@SuppressWarnings("unchecked")
@Override
public <TInput, TOutput> CommandResult<TOutput> execute(
ServiceLocator locator,
Serialization<TInput> input,
Serialization<TOutput> output,
TInput data,
Principal principal) {
Argument<TInput> arg;
try {
arg = input.deserialize(data, Argument.class, data.getClass());
} catch (IOException e) {
return CommandResult.badRequest(e.getMessage());
}
Optional<Class<?>> manifest = domainModel.find(arg.ReportName);
if (!manifest.isPresent()) {
return CommandResult.badRequest("Couldn't find report type: " + arg.ReportName);
}
if (!permissions.canAccess(manifest.get(), principal)) {
return CommandResult.forbidden(arg.ReportName);
}
if (!Report.class.isAssignableFrom(manifest.get())) {
return CommandResult.badRequest("Specified type is not a report: " + arg.ReportName);
}
final Report report;
try {
report = (Report) input.deserialize(arg.Data, manifest.get());
} catch (IOException e) {
return CommandResult.badRequest(
"Error deserializing report: " + arg.ReportName + ". Reason: " + e.getMessage());
}
final Object result = report.populate(locator);
try {
return CommandResult.success("Report populated", output.serialize(result));
} catch (IOException e) {
return new CommandResult<>(null, "Error serializing result.", 500);
}
}
@Override
public long getProcessedSize(TInput input) {
return input.size();
}