From 36af320d43c726d9bf71eb871737bdd647ff60ef Mon Sep 17 00:00:00 2001
From: Sebastian Koslowski <koslowski@kit.edu>
Date: Fri, 20 Nov 2015 17:39:59 +0100
Subject: grc-refactor: clean-up grc directory
---
grc/python/base/FlowGraph.py | 482 -------------------------------------------
1 file changed, 482 deletions(-)
delete mode 100644 grc/python/base/FlowGraph.py
(limited to 'grc/python/base/FlowGraph.py')
diff --git a/grc/python/base/FlowGraph.py b/grc/python/base/FlowGraph.py
deleted file mode 100644
index 42faab6a16..0000000000
--- a/grc/python/base/FlowGraph.py
+++ /dev/null
@@ -1,482 +0,0 @@
-"""
-Copyright 2008-2011 Free Software Foundation, Inc.
-This file is part of GNU Radio
-
-GNU Radio Companion is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License
-as published by the Free Software Foundation; either version 2
-of the License, or (at your option) any later version.
-
-GNU Radio Companion is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
-"""
-
-import time
-from operator import methodcaller
-from itertools import ifilter
-
-from grc.gui import Messages
-
-from . import odict
-from .Element import Element
-from .Constants import FLOW_GRAPH_FILE_FORMAT_VERSION
-
-
-class FlowGraph(Element):
-
- def __init__(self, platform):
- """
- Make a flow graph from the arguments.
-
- Args:
- platform: a platforms with blocks and contrcutors
-
- Returns:
- the flow graph object
- """
- #initialize
- Element.__init__(self, platform)
- self._elements = []
- self._timestamp = time.ctime()
- #inital blank import
- self.import_data()
-
- def _get_unique_id(self, base_id=''):
- """
- Get a unique id starting with the base id.
-
- Args:
- base_id: the id starts with this and appends a count
-
- Returns:
- a unique id
- """
- index = 0
- while True:
- id = '%s_%d' % (base_id, index)
- index += 1
- #make sure that the id is not used by another block
- if not filter(lambda b: b.get_id() == id, self.get_blocks()): return id
-
- def __str__(self):
- return 'FlowGraph - %s(%s)' % (self.get_option('title'), self.get_option('id'))
-
- def get_complexity(self):
- """
- Determines the complexity of a flowgraph
- """
- dbal = 0
- block_list = self.get_blocks()
- for block in block_list:
- # Skip options block
- if block.get_key() == 'options':
- continue
-
- # Don't worry about optional sinks?
- sink_list = filter(lambda c: not c.get_optional(), block.get_sinks())
- source_list = filter(lambda c: not c.get_optional(), block.get_sources())
- sinks = float(len(sink_list))
- sources = float(len(source_list))
- base = max(min(sinks, sources), 1)
-
- # Port ratio multiplier
- if min(sinks, sources) > 0:
- multi = sinks / sources
- multi = (1 / multi) if multi > 1 else multi
- else:
- multi = 1
-
- # Connection ratio multiplier
- sink_multi = max(float(sum(map(lambda c: len(c.get_connections()), sink_list)) / max(sinks, 1.0)), 1.0)
- source_multi = max(float(sum(map(lambda c: len(c.get_connections()), source_list)) / max(sources, 1.0)), 1.0)
- dbal = dbal + (base * multi * sink_multi * source_multi)
-
- elements = float(len(self.get_elements()))
- connections = float(len(self.get_connections()))
- disabled_connections = len(filter(lambda c: not c.get_enabled(), self.get_connections()))
- blocks = float(len(block_list))
- variables = elements - blocks - connections
- enabled = float(len(self.get_enabled_blocks()))
-
- # Disabled multiplier
- if enabled > 0:
- disabled_multi = 1 / (max(1 - ((blocks - enabled) / max(blocks, 1)), 0.05))
- else:
- disabled_multi = 1
-
- # Connection multiplier (How many connections )
- if (connections - disabled_connections) > 0:
- conn_multi = 1 / (max(1 - (disabled_connections / max(connections, 1)), 0.05))
- else:
- conn_multi = 1
-
- final = round(max((dbal - 1) * disabled_multi * conn_multi * connections, 0.0) / 1000000, 6)
- return final
-
- def rewrite(self):
- def refactor_bus_structure():
-
- for block in self.get_blocks():
- for direc in ['source', 'sink']:
- if direc == 'source':
- get_p = block.get_sources;
- get_p_gui = block.get_sources_gui;
- bus_structure = block.form_bus_structure('source');
- else:
- get_p = block.get_sinks;
- get_p_gui = block.get_sinks_gui
- bus_structure = block.form_bus_structure('sink');
-
- if 'bus' in map(lambda a: a.get_type(), get_p_gui()):
- if len(get_p_gui()) > len(bus_structure):
- times = range(len(bus_structure), len(get_p_gui()));
- for i in times:
- for connect in get_p_gui()[-1].get_connections():
- block.get_parent().remove_element(connect);
- get_p().remove(get_p_gui()[-1]);
- elif len(get_p_gui()) < len(bus_structure):
- n = {'name':'bus','type':'bus'};
- if True in map(lambda a: isinstance(a.get_nports(), int), get_p()):
- n['nports'] = str(1);
-
- times = range(len(get_p_gui()), len(bus_structure));
-
- for i in times:
- n['key'] = str(len(get_p()));
- n = odict(n);
- port = block.get_parent().get_parent().Port(block=block, n=n, dir=direc);
- get_p().append(port);
-
- for child in self.get_children(): child.rewrite()
- refactor_bus_structure()
-
- def get_option(self, key):
- """
- Get the option for a given key.
