1 files changed, 39 insertions, 0 deletions
diff --git a/Monitoring/src/main/python/DataProcessing/DataIndex.py b/Monitoring/src/main/python/DataProcessing/DataIndex.py
new file mode 100644
index 0000000..84d8390
--- /dev/null
+++ b/Monitoring/src/main/python/DataProcessing/DataIndex.py
@@ -0,0 +1,39 @@
+'''
+Created on Dec 31, 2012
+
+@author: steger
+'''
+from DataProcessing.DataReader import DataReader
+
+class DataIndex(DataReader):
+    '''
+    classdocs
+    '''
+
+    def __init__(self, datasource, key):
+        '''
+        Constructor
+        '''
+        DataReader.__init__(self, datasource)
+        self.indexmap = {}
+        self.extract(cellrequest = key)
+    
+    def buildindex(self):
+        i = len(self.indexmap)
+        for k in self:
+            self.indexmap[tuple(k)] = i
+            i += 1
+    
+    def __getitem__(self, k):
+        if self.sourceCleared.isSet():
+            self.sourceCleared.clear()
+            self.indexmap.clear()
+            self.buildindex()
+        try:
+            iter(k)
+        except TypeError:
+            k = (k,)
+        if not self.indexmap.has_key(k) and self.sourceExpanded.isSet():
+            self.sourceExpanded.clear()
+            self.buildindex()
+        return self.source._rawrecords[ self.indexmap[k] ]
+\ No newline at end of file