@Override
public <T> void encode(BitBuffer bitbuffer, T obj, Annotation[] extraAnnotations)
throws Asn1EncodingException {
Class<?> type = obj.getClass();
AnnotationStore annotations = new AnnotationStore(type.getAnnotations(), extraAnnotations);
UperEncoder.logger.debug("SEQUENCE {}", type.getName());
Asn1ContainerFieldSorter sorter = new Asn1ContainerFieldSorter(type);
try {
if (UperEncoder.hasExtensionMarker(annotations)) {
boolean extensionsPresent =
!sorter.extensionFields.isEmpty() && UperEncoder.hasNonNullExtensions(obj, sorter);
UperEncoder.logger.debug(
"with extension marker, {} extensions, extensionBit: <{}>",
extensionsPresent ? "with" : "without",
extensionsPresent);
bitbuffer.put(extensionsPresent);
}
// Bitmask for optional fields.
for (Field f : sorter.optionalOrdinaryFields) {
boolean fieldPresent = f.get(obj) != null;
UperEncoder.logger.debug(
"with optional field {} {}, presence encoded as bit <{}>",
f.getName(),
fieldPresent ? "present" : "absent",
fieldPresent);
bitbuffer.put(fieldPresent); // null means the field is absent.
}
// All ordinary fields (fields within extension root).
for (Field f : sorter.ordinaryFields) {
if ((UperEncoder.isMandatory(f) || f.get(obj) != null)
&& !UperEncoder.isTestInstrumentation(f)) {
UperEncoder.logger.debug("Field : {}", f.getName());
try {
UperEncoder.encode2(bitbuffer, f.get(obj), f.getAnnotations());
} catch (Asn1EncodingException e) {
throw new Asn1EncodingException("." + f.getName(), e);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Illegal value for field " + f.getName(), e);
}
}
}
// Extension fields.
if (UperEncoder.hasExtensionMarker(annotations)
&& !sorter.extensionFields.isEmpty()
&& UperEncoder.hasNonNullExtensions(obj, sorter)) {
// Total extensions count.
int numExtensions = sorter.extensionFields.size();
UperEncoder.logger.debug(
"continuing sequence : {} extension(s) are present, encoding length determinant for them...",
numExtensions);
UperEncoder.encodeLengthOfBitmask(bitbuffer, numExtensions);
// Bitmask for present extensions.
for (Field f : sorter.extensionFields) {
boolean fieldIsPresent = f.get(obj) != null;
UperEncoder.logger.debug(
"Extension {} is {}, presence encoded as <{}>",
f.getName(),
fieldIsPresent ? "present" : "absent",
fieldIsPresent ? "1" : "0");
bitbuffer.put(fieldIsPresent);
}
// Values of extensions themselves.
for (Field f : sorter.extensionFields) {
if (f.get(obj) != null) {
UperEncoder.logger.debug("Encoding extension field {}", f.getName());
try {
UperEncoder.encodeAsOpenType(bitbuffer, f.get(obj), f.getAnnotations());
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(
"Illegal value for extension field " + f.getName(), e);
}
}
}
}
} catch (IllegalArgumentException | IllegalAccessException e) {
throw new IllegalArgumentException("can't encode " + obj, e);
}
sorter.revertAccess();
}
@Override
public <T> T decode(BitBuffer bitbuffer, Class<T> classOfT, Annotation[] extraAnnotations) {
AnnotationStore annotations = new AnnotationStore(classOfT.getAnnotations(), extraAnnotations);
UperEncoder.logger.debug("SEQUENCE");
T result = UperEncoder.instantiate(classOfT);
Asn1ContainerFieldSorter sorter = new Asn1ContainerFieldSorter(classOfT);
boolean extensionPresent = false;
if (UperEncoder.hasExtensionMarker(annotations)) {
extensionPresent = bitbuffer.get();
UperEncoder.logger.debug(
"with extension marker, extension {}", extensionPresent ? "present!" : "absent");
}
// Bitmask for optional fields.
Deque<Boolean> optionalFieldsMask = new ArrayDeque<>(sorter.optionalOrdinaryFields.size());
for (Field f : sorter.optionalOrdinaryFields) {
optionalFieldsMask.add(bitbuffer.get());
UperEncoder.logger.debug(
"with optional field {} {}",
f.getName(),
optionalFieldsMask.getLast() ? "present" : "absent");
}
// All ordinary fields (fields within extension root).
for (Field f : sorter.ordinaryFields) {
if (!UperEncoder.isTestInstrumentation(f)
&& (UperEncoder.isMandatory(f)
|| (UperEncoder.isOptional(f) && optionalFieldsMask.pop()))) {
UperEncoder.logger.debug("Field : {}", f.getName());
try {
f.set(result, UperEncoder.decode2(bitbuffer, f.getType(), f.getAnnotations()));
} catch (IllegalAccessException e) {
throw new IllegalArgumentException(
"can't access 'set method' for field " + f + " of class " + classOfT + " " + e, e);
}
}
}
// Extension fields.
if (UperEncoder.hasExtensionMarker(annotations) && extensionPresent) {
// Number of extensions.
int numExtensions = (int) UperEncoder.decodeLengthOfBitmask(bitbuffer);
UperEncoder.logger.debug("sequence has {} extension(s)", numExtensions);
// Bitmask for extensions.
boolean[] bitmaskValueIsPresent = new boolean[numExtensions];
for (int i = 0; i < numExtensions; i++) {
bitmaskValueIsPresent[i] = bitbuffer.get();
UperEncoder.logger.debug(
"extension {} is {}", i, bitmaskValueIsPresent[i] ? "present" : "absent");
}
// Values.
UperEncoder.logger.debug("decoding extensions values...");
for (int i = 0; i < numExtensions; i++) {
UperEncoder.logger.debug(
"sequence extension {} {}", i, bitmaskValueIsPresent[i] ? "present" : "absent");
if (bitmaskValueIsPresent[i]) {
UperEncoder.logger.debug("decoding extension {}...", i);
Field field = sorter.extensionFields.size() > i ? sorter.extensionFields.get(i) : null;
Class<?> classOfElement = field != null ? field.getType() : null;
try {
Object decodedValue =
UperEncoder.decodeAsOpenType(bitbuffer, classOfElement, field.getAnnotations());
if (field != null) {
field.set(result, decodedValue);
}
} catch (IllegalArgumentException | IllegalAccessException e) {
throw new IllegalArgumentException("can't decode " + classOfT, e);
}
}
}
}
sorter.revertAccess();
return result;
}