com.sun.msv.generator.ContextProviderImpl Maven / Gradle / Ivy
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package com.sun.msv.generator;
import org.relaxng.datatype.ValidationContext;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import com.sun.msv.datatype.SerializationContext;
/**
* dummy implementation of ValidationContextProvider.
*
* @author Kohsuke KAWAGUCHI
*/
final public class ContextProviderImpl
implements ValidationContext, SerializationContext {
public ContextProviderImpl( Element parent ) {
this.element = parent;
}
protected final Element element;
public String getNamespacePrefix( String uri ) {
// find the already declared prefix.
String prefix = findPredeclaredPrefix(element,uri);
if(prefix!=null) return prefix;
// make sure that this prefix is not in use.
int cnt=1;
while( resolvePrefix(element,"qns"+cnt)!=null ) cnt++;
// declare attribute
element.setAttributeNS( XMLNS_URI, "xmlns:qns"+cnt, uri );
return "qns"+cnt;
}
public String resolveNamespacePrefix( String prefix ) {
return resolvePrefix(element,prefix);
}
public boolean isUnparsedEntity( String name ) {
// accept anything.
// ENTITY is used with enumeration, so again
// this implementation is not a problem.
return true;
}
public boolean isNotation( String name ) {
// accept anything.
return true;
}
public String getBaseUri() { return null; }
public static final String XMLNS_URI = "http://www.w3.org/2000/xmlns/";
/**
* finds a prefix for this URI. If no prefix is declared for this URI,
* returns null.
*/
protected static String findPredeclaredPrefix( Element e, String uri ) {
NamedNodeMap m = e.getAttributes();
for( int i=0; i