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| <h1>Source code for apache_beam.testing.benchmarks.nexmark.queries.query11</h1><div class="highlight"><pre> |
| <span></span><span class="c1">#</span> |
| <span class="c1"># Licensed to the Apache Software Foundation (ASF) under one or more</span> |
| <span class="c1"># contributor license agreements. See the NOTICE file distributed with</span> |
| <span class="c1"># this work for additional information regarding copyright ownership.</span> |
| <span class="c1"># The ASF licenses this file to You under the Apache License, Version 2.0</span> |
| <span class="c1"># (the "License"); you may not use this file except in compliance with</span> |
| <span class="c1"># the License. You may obtain a copy of the License at</span> |
| <span class="c1">#</span> |
| <span class="c1"># http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="c1">#</span> |
| <span class="c1"># Unless required by applicable law or agreed to in writing, software</span> |
| <span class="c1"># distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="c1"># WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="c1"># See the License for the specific language governing permissions and</span> |
| <span class="c1"># limitations under the License.</span> |
| <span class="c1">#</span> |
| |
| <span class="sd">"""</span> |
| <span class="sd">Query 11, How many bids did a user make in each session he was active?</span> |
| <span class="sd">(Not in original suite.)</span> |
| |
| <span class="sd">Group bids by the same user into sessions with window_size_sec max gap.</span> |
| <span class="sd">However limit the session to at most max_log_events. Emit the number of</span> |
| <span class="sd">bids per session.</span> |
| <span class="sd">"""</span> |
| |
| <span class="kn">import</span> <span class="nn">apache_beam</span> <span class="k">as</span> <span class="nn">beam</span> |
| <span class="kn">from</span> <span class="nn">apache_beam.testing.benchmarks.nexmark.queries</span> <span class="kn">import</span> <span class="n">nexmark_query_util</span> |
| <span class="kn">from</span> <span class="nn">apache_beam.testing.benchmarks.nexmark.queries.nexmark_query_util</span> <span class="kn">import</span> <span class="n">ResultNames</span> |
| <span class="kn">from</span> <span class="nn">apache_beam.transforms</span> <span class="kn">import</span> <span class="n">trigger</span> |
| <span class="kn">from</span> <span class="nn">apache_beam.transforms</span> <span class="kn">import</span> <span class="n">window</span> |
| |
| |
| <div class="viewcode-block" id="load"><a class="viewcode-back" href="../../../../../../apache_beam.testing.benchmarks.nexmark.queries.query11.html#apache_beam.testing.benchmarks.nexmark.queries.query11.load">[docs]</a><span class="k">def</span> <span class="nf">load</span><span class="p">(</span><span class="n">events</span><span class="p">,</span> <span class="n">metadata</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">pipeline_options</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> |
| |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="n">events</span> |
| <span class="c1"># filter to get only bids and then extract bidder id</span> |
| <span class="o">|</span> <span class="n">nexmark_query_util</span><span class="o">.</span><span class="n">JustBids</span><span class="p">()</span> |
| <span class="o">|</span> <span class="s1">'query11_extract_bidder'</span> <span class="o">>></span> <span class="n">beam</span><span class="o">.</span><span class="n">Map</span><span class="p">(</span><span class="k">lambda</span> <span class="n">bid</span><span class="p">:</span> <span class="n">bid</span><span class="o">.</span><span class="n">bidder</span><span class="p">)</span> |
| <span class="c1"># window auction and key by auctions' seller</span> |
| <span class="o">|</span> <span class="s1">'query11_session_window'</span> <span class="o">>></span> <span class="n">beam</span><span class="o">.</span><span class="n">WindowInto</span><span class="p">(</span> |
| <span class="n">window</span><span class="o">.</span><span class="n">Sessions</span><span class="p">(</span><span class="n">metadata</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'window_size_sec'</span><span class="p">)),</span> |
| <span class="n">trigger</span><span class="o">=</span><span class="n">trigger</span><span class="o">.</span><span class="n">AfterWatermark</span><span class="p">(</span> |
| <span class="n">early</span><span class="o">=</span><span class="n">trigger</span><span class="o">.</span><span class="n">AfterCount</span><span class="p">(</span><span class="n">metadata</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'max_log_events'</span><span class="p">))),</span> |
| <span class="n">accumulation_mode</span><span class="o">=</span><span class="n">trigger</span><span class="o">.</span><span class="n">AccumulationMode</span><span class="o">.</span><span class="n">DISCARDING</span><span class="p">,</span> |
| <span class="n">allowed_lateness</span><span class="o">=</span><span class="n">metadata</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'occasional_delay_sec'</span><span class="p">)</span> <span class="o">//</span> <span class="mi">2</span><span class="p">)</span> |
| <span class="c1"># count per bidder</span> |
| <span class="o">|</span> <span class="n">beam</span><span class="o">.</span><span class="n">combiners</span><span class="o">.</span><span class="n">Count</span><span class="o">.</span><span class="n">PerElement</span><span class="p">()</span> |
| <span class="o">|</span> <span class="n">beam</span><span class="o">.</span><span class="n">Map</span><span class="p">(</span> |
| <span class="k">lambda</span> <span class="n">bidder_count</span><span class="p">:</span> <span class="p">{</span> |
| <span class="n">ResultNames</span><span class="o">.</span><span class="n">BIDDER_ID</span><span class="p">:</span> <span class="n">bidder_count</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> |
| <span class="n">ResultNames</span><span class="o">.</span><span class="n">BID_COUNT</span><span class="p">:</span> <span class="n">bidder_count</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> |
| <span class="p">}))</span></div> |
| </pre></div> |
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