private PropertyRecord readPropertyRecord(long id) throws IOException {
// in_use(byte)+type(int)+key_indexId(int)+prop_blockId(long)+
// prev_prop_id(long)+next_prop_id(long)
PropertyRecord record = new PropertyRecord(id);
byte inUseFlag = channel.get(); // 1
long nextProp = channel.getLong(); // 8
long prevProp = channel.getLong(); // 8
record.setNextProp(nextProp);
record.setPrevProp(prevProp);
boolean inUse = false;
if ((inUseFlag & Record.IN_USE.byteValue()) == Record.IN_USE.byteValue()) {
inUse = true;
}
boolean nodeProperty = true;
if ((inUseFlag & Record.REL_PROPERTY.byteValue()) == Record.REL_PROPERTY.byteValue()) {
nodeProperty = false;
}
long primitiveId = channel.getLong(); // 8
if (primitiveId != -1 && nodeProperty) {
record.setNodeId(primitiveId);
} else if (primitiveId != -1) {
record.setRelId(primitiveId);
}
int nrPropBlocks = channel.get();
assert nrPropBlocks >= 0;
if (nrPropBlocks > 0) {
record.setInUse(true);
}
while (nrPropBlocks-- > 0) {
PropertyBlock block = readPropertyBlock();
if (block == null) {
return null;
}
record.addPropertyBlock(block);
}
if (readDynamicRecords(record, PROPERTY_DELETED_DYNAMIC_RECORD_ADDER) == -1) {
return null;
}
if ((inUse && !record.inUse()) || (!inUse && record.inUse())) {
throw new IllegalStateException(
"Weird, inUse was read in as " + inUse + " but the record is " + record);
}
return record;
}
