func (r *BlockTreeTermsReader) seekDir(input store.IndexInput, dirOffset int64) (err error) {
log.Printf("Seeking to: %v", dirOffset)
if r.version >= BTT_INDEX_VERSION_APPEND_ONLY {
input.Seek(input.Length() - 8)
if dirOffset, err = input.ReadLong(); err != nil {
return err
}
}
input.Seek(dirOffset)
return nil
}
func (r *BlockTreeTermsReader) readIndexHeader(input store.IndexInput) (version int, err error) {
version, err = asInt(codec.CheckHeader(input, BTT_INDEX_CODEC_NAME, BTT_INDEX_VERSION_START, BTT_INDEX_VERSION_CURRENT))
if err != nil {
return version, err
}
if version < BTT_INDEX_VERSION_APPEND_ONLY {
r.indexDirOffset, err = input.ReadLong()
if err != nil {
return version, err
}
}
return version, nil
}
/*
Lucene42DocValuesProducer.java
Line 126
*/
func (dvp *Lucene42DocValuesProducer) readFields(meta store.IndexInput, infos FieldInfos) (err error) {
fieldNumber, err := meta.ReadVInt()
for fieldNumber != -1 && err == nil {
fieldType, err := meta.ReadByte()
if err != nil {
break
}
switch fieldType {
case LUCENE42_DV_NUMBER:
entry := NumericEntry{}
entry.offset, err = meta.ReadLong()
if err != nil {
return err
}
entry.format, err = meta.ReadByte()
if err != nil {
return err
}
switch entry.format {
case LUCENE42_DV_DELTA_COMPRESSED:
case LUCENE42_DV_TABLE_COMPRESSED:
case LUCENE42_DV_GCD_COMPRESSED:
case LUCENE42_DV_UNCOMPRESSED:
default:
return errors.New(fmt.Sprintf("Unknown format: %v, input=%v", entry.format, meta))
}
if entry.format != LUCENE42_DV_UNCOMPRESSED {
n, err := meta.ReadVInt()
if err != nil {
return err
}
entry.packedIntsVersion = int(n)
}
case LUCENE42_DV_BYTES:
panic("not implemented yet")
case LUCENE42_DV_FST:
panic("not implemented yet")
default:
return errors.New(fmt.Sprintf("invalid entry type: %v, input=%v", fieldType, meta))
}
fieldNumber, err = meta.ReadVInt()
}
return err
}