# 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 *
        return self._closed

    def done_sending(self):
        """Close pipe from sender side"""
        self._flush(True)

    def done_receiving(self):
        """Close pipe from either side"""
        self._note("C not_empty acq? r")
        self.not_empty.acquire()
        self._note("C closing")
        self._closed = True
        self._note("C notif close")
        self.not_full.notify()
        self.not_empty.release()

        self._note("C not_empty rel! r")

class Stream(Graph):
    """Data processing stream"""
    def __init__(self, nodes=None, connections=None):
        """Creates a data stream.

        :Parameters:
            * `nodes` - dictionary with keys as node names and values as nodes
            * `connections` - list of two-item tuples. Each tuple contains source and target node
              or source and target node name.
            * `stream` - another stream or
        """
        super(Stream, self).__init__(nodes, connections)

# 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 *

        return self._closed

    def done_sending(self):
        """Close pipe from sender side"""
        self._flush(True)

    def done_receiving(self):
        """Close pipe from either side"""
        self._note("C not_empty acq? r")
        self.not_empty.acquire()
        self._note("C closing")
        self._closed = True
        self._note("C notif close")
        self.not_full.notify()
        self.not_empty.release()

        self._note("C not_empty rel! r")

class Stream(Graph):
    """Data processing stream"""
    def __init__(self, nodes=None, connections=None):
        """Creates a data stream.

        :Parameters:
            * `nodes` - dictionary with keys as node names and values as nodes
            * `connections` - list of two-item tuples. Each tuple contains source and target node
              or source and target node name.
            * `stream` - another stream or
        """
        super(Stream, self).__init__(nodes, connections)

        self.logger = get_logger()