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| <h1>Source code for apache_beam.runners.interactive.display.interactive_pipeline_graph</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">"""Helper to render pipeline graph in IPython when running interactively.</span> |
| |
| <span class="sd">This module is experimental. No backwards-compatibility guarantees.</span> |
| <span class="sd">"""</span> |
| |
| <span class="c1"># pytype: skip-file</span> |
| |
| <span class="kn">import</span> <span class="nn">re</span> |
| |
| <span class="kn">from</span> <span class="nn">apache_beam.runners.interactive.display</span> <span class="kn">import</span> <span class="n">pipeline_graph</span> |
| |
| |
| <div class="viewcode-block" id="nice_str"><a class="viewcode-back" href="../../../../../apache_beam.runners.interactive.display.interactive_pipeline_graph.html#apache_beam.runners.interactive.display.interactive_pipeline_graph.nice_str">[docs]</a><span class="k">def</span> <span class="nf">nice_str</span><span class="p">(</span><span class="n">o</span><span class="p">):</span> |
| <span class="n">s</span> <span class="o">=</span> <span class="nb">repr</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> |
| <span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'"'</span><span class="p">,</span> <span class="s2">"'"</span><span class="p">)</span> |
| <span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'</span><span class="se">\\</span><span class="s1">'</span><span class="p">,</span> <span class="s1">'|'</span><span class="p">)</span> |
| <span class="n">s</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="sa">r</span><span class="s1">'[^\x20-\x7F]'</span><span class="p">,</span> <span class="s1">' '</span><span class="p">,</span> <span class="n">s</span><span class="p">)</span> |
| <span class="k">assert</span> <span class="s1">'"'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">s</span> |
| <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">s</span><span class="p">)</span> <span class="o">></span> <span class="mi">35</span><span class="p">:</span> |
| <span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="p">[:</span><span class="mi">35</span><span class="p">]</span> <span class="o">+</span> <span class="s1">'...'</span> |
| <span class="k">return</span> <span class="n">s</span></div> |
| |
| |
| <div class="viewcode-block" id="format_sample"><a class="viewcode-back" href="../../../../../apache_beam.runners.interactive.display.interactive_pipeline_graph.html#apache_beam.runners.interactive.display.interactive_pipeline_graph.format_sample">[docs]</a><span class="k">def</span> <span class="nf">format_sample</span><span class="p">(</span><span class="n">contents</span><span class="p">,</span> <span class="n">count</span><span class="o">=</span><span class="mi">1000</span><span class="p">):</span> |
| <span class="n">contents</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">contents</span><span class="p">)</span> |
| <span class="n">elems</span> <span class="o">=</span> <span class="s1">', '</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">nice_str</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> <span class="k">for</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">contents</span><span class="p">[:</span><span class="n">count</span><span class="p">]])</span> |
| <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">contents</span><span class="p">)</span> <span class="o">></span> <span class="n">count</span><span class="p">:</span> |
| <span class="n">elems</span> <span class="o">+=</span> <span class="s1">', ...'</span> |
| <span class="k">assert</span> <span class="s1">'"'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">elems</span> |
| <span class="k">return</span> <span class="s1">'{</span><span class="si">%s</span><span class="s1">}'</span> <span class="o">%</span> <span class="n">elems</span></div> |
| |
| |
| <div class="viewcode-block" id="InteractivePipelineGraph"><a class="viewcode-back" href="../../../../../apache_beam.runners.interactive.display.interactive_pipeline_graph.html#apache_beam.runners.interactive.display.interactive_pipeline_graph.InteractivePipelineGraph">[docs]</a><span class="k">class</span> <span class="nc">InteractivePipelineGraph</span><span class="p">(</span><span class="n">pipeline_graph</span><span class="o">.</span><span class="n">PipelineGraph</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Creates the DOT representation of an interactive pipeline. Thread-safe."""</span> |
| <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">pipeline</span><span class="p">,</span> |
| <span class="n">required_transforms</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> |
| <span class="n">referenced_pcollections</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> |
| <span class="n">cached_pcollections</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Constructor of PipelineGraph.</span> |
| |
| <span class="sd"> Args:</span> |
| <span class="sd"> pipeline: (Pipeline proto) or (Pipeline) pipeline to be rendered.</span> |
| <span class="sd"> required_transforms: (list/set of str) ID of top level PTransforms that</span> |
| <span class="sd"> lead to visible results.</span> |
| <span class="sd"> referenced_pcollections: (list/set of str) ID of PCollections that are</span> |
| <span class="sd"> referenced by top level PTransforms executed (i.e.</span> |
| <span class="sd"> required_transforms)</span> |
| <span class="sd"> cached_pcollections: (set of str) a set of PCollection IDs of those whose</span> |
| <span class="sd"> cached results are used in the execution.</span> |
| <span class="sd"> """</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_required_transforms</span> <span class="o">=</span> <span class="n">required_transforms</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_referenced_pcollections</span> <span class="o">=</span> <span class="n">referenced_pcollections</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_cached_pcollections</span> <span class="o">=</span> <span class="n">cached_pcollections</span> <span class="ow">or</span> <span class="nb">set</span><span class="p">()</span> |
| |
| <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span> |
| <span class="n">pipeline</span><span class="o">=</span><span class="n">pipeline</span><span class="p">,</span> |
| <span class="n">default_vertex_attrs</span><span class="o">=</span><span class="p">{</span> |
| <span class="s1">'color'</span><span class="p">:</span> <span class="s1">'gray'</span><span class="p">,</span> <span class="s1">'fontcolor'</span><span class="p">:</span> <span class="s1">'gray'</span> |
| <span class="p">},</span> |
