# 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 *
                if thread.isAlive():
                    pass
                    # self.logger.debug("thread join timed out")
                else:
                    if thread.exception:
                        self._add_thread_exception(thread)
                    else:
                        self.logger.debug("thread joined")
                    break
                if self.exceptions:
                    self.logger.info("node exception occured, trying to kill threads")
                    self.kill_threads()

        if self.exceptions:
            self.logger.info("run finished with exception")
            # Raising only first exception found
            raise self.exceptions[0]
        else:
            self.logger.info("run finished sucessfully")

    def _add_thread_exception(self, thread):
        """Create a StreamRuntimeError exception object and fill attributes with all necessary
        values.
        """
        node = thread.node
        exception = StreamRuntimeError(node=node, exception=thread.exception)

        exception.traceback = thread.traceback
        exception.inputs = [pipe.fields for pipe in node.inputs]


# 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 *

                if thread.isAlive():
                    pass
                    # self.logger.debug("thread join timed out")
                else:
                    if thread.exception:
                        self._add_thread_exception(thread)
                    else:
                        self.logger.debug("thread joined")
                    break
                if self.exceptions:
                    self.logger.info("node exception occured, trying to kill threads")
                    self.kill_threads()

        if self.exceptions:
            self.logger.info("run finished with exception")
            # Raising only first exception found
            raise self.exceptions[0]
        else:
            self.logger.info("run finished sucessfully")

    def _add_thread_exception(self, thread):
        """Create a StreamRuntimeError exception object and fill attributes with all necessary
        values.
        """
        node = thread.node
        exception = StreamRuntimeError(node=node, exception=thread.exception)

        exception.traceback = thread.traceback
        exception.inputs = [pipe.fields for pipe in node.inputs]


        if not isinstance(node, TargetNode):