def parseWorkflowXML( self, xml, encoding=None ):
""" Pseudo API.
"""
dom = domParseString( xml )
root = dom.getElementsByTagName( 'dc-workflow' )[ 0 ]
workflow_id = _getNodeAttribute( root, 'workflow_id', encoding )
title = _getNodeAttribute( root, 'title', encoding )
state_variable = _getNodeAttribute( root, 'state_variable', encoding )
initial_state = _getNodeAttribute( root, 'initial_state', encoding )
states = _extractStateNodes( root, encoding )
transitions = _extractTransitionNodes( root, encoding )
variables = _extractVariableNodes( root, encoding )
worklists = _extractWorklistNodes( root, encoding )
permissions = _extractPermissionNodes( root, encoding )
scripts = _extractScriptNodes( root, encoding )
return ( workflow_id
, title
, state_variable
, initial_state
, states
, transitions
, variables
, worklists
, permissions
, scripts
)
def _extractScriptNodes( root, encoding=None ):
result = []
for s_node in root.getElementsByTagName( 'script' ):
try:
function = _getNodeAttribute( s_node, 'function' )
except ValueError:
function = ''
try:
module = _getNodeAttribute( s_node, 'module' )
except ValueError:
module = ''
info = { 'script_id' : _getNodeAttribute( s_node, 'script_id' )
, 'meta_type' : _getNodeAttribute( s_node, 'type' , encoding )
, 'function' : function
, 'module' : module
}
filename = _queryNodeAttribute( s_node, 'filename' , None, encoding )
if filename is not None:
info[ 'filename' ] = filename
result.append( info )
return result
def _extractScriptNodes(root, encoding=None):
result = []
for s_node in root.getElementsByTagName('script'):
try:
function = _getNodeAttribute(s_node, 'function')
except ValueError:
function = ''
try:
module = _getNodeAttribute(s_node, 'module')
except ValueError:
module = ''
info = {
'script_id': _getNodeAttribute(s_node, 'script_id'),
'meta_type': _getNodeAttribute(s_node, 'type', encoding),
'function': function,
'module': module
}
filename = _queryNodeAttribute(s_node, 'filename', None, encoding)
if filename is not None:
info['filename'] = filename
result.append(info)
return result
def parseWorkflowXML( self, xml, encoding=None ):
""" Pseudo API.
"""
dom = domParseString( xml )
root = dom.getElementsByTagName( 'dc-workflow' )[ 0 ]
workflow_id = _getNodeAttribute( root, 'workflow_id', encoding )
title = _getNodeAttribute( root, 'title', encoding )
state_variable = _getNodeAttribute( root, 'state_variable', encoding )
initial_state = _getNodeAttribute( root, 'initial_state', encoding )
states = _extractStateNodes( root )
transitions = _extractTransitionNodes( root )
variables = _extractVariableNodes( root )
worklists = _extractWorklistNodes( root )
permissions = _extractPermissionNodes( root )
scripts = _extractScriptNodes( root )
return ( workflow_id
, title
, state_variable
, initial_state
, states
, transitions
, variables
, worklists
, permissions
, scripts
)
def _extractAliasesNode(parent, encoding=None):
result = {}
aliases = parent.getElementsByTagName('aliases')[0]
for alias in aliases.getElementsByTagName('alias'):
alias_from = _getNodeAttribute(alias, 'from', encoding)
alias_to = _getNodeAttribute(alias, 'to', encoding)
result[alias_from] = alias_to
return result
def _extractMatchNode( parent, encoding=None ):
nodes = parent.getElementsByTagName( 'match' )
result = {}
for node in nodes:
name = _getNodeAttribute( node, 'name', encoding )
values = _getNodeAttribute( node, 'values', encoding )
result[ name ] = _SEMICOLON_LIST_SPLITTER.split( values )
return result
def _extractMatchNode(parent, encoding=None):
nodes = parent.getElementsByTagName('match')
result = {}
for node in nodes:
name = _getNodeAttribute(node, 'name', encoding)
