The first version of PyDAS2

from amara import bindery

class PyDAS2Element(object):
    def __init__(self,**kwargs):
        for k,v in kwargs.items():
            setattr(self,k,v)
    def __str__(self):
        return str(self.__class__.__name__)[6:]


def attribute_wrapper(attr):
    ret = {}
    for k,v in attr.items():
        ret[str(k[1])] = str(v)
    return ret

def make_element(name,obj):
    #return  eval('PyDAS2'+name)(**attribute_wrapper(obj.xml_attributes))
    return  PyDAS2Element(**attribute_wrapper(obj.xml_attributes))

def recursive_parse(root,obj_list,parent_name=None):
    if parent_name:
        par_name = '.'.join((parent_name,root.__class__.__name__))
    else:
        par_name = root.__class__.__name__
    for i in range(0,len(root.xml_children)): #iterate all child element nodes
        if root.xml_children[i].xml_type == 'element':
            ele_name = root.xml_children[i].__class__.__name__
            ele_obj = root.xml_children[i]
            #print par_name,ele_name,attribute_wrapper(ele_obj.xml_attributes)
            obj_list.append((par_name,ele_name,attribute_wrapper(ele_obj.xml_attributes))) 
            recursive_parse(root.xml_children[i],obj_list,par_name)

def parse(xml): 
    objs = []
    root = bindery.parse(xml)
    recursive_parse(root,objs)
    return objs


def test_source(xml):
    objs = parse(xml)
    base = ''
    for par_name,ele_name,ele_attr in objs:
        print par_name,ele_name,ele_attr
        #if ele_name == 'SOURCES':
        #    base = ele_attr['base']
        #if ele_name == 'VERSION':
        #    print ''.join((base,ele_attr['uri']))
            
        #if ele_name == 'CAPABILITY':
        #    if ele_attr['type'] == 'features':
        #    print ''.join((base,ele_attr['query_uri']))
            
if __name__=='__main__':
    feature_url = """http://netaffxdas.affymetrix.com/das2/das2/genome/H_sapiens_Mar_2006/features?
    segment=http://netaffxdas.affymetrix.com/das2/sequence/H_sapiens_Mar_2006/chr21;
    overlaps=26010000:26060000;
    type=http://netaffxdas.affymetrix.com/das2/sequence/H_sapiens_Mar_2006/knownGene
    """    
    
    #test_source('http://netaffxdas.affymetrix.com/das2/sources')
    #test_source('http://netaffxdas.affymetrix.com/das2/genome/H_sapiens_Feb_2009/segments')
    test_source('http://netaffxdas.affymetrix.com/das2/genome/H_sapiens_Mar_2006/types')
    #test_source('http://netaffxdas.affymetrix.com/das2/genome/H_sapiens_Feb_2009/features')