Examples with Guess com.bakdata.conquery.models.preproc.parser.specific.string.StringTypeGuesser.Guess used on opensource projects

Example 1 with Guess

use of com.bakdata.conquery.models.preproc.parser.specific.string.StringTypeGuesser.Guess in project conquery by bakdata.

the class StringParser method decideType.

@Override
protected StringStore decideType() {
    // check if a singleton type is enough
    if (strings.isEmpty()) {
        return EmptyStore.INSTANCE;
    }
    // Is this a singleton?
    if (strings.size() == 1) {
        StringTypeSingleton type = new StringTypeSingleton(strings.keySet().iterator().next(), BitSetStore.create(getLines()));
        return type;
    }
    // remove prefix and suffix
    if (!StringUtils.isEmpty(prefix) || !StringUtils.isEmpty(suffix)) {
        log.debug("Reduced strings by the '{}' prefix and '{}' suffix", prefix, suffix);
        Object2IntMap<String> oldStrings = strings;
        strings = new Object2IntOpenHashMap<>(oldStrings.size());
        for (Object2IntMap.Entry<String> e : oldStrings.object2IntEntrySet()) {
            strings.put(e.getKey().substring(prefix.length(), e.getKey().length() - suffix.length()), e.getIntValue());
        }
    }
    decode();
    // Try all guesses and select the least memory intensive one.
    // TODO FK: Simplify this, the guessers do a lot of weird lazy computation but implicit.
    Guess guess = Stream.of(new TrieTypeGuesser(this), new MapTypeGuesser(this), new NumberTypeGuesser(this, getConfig())).map(StringTypeGuesser::createGuess).filter(Objects::nonNull).min(Comparator.naturalOrder()).orElseThrow();
    log.debug("\tUsing {}(est. {})", guess.getGuesser(), BinaryByteUnit.format(guess.estimate()));
    StringStore result = guess.getType();
    // wrap in prefix suffix
    if (!Strings.isNullOrEmpty(prefix) || !Strings.isNullOrEmpty(suffix)) {
        result = new StringTypePrefixSuffix(result, prefix, suffix);
    }
    return result;
}