Examples with Record com.tvd12.dahlia.core.entity.Record used on opensource projects

Example 11 with Record

use of com.tvd12.dahlia.core.entity.Record in project dahlia by youngmonkeys.

the class CommandSaveHandler method handle.

@Override
public Object handle(CommandSave command) {
    int collectionId = command.getCollectionId();
    EzyArray data = command.getData();
    Collection collection = databases.getCollection(collectionId);
    CollectionSetting setting = collection.getSetting();
    FieldSetting sId = setting.getId();
    Map<String, FieldSetting> sFields = setting.getFields();
    long dataSize = collection.getDataSize();
    CollectionStorage collectionStorage = storage.getCollectionStorage(collectionId);
    EzyArray answerItems = EzyEntityFactory.newArray();
    synchronized (collection) {
        for (int i = 0; i < data.size(); ++i) {
            EzyObject answerItem = EzyEntityFactory.newObject();
            EzyObject item = data.get(i);
            Comparable id = item.get(Constants.FIELD_ID);
            if (id != null) {
                Record existed = collection.findById(id);
                if (existed != null)
                    answerItem.put(Constants.RESULT_FIELD_EXISTED, true);
            } else {
                while (true) {
                    id = UUID.randomUUID();
                    Record existed = collection.findById(id);
                    if (existed == null)
                        break;
                }
            }
            Record record = new Record(id, dataSize);
            collection.insert(record);
            collection.increaseDataSize();
            collectionStorage.storeRecord(record, sId, sFields, item);
            answerItem.put(Constants.FIELD_ID, id);
            answerItems.add(id);
        }
    }
    return answerItems;
}

Example 12 with Record

use of com.tvd12.dahlia.core.entity.Record in project dahlia by youngmonkeys.

the class CommandUpdateHandler method handle.

@Override
public Object handle(CommandUpdate command) {
    int collectionId = command.getCollectionId();
    Collection collection = databases.getCollection(collectionId);
    if (collection == null)
        throw new CollectionNotFoundException(collectionId);
    EzyObject query = command.getQuery();
    Predicate<EzyObject> predicate = queryToPredicate.toPredicate(query);
    CollectionSetting setting = collection.getSetting();
    CollectionStorage collectionStorage = storage.getCollectionStorage(collectionId);
    FieldSetting sId = setting.getId();
    Map<String, FieldSetting> sFields = setting.getFields();
    EzyObject update = command.getUpdate();
    List<EzyPair<Record, EzyObject>> updateItems = new ArrayList<>();
    synchronized (collection) {
        collection.forEach(new RecordConsumer() {

            @Override
            public void accept(Record r) {
                EzyObject value = collectionStorage.readRecord(r, sId, sFields);
                boolean accepted = predicate.test(value);
                if (accepted)
                    updateItems.add(new EzyPair<>(r, value));
            }
        });
        for (EzyPair<Record, EzyObject> pair : updateItems) {
            Record record = pair.getKey();
            EzyObject updateItem = pair.getValue();
            updateItem(updateItem, update);
            collectionStorage.storeRecord(record, sId, sFields, updateItem);
        }
    }
    EzyArray answer = EzyEntityFactory.newArray();
    for (EzyPair<Record, EzyObject> pair : updateItems) {
        EzyObject answerItem = EzyEntityFactory.newObject();
        EzyObject updateItem = pair.getValue();
        answerItem.put(Constants.FIELD_ID, updateItem.get(Constants.FIELD_ID));
    }
    return answer;
}

Example 13 with Record

use of com.tvd12.dahlia.core.entity.Record in project dahlia by youngmonkeys.

the class DahliaCoreLoader method loadCollection.

protected void loadCollection(Collection collection, CollectionStorage storage) {
    CollectionSetting setting = collection.getSetting();
    FieldSetting idSetting = setting.getId();
    long recordPosition = collection.getDataSize();
    while (storage.hasMoreRecords(recordPosition)) {
        Record record = storage.readRecord(recordPosition, idSetting);
        if (record != null)
            collection.insert(record);
        recordPosition = collection.increaseDataSize();
    }
}

Example 14 with Record

use of com.tvd12.dahlia.core.entity.Record in project dahlia by youngmonkeys.

the class RecordReader method read.

public Record read(long position, FieldSetting idSetting, boolean ignoreDeleted) {
    try {
        file.seek(position);
        byte header = file.readByte();
        boolean deleted = (header & (1 << 0)) == 0;
        if (ignoreDeleted && deleted)
            return null;
        Object id = fieldReaders.read(file, idSetting);
        Record record = new Record((Comparable) id, position);
        record.setAlive(!deleted);
        return record;
    } catch (IOException e) {
        throw new IllegalStateException(e);
    }
}

Example 15 with Record

use of com.tvd12.dahlia.core.entity.Record in project dahlia by youngmonkeys.

the class RecordReader method read.

public EzyObject read(Record record, FieldSetting idSetting, Map<String, FieldSetting> settings) {
    try {
        file.seek(record.getPosition());
        // header
        file.readByte();
        EzyObject output = EzyEntityFactory.newObject();
        Object id = fieldReaders.read(file, idSetting);
        output.put(FIELD_ID, id);
        fieldReaders.read(file, settings, output);
        return output;
    } catch (IOException e) {
        throw new IllegalStateException(e);
    }
}