255 lines
7.8 KiB
Python
255 lines
7.8 KiB
Python
from pydruid import client
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from pydruid.utils.filters import Dimension, Filter
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from dateutil.parser import parse
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from datetime import datetime, timedelta
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from flask import Flask, render_template, request, flash
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from flask_bootstrap import Bootstrap
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from wtforms import Form, SelectMultipleField, SelectField, TextField
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import pandas as pd
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from pandas_highcharts.core import serialize
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pd.set_option('display.max_colwidth', -1)
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since_l = {
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'1hour': timedelta(hours=1),
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'1day': timedelta(days=1),
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'7days': timedelta(days=7),
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'28days': timedelta(days=28),
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'all': timedelta(days=365*100)
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}
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metric = "count"
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class DruidDataSource(object):
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def __init__(self, name):
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self.name = name
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self.cols = self.latest_metadata()
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self.col_names = sorted([col for col in self.cols.keys()])
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def latest_metadata(self):
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max_time = query.time_boundary(
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datasource=self.name)[0]['result']['maxTime']
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max_time = parse(max_time)
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intervals = (max_time - timedelta(seconds=1)).isoformat() + '/'
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intervals += max_time.isoformat()
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return query.segment_metadata(
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datasource=self.name,
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intervals=intervals)[-1]['columns']
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def form_factory(datasource, form_args=None):
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grain = ['all', 'none', 'minute', 'hour', 'day']
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limits = [0, 5, 10, 25, 50, 100, 500]
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if form_args:
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limit = form_args.get("limit")
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try:
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limit = int(limit)
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if limit not in limits:
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limits.append(limit)
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limits = sorted(limits)
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except:
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pass
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class QueryForm(Form):
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viz_type = SelectField(
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'Viz', choices=[(k, v.verbose_name) for k, v in viz_types.items()])
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groupby = SelectMultipleField(
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'Group by', choices=[(m, m) for m in datasource.col_names])
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granularity = SelectField(
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'Granularity', choices=[(g, g) for g in grain])
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since = SelectField(
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'Since', choices=[(s, s) for s in since_l.keys()])
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limit = SelectField(
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'Limit', choices=[(s, s) for s in limits])
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flt_col_1 = SelectField(
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'Filter 1', choices=[(m, m) for m in datasource.col_names])
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flt_op_1 = SelectField(
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'Filter 1', choices=[(m, m) for m in ['==', '!=', 'in',]])
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flt_eq_1 = TextField("Super")
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return QueryForm
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class BaseViz(object):
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verbose_name = "Base Viz"
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template = "panoramix/datasource.html"
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def __init__(self, datasource, form_class, form_data):
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self.datasource = datasource
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self.form_class = form_class
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self.form_data = form_data
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self.df = self.bake_query()
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if self.df is not None:
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self.df.timestamp = pd.to_datetime(self.df.timestamp)
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self.df_prep()
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self.form_prep()
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def bake_query(self):
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ds = self.datasource
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args = self.form_data
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groupby = args.getlist("groupby") or []
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granularity = args.get("granularity")
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metric = "count"
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limit = int(args.get("limit", ROW_LIMIT)) or ROW_LIMIT
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since = args.get("since", "all")
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from_dttm = (datetime.now() - since_l[since]).isoformat()
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# Building filters
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i = 1
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filters = None
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while True:
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col = args.get("flt_col_" + str(i))
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op = args.get("flt_op_" + str(i))
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eq = args.get("flt_eq_" + str(i))
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if col and op and eq:
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cond = None
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if op == '==':
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cond = Dimension(col)==eq
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elif op == '!=':
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cond = ~(Dimension(col)==eq)
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elif op == 'in':
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fields = []
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for s in eq.split(','):
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s = s.strip()
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fields.append(Filter.build_filter(Dimension(col)==s))
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cond = Filter(type="or", fields=fields)
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if filters:
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filters = cond and filters
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else:
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filters = cond
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else:
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break
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i += 1
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kw = {}
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if filters:
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kw['filter'] = filters
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query.groupby(
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datasource=ds.name,
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granularity=granularity or 'all',
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intervals=from_dttm + '/' + datetime.now().isoformat(),
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dimensions=groupby,
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aggregations={"count": client.doublesum(metric)},
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#filter=filters,
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limit_spec={
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"type": "default",
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"limit": limit,
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"columns": [{
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"dimension" : metric,
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"direction" : "descending",
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},],
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},
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**kw
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)
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return query.export_pandas()
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def df_prep(self, ):
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pass
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def form_prep(self):
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pass
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def render(self, *args, **kwargs):
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form = self.form_class(self.form_data)
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return render_template(
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self.template, form=form)
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class TableViz(BaseViz):
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verbose_name = "Table View"
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template = 'panoramix/viz_table.html'
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def render(self):
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form = self.form_class(self.form_data)
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if self.df is None or self.df.empty:
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flash("No data.", "error")
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table = None
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else:
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if self.form_data.get("granularity") == "all":
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del self.df['timestamp']
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table = self.df.to_html(
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classes=["table", "table-striped", 'table-bordered'],
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index=False)
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return render_template(
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self.template, form=form, table=table)
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class HighchartsViz(BaseViz):
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verbose_name = "Base Highcharts Viz"
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template = 'panoramix/viz_highcharts.html'
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chart_kind = 'line'
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def render(self, *args, **kwargs):
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form = self.form_class(self.form_data)
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if self.df is None or self.df.empty:
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flash("No data.", "error")
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else:
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table = self.df.to_html(
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classes=["table", "table-striped", 'table-bordered'],
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index=False)
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return render_template(
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self.template, form=form, table=table,
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*args, **kwargs)
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class TimeSeriesViz(HighchartsViz):
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verbose_name = "Time Series - Line Chart"
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chart_kind = "line"
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def render(self):
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df = self.df
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df = df.pivot_table(
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index="timestamp",
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columns=[
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col for col in df.columns if col not in ["timestamp", metric]],
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values=[metric])
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chart_js = serialize(
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df, kind=self.chart_kind, **CHART_ARGS)
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return super(TimeSeriesViz, self).render(chart_js=chart_js)
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class TimeSeriesAreaViz(TimeSeriesViz):
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verbose_name = "Time Series - Area Chart"
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chart_kind = "area"
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class DistributionBarViz(HighchartsViz):
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verbose_name = "Distribution - Bar Chart"
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chart_kind = "bar"
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def render(self):
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df = self.df
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df = df.pivot_table(
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index=[
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col for col in df.columns if col not in ['timestamp', metric]],
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values=[metric])
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df = df.sort(metric, ascending=False)
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chart_js = serialize(
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df, kind=self.chart_kind, **CHART_ARGS)
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return super(DistributionBarViz, self).render(chart_js=chart_js)
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viz_types = {
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'table': TableViz,
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'line': TimeSeriesViz,
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'area': TimeSeriesAreaViz,
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'dist_bar': DistributionBarViz,
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}
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@app.route("/datasource/<name>/")
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def datasource(name):
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viz_type = request.args.get("viz_type", "table")
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datasource = DruidDataSource(name)
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viz = viz_types[viz_type](
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datasource,
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form_class=form_factory(datasource, request.args),
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form_data=request.args)
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return viz.render()
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if __name__ == '__main__':
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app = Flask(__name__)
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app.secret_key = "monkeys"
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Bootstrap(app)
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app.debug = True
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app.run(host='0.0.0.0', port=PORT)
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