diff options
Diffstat (limited to 'src/net/gcdc/asn1/uper/SeqOfCoder.java')
| -rw-r--r-- | src/net/gcdc/asn1/uper/SeqOfCoder.java | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/net/gcdc/asn1/uper/SeqOfCoder.java b/src/net/gcdc/asn1/uper/SeqOfCoder.java new file mode 100644 index 0000000..488e51b --- /dev/null +++ b/src/net/gcdc/asn1/uper/SeqOfCoder.java @@ -0,0 +1,156 @@ +package net.gcdc.asn1.uper; + +import java.lang.annotation.Annotation; +import java.lang.reflect.Field; +import java.lang.reflect.ParameterizedType; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Iterator; +import java.util.List; + +import net.gcdc.asn1.datatypes.FixedSize; +import net.gcdc.asn1.datatypes.SizeRange; +import net.gcdc.asn1.uper.SimpleTypeResolver.Unknown; + + +class SeqOfCoder implements Decoder, Encoder { + + @Override public <T> boolean canEncode(T obj, Annotation[] extraAnnotations) { + return obj instanceof List<?>; + } + + @Override public <T> void encode(BitBuffer bitbuffer, T obj, Annotation[] extraAnnotations) throws Asn1EncodingException { + Class<?> type = obj.getClass(); + UperEncoder.logger.debug(String.format("SEQUENCE OF %s",obj.getClass().getName())); + AnnotationStore annotations = new AnnotationStore(type.getAnnotations(), extraAnnotations); + List<?> list = (List<?>) obj; + + final FixedSize fixedSize = annotations.getAnnotation(FixedSize.class); + + //CG pass annotations too each field encoding + Annotation[] annotationArray = new Annotation[] {}; + if (annotations != null & annotations.getAnnotations() != null && !annotations.getAnnotations().isEmpty()) { + ArrayList<Annotation> fieldAnnotations = new ArrayList<Annotation>(); + fieldAnnotations.addAll(annotations.getAnnotations()); + annotationArray = new Annotation[fieldAnnotations.size()]; + for (int i = 0; i< fieldAnnotations.size();i++){ + annotationArray[i] = fieldAnnotations.get(i); + } + } + + SizeRange sizeRange = annotations.getAnnotation(SizeRange.class); + if (fixedSize != null) + sizeRange = new SizeRange() { + @Override public Class<? extends Annotation> annotationType() { return SizeRange.class; } + @Override public int minValue() { return fixedSize.value(); } + @Override public int maxValue() { return fixedSize.value(); } + @Override public boolean hasExtensionMarker() { return false; } + }; + if (sizeRange == null) { + int position1 = bitbuffer.position(); + try { + UperEncoder.encodeLengthDeterminant(bitbuffer, list.size()); + } catch (Asn1EncodingException e) { + throw new Asn1EncodingException(" number of elements ", e); + } + UperEncoder.logger.debug(String.format("unbound size %d, encoded as %s", list.size(), + bitbuffer.toBooleanStringFromPosition(position1))); + UperEncoder.logger.debug(String.format(" all elems of Seq Of: %s", list )); + for (Object elem : list) { + try { + UperEncoder.encode2(bitbuffer, elem, annotationArray); + } catch (Asn1EncodingException e) { + throw new Asn1EncodingException(" element " + elem.toString(), e); + } + } + return; + } + boolean outsideOfRange = list.size() < sizeRange.minValue() + || sizeRange.maxValue() < list.size(); + if (outsideOfRange && !sizeRange.hasExtensionMarker()) { throw new IllegalArgumentException( + "Out-of-range size for " + obj.getClass() + ", expected " + + sizeRange.minValue() + ".." + sizeRange.maxValue() + ", got " + + list.size()); } + if (sizeRange.hasExtensionMarker()) { + bitbuffer.put(outsideOfRange); + UperEncoder.logger.debug(String.format("With Extension Marker, %s of range (%d <= %d <= %d)", + (outsideOfRange ? "outside" : "inside"), sizeRange.minValue(), list.size(), + sizeRange.maxValue())); + if (outsideOfRange) { throw new UnsupportedOperationException( + "Sequence-of size range extensions are not implemented yet, range " + + sizeRange.minValue() + ".." + sizeRange.maxValue() + + ", requested size " + list.size()); } + } + UperEncoder.logger.debug(String.format("seq-of of constrained size %d, encoding size...", list.size())); + UperEncoder.encodeConstrainedInt(bitbuffer, list.size(), sizeRange.minValue(), sizeRange.maxValue()); + UperEncoder.logger.debug(String.format(" all elems of Seq Of: %s", list)); + for (Object elem : list) { + UperEncoder.encode2(bitbuffer, elem, new Annotation[] {}); + } + } + + @Override public <T> boolean canDecode(Class<T> classOfT, Annotation[] extraAnnotations) { + return List.class.isAssignableFrom(classOfT); + } + + @SuppressWarnings("unchecked") + @Override public <T> T decode(BitBuffer bitbuffer, + Class<T> classOfT,Field field, + Annotation[] extraAnnotations) { + AnnotationStore annotations = new AnnotationStore(classOfT.getAnnotations(), + extraAnnotations); + UperEncoder.logger.debug(String.format("SEQUENCE OF for %s", classOfT)); + FixedSize fixedSize = annotations.getAnnotation(FixedSize.class); + SizeRange sizeRange = annotations.getAnnotation(SizeRange.class); + + //CG pass annotations from the sequence to each element encoding + Annotation[] annotationArray = new Annotation[] {}; + + if (annotations != null && annotations.getAnnotations() != null && !annotations.getAnnotations().isEmpty()){ + annotationArray = new Annotation[annotations.getAnnotations().size()]; + Iterator<Annotation> it = annotations.getAnnotations().iterator(); + int i = 0; + while (it.hasNext()) { + annotationArray[i] = it.next(); + i++; + } + } + + + long size = + (fixedSize != null) ? fixedSize.value() : + (sizeRange != null) ? UperEncoder.decodeConstrainedInt(bitbuffer, UperEncoder.intRangeFromSizeRange(sizeRange)) : + UperEncoder.decodeLengthDeterminant(bitbuffer); + Collection<Object> coll = new ArrayList<Object>((int) size); + + Class<?> classOfElements; + Class<?>[] typeArgs = SimpleTypeResolver.resolveRawArguments(List.class, classOfT); + classOfElements = typeArgs[0]; + if (classOfElements == null || classOfElements == Unknown.class) { + try { + ParameterizedType elementType = (ParameterizedType) field.getGenericType(); + classOfElements = (Class<?>) elementType.getActualTypeArguments()[0]; + } catch (SecurityException e) { + throw new IllegalArgumentException("Can't resolve type of elements for " + classOfT.getName()); + } + } + for (int i = 0; i < size; i++) { + coll.add(UperEncoder.decodeAny(bitbuffer, classOfElements,field, annotationArray)); + } + + T result = null; + try { + result = UperEncoder.instantiate(classOfT, coll); + } catch (Exception e) { + result = (T) coll; + } + return result; + + } + + + @Override + public <T> T getDefault(Class<T> classOfT, Annotation[] extraAnnotations) { + throw new IllegalArgumentException("Default Sequence not yet implemented"); + } +}
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