- The option comes from the special options block.
-
- Args:
- key: the param key for the options block
-
- Returns:
- the value held by that param
- """
- return self._options_block.get_param(key).get_evaluated()
-
- def is_flow_graph(self): return True
-
- ##############################################
- ## Access Elements
- ##############################################
- def get_block(self, id):
- for block in self.iter_blocks():
- if block.get_id() == id:
- return block
- raise KeyError('No block with ID {0!r}'.format(id))
-
- def iter_blocks(self):
- return ifilter(methodcaller('is_block'), self.get_elements())
-
- def get_blocks(self):
- return list(self.iter_blocks())
-
- def iter_connections(self):
- return ifilter(methodcaller('is_connection'), self.get_elements())
-
- def get_connections(self):
- return list(self.iter_connections())
-
- def get_elements(self):
- """
- Get a list of all the elements.
- Always ensure that the options block is in the list (only once).
-
- Returns:
- the element list
- """
- options_block_count = self._elements.count(self._options_block)
- if not options_block_count:
- self._elements.append(self._options_block)
- for i in range(options_block_count-1):
- self._elements.remove(self._options_block)
- return self._elements
-
- get_children = get_elements
-
- def iter_enabled_blocks(self):
- """
- Get an iterator of all blocks that are enabled and not bypassed.
- """
- return ifilter(methodcaller('get_enabled'), self.iter_blocks())
-
- def get_enabled_blocks(self):
- """
- Get a list of all blocks that are enabled and not bypassed.
-
- Returns:
- a list of blocks
- """
- return list(self.iter_enabled_blocks())
-
- def get_bypassed_blocks(self):
- """
- Get a list of all blocks that are bypassed.
-
- Returns:
- a list of blocks
- """
- return filter(methodcaller('get_bypassed'), self.iter_blocks())
-
- def get_enabled_connections(self):
- """
- Get a list of all connections that are enabled.
-
- Returns:
- a list of connections
- """
- return filter(methodcaller('get_enabled'), self.get_connections())
-
- def get_new_block(self, key):
- """
- Get a new block of the specified key.
- Add the block to the list of elements.
-
- Args:
- key: the block key
-
- Returns:
- the new block or None if not found
- """
- if key not in self.get_parent().get_block_keys(): return None
- block = self.get_parent().get_new_block(self, key)
- self.get_elements().append(block);
- if block._bussify_sink:
- block.bussify({'name':'bus','type':'bus'}, 'sink')
- if block._bussify_source:
- block.bussify({'name':'bus','type':'bus'}, 'source')
- return block;
-
- def connect(self, porta, portb):
- """
- Create a connection between porta and portb.
-
- Args:
- porta: a port
- portb: another port
- @throw Exception bad connection
-
- Returns:
- the new connection
- """
- connection = self.get_parent().Connection(flow_graph=self, porta=porta, portb=portb)
- self.get_elements().append(connection)
- return connection
-
- def remove_element(self, element):
- """
- Remove the element from the list of elements.
- If the element is a port, remove the whole block.
- If the element is a block, remove its connections.
- If the element is a connection, just remove the connection.
- """
- if element not in self.get_elements(): return
- #found a port, set to parent signal block
- if element.is_port():
- element = element.get_parent()
- #remove block, remove all involved connections
- if element.is_block():
- for port in element.get_ports():
- map(self.remove_element, port.get_connections())
- if element.is_connection():
- if element.is_bus():
- cons_list = []
- for i in map(lambda a: a.get_connections(), element.get_source().get_associated_ports()):
- cons_list.extend(i);
- map(self.remove_element, cons_list);
- self.get_elements().remove(element)
-
- def evaluate(self, expr):
- """
- Evaluate the expression.
-
- Args:
- expr: the string expression
- @throw NotImplementedError
- """
- raise NotImplementedError
-
- ##############################################
- ## Import/Export Methods
- ##############################################
- def export_data(self):
- """
- Export this flow graph to nested data.
- Export all block and connection data.
-
- Returns:
- a nested data odict
- """
- # sort blocks and connections for nicer diffs
- blocks = sorted(self.iter_blocks(), key=lambda b: (
- b.get_key() != 'options', # options to the front
- not b.get_key().startswith('variable'), # then vars
- str(b)
- ))
- connections = sorted(self.get_connections(), key=str)
- n = odict()
- n['timestamp'] = self._timestamp
- n['block'] = [b.export_data() for b in blocks]
- n['connection'] = [c.export_data() for c in connections]
- instructions = odict({
- 'created': self.get_parent().get_version_short(),
- 'format': FLOW_GRAPH_FILE_FORMAT_VERSION,
- })
- return odict({'flow_graph': n, '_instructions': instructions})
-
- def import_data(self, n=None):
- """
- Import blocks and connections into this flow graph.
