private Asset createAssetFromResource(Resource resource) {
// The class of the resource is derived from the class of the base resource.
// So we can then use the class of the resource as a key to locate the correct asset
// factory.
try {
upgradeReadLockToWriteLock();
// Check for competing thread beat us to it (not very likely!):
Asset result = TapestryInternalUtils.getAndDeref(cache, resource);
if (result != null) {
return result;
}
Class resourceClass = resource.getClass();
AssetFactory factory = registry.get(resourceClass);
return factory.createAsset(resource);
} finally {
downgradeWriteLockToReadLock();
}
}
private Asset getAssetForResource(Resource resource) {
try {
acquireReadLock();
Asset result = TapestryInternalUtils.getAndDeref(cache, resource);
if (result == null) {
result = createAssetFromResource(resource);
cache.put(resource, new SoftReference(result));
}
return result;
} finally {
releaseReadLock();
}
}
public ColumnSort getColumnSort(String columnId) {
if (!TapestryInternalUtils.isEqual(columnId, sortColumnId)) return ColumnSort.UNSORTED;
return getColumnSort();
}
private boolean isSelected(String clientValue) {
return TapestryInternalUtils.isEqual(clientValue, selectedClientValue);
}
/**
* Ajax event handler, form client side to get the data to display to parse it according to the
* server-side format. see http://www.trirand.com/jqgridwiki/doku.php?id=wiki:retrieving_data for
* more details
*/
@OnEvent(value = "Data")
JSONObject onData() {
String page = request.getParameter(PAGE);
int requestedPageNumber = Integer.parseInt(page);
String search = request.getParameter(SEARCH);
String searchField = request.getParameter(SEARCH_FIELD);
String searchString = request.getParameter(SEARCH_STRING);
String searchOper = request.getParameter(SEARCH_OPER);
// searchField=tax&searchString=100&searchOper=gt
if (search.equals("false")) source.resetFilter();
else if (searchField != null && searchOper != null && searchString != null) {
SearchOperator op = SearchOperator.valueOf(searchOper);
Class searchType = getDataModel().get(searchField).getConduit().getPropertyType();
Object searchValue = typeCoercer.coerce(searchString, searchType);
SearchConstraint searchFor =
new SearchConstraint(
searchField, op, searchValue, getDataModel().get(searchField).getConduit());
List<SearchConstraint> lst = new ArrayList();
lst.add(searchFor);
source.setFilter(lst);
}
String nd = request.getParameter(ND);
String rowsSelected = request.getParameter(ROWS);
int rowsPerPage = Integer.parseInt(rowsSelected);
String sidx = request.getParameter(SIDX);
String arrayString[] = sidx.split("\\s+");
// get only the start
sidx = arrayString[0];
String sord = request.getParameter(SORD);
JSONObject response = new JSONObject();
int records = source.getAvailableRows();
int nbPages = records / rowsPerPage;
int modulo = records % rowsPerPage;
if (modulo > 0) nbPages++;
int startIndex = 0 + (requestedPageNumber - 1) * rowsPerPage;
int endIndex = startIndex + rowsPerPage - 1;
if (endIndex > records - 1) endIndex = records - 1;
response.put("page", requestedPageNumber);
response.put("total", nbPages);
response.put("records", records);
List<SortConstraint> sortConstraints = new ArrayList();
if (!sidx.isEmpty()) {
GridSortModel sortModel = getSortModel();
ColumnSort colSort = sortModel.getColumnSort(sidx);
if (sord.equals("asc")) setSortAscending(true);
else setSortAscending(false);
sortModel.updateSort(sidx);
sortConstraints = sortModel.getSortConstraints();
}
source.prepare(startIndex, endIndex, sortConstraints);
JSONArray rows = new JSONArray();
for (int index = startIndex; index <= endIndex; index++) {
JSONObject row = new JSONObject();
row.put("id", index);
JSONArray cell = new JSONArray();
// Class c = dataSource.getRowType();
Object obj = source.getRowValue(index);
List<String> names = getDataModel().getPropertyNames();
for (String name : names) {
PropertyConduit conduit = getDataModel().get(name).getConduit();
Class type = conduit.getPropertyType();
// Block displayBlock =
// defaultBeanBlockSource.getDisplayBlock(getDataModel().get(name).getDataType());
try {
String cellValue;
Object val = conduit.get(obj);
// todo use BeanBlockSource or ...
if (type.equals(Date.class)) {
// mimic PropertyDisplayBlock
Date cellDate = (Date) val;
DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.MEDIUM, locale);
cellValue = dateFormat.format(cellDate);
} else if (type.equals(Enum.class)) {
cellValue =
TapestryInternalUtils.getLabelForEnum(overrides.getOverrideMessages(), (Enum) val);
} else {
if (val == null) cellValue = "undefined " + name;
else cellValue = typeCoercer.coerce(val, String.class);
// ValueEncoder valueEncoder =encoderSource.getValueEncoder(type);
// cellValue = valueEncoder.toClient(val);
}
cell.put(cellValue);
} catch (NullPointerException ex) {
cell.put("undefined " + name);
}
}
row.put("cell", cell);
rows.put(row);
}
response.put("rows", rows);
// {"page":"1","total":2,"records":"13",
// "rows":[{"id":"13","cell":["13","2007-10-06","Client 3","1000.00","0.00","1000.00",null]},
// {"id":"12","cell":["12","2007-10-06","Client 2","700.00","140.00","840.00",null]},
// {"id":"11","cell":["11","2007-10-06","Client 1","600.00","120.00","720.00",null]},
// {"id":"10","cell":["10","2007-10-06","Client 2","100.00","20.00","120.00",null]},
// {"id":"9","cell":["9","2007-10-06","Client 1","200.00","40.00","240.00",null]},
// {"id":"8","cell":["8","2007-10-06","Client 3","200.00","0.00","200.00",null]},
// {"id":"7","cell":["7","2007-10-05","Client 2","120.00","12.00","134.00",null]},
// {"id":"6","cell":["6","2007-10-05","Client 1","50.00","10.00","60.00",""]},
// {"id":"5","cell":["5","2007-10-05","Client 3","100.00","0.00","100.00","no tax at
// all"]},
/// {"id":"4","cell":["4","2007-10-04","Client 3","150.00","0.00","150.00","no tax"]}],
JSONObject userdata = new JSONObject();
response.put("userdata", userdata);
// "userdata":{"amount":3220,"tax":342,"total":3564,"name":"Totals:"}}
return response;
}