# Path: brewery/nodes/base.py
# def node_dictionary():
#     """Return a dictionary containing node name as key and node class as
#     value. This will be depreciated soon in favour of
#     :func:`node_catalogue()`"""
# 
#     classes = node_subclasses(Node)
#     dictionary = {}
# 
#     for c in classes:
#         try:
#             name = c.identifier()
#             dictionary[name] = c
#         except AttributeError:
#             # If node does not provide identifier, we consider it to be
#             # private or abstract class
#             pass
# 
#     return dictionary
# 
# class TargetNode(Node):
#     """Abstract class for all target nodes
# 
#     .. abstract_node
# 
#     """
#     def __init__(self):
#         super(TargetNode, self).__init__()
#         self.fields = None
# 
#     @property
#     def output_fields(self):
#         raise RuntimeError("Output fields asked from a target object.")
# 
#     def add_output(self, pipe):
#         raise RuntimeError("Should not add output pipe to a target node")
# 
# class NodeFinished(Exception):
#     """Exception raised when node has no active outputs - each output node signalised that it
#     requires no more data."""
#     pass
# 
# Path: brewery/utils.py
# def get_logger():
#     """Get brewery default logger"""
#     global logger
#     
#     if logger:
#         return logger
#     else:
#         return create_logger()


import threading
import sys
from brewery.nodes.base import node_dictionary, TargetNode, NodeFinished
from brewery.utils import get_logger
from brewery.nodes import *
from brewery.common import *
from .graph import *
                self._closed = close
                self._note("P _not_empty notify >")
                self.not_empty.notify()

        finally:
            self._note("P _not_full rel!")
            self.not_full.release()

    def rows(self):
        """Get data object from pipe. If there is no buffer ready, wait until source object sends
        some data."""

        done_sending = False
        while not done_sending:
            self._note("C _not_empty acq?")
            self.not_empty.acquire()
            try:
                self._note("C _not_empty wait ...")
                while not self._ready_buffer and not self._closed:
                    self.not_empty.wait()
                self._note("C _not_empty got <")

                if self._ready_buffer:
                    rows = self._ready_buffer
                    self._ready_buffer = None
                    self._note("C _not_full notify >")
                    self.not_full.notify()

                    for row in rows:
                        yield row

# Path: brewery/nodes/base.py
# def node_dictionary():
#     """Return a dictionary containing node name as key and node class as
#     value. This will be depreciated soon in favour of
#     :func:`node_catalogue()`"""
# 
#     classes = node_subclasses(Node)
#     dictionary = {}
# 
#     for c in classes:
#         try:
#             name = c.identifier()
#             dictionary[name] = c
#         except AttributeError:
#             # If node does not provide identifier, we consider it to be
#             # private or abstract class
#             pass
# 
#     return dictionary
# 
# class TargetNode(Node):
#     """Abstract class for all target nodes
# 
#     .. abstract_node
# 
#     """
#     def __init__(self):
#         super(TargetNode, self).__init__()
#         self.fields = None
# 
#     @property
#     def output_fields(self):
#         raise RuntimeError("Output fields asked from a target object.")
# 
#     def add_output(self, pipe):
#         raise RuntimeError("Should not add output pipe to a target node")
# 
# class NodeFinished(Exception):
#     """Exception raised when node has no active outputs - each output node signalised that it
#     requires no more data."""
#     pass
# 
# Path: brewery/utils.py
# def get_logger():
#     """Get brewery default logger"""
#     global logger
#     
#     if logger:
#         return logger
#     else:
#         return create_logger()


# Path: brewery/streams.py
import threading
import sys
from brewery.nodes.base import node_dictionary, TargetNode, NodeFinished
from brewery.utils import get_logger
from brewery.nodes import *
from brewery.common import *
from .graph import *

                self._closed = close
                self._note("P _not_empty notify >")
                self.not_empty.notify()

        finally:
            self._note("P _not_full rel!")
            self.not_full.release()

    def rows(self):
        """Get data object from pipe. If there is no buffer ready, wait until source object sends
        some data."""

        done_sending = False
        while not done_sending:
            self._note("C _not_empty acq?")
            self.not_empty.acquire()
            try:
                self._note("C _not_empty wait ...")
                while not self._ready_buffer and not self._closed:
                    self.not_empty.wait()
                self._note("C _not_empty got <")

                if self._ready_buffer:
                    rows = self._ready_buffer
                    self._ready_buffer = None
                    self._note("C _not_full notify >")
                    self.not_full.notify()

                    for row in rows:
                        yield row

                else: