@Override
public String toString() {
return urlData.getUrlPattern();
}
private void parse(UrlMappingData data, ConstrainedProperty[] constraints) {
Assert.notNull(data, "Argument [data] cannot be null");
String[] urls = data.getLogicalUrls();
urlData = data;
patterns = new Pattern[urls.length];
for (int i = 0; i < urls.length; i++) {
String url = urls[i];
Integer slashCount = org.springframework.util.StringUtils.countOccurrencesOf(url, "/");
List<Pattern> tokenCountPatterns = patternByTokenCount.get(slashCount);
if (tokenCountPatterns == null) {
tokenCountPatterns = new ArrayList<Pattern>();
patternByTokenCount.put(slashCount, tokenCountPatterns);
}
Pattern pattern = convertToRegex(url);
if (pattern == null) {
throw new IllegalStateException(
"Cannot use null pattern in regular expression mapping for url ["
+ data.getUrlPattern()
+ "]");
}
tokenCountPatterns.add(pattern);
this.patterns[i] = pattern;
}
if (constraints != null) {
String[] tokens = data.getTokens();
int pos = 0;
int currentToken = 0;
int tokensLength = tokens.length - 1;
int constraintUpperBound = constraints.length;
if (data.hasOptionalExtension()) {
constraintUpperBound--;
constraints[constraintUpperBound].setNullable(true);
}
for (int i = 0; i < constraintUpperBound; i++) {
ConstrainedProperty constraint = constraints[i];
if (currentToken > tokensLength) break;
String token = tokens[currentToken];
int shiftLength = 3;
pos = token.indexOf(CAPTURED_WILDCARD, pos);
while (pos == -1) {
boolean isLastToken = currentToken == tokensLength - 1;
if (currentToken < tokensLength) {
token = tokens[++currentToken];
// special handling for last token to deal with optional extension
if (isLastToken) {
if (token.startsWith(CAPTURED_WILDCARD + '?')) {
constraint.setNullable(true);
}
if (token.endsWith(OPTIONAL_EXTENSION_WILDCARD + '?')) {
constraints[constraints.length - 1].setNullable(true);
}
} else {
pos = token.indexOf(CAPTURED_WILDCARD, pos);
}
} else {
break;
}
}
if (pos != -1
&& pos + shiftLength < token.length()
&& token.charAt(pos + shiftLength) == '?') {
constraint.setNullable(true);
}
// Move on to the next place-holder.
pos += shiftLength;
if (token.indexOf(CAPTURED_WILDCARD, pos) == -1) {
currentToken++;
pos = 0;
}
}
}
}