1 files changed, 113 insertions, 0 deletions
diff --git a/Monitoring/src/main/python/DataProcessing/Prefix.py.old b/Monitoring/src/main/python/DataProcessing/Prefix.py.old
new file mode 100644
index 0000000..62885e4
--- /dev/null
+++ b/Monitoring/src/main/python/DataProcessing/Prefix.py.old
@@ -0,0 +1,113 @@
+'''
+Created on Feb 27, 2012
+
+@author: steger
+'''
+from DataProcessing.DataError import PrefixError
+
+class PrefixManager(object):
+    '''
+    @summary: the unit prefix container
+    '''
+    class Prefix(object):
+        def __init__(self, reference, symbol, base, exponent):
+            '''
+            @summary: constructor
+            @param reference: the reference to the unit prefix
+            @type reference: str
+            @param symbol: a short form of the unit prefix
+            @type symbol: str
+            @param base: the base of the unit prefix, typically 2 or 10
+            @type base: int
+            @param exponent: the exponent of the unit prefix
+            @type exponent: int
+            '''
+            scale = base ** exponent
+            self._data = (reference, symbol, base, exponent, scale)
+        def __str__(self):
+            return self.symbol
+        @property
+        def reference(self):
+            return self._data[0]
+        @property
+        def symbol(self):
+            return self._data[1]
+        @property
+        def base(self):
+            return self._data[2]
+        @property
+        def exponent(self):
+            return self._data[3]
+        @property
+        def scale(self):
+            return self._data[4]
+
+    def __init__(self):
+        '''
+        @summary: constructor
+        '''
+        self.prefixes = {}
+        self.duplicatesymbols = set()
+
+    def __contains__(self, item):
+        '''
+        @summary: check the existence of a unit prefix
+        @param item: a unit prefix or its symbol
+        @type item: Prefix or str
+        @return: True if the prefix is known by the PrefixManager
+        @rtype: bool
+        @raise PrefixError: Wrong item type
+        '''
+        if isinstance(item, self.Prefix):
+            return item in self.prefixes.values()
+        elif isinstance(item, str):
+            for prefix in self.prefixes.values():
+                if prefix.symbol == item:
+                    return True
+            return False
+        else:
+            raise PrefixError("Wrong item type %s" % item)
+    
+    def __len__(self):
+        '''
+        @summary: the number of prefixes known by the PrefixManager
+        @return: the number of prefixes known by the PrefixManager
+        @rtype: int
+        '''
+        return len(self.prefixes)
+    
+    def newPrefix(self, reference, symbol, base, exponent):
+        '''
+        @summary: generate a new unit prefix
+        @param reference: the reference to the unit prefix
+        @type reference: str
+        @param symbol: a short form of the unit prefix
+        @type symbol: str
+        @param base: the base of the unit prefix, typically 2 or 10
+        @type base: int
+        @param exponent: the exponent of the unit prefix
+        @type exponent: int
+        @return: the new unit prefix
+        @rtype: Prefix
+        @raise PrefixError: Prefix with reference exists
+        '''
+        if self.prefixes.has_key(reference): 
+            raise PrefixError("Prefix with reference %s already exists" % reference)
+        if PrefixManager.__contains__(self, symbol):
+            self.duplicatesymbols.add(symbol)
+        prefix = self.Prefix(reference, symbol, base, exponent)
+        self.prefixes[reference] = prefix
+        return prefix
+
+    def __getitem__(self, reference):
+        '''
+        @summary: look up the prefix in the PrefixManager based on its reference
+        @param reference: the reference to the unit prefix
+        @type reference: str
+        @return: the unit prefix found
+        @rtype: Prefix
+        @raise PrefixError: Prefix with reference not found
+        '''
+        if self.prefixes.has_key(reference):
+            return self.prefixes[reference]
+        raise PrefixError("Prefix with reference %s not found" % reference)