play around with a command-line query script, displaying statistics f…

…rom all nodes.

other/__init__.py

@@ -1,22 +0,0 @@
-from lxml.builder import E
-from lxml import etree as e
-from lxml.etree import XPath
-import string as s
-
-text_list=XPath("//text()")
-parser=e.XMLParser(remove_blank_text=True)
-
-# XML schemata
-xsl_job2html_url='http://vamdc.fysast.uu.se:8080/DSAcat/TAP/uws-job-to-html.xsl'
-xsl_job2html = e.parse(xsl_job2html_url)
-job2html= e.XSLT(xsl_job2html)
-
-xsl_data2html_url='http://vamdc.fysast.uu.se:8080/DSAcat/TAP/uws-results-to-html.xsl'
-xsl_data2html = e.parse(xsl_data2html_url)
-data2html= e.XSLT(xsl_data2html)
-
-xsl_xsams_url='http://vamdc.fysast.uu.se:8080/DSAcat/xsams-0.1.xsd'
-xsl_xsams= e.parse(xsl_xsams_url)
-
-
-#import XsamsPyxb as xsams # this requires pyxb to be installed

other/query_preview.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+
+import sys
+import requests
+from multiprocessing import Pool
+from vamdc.other.registry import getNodeList
+
+try:
+    QUERY = sys.argv[1]
+except:
+    print "Please give the complete query string as an argument, in double quotes."
+    sys.exit(1)
+
+PARAMS = {\
+    'QUERY':QUERY,
+    'FORMAT':'XSAMS',
+    'LANG':'VSS2'
+    }
+
+def headreq(nodes):
+    return requests.head(nodes['url']+'sync',params=PARAMS,timeout=5)
+
+def run():
+    nodes = getNodeList()
+    n = len(nodes)
+    pool = Pool(processes=n)
+
+    pardict = {'url':[node['url']+'sync' for node in nodes],
+               'params':(PARAMS,)*n,
+               'timeout':(5,)*n
+            }
+
+    res = pool.map(headreq,nodes)
+    print res
+
+if __name__ == '__main__':
+    run()