/**
* Before this call m_elementContext.m_elementURI is null, which means it is not yet known. After
* this call it is non-null, but possibly "" meaning that it is in the default namespace.
*
* @return The URI of the element, never null, but possibly "".
*/
private String getElementURI() {
String uri = null;
// At this point in processing we have received all the
// namespace mappings
// As we still don't know the elements namespace,
// we now figure it out.
String prefix = getPrefixPart(m_elemContext.m_elementName);
if (prefix == null) {
// no prefix so lookup the URI of the default namespace
uri = m_prefixMap.lookupNamespace("");
} else {
uri = m_prefixMap.lookupNamespace(prefix);
}
if (uri == null) {
// We didn't find the namespace for the
// prefix ... ouch, that shouldn't happen.
// This is a hack, we really don't know
// the namespace
uri = EMPTYSTRING;
}
return uri;
}
/**
* Push a boolean state based on if the name of the current element is found in the list of
* qnames. A state is only pushed if there were some cdata-section-names were specified.
*
* <p>Hidden parameters are the vector of qualified elements specified in cdata-section-names
* attribute, and the m_cdataSectionStates stack onto which whether the current element is in the
* list is pushed (true or false). Other hidden parameters are the current elements namespaceURI,
* localName and qName
*/
protected boolean isCdataSection() {
boolean b = false;
if (null != m_cdataSectionElements) {
if (m_elemContext.m_elementLocalName == null)
m_elemContext.m_elementLocalName = getLocalName(m_elemContext.m_elementName);
if (m_elemContext.m_elementURI == null) {
String prefix = getPrefixPart(m_elemContext.m_elementName);
if (prefix != null) m_elemContext.m_elementURI = m_prefixMap.lookupNamespace(prefix);
}
if ((null != m_elemContext.m_elementURI) && m_elemContext.m_elementURI.length() == 0)
m_elemContext.m_elementURI = null;
int nElems = m_cdataSectionElements.size();
// loop through 2 at a time, as these are pairs of URI and localName
for (int i = 0; i < nElems; i += 2) {
String uri = (String) m_cdataSectionElements.elementAt(i);
String loc = (String) m_cdataSectionElements.elementAt(i + 1);
if (loc.equals(m_elemContext.m_elementLocalName)
&& subPartMatch(m_elemContext.m_elementURI, uri)) {
b = true;
break;
}
}
}
return b;
}
/**
* Returns the URI of an element or attribute. Note that default namespaces do not apply directly
* to attributes.
*
* @param qname a qualified name
* @param isElement true if the qualified name is the name of an element.
* @return returns the namespace URI associated with the qualified name.
*/
public String getNamespaceURI(String qname, boolean isElement) {
String uri = EMPTYSTRING;
int col = qname.lastIndexOf(':');
final String prefix = (col > 0) ? qname.substring(0, col) : EMPTYSTRING;
if (!EMPTYSTRING.equals(prefix) || isElement) {
if (m_prefixMap != null) {
uri = m_prefixMap.lookupNamespace(prefix);
if (uri == null && !prefix.equals(XMLNS_PREFIX)) {
throw new RuntimeException(
Utils.messages.createMessage(
MsgKey.ER_NAMESPACE_PREFIX, new Object[] {qname.substring(0, col)}));
}
}
}
return uri;
}
/**
* If at runtime, when the qname of the attribute is known, another prefix is specified for the
* attribute, then we can patch or hack the name with this method. For a qname of the form
* "ns?:otherprefix:name", this function patches the qname by simply ignoring "otherprefix". TODO:
* This method is a HACK! We do not have access to the XML file, it sometimes generates a NS
* prefix of the form "ns?" for an attribute.
*/
protected String patchName(String qname) {
final int lastColon = qname.lastIndexOf(':');
if (lastColon > 0) {
final int firstColon = qname.indexOf(':');
final String prefix = qname.substring(0, firstColon);
final String localName = qname.substring(lastColon + 1);
// If uri is "" then ignore prefix
final String uri = m_prefixMap.lookupNamespace(prefix);
if (uri != null && uri.length() == 0) {
return localName;
} else if (firstColon != lastColon) {
return prefix + ':' + localName;
}
}
return qname;
}
/**
* Returns the URI of prefix (if any)
*
* @param prefix the prefix whose URI is searched for
* @return the namespace URI currently associated with the prefix, null if the prefix is
* undefined.
*/
public String getNamespaceURIFromPrefix(String prefix) {
String uri = null;
if (m_prefixMap != null) uri = m_prefixMap.lookupNamespace(prefix);
return uri;
}
/**
* Returns the prefix currently pointing to the given URI (if any).
*
* @param namespaceURI the uri of the namespace in question
* @return a prefix pointing to the given URI (if any).
* @see ExtendedContentHandler#getPrefix(String)
*/
public String getPrefix(String namespaceURI) {
String prefix = m_prefixMap.lookupPrefix(namespaceURI);
return prefix;
}
