Python storages.JSONStorage方法代碼示例

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def create_ports(tmpdir, monkeypatch):
    def _create_ports(ports):
        def get_db():
            tmp_db = tmpdir.join("db.json")
            db = TinyDB(
                str(tmp_db),
                storage=CachingMiddleware(JSONStorage)
            )

            for port in ports:
                db.insert({
                    'name': port[0],
                    'port': port[1],
                    "description": port[2],
                    "protocol": port[3]
                })
            return db

        return monkeypatch.setattr(whatportis.db, "get_database", get_db)
    return  _create_ports 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def __init__(self, name=None, data_dir=None, **kwargs):
        """Create a period with a TinyDB database backend, identified by 'name'.
        If 'data_dir' is given, the database storage type is JSON (the storage
        filepath is derived from the Period's name). Otherwise the data is
        stored in memory.
        Keyword args are passed to the TinyDB constructor. See the respective
        docs for detailed information.
        """

        super().__init__(name=name)

        # evaluate args/kwargs for TinyDB constructor. This overwrites the
        # 'storage' kwarg if explicitly passed
        if data_dir is None:
            args = []
            kwargs["storage"] = storages.MemoryStorage
        else:
            args = [os.path.join(data_dir, "{}.json".format(self.name))]
            kwargs["storage"] = storages.JSONStorage

        self._db = TinyDB(*args, **kwargs)
        self._create_category_cache() 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def test_serializer(tmpdir):
    path = str(tmpdir.join('db.json'))

    serializer = SerializationMiddleware(JSONStorage)
    serializer.register_serializer(DateTimeSerializer(), 'TinyDate')
    db = TinyDB(path, storage=serializer)

    date = datetime(2000, 1, 1, 12, 0, 0)

    db.insert({'date': date})
    db.insert({'int': 2})
    assert db.count(where('date') == date) == 1
    assert db.count(where('int') == 2) == 1 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def test_serializer_nondestructive(tmpdir):
    path = str(tmpdir.join('db.json'))

    serializer = SerializationMiddleware(JSONStorage)
    serializer.register_serializer(DateTimeSerializer(), 'TinyDate')
    db = TinyDB(path, storage=serializer)

    data = {'date': datetime.utcnow(), 'int': 3, 'list': []}
    data_before = dict(data)  # implicitly copy
    db.insert(data)
    assert data == data_before 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def test_serializer_recursive(tmpdir):
    path = str(tmpdir.join('db.json'))

    serializer = SerializationMiddleware(JSONStorage)
    serializer.register_serializer(DateTimeSerializer(), 'TinyDate')
    db = TinyDB(path, storage=serializer)

    date = datetime(2000, 1, 1, 12, 0, 0)
    datenow = datetime.utcnow()
    dates = [{'date': date, 'hp': 100}, {'date': datenow, 'hp': 1}]
    data = {'dates': dates, 'int': 10}
    db.insert(data)
    db.insert({'int': 2})
    assert db.count(where('dates').any(where('date') == date)) == 1
    assert db.count(where('int') == 2) == 1 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def __init__(self):
        """Adds self to messages and event's `data` field.
        Through this instance you can access TinyDB instance (data["tinydbproxy"].tinydb).
        This plugin should be included first!
        """

        super().__init__()

        self.order = (-95, 95)

        self.tinydb = TinyDB(path=self.get_path("tinydb_database.json"), storage=CachingMiddleware(JSONStorage)) 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def get_database():
    return TinyDB(path, storage=CachingMiddleware(JSONStorage)) 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def new(cls, script, commit, params, campaign_dir, overwrite=False):
        """
        Initialize a new class instance with a set configuration and filename.

        The created database has the same name of the campaign directory.

        Args:
            script (str): the ns-3 name of the script that will be used in this
                campaign;
            commit (str): the commit of the ns-3 installation that is used to
                run the simulations.
            params (list): a list of the parameters that can be used on the
                script.
            campaign_dir (str): The path of the file where to save the DB.
            overwrite (bool): Whether or not existing directories should be
                overwritten.

        """

        # We only accept absolute paths
        if not Path(campaign_dir).is_absolute():
            raise ValueError("Path is not absolute")

        # Make sure the directory does not exist already
        if Path(campaign_dir).exists() and not overwrite:
            raise FileExistsError("The specified directory already exists")
        elif Path(campaign_dir).exists() and overwrite:
            # Verify we are not deleting files belonging to the user
            campaign_dir_name = os.path.basename(campaign_dir)
            folder_contents = set(os.listdir(campaign_dir))
            allowed_files = set(
                ['data', '%s.json' % campaign_dir_name] +
                # Allow hidden files (like .DS_STORE in macos)
                [os.path.basename(os.path.normpath(f)) for f in
                 glob.glob(os.path.join(campaign_dir, ".*"))])

            if(not folder_contents.issubset(allowed_files)):
                raise ValueError("The specified directory cannot be overwritten"
                                 " because it contains user files.")
            # This operation destroys data.
            shutil.rmtree(campaign_dir)

        # Create the directory and database file in it
        # The indent and separators ensure the database is human readable.
        os.makedirs(campaign_dir)
        tinydb = TinyDB(os.path.join(campaign_dir, "%s.json" %
                                     os.path.basename(campaign_dir)),
                        storage=CachingMiddleware(JSONStorage))

        # Save the configuration in the database
        config = {
            'script': script,
            'commit': commit,
            'params': sorted(params)
        }

        tinydb.table('config').insert(config)

        tinydb.storage.flush()

        return cls(tinydb, campaign_dir) 

# 需要導入模塊: from tinydb import storages [as 別名]
# 或者: from tinydb.storages import JSONStorage [as 別名]
def load(cls, campaign_dir):
        """
        Initialize from an existing database.

        It is assumed that the database json file has the same name as its
        containing folder.

        Args:
            campaign_dir (str): The path to the campaign directory.
        """

        # We only accept absolute paths
        if not Path(campaign_dir).is_absolute():
            raise ValueError("Path is not absolute")

        # Verify file exists
        if not Path(campaign_dir).exists():
            raise ValueError("Directory does not exist")

        # Extract filename from campaign dir
        filename = "%s.json" % os.path.split(campaign_dir)[1]
        filepath = os.path.join(campaign_dir, filename)

        try:
            # Read TinyDB instance from file
            tinydb = TinyDB(filepath,
                            storage=CachingMiddleware(JSONStorage))

            # Make sure the configuration is a valid dictionary
            assert set(
                tinydb.table('config').all()[0].keys()) == set(['script',
                                                                'params',
                                                                'commit'])
        except:
            # Remove the database instance created by tinydb
            os.remove(filepath)
            raise ValueError("Specified campaign directory seems corrupt")

        return cls(tinydb, campaign_dir)

    ###################
    # Database access #
    ###################