public void characters(char[] chars, int start, int len) {
XMLElement e = parser.getCurrentElement();
if (e.getNamespace().equals("http://purl.org/dc/elements/1.1/")) {
String name = e.getName();
if (name.equals("identifier")
|| name.equals("date")
|| name.equals("title")
|| name.equals("language")) {
String val = (String) e.getPrivateData();
String text = new String(chars, start, len);
if (val == null) val = text;
else val = val + text;
e.setPrivateData(val);
}
}
}
public void endElement() {
XMLElement e = parser.getCurrentElement();
if (e.getNamespace().equals("http://purl.org/dc/elements/1.1/")) {
String name = e.getName();
if (name.equals("identifier")) {
String idAttr = e.getAttribute("id");
if (idAttr != null && !idAttr.equals("") && idAttr.equals(uniqueIdent)) {
// String idval = (String) e.getPrivateData();
// if (idval != null && ocf != null)
// ocf.setUniqueIdentifier(idval);
}
} else if (name.equals("date")) {
String dateval = (String) e.getPrivateData();
boolean valid = true;
String detail = null;
if (dateval == null || "".equals(dateval)) {
valid = false;
detail = "zero-length string";
} else {
DateParser dateParser = new DateParser();
try {
Date date = dateParser.parse(dateval.trim());
/*
* mg: DateParser does not enforce four-digit years,
* which http://www.w3.org/TR/NOTE-datetime seems to want
*/
String year = new SimpleDateFormat("yyyy").format(date);
if (year.length() > 4) throw new InvalidDateException(year);
} catch (InvalidDateException d) {
valid = false;
detail = d.getMessage();
}
}
if (!valid) {
if (this.version == EPUBVersion.VERSION_3) {
report.warning(
path,
parser.getLineNumber(),
parser.getColumnNumber(),
"date value '"
+ (dateval == null ? "" : dateval)
+ "' does not follow recommended syntax as per http://www.w3.org/TR/NOTE-datetime:"
+ detail);
} else {
report.error(
path,
parser.getLineNumber(),
parser.getColumnNumber(),
"date value '"
+ (dateval == null ? "" : dateval)
+ "' is not valid as per http://www.w3.org/TR/NOTE-datetime:"
+ detail);
}
}
} else if (name.equals("title") || name.equals("language")) {
// issue 138: issue a warning if dc:title and dc:language is empty for 2.0 and 2.0.1
// note that an empty dc:identifier is checked in opf20.rng and will
// therefore be reported as an error, that may or may not be a good idea.
if (version == EPUBVersion.VERSION_2) {
String value = (String) e.getPrivateData();
if (value == null || value.trim().length() < 1) {
report.warning(
path, parser.getLineNumber(), parser.getColumnNumber(), name + " element is empty");
}
}
}
}
}