Source code for node_debug_io

# Copyright (c) 2017 System Engineering Software Society
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from __future__ import (print_function, division, unicode_literals,
                        absolute_import)
import os

from sympathy.api import node as synode
from sympathy.api.nodeconfig import Port, Ports, Tag, Tags
from sympathy.api.exceptions import SyDataError, sywarn

from sympathy.utils import filebase
import sympathy


def filename_str(filename_syd):
    res = filename_syd.decode_path()

    if not res:
        raise SyDataError(
            'FILE datasource must be used to select file.')
    return res


def check_type(const, data):
    dtype = data.container_type
    ctype = const.container_type

    if dtype != ctype:
        raise SyDataError(
            'Type of select file: {} does not match type constraint: {}.'
            .format(dtype, ctype))


scheme = 'hdf5'


[docs]class DebugExport(synode.Node): """ Debug Export Exports internal data structures. They will not be readable in any other Sympathy version than the one in which they were exported. Use for debugging only. """ name = 'Debug Export' description = '' icon = 'debug_export.svg' nodeid = 'org.sysess.sympathy.debug.export' author = 'Erik der Hagopian <erik.hagopian@sysess.org>' copyright = '(c) 2017 System Engineering Software Society' version = '1.0' tags = Tags(Tag.Development.Debug) inputs = Ports([ Port.Custom('<a>', 'Data', name='data'), Port.Datasource('Filename', name='filename')]) outputs = Ports([ Port.Datasource('Filename', name='filename', n=(0, 1, 0))]) def execute(self, node_context): sywarn(self.description) data = node_context.input['data'] fn = filename_str(node_context.input['filename']) with filebase.to_file( fn, scheme, data.container_type, external=True) as f: f.source(data) fns = node_context.output.group('filename') if fns: fns[0].encode_path(fn)
DebugExport.description = DebugExport.__doc__
[docs]class DebugImport(synode.Node): """ Debug Import Imports internal data structures. These must be created by Debug Export on The current Sympathy version. Use for debugging only. """ name = 'Debug Import' description = '' icon = 'debug_import.svg' nodeid = 'org.sysess.sympathy.debug.import' author = 'Erik der Hagopian <erik.hagopian@sysess.org>' copyright = '(c) 2017 System Engineering Software Society' version = '1.0' tags = Tags(Tag.Development.Debug) inputs = Ports([ Port.Datasource('Filename', name='filename'), Port.Custom('<a>', 'Type constraint', name='type', n=(1, 1, 1))]) outputs = Ports([ Port.Custom('<a>', 'Data', name='data')]) def execute(self, node_context): sywarn(self.description) data = node_context.output['data'] const = node_context.input['type'] fn = filename_str(node_context.input['filename']) if not os.path.isfile(fn): raise SyDataError('File: {} does not exist.'.format(fn)) fileinfo = filebase.fileinfo(fn, scheme) if not fileinfo.platform_version() == sympathy.__version__: raise SyDataError( 'File: {} was not created with the current Sympathy' ' version.'.format(fn)) with filebase.from_file(fn, scheme=scheme, external=False) as f: check_type(f, const) with filebase.from_file( fn, scheme, data.container_type, external=False) as f: if f.container_type != const.container_type: check_type(const) data.source(f)
DebugImport.description = DebugImport.__doc__