Added a service get predictions from a previously built model

predict/.htaccess

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+SetHandler mod_python 
+PythonHandler predictors
+PythonDebug On
+<Files ~ "\.(gif|html|jpg|png|css)$">
+   SetHandler default-handler
+</Files>

predict/predictors.py

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+from mod_python import apache
+import SOAPpy, sys, string, StringIO, base64, urllib
+import elementtree.ElementTree as ET
+from elementtree.ElementTree import XML
+
+
+baseUrl = 'http://rguha.ath.cx/~rguha/cicc/rest/desc/descriptors/org.openscience.cdk.qsar.descriptors.molecular.'
+descs = {'ATSm1' : 'AutocorrelationDescriptorMass',
+         'C1SP2' : 'CarbonTypesDescriptor',
+         'AMR' : 'ALOGPDescriptor' }
+
+def handler(req):
+    uriParts = req.uri.split('/')
+    smiles = uriParts[-1]
+
+    descriptors = {}
+
+    ## get descriptors
+    for key in descs.keys():
+        descClass = descs[key]
+        url = baseUrl + descClass + "/" + smiles
+        doc = ''.join(urllib.urlopen(url).readlines())
+        root = XML(doc)
+        values = root.findall("Descriptor")
+        for value in values:
+            if value.attrib['name'] == key: descriptors[key] = float(value.attrib['value'])
+
+    ## load the model and get a prediction
+    from rpy import *
+
+    makeDF = r("""
+function( ..., names) 
+{ 
+df <- data.frame(...)
+names(df) <- names
+df
+}
+""")
+
+    df = makeDF(1,2,3, names= ['a','b','c'])
+#    r("""load('test-model.R')""")
+
+    req.write(str(descriptors))
+    return apache.OK