Add web server python code for data collection

JIRA: PREDICTION-46

Change-Id: If34d6c965c432719d260df144afd16fa7f32971c
Signed-off-by: Linghui Zeng <linghui.zeng@huawei.com>

1 files changed, 197 insertions, 0 deletions

diff --git a/predPy/collectData.py b/predPy/collectData.py
new file mode 100644
index 0000000..a7296da
--- /dev/null
+++ b/predPy/collectData.py
@@ -0,0 +1,197 @@
+# Copyright 2016 Huawei Technologies Co. Ltd.
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Collect the wanted data by using ceilometer client to send HTTP request to
+ceilometer server
+"""
+
+# Import modules
+import web
+import subprocess
+import ceilometerclient.client
+import json
+import readline  # It automatically wraps studin
+
+urls = (
+    '/', 'Index',
+    '/meter', 'Meter',
+    '/sample', 'Sample'
+)
+
+app = web.application(urls, globals())
+
+# Global variables
+c_client = None
+resource_id_list = []
+resource_id = None
+
+render = web.template.render('templates', base="layout")
+
+
+class Index(object):
+    def GET(self):
+        return render.source()
+
+    def POST(self):
+        form = web.input(content=None)
+        dumps = ('/usr/bin/python -c '
+                 '"import os, json; print json.dumps(dict(os.environ))"')
+        command = ['/bin/bash', '-c', form.content + '&&' + dumps]
+        pipe = subprocess.Popen(command, stdout=subprocess.PIPE)
+        env = json.loads(pipe.stdout.read())
+
+        # Create an authenticated ceilometer client
+        global c_client
+        c_client = ceilometerclient.client.get_client(
+            "2", os_username=env['OS_USERNAME'],
+            os_password=env['OS_PASSWORD'],
+            os_tenant_name=env['OS_TENANT_NAME'],
+            os_auth_url=env['OS_AUTH_URL'])
+
+        resource_list = c_client.resources.list()
+        resourceInfo = open("templates/resourceInfo.html", "w")
+        index = 0
+        resourceInfo.write("<h2>All resource ids which can be measured "
+                           "are listed as follows:</h2>")
+        resourceInfo.write("<ol>\n")
+        for each in resource_list:
+            resourceInfo.write("  <li>resource_id_list[%d]: %s</li>\n" %
+                               (index, each.resource_id))
+            index += 1
+            global resource_id_list
+            resource_id_list.append(each.resource_id)
+        resourceInfo.write("</ol>\n")
+        resourceInfo.write(
+            "<h2>The following shows resources corresponding to resource ids: "
+            "</h2><ul>\n"
+            "  <li>resource_id_list[0:3] represents image ids</li> \n"
+            "  <li>resource_id_list[3] represents instance ids</li> \n"
+            "  <li>resource_id_list[4:6] represents disk ids</li> \n"
+            "  <li>resource_id_list[6] represents interface ids</li> \n"
+            "</ul><h2>So you can collect what kind of data you like."
+            "Just type the number from 0 to 6</h2>"
+        )
+
+        resourceInfo.write(
+            '<form action="/meter" method="POST" height=29px> \n'
+            '<input type="text" name="number" width=200px>\n'
+            '<input type="submit" value="Submit Number" class="button">\n'
+            '</form>'
+        )
+        resourceInfo.close()
+        return render.resourceInfo()
+
+
+class Meter(object):
+    def POST(self):
+        form = web.input(number=None)
+        input_number = int(form.number)
+        global resource_id
+        resource_id = resource_id_list[input_number]
+        query_meter = [dict(field='resource_id', op='eq', value=resource_id)]
+        meter_list = c_client.meters.list(q=query_meter)
+        meter_name_list = []
+        metersInfo = open("templates/metersInfo.html", "w")
+        metersInfo.write(
+            '<h2>List meter names related with the resource id--%s as '
+            'follows:</h2>\n' % resource_id)
+        metersInfo.write("<ol>\n")
+        for each in meter_list:
+            metersInfo.write("  <li>%s</li>\n" % each.name)
+            meter_name_list.append(each.name)
+        metersInfo.write("</ol>\n")
+        metersInfo.write(
+            "\n<p>You can collect whatever meters you like just by typing "
+            "the meter names and using ',' as the separator,\n e.g., "
+            "disk.read.requests.rate, disk.write.requests.rate, "
+            "disk.read.bytes.rate, disk.write.bytes.rate, cpu_util.</p>")
+        metersInfo.write(
+            "<p>At the same time, you need to specify the beginning time and "
+            "the end time for the collection. \nThe time format is fixed, "
+            "e.g., 2016-02-28T00:00:00.</p>")
+
+        metersInfo.write(
+            '<form action="/sample" method="POST" height=29px>\n'
+            'Meters:<input type="text" name="sample" class="input-box">\n'
+            '<br> \n'
+            'Begin Time:<input type="text" name="begin_time" class="input-box">'
+            '<br> \n'
+            'End Time:<input type="text" name="end_time" class="input-box"> \n'
+            '<br> \n'
+            '<input type="submit" value="Submit" class="button">'
+        )
+        metersInfo.close()
+        return render.metersInfo()
+
+
+class Sample(object):
+    def POST(self):
+        form = web.input(sample=None, begin_time=None, end_time=None)
+        input_meters = form.sample
+        collect_meters = input_meters.split(",")
+        collect_meters = [meter.strip() for meter in collect_meters]
+
+        collect_meter_samples = []
+        for each in collect_meters:
+            query = [
+                dict(field='resource_id', op='eq', value=resource_id),
+                dict(field='timestamp', op='ge', value=form.begin_time),
+                dict(field='timestamp', op='lt', value=form.end_time),
+                dict(field='meter', op='eq', value=each)
+            ]
+            (collect_meter_samples.
+                append(c_client.new_samples.list(q=query, limit=1000)))
+        # append(c_client.samples.list(each, limit=1000)))
+        fout = open('collectMeterSamples.arff', 'w')
+        head_info = ("% ARFF file for the collected meter samples "
+                     "with some numeric feature from ceilometer API. \n \n"
+                     "@relation  collected samples for VMs on host \n \n"
+                     "@attribute timestample \n"
+                     "@attribute resource id \n")
+
+        for each in collect_meters:
+            head_info = head_info + "@attribute  %s \n" % each
+
+        head_info = head_info + "@data \n \n"
+        fout.write(head_info)
+
+        count = 0
+        collect_meter_sample_values = []
+        for each in collect_meter_samples[1:]:
+            each_sample_value = []
+            for i in each:
+                # each_sample_value.append(str(i.counter_volume))
+                each_sample_value.append(str(i.volume))
+            collect_meter_sample_values.append(each_sample_value)
+
+        for each in collect_meter_samples[0]:
+            fout.write(each.timestamp + ', ' + each.resource_id)
+            # fout.write(', ' + str(each.counter_volume))
+            fout.write(', ' + str(each.volume))
+            for i in collect_meter_sample_values:
+                fout.write(', ' + i[count])
+                fout.write('\n')
+            count += 1
+
+        fout.close()
+        return render.meterSamples(count=count)
+
+
+if __name__ == "__main__":
+    app.run()