/** {@inheritDoc} */
@Override
protected List<Node> getMarkupSubstitutes(final Arguments arguments, final Element element) {
final List<Node> nodes = new ArrayList<>();
final Configuration configuration = arguments.getConfiguration();
// Obtain the attribute value
final IWebContext context = (IWebContext) arguments.getContext();
final String contextPath =
StringUtils.defaultIfEmpty(
element.getAttributeValue(SpringHrefAttrProcessor.ATTR_NAME),
context.getServletContext().getContextPath());
// Obtain the Thymeleaf Standard Expression parser
final IStandardExpressionParser parser = StandardExpressions.getExpressionParser(configuration);
// Parse the attribute value as a Thymeleaf Standard Expression
final String pageAttrValue = element.getAttributeValue(ATTR_PAGE);
final IStandardExpression expression =
parser.parseExpression(configuration, arguments, pageAttrValue);
Page<?> page = (Page<?>) expression.execute(configuration, arguments);
final Element container = new Element("ul");
container.setAttribute("class", "pagination");
container.addChild(getFirstElement(page, contextPath));
container.addChild(getPreviousElement(page, contextPath));
addStepElements(page, contextPath, container);
container.addChild(getNextElement(page, contextPath));
container.addChild(getLastElement(page, contextPath));
nodes.add(container);
return nodes;
}
FragmentSelection parseFragmentSelection(
final Arguments arguments, final String input, final boolean preprocess) {
final String trimmedInput = input.trim();
final String preprocessedInput =
(preprocess ? preprocess(arguments, trimmedInput) : trimmedInput);
final FragmentSelection cachedFragmentSelection =
CACHE.getFragmentSelectionFromCache(arguments.getConfiguration(), preprocessedInput);
if (cachedFragmentSelection != null) {
return cachedFragmentSelection;
}
final FragmentSelection fragmentSelection = FragmentSelection.parse(preprocessedInput);
if (fragmentSelection == null) {
throw new TemplateProcessingException(
"Could not parse as fragment selection: \"" + input + "\"");
}
CACHE.putFragmentSelectionIntoCache(
arguments.getConfiguration(), preprocessedInput, fragmentSelection);
return fragmentSelection;
}
ExpressionSequence parseExpressionSequence(
final Arguments arguments, final String input, final boolean preprocess) {
final String trimmedInput = input.trim();
final String preprocessedInput =
(preprocess ? preprocess(arguments, trimmedInput) : trimmedInput);
final ExpressionSequence cachedExpressionSequence =
CACHE.getExpressionSequenceFromCache(arguments.getConfiguration(), preprocessedInput);
if (cachedExpressionSequence != null) {
return cachedExpressionSequence;
}
final ExpressionSequence expressionSequence = ExpressionSequence.parse(preprocessedInput);
if (expressionSequence == null) {
throw new TemplateProcessingException(
"Could not parse as expression sequence: \"" + input + "\"");
}
CACHE.putExpressionSequenceIntoCache(
arguments.getConfiguration(), preprocessedInput, expressionSequence);
return expressionSequence;
}
AssignationSequence parseAssignationSequence(
final Arguments arguments,
final String input,
final boolean preprocess,
final boolean allowParametersWithoutValue) {
final String trimmedInput = input.trim();
final String preprocessedInput =
(preprocess ? preprocess(arguments, trimmedInput) : trimmedInput);
final AssignationSequence cachedAssignationSequence =
CACHE.getAssignationSequenceFromCache(arguments.getConfiguration(), preprocessedInput);
if (cachedAssignationSequence != null) {
return cachedAssignationSequence;
}
final AssignationSequence assignationSequence =
AssignationSequence.parse(preprocessedInput, allowParametersWithoutValue);
if (assignationSequence == null) {
throw new TemplateProcessingException(
"Could not parse as assignation sequence: \"" + input + "\"");
}
CACHE.putAssignationSequenceIntoCache(
arguments.getConfiguration(), preprocessedInput, assignationSequence);
return assignationSequence;
}
Each parseEach(final Arguments arguments, final String input, final boolean preprocess) {
final String trimmedInput = input.trim();
final String preprocessedInput =
(preprocess ? preprocess(arguments, trimmedInput) : trimmedInput);
final Each cachedEach = CACHE.getEachFromCache(arguments.getConfiguration(), preprocessedInput);
if (cachedEach != null) {
return cachedEach;
}
final Each each = Each.parse(preprocessedInput);
if (each == null) {
throw new TemplateProcessingException("Could not parse as each: \"" + input + "\"");
}
CACHE.putEachIntoCache(arguments.getConfiguration(), preprocessedInput, each);
return each;
}
/**
* Parses the playframework action expressions. The string inside "()" is evaluated by OGNL in the
* current context.
*
* @param arguments
* @param attributeValue e.g. "Application.show(obj.id)"
* @return parsed action path
*/
@SuppressWarnings("unchecked")
static String toActionString(final Arguments arguments, String attributeValue) {
Matcher matcher = PARAM_PATTERN.matcher(attributeValue);
if (!matcher.matches()) {
return Router.reverse(attributeValue).toString();
}
String exp = matcher.group(1);
if (StringUtils.isBlank(exp)) {
return Router.reverse(attributeValue).toString();
}
Object obj =
PlayOgnlVariableExpressionEvaluator.INSTANCE.evaluate(
arguments.getConfiguration(), arguments, exp, false);
if (obj instanceof Map) {
return Router.reverse(attributeValue, (Map<String, Object>) obj).toString();
}
List<?> list = obj instanceof List ? (List<?>) obj : Arrays.asList(obj);
Map<String, Object> paramMap = new HashMap<String, Object>();
String extracted = StringUtils.substringBefore(attributeValue, "(");
if (!extracted.contains(".")) {
extracted = Request.current().controller + "." + extracted;
}
Object[] actionMethods = ActionInvoker.getActionMethod(extracted);
String[] paramNames = null;
try {
paramNames = Java.parameterNames((Method) actionMethods[1]);
} catch (Exception e) {
throw new RuntimeException(e);
}
if (paramNames.length < list.size()) {
Logger.warn("param length unmatched. %s", Arrays.toString(paramNames));
throw new ActionNotFoundException(attributeValue, null);
}
for (int i = 0; i < list.size(); i++) {
paramMap.put(paramNames[i], list.get(i));
}
return Router.reverse(extracted, paramMap).toString();
}
