authenticator = config.getAuthenticator();
securityContext = authenticator.initializeAndExamineRequest(request, response);
tx.success();
}
final App app = StructrApp.getInstance(securityContext);
// set default value for property view
propertyView.set(securityContext, config.getDefaultPropertyView());
// evaluate constraints and measure query time
double queryTimeStart = System.nanoTime();
// isolate resource authentication
try (final Tx tx = app.tx()) {
resource = ResourceHelper.applyViewTransformation(request, securityContext,
ResourceHelper.optimizeNestedResourceChain(
ResourceHelper.parsePath(securityContext, request, resourceMap, propertyView,
config.getDefaultIdProperty()), config.getDefaultIdProperty()), propertyView);
authenticator.checkResourceAccess(request, resource.getResourceSignature(), propertyView.get(securityContext));
tx.success();
}
// add sorting & paging
String pageSizeParameter = request.getParameter(REQUEST_PARAMETER_PAGE_SIZE);
String pageParameter = request.getParameter(REQUEST_PARAMETER_PAGE_NUMBER);
String offsetId = request.getParameter(REQUEST_PARAMETER_OFFSET_ID);
String sortOrder = request.getParameter(REQUEST_PARAMETER_SORT_ORDER);
String sortKeyName = request.getParameter(REQUEST_PARAMETER_SORT_KEY);
boolean sortDescending = (sortOrder != null && "desc".equals(sortOrder.toLowerCase()));
int pageSize = HttpService.parseInt(pageSizeParameter, NodeFactory.DEFAULT_PAGE_SIZE);
int page = HttpService.parseInt(pageParameter, NodeFactory.DEFAULT_PAGE);
String baseUrl = request.getRequestURI();
PropertyKey sortKey = null;
// set sort key
if (sortKeyName != null) {
Class<? extends GraphObject> type = resource.getEntityClass();
if (type == null) {
// fallback to default implementation
// if no type can be determined
type = AbstractNode.class;
}
sortKey = StructrApp.getConfiguration().getPropertyKeyForDatabaseName(type, sortKeyName);
}
// isolate doGet
boolean retry = true;
while (retry) {
try (final Tx tx = app.tx()) {
result = resource.doGet(sortKey, sortDescending, pageSize, page, offsetId);
tx.success();
retry = false;
} catch (DeadlockDetectedException ddex) {
retry = true;
}
}
result.setIsCollection(resource.isCollectionResource());
result.setIsPrimitiveArray(resource.isPrimitiveArray());
PagingHelper.addPagingParameter(result, pageSize, page);
// timing..
double queryTimeEnd = System.nanoTime();
// store property view that will be used to render the results
result.setPropertyView(propertyView.get(securityContext));
// allow resource to modify result set
resource.postProcessResultSet(result);
DecimalFormat decimalFormat = new DecimalFormat("0.000000000", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
result.setQueryTime(decimalFormat.format((queryTimeEnd - queryTimeStart) / 1000000000.0));
String accept = request.getHeader("Accept");
if (accept != null && accept.contains("text/html")) {
final StreamingHtmlWriter htmlStreamer = new StreamingHtmlWriter(this.propertyView, indentJson, config.getOutputNestingDepth());
// isolate write output
try (final Tx tx = app.tx()) {
response.setContentType("text/html; charset=utf-8");
try (final Writer writer = response.getWriter()) {
htmlStreamer.stream(securityContext, writer, result, baseUrl);
writer.append("\n"); // useful newline
}
tx.success();
}
} else {
final StreamingJsonWriter jsonStreamer = new StreamingJsonWriter(this.propertyView, indentJson, config.getOutputNestingDepth());
// isolate write output
try (final Tx tx = app.tx()) {
response.setContentType("application/json; charset=utf-8");
try (final Writer writer = response.getWriter()) {
jsonStreamer.stream(securityContext, writer, result, baseUrl);