values = _getNodeAttribute(node, 'values', encoding)
result[name] = _SEMICOLON_LIST_SPLITTER.split(values)
return result
def _extractAliasesNode(parent, encoding=None):
result = {}
aliases = parent.getElementsByTagName('aliases')[0]
for alias in aliases.getElementsByTagName('alias'):
alias_from = _getNodeAttribute(alias, 'from', encoding)
alias_to = _getNodeAttribute(alias, 'to', encoding)
result[alias_from] = alias_to
return result
def _extractActionNode( parent, encoding=None ):
nodes = parent.getElementsByTagName( 'action' )
assert len( nodes ) <= 1, nodes
if len( nodes ) < 1:
return { 'name' : '', 'url' : '', 'category' : '' }
node = nodes[ 0 ]
return { 'name' : _coalesceTextNodeChildren( node, encoding )
, 'url' : _getNodeAttribute( node, 'url', encoding )
, 'category' : _getNodeAttribute( node, 'category', encoding )
}
def _extractActionNode( parent, encoding=None ):
nodes = parent.getElementsByTagName( 'action' )
assert len( nodes ) <= 1, nodes
if len( nodes ) < 1:
return { 'name' : '', 'url' : '', 'category' : '' }
node = nodes[ 0 ]
return { 'name' : _coalesceTextNodeChildren( node, encoding )
, 'url' : _getNodeAttribute( node, 'url', encoding )
, 'category' : _getNodeAttribute( node, 'category', encoding )
}
def _extractVariableNodes( root, encoding=None ):
result = []
for v_node in root.getElementsByTagName( 'variable' ):
info = { 'variable_id' : _getNodeAttribute( v_node, 'variable_id'
, encoding )
, 'description' : _extractDescriptionNode( v_node, encoding )
, 'for_catalog' : _getNodeAttributeBoolean( v_node
, 'for_catalog'
)
, 'for_status' : _getNodeAttributeBoolean( v_node
, 'for_status'
)
, 'update_always' : _getNodeAttributeBoolean( v_node
, 'update_always'
)
, 'default' : _extractDefaultNode( v_node, encoding )
, 'guard' : _extractGuardNode( v_node, encoding )
}
result.append( info )
return result
def _extractVariableNodes( root, encoding=None ):
result = []
for v_node in root.getElementsByTagName( 'variable' ):
info = { 'variable_id' : _getNodeAttribute( v_node, 'variable_id'
, encoding )
, 'description' : _extractDescriptionNode( v_node, encoding )
, 'for_catalog' : _getNodeAttributeBoolean( v_node
, 'for_catalog'
)
, 'for_status' : _getNodeAttributeBoolean( v_node
, 'for_status'
)
, 'update_always' : _getNodeAttributeBoolean( v_node
, 'update_always'
)
, 'default' : _extractDefaultNode( v_node, encoding )
, 'guard' : _extractGuardNode( v_node, encoding )
}
result.append( info )
return result
def _extractStateNodes( root, encoding=None ):
result = []
for s_node in root.getElementsByTagName( 'state' ):
info = { 'state_id' : _getNodeAttribute( s_node, 'state_id', encoding )
, 'title' : _getNodeAttribute( s_node, 'title', encoding )
, 'description' : _extractDescriptionNode( s_node, encoding )
}
info[ 'transitions' ] = [ _getNodeAttribute( x, 'transition_id'
, encoding )
for x in s_node.getElementsByTagName(
'exit-transition' ) ]
info[ 'permissions' ] = permission_map = {}
for p_map in s_node.getElementsByTagName( 'permission-map' ):
name = _getNodeAttribute( p_map, 'name', encoding )
acquired = _getNodeAttributeBoolean( p_map, 'acquired' )
roles = [ _coalesceTextNodeChildren( x, encoding )
for x in p_map.getElementsByTagName(
'permission-role' ) ]
if not acquired:
roles = tuple( roles )
permission_map[ name ] = roles
info[ 'groups' ] = group_map = []
for g_map in s_node.getElementsByTagName( 'group-map' ):
name = _getNodeAttribute( g_map, 'name', encoding )
roles = [ _coalesceTextNodeChildren( x, encoding )
for x in g_map.getElementsByTagName(
'group-role' ) ]
group_map.append( ( name, tuple( roles ) ) )
info[ 'variables' ] = var_map = {}
