/**
* Apply a list of changes to the metadata record in current editing session.
*
* <p>The changes are a list of KVP. A key contains at least the element identifier from the
* meta-document. A key starting with an "X" should contain an XML fragment for the value. The
* following KVP combinations are allowed:
*
* <ul>
* <li>ElementId=ElementValue
* <li>ElementId_AttributeName=AttributeValue
* <li>ElementId_AttributeNamespacePrefixCOLONAttributeName=AttributeValue
* <li>XElementId=ElementValue
* <li>XElementId_ElementName=ElementValue
* </ul>
*
* ElementName MUST contain "{@value #COLON_SEPARATOR}" instead of ":" for prefixed elements.
*
* <p>When using X key, value could contains many XML fragments (eg. <gmd:keywords
* .../>{@value #XML_FRAGMENT_SEPARATOR}<gmd:keywords .../>) separated by {@link
* #XML_FRAGMENT_SEPARATOR}. All those fragments are inserted to the last element of this type in
* its parent if ElementName is set. If not, the element with ElementId is replaced.
*
* <p>
*
* @param dbms
* @param id Metadata internal identifier.
* @param changes List of changes to apply.
* @return The update metadata record
* @throws Exception
*/
protected Element applyChangesEmbedded(Dbms dbms, String id, Hashtable changes) throws Exception {
String schema = dataManager.getMetadataSchema(dbms, id);
EditLib editLib = dataManager.getEditLib();
// --- get metadata from session
Element md = getMetadataFromSession(session, id);
// Store XML fragments to be handled after other elements update
Map<String, String> xmlInputs = new HashMap<String, String>();
// --- update elements
for (Enumeration e = changes.keys(); e.hasMoreElements(); ) {
String ref = ((String) e.nextElement()).trim();
String value = ((String) changes.get(ref)).trim();
String attribute = null;
// Avoid empty key
if (ref.equals("")) {
continue;
}
// Catch element starting with a X to replace XML fragments
if (ref.startsWith("X")) {
ref = ref.substring(1);
xmlInputs.put(ref, value);
continue;
}
if (updatedLocalizedTextElement(md, ref, value, editLib)) {
continue;
}
int at = ref.indexOf('_');
if (at != -1) {
attribute = ref.substring(at + 1);
ref = ref.substring(0, at);
}
Element el = editLib.findElement(md, ref);
if (el == null) {
Log.error(Geonet.EDITOR, MSG_ELEMENT_NOT_FOUND_AT_REF + ref);
continue;
}
// Process attribute
if (attribute != null) {
Pair<Namespace, String> attInfo =
parseAttributeName(attribute, COLON_SEPARATOR, id, md, dbms, editLib);
String localname = attInfo.two();
Namespace attrNS = attInfo.one();
if (el.getAttribute(localname, attrNS) != null) {
el.setAttribute(new Attribute(localname, value, attrNS));
}
} else {
// Process element value
List content = el.getContent();
for (int i = 0; i < content.size(); i++) {
if (content.get(i) instanceof Text) {
el.removeContent((Text) content.get(i));
i--;
}
}
el.addContent(value);
}
}
// Deals with XML fragments to insert or update
if (!xmlInputs.isEmpty()) {
// Loop over each XML fragments to insert or replace
for (String ref : xmlInputs.keySet()) {
String value = xmlInputs.get(ref);
String name = null;
int addIndex = ref.indexOf('_');
if (addIndex != -1) {
name = ref.substring(addIndex + 1);
ref = ref.substring(0, addIndex);
}
// Get element to fill
Element el = editLib.findElement(md, ref);
if (el == null) {
Log.error(Geonet.EDITOR, MSG_ELEMENT_NOT_FOUND_AT_REF + ref);
continue;
}
if (value != null && !value.equals("")) {
String[] fragments = value.split(XML_FRAGMENT_SEPARATOR);
for (String fragment : fragments) {
if (name != null) {
if (Log.isDebugEnabled(Geonet.EDITOR))
Log.debug(
Geonet.EDITOR,
"Add XML fragment; " + fragment + " to element with ref: " + ref);
name = name.replace(COLON_SEPARATOR, ":");
editLib.addFragment(schema, el, name, fragment);
} else {
if (Log.isDebugEnabled(Geonet.EDITOR))
Log.debug(
Geonet.EDITOR,
"Add XML fragment; "
+ fragment
+ " to element with ref: "
+ ref
+ " replacing content.");
// clean before update
el.removeContent();
fragment = addNamespaceToFragment(fragment);
// Add content
el.addContent(Xml.loadString(fragment, false));
}
}
}
}
}
// --- remove editing info
editLib.removeEditingInfo(md);
editLib.contractElements(md);
return (Element) md.detach();
}
