@SuppressWarnings({"unchecked"})
private String createURLInternal(Map paramValues, String encoding, boolean includeContextPath) {
if (encoding == null) encoding = "utf-8";
String contextPath = "";
if (includeContextPath) {
GrailsWebRequest webRequest = (GrailsWebRequest) RequestContextHolder.getRequestAttributes();
if (webRequest != null) {
contextPath = webRequest.getAttributes().getApplicationUri(webRequest.getCurrentRequest());
}
}
if (paramValues == null) paramValues = Collections.EMPTY_MAP;
StringBuilder uri = new StringBuilder(contextPath);
Set usedParams = new HashSet();
String[] tokens = urlData.getTokens();
int paramIndex = 0;
for (int i = 0; i < tokens.length; i++) {
String token = tokens[i];
if (i == tokens.length - 1 && urlData.hasOptionalExtension()) {
token += OPTIONAL_EXTENSION_WILDCARD;
}
Matcher m = OPTIONAL_EXTENSION_WILDCARD_PATTERN.matcher(token);
if (m.find()) {
if (token.startsWith(CAPTURED_WILDCARD)) {
ConstrainedProperty prop = constraints[paramIndex++];
String propName = prop.getPropertyName();
Object value = paramValues.get(propName);
usedParams.add(propName);
if (value != null) {
token = token.replaceFirst(DOUBLE_WILDCARD_PATTERN.pattern(), value.toString());
} else if (prop.isNullable()) {
break;
}
}
uri.append(SLASH);
ConstrainedProperty prop = constraints[paramIndex++];
String propName = prop.getPropertyName();
Object value = paramValues.get(propName);
usedParams.add(propName);
if (value != null) {
String ext = "." + value;
uri.append(
token
.replace(OPTIONAL_EXTENSION_WILDCARD + '?', ext)
.replace(OPTIONAL_EXTENSION_WILDCARD, ext));
} else {
uri.append(
token
.replace(OPTIONAL_EXTENSION_WILDCARD + '?', "")
.replace(OPTIONAL_EXTENSION_WILDCARD, ""));
}
continue;
}
if (token.endsWith("?")) {
token = token.substring(0, token.length() - 1);
}
m = DOUBLE_WILDCARD_PATTERN.matcher(token);
if (m.find()) {
StringBuffer buf = new StringBuffer();
do {
ConstrainedProperty prop = constraints[paramIndex++];
String propName = prop.getPropertyName();
Object value = paramValues.get(propName);
usedParams.add(propName);
if (value == null && !prop.isNullable()) {
throw new UrlMappingException(
"Unable to create URL for mapping ["
+ this
+ "] and parameters ["
+ paramValues
+ "]. Parameter ["
+ prop.getPropertyName()
+ "] is required, but was not specified!");
} else if (value == null) {
m.appendReplacement(buf, "");
} else {
m.appendReplacement(buf, Matcher.quoteReplacement(value.toString()));
}
} while (m.find());
m.appendTail(buf);
try {
String v = buf.toString();
if (v.indexOf(SLASH) > -1 && CAPTURED_DOUBLE_WILDCARD.equals(token)) {
// individually URL encode path segments
if (v.startsWith(SLASH)) {
// get rid of leading slash
v = v.substring(SLASH.length());
}
String[] segs = v.split(SLASH);
for (String segment : segs) {
uri.append(SLASH).append(encode(segment, encoding));
}
} else if (v.length() > 0) {
// original behavior
uri.append(SLASH).append(encode(v, encoding));
} else {
// Stop processing tokens once we hit an empty one.
break;
}
} catch (UnsupportedEncodingException e) {
throw new ControllerExecutionException(
"Error creating URL for parameters ["
+ paramValues
+ "], problem encoding URL part ["
+ buf
+ "]: "
+ e.getMessage(),
e);
}
} else {
uri.append(SLASH).append(token);
}
}
populateParameterList(paramValues, encoding, uri, usedParams);
if (LOG.isDebugEnabled()) {
LOG.debug(
"Created reverse URL mapping ["
+ uri.toString()
+ "] for parameters ["
+ paramValues
+ "]");
}
return uri.toString();
}
@SuppressWarnings("unchecked")
private UrlMappingInfo createUrlMappingInfo(String uri, Matcher m) {
boolean hasOptionalExtension = urlData.hasOptionalExtension();
Map params = new HashMap();
Errors errors = new MapBindingResult(params, "urlMapping");
int groupCount = m.groupCount();
String lastGroup = null;
for (int i = 0; i < groupCount; i++) {
lastGroup = m.group(i + 1);
// if null optional.. ignore
if (i == groupCount - 1 && hasOptionalExtension) {
ConstrainedProperty cp = constraints[constraints.length - 1];
cp.validate(this, lastGroup, errors);
if (errors.hasErrors()) {
return null;
}
params.put(cp.getPropertyName(), lastGroup);
break;
} else {
if (lastGroup == null) continue;
int j = lastGroup.indexOf('?');
if (j > -1) {
lastGroup = lastGroup.substring(0, j);
}
if (constraints.length > i) {
ConstrainedProperty cp = constraints[i];
cp.validate(this, lastGroup, errors);
if (errors.hasErrors()) {
return null;
}
params.put(cp.getPropertyName(), lastGroup);
}
}
}
for (Object key : parameterValues.keySet()) {
params.put(key, parameterValues.get(key));
}
if (controllerName == null) {
controllerName =
createRuntimeConstraintEvaluator(GrailsControllerClass.CONTROLLER, constraints);
}
if (actionName == null) {
actionName = createRuntimeConstraintEvaluator(GrailsControllerClass.ACTION, constraints);
}
if (namespace == null) {
namespace = createRuntimeConstraintEvaluator(NAMESPACE, constraints);
}
if (viewName == null) {
viewName = createRuntimeConstraintEvaluator(GrailsControllerClass.VIEW, constraints);
}
if (redirectInfo == null) {
redirectInfo = createRuntimeConstraintEvaluator("redirect", constraints);
}
DefaultUrlMappingInfo info;
if (forwardURI != null && controllerName == null) {
info = new DefaultUrlMappingInfo(forwardURI, getHttpMethod(), urlData, servletContext);
} else if (viewName != null && controllerName == null) {
info = new DefaultUrlMappingInfo(viewName, params, urlData, servletContext);
} else {
info =
new DefaultUrlMappingInfo(
redirectInfo,
controllerName,
actionName,
namespace,
pluginName,
getViewName(),
getHttpMethod(),
getVersion(),
params,
urlData,
servletContext);
}
if (parseRequest) {
info.setParsingRequest(parseRequest);
}
return info;
}
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;
}
}
}
}
