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################################################################# |
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# MET v2 Metadate Explorer Tool |
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# |
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# This Software is Open Source. See License: https://github.com/TERENA/met/blob/master/LICENSE.md |
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# Copyright (c) 2012, TERENA All rights reserved. |
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# |
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# This Software is based on MET v1 developed for TERENA by Yaco Sistemas, http://www.yaco.es/ |
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# MET v2 was developed for TERENA by Tamim Ziai, DAASI International GmbH, http://www.daasi.de |
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# Current version of MET has been revised for performance improvements by Andrea Biancini, |
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# Consortium GARR, http://www.garr.it |
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######################################################################################### |
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import csv |
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from xml.dom.minidom import Document |
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from django.http import HttpResponse, HttpResponseBadRequest |
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from django.template.defaultfilters import slugify |
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import simplejson as json |
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def export_summary_csv(qs, relation, filename, counters): |
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response = HttpResponse(content_type='text/csv') |
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response['Content-Disposition'] = ('attachment; filename=%s.csv' |
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% slugify(filename)) |
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writer = csv.writer(response, quoting=csv.QUOTE_NONNUMERIC) |
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labels = ['name'] |
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labels.extend([label for (label, _) in counters]) |
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writer.writerow(labels) |
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# Write data to CSV file |
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for obj in qs: |
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row = [unicode(obj).encode('utf-8')] |
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for _, counter_filter in counters: |
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row.append(getattr(obj, relation).filter(**counter_filter).count()) |
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writer.writerow(row) |
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# Return CSV file to browser as download |
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return response |
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def export_summary_json(qs, relation, filename, counters): |
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objs = {} |
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for obj in qs: |
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item = {} |
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for counter_label, counter_filter in counters: |
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item[counter_label] = getattr(obj, relation).filter(**counter_filter).count() |
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objs[unicode(obj)] = item |
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# Return JS file to browser as download |
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serialized = json.dumps(objs) |
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response = HttpResponse(serialized, content_type='application/json') |
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response['Content-Disposition'] = ('attachment; filename=%s.json' |
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% slugify(filename)) |
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return response |
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def export_summary_xml(qs, relation, filename, counters): |
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xml = Document() |
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root = xml.createElement(filename) |
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# Write data to CSV file |
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for obj in qs: |
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item = xml.createElement("federation") |
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item.setAttribute("name", unicode(obj)) |
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for counter_label, counter_filter in counters: |
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val = getattr(obj, relation).filter(**counter_filter).count() |
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element = xml.createElement(counter_label) |
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xmlval = xml.createTextNode(unicode(val)) |
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element.appendChild(xmlval) |
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item.appendChild(element) |
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root.appendChild(item) |
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xml.appendChild(root) |
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# Return XML file to browser as download |
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response = HttpResponse(xml.toxml(), content_type='application/xml') |
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response['Content-Disposition'] = ('attachment; filename=%s.xml' |
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% slugify(filename)) |
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return response |
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export_summary_modes = { |
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'csv': export_summary_csv, |
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'json': export_summary_json, |
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'xml': export_summary_xml, |
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} |
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def export_summary(mode, qs, relation, filename, counters): |
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if mode in export_summary_modes: |
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return export_summary_modes[mode](qs, relation, filename, counters) |
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else: |
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content = "Error 400, Format %s is not supported" % mode |
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return HttpResponseBadRequest(content) |
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GEANT /
met
