Python get_changefeed Examples

Example #1

File: 7088_test_changefeed.py Project: swayamsidha/bigchaindb

def test_changefeed_delete(mock_cursor_next, mock_changefeed_data):
    from bigchaindb.backend import get_changefeed, connect
    from bigchaindb.backend.changefeed import ChangeFeed

    conn = connect()
    mock_cursor_next.side_effect = [mock.DEFAULT] + mock_changefeed_data

    outpipe = Pipe()
    changefeed = get_changefeed(conn, 'backlog', ChangeFeed.DELETE)
    changefeed.outqueue = outpipe
    changefeed.run_forever()

    assert outpipe.get()['msg'] == 'seems like we have a delete here'
    assert outpipe.qsize() == 0

Example #2

File: 7088_test_changefeed.py Project: swayamsidha/bigchaindb

def test_changefeed_prefeed(mock_cursor_next, mock_changefeed_data):
    from bigchaindb.backend import get_changefeed, connect
    from bigchaindb.backend.changefeed import ChangeFeed

    conn = connect()
    mock_cursor_next.side_effect = [mock.DEFAULT] + mock_changefeed_data

    outpipe = Pipe()
    changefeed = get_changefeed(conn,
                                'backlog',
                                ChangeFeed.INSERT,
                                prefeed=[1, 2, 3])
    changefeed.outqueue = outpipe
    changefeed.run_forever()

    assert outpipe.qsize() == 4

Example #3

File: 7088_test_changefeed.py Project: swayamsidha/bigchaindb

def test_changefeed_insert(mock_cursor_next, mock_changefeed_data):
    from bigchaindb.backend import get_changefeed, connect
    from bigchaindb.backend.changefeed import ChangeFeed

    # setup connection and mocks
    conn = connect()
    # mock the `next` method of the cursor to return the mocked data
    mock_cursor_next.side_effect = [mock.DEFAULT] + mock_changefeed_data

    outpipe = Pipe()
    changefeed = get_changefeed(conn, 'backlog', ChangeFeed.INSERT)
    changefeed.outqueue = outpipe
    changefeed.run_forever()

    assert outpipe.get()['msg'] == 'seems like we have an insert here'
    assert outpipe.qsize() == 0

Example #4

File: 7088_test_changefeed.py Project: swayamsidha/bigchaindb

def test_changefeed_update(mock_cursor_next, mock_cursor_find_one,
                           mock_changefeed_data):
    from bigchaindb.backend import get_changefeed, connect
    from bigchaindb.backend.changefeed import ChangeFeed

    conn = connect()
    mock_cursor_next.side_effect = [mock.DEFAULT] + mock_changefeed_data
    mock_cursor_find_one.return_value = mock_changefeed_data[2]['o']

    outpipe = Pipe()
    changefeed = get_changefeed(conn, 'backlog', ChangeFeed.UPDATE)
    changefeed.outqueue = outpipe
    changefeed.run_forever()

    assert outpipe.get()['msg'] == 'seems like we have an update here'
    assert outpipe.qsize() == 0
    assert mock_cursor_find_one.called_once_with(
        {'_id': mock_changefeed_data[2]['o']}, {'_id': False})

Example #5

File: 7088_test_changefeed.py Project: swayamsidha/bigchaindb

def test_changefeed_multiple_operations(mock_cursor_next, mock_cursor_find_one,
                                        mock_changefeed_data):
    from bigchaindb.backend import get_changefeed, connect
    from bigchaindb.backend.changefeed import ChangeFeed

    conn = connect()
    mock_cursor_next.side_effect = [mock.DEFAULT] + mock_changefeed_data
    mock_cursor_find_one.return_value = mock_changefeed_data[2]['o']

    outpipe = Pipe()
    changefeed = get_changefeed(conn, 'backlog',
                                ChangeFeed.INSERT | ChangeFeed.UPDATE)
    changefeed.outqueue = outpipe
    changefeed.run_forever()

    assert outpipe.get()['msg'] == 'seems like we have an insert here'
    assert outpipe.get()['msg'] == 'seems like we have an update here'
    assert outpipe.qsize() == 0

Example #6

def get_changefeed():
    connection = backend.connect(**bigchaindb.config['database'])
    return backend.get_changefeed(connection, 'votes', ChangeFeed.INSERT)

Example #7

File: election.py Project: sbellem/bigchaindb

def get_changefeed():
    connection = backend.connect(**bigchaindb.config['database'])
    return backend.get_changefeed(connection, 'votes', ChangeFeed.INSERT)

Example #8

File: vote.py Project: sbellem/bigchaindb

def get_changefeed():
    connection = backend.connect(**bigchaindb.config['database'])
    return backend.get_changefeed(connection, 'bigchain', ChangeFeed.INSERT,
                                  prefeed=initial())

Example #9

def get_changefeed():
    connection = backend.connect(**bigchaindb.config['database'])
    return backend.get_changefeed(connection, 'backlog',
                                  ChangeFeed.INSERT | ChangeFeed.UPDATE)

Example #10

def get_changefeed():
    connection = backend.connect(**bigchaindb.config['database'])
    return backend.get_changefeed(connection,
                                  'bigchain',
                                  ChangeFeed.INSERT,
                                  prefeed=initial())

Example #11

File: block.py Project: cgwyx/bigchaindb

def get_changefeed():
    connection = backend.connect(**bigchaindb.config['database'])
    return backend.get_changefeed(connection, 'backlog',
                                  ChangeFeed.INSERT | ChangeFeed.UPDATE)