for assignment in s_node.getElementsByTagName( 'assignment' ):
name = _getNodeAttribute( assignment, 'name', encoding )
type_id = _getNodeAttribute( assignment, 'type', encoding )
value = _coalesceTextNodeChildren( assignment, encoding )
var_map[ name ] = { 'name' : name
, 'type' : type_id
, 'value' : value
}
result.append( info )
return result
def _extractStateNodes(root, encoding=None):
result = []
for s_node in root.getElementsByTagName('state'):
info = {
'state_id': _getNodeAttribute(s_node, 'state_id', encoding),
'title': _getNodeAttribute(s_node, 'title', encoding),
'description': _extractDescriptionNode(s_node, encoding)
}
info['transitions'] = [
_getNodeAttribute(x, 'transition_id', encoding)
for x in s_node.getElementsByTagName('exit-transition')
]
info['permissions'] = permission_map = {}
for p_map in s_node.getElementsByTagName('permission-map'):
name = _getNodeAttribute(p_map, 'name', encoding)
acquired = _getNodeAttributeBoolean(p_map, 'acquired')
roles = [
_coalesceTextNodeChildren(x, encoding)
for x in p_map.getElementsByTagName('permission-role')
]
if not acquired:
roles = tuple(roles)
permission_map[name] = roles
info['groups'] = group_map = []
for g_map in s_node.getElementsByTagName('group-map'):
name = _getNodeAttribute(g_map, 'name', encoding)
roles = [
_coalesceTextNodeChildren(x, encoding)
for x in g_map.getElementsByTagName('group-role')
]
group_map.append((name, tuple(roles)))
info['variables'] = var_map = {}
for assignment in s_node.getElementsByTagName('assignment'):
name = _getNodeAttribute(assignment, 'name', encoding)
type_id = _getNodeAttribute(assignment, 'type', encoding)
value = _coalesceTextNodeChildren(assignment, encoding)
var_map[name] = {'name': name, 'type': type_id, 'value': value}
result.append(info)
return result
def _extractTransitionNodes(root, encoding=None):
result = []
for t_node in root.getElementsByTagName('transition'):
info = {
'transition_id': _getNodeAttribute(t_node, 'transition_id',
encoding),
'title': _getNodeAttribute(t_node, 'title', encoding),
'description': _extractDescriptionNode(t_node, encoding),
'new_state': _getNodeAttribute(t_node, 'new_state', encoding),
'trigger': _getNodeAttribute(t_node, 'trigger', encoding),
'before_script': _getNodeAttribute(t_node, 'before_script',
encoding),
'after_script': _getNodeAttribute(t_node, 'after_script',
encoding),
'action': _extractActionNode(t_node, encoding),
'guard': _extractGuardNode(t_node, encoding)
}
info['variables'] = var_map = {}
for assignment in t_node.getElementsByTagName('assignment'):
name = _getNodeAttribute(assignment, 'name', encoding)
expr = _coalesceTextNodeChildren(assignment, encoding)
var_map[name] = expr
result.append(info)
return result
def _extractTransitionNodes( root, encoding=None ):
result = []
for t_node in root.getElementsByTagName( 'transition' ):
info = { 'transition_id' : _getNodeAttribute( t_node, 'transition_id'
, encoding )
, 'title' : _getNodeAttribute( t_node, 'title', encoding )
, 'description' : _extractDescriptionNode( t_node, encoding )
, 'new_state' : _getNodeAttribute( t_node, 'new_state'
, encoding )
, 'trigger' : _getNodeAttribute( t_node, 'trigger', encoding )
, 'before_script' : _getNodeAttribute( t_node, 'before_script'
, encoding )
, 'after_script' : _getNodeAttribute( t_node, 'after_script'
, encoding )
, 'action' : _extractActionNode( t_node, encoding )
, 'guard' : _extractGuardNode( t_node, encoding )
}
info[ 'variables' ] = var_map = {}
for assignment in t_node.getElementsByTagName( 'assignment' ):
name = _getNodeAttribute( assignment, 'name', encoding )
expr = _coalesceTextNodeChildren( assignment, encoding )
var_map[ name ] = expr