- Clear this flowgraph of all previous blocks and connections.
- Any blocks or connections in error will be ignored.
-
- Args:
- n: the nested data odict
- """
- errors = False
- self._elements = list() # remove previous elements
- # set file format
- try:
- instructions = n.find('_instructions') or {}
- file_format = int(instructions.get('format', '0')) or _guess_file_format_1(n)
- except:
- file_format = 0
-
- fg_n = n and n.find('flow_graph') or odict() # use blank data if none provided
- self._timestamp = fg_n.find('timestamp') or time.ctime()
-
- # build the blocks
- self._options_block = self.get_parent().get_new_block(self, 'options')
- for block_n in fg_n.findall('block'):
- key = block_n.find('key')
- block = self._options_block if key == 'options' else self.get_new_block(key)
-
- if not block: # looks like this block key cannot be found
- # create a dummy block instead
- block = self.get_new_block('dummy_block')
- # Ugly ugly ugly
- _initialize_dummy_block(block, block_n)
- Messages.send_error_msg_load('Block key "%s" not found' % key)
-
- block.import_data(block_n)
-
- # build the connections
- def verify_and_get_port(key, block, dir):
- ports = block.get_sinks() if dir == 'sink' else block.get_sources()
- for port in ports:
- if key == port.get_key():
- break
- if not key.isdigit() and port.get_type() == '' and key == port.get_name():
- break
- else:
- if block.is_dummy_block():
- port = _dummy_block_add_port(block, key, dir)
- else:
- raise LookupError('%s key %r not in %s block keys' % (dir, key, dir))
- return port
-
- for connection_n in fg_n.findall('connection'):
- # get the block ids and port keys
- source_block_id = connection_n.find('source_block_id')
- sink_block_id = connection_n.find('sink_block_id')
- source_key = connection_n.find('source_key')
- sink_key = connection_n.find('sink_key')
- try:
- source_block = self.get_block(source_block_id)
- sink_block = self.get_block(sink_block_id)
-
- # fix old, numeric message ports keys
- if file_format < 1:
- source_key, sink_key = _update_old_message_port_keys(
- source_key, sink_key, source_block, sink_block)
-
- # build the connection
- source_port = verify_and_get_port(source_key, source_block, 'source')
- sink_port = verify_and_get_port(sink_key, sink_block, 'sink')
- self.connect(source_port, sink_port)
- except LookupError as e:
- Messages.send_error_load(
- 'Connection between %s(%s) and %s(%s) could not be made.\n\t%s' % (
- source_block_id, source_key, sink_block_id, sink_key, e))
- errors = True
-
- self.rewrite() # global rewrite
- return errors
-
-
-def _update_old_message_port_keys(source_key, sink_key, source_block, sink_block):
- """Backward compatibility for message port keys
-
- Message ports use their names as key (like in the 'connect' method).
- Flowgraph files from former versions still have numeric keys stored for
- message connections. These have to be replaced by the name of the
- respective port. The correct message port is deduced from the integer
- value of the key (assuming the order has not changed).
-
- The connection ends are updated only if both ends translate into a
- message port.
- """
- try:
- # get ports using the "old way" (assuming liner indexed keys)
- source_port = source_block.get_sources()[int(source_key)]
- sink_port = sink_block.get_sinks()[int(sink_key)]
- if source_port.get_type() == "message" and sink_port.get_type() == "message":
- source_key, sink_key = source_port.get_key(), sink_port.get_key()
- except (ValueError, IndexError):
- pass
- return source_key, sink_key # do nothing
-
-
-def _guess_file_format_1(n):
- """Try to guess the file format for flow-graph files without version tag"""
- try:
- has_non_numeric_message_keys = any(not (
- connection_n.find('source_key').isdigit() and
- connection_n.find('sink_key').isdigit()
- ) for connection_n in n.find('flow_graph').findall('connection'))
- if has_non_numeric_message_keys:
- return 1
- except:
- pass
- return 0
-
-
-def _initialize_dummy_block(block, block_n):
- """This is so ugly... dummy-fy a block
-
- Modify block object to get the behaviour for a missing block
- """
- block._key = block_n.find('key')
- block.is_dummy_block = lambda: True
- block.is_valid = lambda: False
- block.get_enabled = lambda: False
- for param_n in block_n.findall('param'):
- if param_n['key'] not in block.get_param_keys():
- new_param_n = odict({'key': param_n['key'], 'name': param_n['key'], 'type': 'string'})
- block.get_params().append(block.get_parent().get_parent().Param(block=block, n=new_param_n))
-
-
-def _dummy_block_add_port(block, key, dir):
- """This is so ugly... Add a port to a dummy-field block"""
- port_n = odict({'name': '?', 'key': key, 'type': ''})
- port = block.get_parent().get_parent().Port(block=block, n=port_n, dir=dir)
- if port.is_source():
- block.get_sources().append(port)
- else:
- block.get_sinks().append(port)
- return port
--
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