X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Frspecs%2Fversion_manager.py;h=9efabeab0259139bb792904ccdc962d74293d8ee;hb=be71b8d7c957590aecb593e5c9be315aa189729f;hp=534ec8358ec439bba87c3e980408858ec3e46b8b;hpb=f3b8ac1765ee6bfc8fd07d710fd7ccb66159ba6a;p=sfa.git

diff --git a/sfa/rspecs/version_manager.py b/sfa/rspecs/version_manager.py
index 534ec835..9efabeab 100644
--- a/sfa/rspecs/version_manager.py
+++ b/sfa/rspecs/version_manager.py
@@ -1,19 +1,24 @@
 import os
+from sfa.util.faults import InvalidRSpec, UnsupportedRSpecVersion
+from sfa.rspecs.version import RSpecVersion 
+from sfa.util.sfalogging import logger    
 
 class VersionManager:
-    default_type = 'SFA'
-    default_version_num = '1'     
-        
     def __init__(self):
         self.versions = []
         self.load_versions()
 
+    def __repr__(self):
+        return "<VersionManager with {} flavours: [{}]>"\
+            .format(len(self.versions),
+                    ", ".join( [ str(x) for x in self.versions ]))
+        
     def load_versions(self):
         path = os.path.dirname(os.path.abspath( __file__ ))
         versions_path = path + os.sep + 'versions'
         versions_module_path = 'sfa.rspecs.versions'
         valid_module = lambda x: os.path.isfile(os.sep.join([versions_path, x])) \
-                        and not x.endswith('.pyc') and x not in ['__init__.py']
+                        and x.endswith('.py') and x !=  '__init__.py'
         files = [f for f in os.listdir(versions_path) if valid_module(f)]
         for filename in files:
             basename = filename.split('.')[0]
@@ -21,24 +26,27 @@ class VersionManager:
             module = __import__(module_path, fromlist=module_path)
             for attr_name in dir(module):
                 attr = getattr(module, attr_name)
-                if hasattr(attr, 'version'):
-                    self.versions.append(attr)
+                if hasattr(attr, 'version') and hasattr(attr, 'enabled') and attr.enabled == True:
+                    self.versions.append(attr())
 
     def _get_version(self, type, version_num=None, content_type=None):
         retval = None
         for version in self.versions:
             if type is None or type.lower() == version.type.lower():
-                if version_num is None or version_num == version.version:
-                    if content_type is None or content_type.lower() == version.content_type.lower():
+                if version_num is None or str(float(version_num)) == str(float(version.version)):
+                    if content_type is None or content_type.lower() == version.content_type.lower() \
+                      or version.content_type == '*':
                         retval = version
+                        ### sounds like we should be glad with the first match, not the last one
+                        break
         if not retval:
-            raise Exception, "No such version format: %s version: %s type:%s "% (type, version_num, content_type)
+            raise UnsupportedRSpecVersion("[%s %s %s] is not suported here"% (type, version_num, content_type))
         return retval
 
-    def get_version(self, version):
+    def get_version(self, version=None):
         retval = None
         if isinstance(version, dict):
-            retval =  self._get_version(version.get('type'), version.get('version_num'), version.get('content_type'))
+            retval =  self._get_version(version.get('type'), version.get('version'), version.get('content_type'))
         elif isinstance(version, basestring):
             version_parts = version.split(' ')     
             num_parts = len(version_parts)
@@ -50,17 +58,42 @@ class VersionManager:
             if num_parts > 2:
                 content_type = version_parts[2]
             retval = self._get_version(type, version_num, content_type) 
+        elif isinstance(version, RSpecVersion):
+            retval = version
+        elif not version:
+            retval = self.versions[0]
         else:
-            logger.info("Unable to parse rspec version, using default")
-            retval = self._get_version(self.default_type, self.default_version_num)   
+            raise UnsupportedRSpecVersion("No such version: %s "% str(version))
  
         return retval
 
+    def get_version_by_schema(self, schema):
+        retval = None
+        for version in self.versions:
+            if schema == version.schema:
+                retval = version
+        if not retval:
+            raise InvalidRSpec("Unkwnown RSpec schema: %s" % schema)
+        return retval
+
+    def show_by_string(self, string):
+        try:
+            print self.get_version(string)
+        except Exception as e:
+            print e
+
+    def show_by_schema(self, string):
+        try:
+            print self.get_version_by_schema(string)
+        except Exception as e:
+            print e
+
 if __name__ == '__main__':
-    v = VersionManager()
-    print v.versions
-    print v.get_version('sfa 1') 
-    print v.get_version('protogeni 2') 
-    print v.get_version('protogeni 2 advertisement') 
-    
+    manager = VersionManager()
+    print manager
+    manager.show_by_string('sfa 1') 
+    manager.show_by_string('protogeni 2') 
+    manager.show_by_string('protogeni 2 advertisement') 
+    manager.show_by_schema('http://www.protogeni.net/resources/rspec/2/ad.xsd') 
+    manager.show_by_schema('http://sorch.netmode.ntua.gr/ws/RSpec/ad.xsd')