result.append( info )
return result
def _extractRoleNodes(parent, encoding=None):
result = []
for r_node in parent.getElementsByTagName('role'):
value = _getNodeAttribute(r_node, 'name', encoding)
result.append(value)
return tuple(result)
def _extractWorklistNodes(root, encoding=None):
result = []
for w_node in root.getElementsByTagName('worklist'):
info = {
'worklist_id': _getNodeAttribute(w_node, 'worklist_id', encoding),
'title': _getNodeAttribute(w_node, 'title', encoding),
'description': _extractDescriptionNode(w_node, encoding),
'match': _extractMatchNode(w_node, encoding),
'action': _extractActionNode(w_node, encoding),
'guard': _extractGuardNode(w_node, encoding)
}
result.append(info)
return result
def _extractRoleNodes(parent, encoding=None):
result = []
for r_node in parent.getElementsByTagName('role'):
value = _getNodeAttribute(r_node, 'name', encoding)
result.append(value)
return tuple(result)
def _extractWorklistNodes( root, encoding=None ):
result = []
for w_node in root.getElementsByTagName( 'worklist' ):
info = { 'worklist_id' : _getNodeAttribute( w_node, 'worklist_id'
, encoding )
, 'title' : _getNodeAttribute( w_node, 'title' , encoding )
, 'description' : _extractDescriptionNode( w_node, encoding )
, 'match' : _extractMatchNode( w_node, encoding )
, 'action' : _extractActionNode( w_node, encoding )
, 'guard' : _extractGuardNode( w_node, encoding )
}
result.append( info )
return result
def _extractScriptNodes( root, encoding=None ):
result = []
for s_node in root.getElementsByTagName( 'script' ):
info = { 'script_id' : _getNodeAttribute( s_node, 'script_id' )
, 'meta_type' : _getNodeAttribute( s_node, 'type' , encoding )
}
filename = _queryNodeAttribute( s_node, 'filename' , None, encoding )
if filename is not None:
info[ 'filename' ] = filename
result.append( info )
return result
def _extractScriptNodes(root, encoding=None):
result = []
for s_node in root.getElementsByTagName('script'):
info = {
'script_id': _getNodeAttribute(s_node, 'script_id'),
'meta_type': _getNodeAttribute(s_node, 'type', encoding)
}
filename = _queryNodeAttribute(s_node, 'filename', None, encoding)
if filename is not None:
info['filename'] = filename
result.append(info)
return result
def _extractPermissionNodes(parent, encoding=None):
result = []
for p_node in parent.getElementsByTagName('permission'):
name = _getNodeAttribute(p_node, 'name', encoding)
roles = _extractRoleNodes(p_node, encoding)
acquire = _getNodeAttributeBoolean(p_node, 'acquire')
result.append({'name': name, 'roles': roles, 'acquire': acquire})
return tuple(result)
def _extractActionProviderNodes(parent, encoding=None):
result = []
for ap_node in parent.getElementsByTagName('action-provider'):
id = _getNodeAttribute(ap_node, 'id', encoding)
actions = _extractActionNodes(ap_node, encoding)
result.append( { 'id': id, 'actions': actions } )
return result
def _extractActionProviderNodes(parent, encoding=None):
result = []
for ap_node in parent.getElementsByTagName('action-provider'):
id = _getNodeAttribute(ap_node, 'id', encoding)
actions = _extractActionNodes(ap_node, encoding)
result.append( { 'id': id, 'actions': actions } )
return result
def _extractPermissionNodes(parent, encoding=None):
result = []
for p_node in parent.getElementsByTagName('permission'):
name = _getNodeAttribute(p_node, 'name', encoding)
roles = _extractRoleNodes(p_node, encoding)
acquire = _getNodeAttributeBoolean(p_node, 'acquire')
result.append( { 'name': name,
'roles': roles,
'acquire': acquire } )
return tuple(result)
def _es(key):
return _getNodeAttribute(a_node, key, encoding)
def _es(key):
return _getNodeAttribute(a_node, key, encoding)