private void encodeV2Attributes(
ByteStringBuilder buffer,
Map<AttributeType, List<Attribute>> attributes,
EntryEncodeConfig config)
throws DirectoryException {
int numAttributes = 0;
// First count how many attributes are there to encode.
for (List<Attribute> attrList : attributes.values()) {
for (Attribute a : attrList) {
if (a.isVirtual() || a.isEmpty()) {
continue;
}
numAttributes++;
}
}
// Encoded one-to-five byte number of attributes
buffer.appendBERLength(numAttributes);
if (config.compressAttributeDescriptions()) {
for (List<Attribute> attrList : attributes.values()) {
for (Attribute a : attrList) {
if (a.isVirtual() || a.isEmpty()) {
continue;
}
ByteStringBuilder bsb = new ByteStringBuilder();
config.getCompressedSchema().encodeAttribute(bsb, a);
buffer.appendBERLength(bsb.length());
buffer.append(bsb);
}
}
} else {
// The attributes will be encoded as a sequence of:
// - A UTF-8 byte representation of the attribute name.
// - A zero delimiter
// - A one-to-five byte number of values for the attribute
// - A sequence of:
// - A one-to-five byte length for the value
// - A UTF-8 byte representation for the value
for (List<Attribute> attrList : attributes.values()) {
for (Attribute a : attrList) {
byte[] nameBytes = getBytes(a.getNameWithOptions());
buffer.append(nameBytes);
buffer.append((byte) 0x00);
buffer.appendBERLength(a.size());
for (AttributeValue v : a) {
buffer.appendBERLength(v.getValue().length());
buffer.append(v.getValue());
}
}
}
}
}
/**
* The attributes will be encoded as a sequence of: - A UTF-8 byte representation of the attribute
* name. - A zero delimiter - A one-to-five byte number of values for the attribute - A sequence
* of: - A one-to-five byte length for the value - A UTF-8 byte representation for the value
*/
private void append(ByteStringBuilder buffer, Map<AttributeType, List<Attribute>> attributes) {
for (List<Attribute> attrList : attributes.values()) {
for (Attribute a : attrList) {
byte[] nameBytes = getBytes(a.getNameWithOptions());
buffer.appendBytes(nameBytes);
buffer.appendByte(0x00);
buffer.appendBERLength(a.size());
for (ByteString v : a) {
buffer.appendBERLength(v.length());
buffer.appendBytes(v);
}
}
}
}