private void addDCValue(Context c, Item i, String schema, Node n)
throws TransformerException, SQLException, AuthorizeException {
String value = getStringValue(n); // n.getNodeValue();
// compensate for empty value getting read as "null", which won't display
if (value == null) {
value = "";
}
// //getElementData(n, "element");
String element = getAttributeValue(n, "element");
String qualifier = getAttributeValue(n, "qualifier"); // NodeValue();
// //getElementData(n,
// "qualifier");
String language = getAttributeValue(n, "language");
if (language != null) {
language = language.trim();
}
if (!isQuiet) {
System.out.println(
"\tSchema: "
+ schema
+ " Element: "
+ element
+ " Qualifier: "
+ qualifier
+ " Value: "
+ value);
}
if ("none".equals(qualifier) || "".equals(qualifier)) {
qualifier = null;
}
// if language isn't set, use the system's default value
if (StringUtils.isEmpty(language)) {
language = ConfigurationManager.getProperty("default.language");
}
// a goofy default, but there it is
if (language == null) {
language = "en";
}
if (!isTest) {
i.addMetadata(schema, element, qualifier, language, value);
} else {
// If we're just test the import, let's check that the actual metadata field exists.
MetadataSchema foundSchema = MetadataSchema.find(c, schema);
if (foundSchema == null) {
System.out.println("ERROR: schema '" + schema + "' was not found in the registry.");
return;
}
int schemaID = foundSchema.getSchemaID();
MetadataField foundField = MetadataField.findByElement(c, schemaID, element, qualifier);
if (foundField == null) {
System.out.println(
"ERROR: Metadata field: '"
+ schema
+ "."
+ element
+ "."
+ qualifier
+ "' was not found in the registry.");
return;
}
}
}
/**
* Return true if and only if the schema has a field with the given element and qualifier pair.
*
* @param context dspace context
* @param schemaID schema by ID
* @param element element name
* @param qualifier qualifier name
* @return true if the field exists
* @throws SQLException
* @throws AuthorizeException
*/
private static boolean hasElement(Context context, int schemaID, String element, String qualifier)
throws SQLException, AuthorizeException {
return MetadataField.findByElement(context, schemaID, element, qualifier) != null;
}
/**
* Simple command-line rig for testing the DIM output of a stylesheet. Usage: java
* XSLTIngestionCrosswalk <crosswalk-name> <input-file>
*/
public static void main(String[] argv) throws Exception {
if (argv.length < 2) {
System.err.println("Usage: java XSLTIngestionCrosswalk [-l] <crosswalk-name> <input-file>");
System.exit(1);
}
int i = 0;
boolean list = false;
// skip first arg if it's the list option
if (argv.length > 2 && argv[0].equals("-l")) {
++i;
list = true;
}
IngestionCrosswalk xwalk =
(IngestionCrosswalk) PluginManager.getNamedPlugin(IngestionCrosswalk.class, argv[i]);
if (xwalk == null) {
System.err.println(
"Error, cannot find an IngestionCrosswalk plugin for: \"" + argv[i] + "\"");
System.exit(1);
}
XSLTransformer xform = ((XSLTIngestionCrosswalk) xwalk).getTransformer(DIRECTION);
if (xform == null)
throw new CrosswalkInternalException(
"Failed to initialize transformer, probably error loading stylesheet.");
SAXBuilder builder = new SAXBuilder();
Document inDoc = builder.build(new FileInputStream(argv[i + 1]));
XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat());
Document dimDoc = null;
List dimList = null;
if (list) {
dimList = xform.transform(inDoc.getRootElement().getChildren());
outputter.output(dimList, System.out);
} else {
dimDoc = xform.transform(inDoc);
outputter.output(dimDoc, System.out);
dimList = dimDoc.getRootElement().getChildren();
}
// Sanity-check the generated DIM, make sure it would load.
Context context = new Context();
Iterator di = dimList.iterator();
while (di.hasNext()) {
// skip over comment, text and other trash some XSLs generate..
Object o = di.next();
if (!(o instanceof Element)) continue;
Element elt = (Element) o;
if (elt.getName().equals("field") && elt.getNamespace().equals(DIM_NS)) {
String schema = elt.getAttributeValue("mdschema");
String element = elt.getAttributeValue("element");
String qualifier = elt.getAttributeValue("qualifier");
MetadataSchema ms = MetadataSchema.find(context, schema);
if (ms == null) {
System.err.println(
"DIM Error, Cannot find metadata schema for: schema=\""
+ schema
+ "\" (... element=\""
+ element
+ "\", qualifier=\""
+ qualifier
+ "\")");
} else {
if (qualifier != null && qualifier.equals("")) {
System.err.println(
"DIM Warning, qualifier is empty string: "
+ " schema=\""
+ schema
+ "\", element=\""
+ element
+ "\", qualifier=\""
+ qualifier
+ "\"");
qualifier = null;
}
MetadataField mf =
MetadataField.findByElement(context, ms.getSchemaID(), element, qualifier);
if (mf == null)
System.err.println(
"DIM Error, Cannot find metadata field for: schema=\""
+ schema
+ "\", element=\""
+ element
+ "\", qualifier=\""
+ qualifier
+ "\"");
}
} else {
// ("Got unexpected element in DIM list: "+elt.toString());
throw new MetadataValidationException(
"Got unexpected element in DIM list: " + elt.toString());
}
}
}
