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Source code for galaxy.visualization.plugins.utils

"""
Utilities for visualization plugins.
"""


# =============================================================================
[docs]class OpenObject( dict ): # note: not a Bunch # TODO: move to util.data_structures """ A dict that allows assignment and attribute retrieval using the dot operator. If an attribute isn't contained in the dict `None` is returned (no KeyError). JSON-serializable. """ def __getitem__( self, key ): if key not in self: return None return super( OpenObject, self ).__getitem__( key ) def __getattr__( self, key ): return self.__getitem__( key )
# ------------------------------------------------------------------- misc # TODO: move to utils?
[docs]def getattr_recursive( item, attr_key, *args ): """ Allows dot member notation in attribute name when getting an item's attribute. NOTE: also searches dictionaries """ using_default = len( args ) >= 1 default = args[0] if using_default else None for attr_key in attr_key.split( '.' ): try: if isinstance( item, dict ): item = item.__getitem__( attr_key ) else: item = getattr( item, attr_key ) except ( KeyError, AttributeError ): if using_default: return default raise return item
[docs]def hasattr_recursive( item, attr_key ): """ Allows dot member notation in attribute name when getting an item's attribute. NOTE: also searches dictionaries """ if '.' in attr_key: attr_key, last_key = attr_key.rsplit( '.', 1 ) item = getattr_recursive( item, attr_key, None ) if item is None: return False attr_key = last_key try: if isinstance( item, dict ): return item.__contains__( attr_key ) else: return hasattr( item, attr_key ) except ( KeyError, AttributeError ): return False return True