wrapped around element
CDATA, but I want it the actual CDATA tags around the string . Any help
is appreciated.

        public class ChartDataInfo

            //attributes

            protected String appearanceName;

            protected String linkName;

            protected boolean isCurrentlySelected;

            protected String cData;

             /** Creates a new instance of ChartDataInfo */

            public ChartDataInfo() {

            public String getAppearanceName() { return appearanceName; }

            public String getLinkName() { return linkName; }

            public boolean getIsCurrentlySelected() { return
isCurrentlySelected; }

            public String getCData() { return cData; }

            public void setAppearanceName(String pValue) {
appearanceName = pValue; }

            public void setLinkName(String pValue) { linkName = pValue;
}

            public void setIsCurrentlySelected(boolean pValue) {
isCurrentlySelected = pValue; }

            public void setCData(String pValue) { cData = pValue; }

                CLASS which sets the value for ChartDataInfo class

        public class ChartDataXML

            public static void main(String[] argv) {

                // Create a new MetaDataInfo

                ChartDataInfo mChartDataInfo = new ChartDataInfo();

                mChartDataInfo.setAppearanceName("TFLINBAR");

                mChartDataInfo.setLinkName("Line-BAR");

                mChartDataInfo.setIsCurrentlySelected(true);

                mChartDataInfo.setCData("charthtml");

                             // write it out as XML

                        String encoding = "ISO-8859-1";

                    String mMapping = "ChartDataMapping.xml";

                        StringBuffer mStrBuf =
MarshalBean.generateBOXML(mMapping, mChartDataInfo);

System.out.println(mStrBuf);

        Mapping FILE

<!DOCTYPE databases PUBLIC

          "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"

          "http://castor.exolab.org/mapping.dtd";>

        <mapping>

          <description>ChartData Mapping</description>

          <class name="ChartDataInfo">

            <map-to xml="charts"/>

            <field name="appearanceName" >

              <bind-xml name="appearance_name" node="attribute"
location="chart/chart_html_fragments/fragment"/>

            </field>

            <field name="isCurrentlySelected">

              <bind-xml name="is_currently_selected" node="attribute"
location="chart/chart_html_fragments/fragment"/>

            </field>

            <field name="linkName">

              <bind-xml name="link_name" node="attribute"
location="chart/chart_html_fragments/fragment"/>

            </field>

            <field name="cData">

              <bind-xml name="CData" node="element"
location="chart/chart_html_fragments/fragment"/>

            </field>

          </class>

        </mapping>

                Expected output

<?xml version="1.0" encoding="UTF-8" ?>

        -
<file:///C:\Documents%20and%20Settings\a266557\Desktop\abc.xml>
<charts>

        -
<file:///C:\Documents%20and%20Settings\a266557\Desktop\abc.xml>  <chart>

        -
<file:///C:\Documents%20and%20Settings\a266557\Desktop\abc.xml>
<chart_html_fragments>

        -
<file:///C:\Documents%20and%20Settings\a266557\Desktop\abc.xml>
<fragment appearance_name="TFLINBAR" is_currently_selected="true"
link_name="Line-BAR">

         <![CDATA[charthtml]]>

          </fragment>

         </chart_html_fragments>

          </chart>

         </charts>

        Thanks,

        Sarita

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