 | | | Cannot find the declaration... | Cannot find the declaration... 2007-05-10 - By gilesP
Hi Brian
I have created a little class as attached below and run it.
At first run it produces the below output. 3 things:
1) It uses com.sun.org.apache.xalan*
2) It keeps the xmlns declaration!
3) It doesn't indent.
OUTPUT:
trans class: com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl
docuemnt class: com.sun.org.apache.xerces.internal.dom.DocumentImpl
<?xml version="1.0" encoding="UTF-8"?>
<checkout-shopping-cart xmlns="{http://checkout.google.com/schema/2}">
<shopping-cart>
<items>
<item>
<name>MyProduct</name>
</item>
</items>
</shopping-cart>
<checkout-flow-support/>
</checkout-shopping-cart>
However if I add in a WebObjects framework that our application makes use of
things change. We get the below. 3 things:
1) It now uses org.apache.xalan.*
2) It removes the xmlns declaration!
3) It does indent.
OUTPUT:
trans class: org.apache.xalan.transformer.TransformerIdentityImpl
docuemnt class: org.apache.xerces.dom.DocumentImpl
<?xml version="1.0" encoding="UTF-8"?>
<checkout-shopping-cart>
<shopping-cart>
<items>
<item>
<name>MyProduct</name>
</item>
</items>
</shopping-cart>
<checkout-flow-support/>
</checkout-shopping-cart>
My questions now...
Is my code wrong for org.apache.xalan.*, hence it wont keep the xmlns
declaration?
Is my WebObjects framework version of org.apache.xalan. outdated?
Should I infact be using com.sun.org.apache.xalan.*?
If so how do I force its use rather than org.apache.xalan* without affecting
otyher parts of the app?
Many thanks for your help, much appreciated.
Giles
Test app............................
import java.io.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class Main {
public static void main(String[] args) {
DocumentBuilderFactory factory = null;
DocumentBuilder builder = null;
Document document;
Element root;
Element shoppingCart;
Element checkoutFlowSupport;
Element items;
Element item;
Element name;
try {
factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
builder = factory.newDocumentBuilder();
} catch (ParserConfigurationException e) {
e.printStackTrace();
}
document=builder.newDocument();
root = (Element)
document.createElementNS("{http://checkout.google.com/schema/2}","checkout
-shopping-cart");
document.appendChild(root);
shoppingCart = (Element) document.createElement("shopping-cart");
checkoutFlowSupport = (Element)
document.createElement("checkout-flow-support");
root.appendChild(shoppingCart);
root.appendChild(checkoutFlowSupport);
shoppingCart.appendChild(items=document.createElement("items"));
item = (Element) document.createElement("item");
items.appendChild(item);
name =(Element) document.createElement("name");
name.setNodeValue("MyProduct");
name.appendChild(document.createTextNode("MyProduct"));
item.appendChild(name);
try {
TransformerFactory tf = TransformerFactory.newInstance();
Transformer trans = tf.newTransformer();
trans.setOutputProperty(OutputKeys.INDENT, "yes");
trans.setOutputProperty("{http://xml.apache.org/xslt}indent-amount",
"2");
System.out.println("trans class: " + trans.getClass().getName());
System.out.println("docuemnt class: " +
document.getClass().getName()+"\n");
StringWriter sw = new StringWriter();
trans.transform(new DOMSource(document), new StreamResult(sw));
System.out.print(sw.toString());
} catch (TransformerException tEx) {
tEx.printStackTrace();
}
}
}
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