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package com.sun.xml.txw2;
import com.sun.xml.txw2.output.XmlSerializer;
import com.sun.xml.txw2.output.TXWSerializer;
import com.sun.xml.txw2.annotation.XmlElement;
import com.sun.xml.txw2.annotation.XmlNamespace;
import javax.xml.namespace.QName;
/**
* Entry point to TXW.
*
* @author Kohsuke Kawaguchi
*/
public abstract class TXW {
private TXW() {} // no instanciation please
/*package*/ static QName getTagName( Class<?> c ) {
String localName="";
String nsUri="##default";
XmlElement xe = c.getAnnotation(XmlElement.class);
if(xe!=null) {
localName = xe.value();
nsUri = xe.ns();
}
if(localName.length()==0) {
localName = c.getName();
int idx = localName.lastIndexOf('.');
if(idx>=0)
localName = localName.substring(idx+1);
localName = Character.toLowerCase(localName.charAt(0))+localName.substring(1);
}
if(nsUri.equals("##default")) {
Package pkg = c.getPackage();
if(pkg!=null) {
XmlNamespace xn = pkg.getAnnotation(XmlNamespace.class);
if(xn!=null)
nsUri = xn.value();
}
}
if(nsUri.equals("##default"))
nsUri = "";
return new QName(nsUri,localName);
}
/**
* Creates a new {@link TypedXmlWriter} to write a new instance of a document.
*
* @param rootElement
* The {@link TypedXmlWriter} interface that declares the content model of the root element.
* This interface must have {@link XmlElement} annotation on it to designate the tag name
* of the root element.
* @param out
* The target of the writing.
*/
public static <T extends TypedXmlWriter> T create( Class<T> rootElement, XmlSerializer out ) {
if (out instanceof TXWSerializer) {
TXWSerializer txws = (TXWSerializer) out;
return txws.txw._element(rootElement);
}
Document doc = new Document(out);
QName n = getTagName(rootElement);
return new ContainerElement(doc,null,n.getNamespaceURI(),n.getLocalPart())._cast(rootElement);
}
/**
* Creates a new {@link TypedXmlWriter} to write a new instance of a document.
*
* <p>
* Similar to the other method, but this version allows the caller to set the
* tag name at the run-time.
*
* @param tagName
* The tag name of the root document.
*
* @see #create(Class,XmlSerializer)
*/
public static <T extends TypedXmlWriter> T create( QName tagName, Class<T> rootElement, XmlSerializer out ) {
if (out instanceof TXWSerializer) {
TXWSerializer txws = (TXWSerializer) out;
return txws.txw._element(tagName,rootElement);
}
return new ContainerElement(new Document(out),null,tagName.getNamespaceURI(),tagName.getLocalPart())._cast(rootElement);
}
}