| <span class="n">default_edge_attrs</span><span class="o">=</span><span class="p">{</span><span class="s1">'color'</span><span class="p">:</span> <span class="s1">'gray'</span><span class="p">})</span> |
| |
| <span class="n">transform_updates</span><span class="p">,</span> <span class="n">pcollection_updates</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_generate_graph_update_dicts</span><span class="p">()</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_update_graph</span><span class="p">(</span><span class="n">transform_updates</span><span class="p">,</span> <span class="n">pcollection_updates</span><span class="p">)</span> |
| |
| <div class="viewcode-block" id="InteractivePipelineGraph.update_pcollection_stats"><a class="viewcode-back" href="../../../../../apache_beam.runners.interactive.display.interactive_pipeline_graph.html#apache_beam.runners.interactive.display.interactive_pipeline_graph.InteractivePipelineGraph.update_pcollection_stats">[docs]</a> <span class="k">def</span> <span class="nf">update_pcollection_stats</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pcollection_stats</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Updates PCollection stats.</span> |
| |
| <span class="sd"> Args:</span> |
| <span class="sd"> pcollection_stats: (dict of dict) maps PCollection IDs to informations. In</span> |
| <span class="sd"> particular, we only care about the field 'sample' which should be a</span> |
| <span class="sd"> the PCollection result in as a list.</span> |
| <span class="sd"> """</span> |
| <span class="n">edge_dict</span> <span class="o">=</span> <span class="p">{}</span> |
| <span class="k">for</span> <span class="n">pcoll_id</span><span class="p">,</span> <span class="n">stats</span> <span class="ow">in</span> <span class="n">pcollection_stats</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> |
| <span class="n">attrs</span> <span class="o">=</span> <span class="p">{}</span> |
| <span class="n">pcoll_list</span> <span class="o">=</span> <span class="n">stats</span><span class="p">[</span><span class="s1">'sample'</span><span class="p">]</span> |
| <span class="k">if</span> <span class="n">pcoll_list</span><span class="p">:</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'label'</span><span class="p">]</span> <span class="o">=</span> <span class="n">format_sample</span><span class="p">(</span><span class="n">pcoll_list</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'labeltooltip'</span><span class="p">]</span> <span class="o">=</span> <span class="n">format_sample</span><span class="p">(</span><span class="n">pcoll_list</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'label'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'?'</span> |
| <span class="n">edge_dict</span><span class="p">[</span><span class="n">pcoll_id</span><span class="p">]</span> <span class="o">=</span> <span class="n">attrs</span> |
| |
| <span class="bp">self</span><span class="o">.</span><span class="n">_update_graph</span><span class="p">(</span><span class="n">edge_dict</span><span class="o">=</span><span class="n">edge_dict</span><span class="p">)</span></div> |
| |
| <span class="k">def</span> <span class="nf">_generate_graph_update_dicts</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Generate updates specific to interactive pipeline.</span> |
| |
| <span class="sd"> Returns:</span> |
| <span class="sd"> vertex_dict: (Dict[str, Dict[str, str]]) maps vertex name to attributes</span> |
| <span class="sd"> edge_dict: (Dict[str, Dict[str, str]]) maps vertex name to attributes</span> |
| <span class="sd"> """</span> |
| <span class="n">transform_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="c1"># maps PTransform IDs to properties</span> |
| <span class="n">pcoll_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="c1"># maps PCollection IDs to properties</span> |
| |
| <span class="k">for</span> <span class="n">transform_id</span><span class="p">,</span> <span class="n">transform_proto</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_top_level_transforms</span><span class="p">():</span> |
| <span class="n">transform_dict</span><span class="p">[</span><span class="n">transform_proto</span><span class="o">.</span><span class="n">unique_name</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span> |
| <span class="s1">'required'</span><span class="p">:</span> <span class="n">transform_id</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_required_transforms</span> |
| <span class="p">}</span> |
| |
| <span class="k">for</span> <span class="n">pcoll_id</span> <span class="ow">in</span> <span class="n">transform_proto</span><span class="o">.</span><span class="n">outputs</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> |
| <span class="n">pcoll_dict</span><span class="p">[</span><span class="n">pcoll_id</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span> |
| <span class="s1">'cached'</span><span class="p">:</span> <span class="n">pcoll_id</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cached_pcollections</span><span class="p">,</span> |
| <span class="s1">'referenced'</span><span class="p">:</span> <span class="n">pcoll_id</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_referenced_pcollections</span> |
| <span class="p">}</span> |
| |
| <span class="k">def</span> <span class="nf">vertex_properties_to_attributes</span><span class="p">(</span><span class="n">vertex</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Converts PCollection properties to DOT vertex attributes."""</span> |
| <span class="n">attrs</span> <span class="o">=</span> <span class="p">{}</span> |
| <span class="k">if</span> <span class="s1">'leaf'</span> <span class="ow">in</span> <span class="n">vertex</span><span class="p">:</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'style'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'invis'</span> |
| <span class="k">elif</span> <span class="n">vertex</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'required'</span><span class="p">):</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'color'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'blue'</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'fontcolor'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'blue'</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'color'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'grey'</span> |
| <span class="k">return</span> <span class="n">attrs</span> |
| |
| <span class="k">def</span> <span class="nf">edge_properties_to_attributes</span><span class="p">(</span><span class="n">edge</span><span class="p">):</span> |
| <span class="w"> </span><span class="sd">"""Converts PTransform properties to DOT edge attributes."""</span> |
| <span class="n">attrs</span> <span class="o">=</span> <span class="p">{}</span> |
| <span class="k">if</span> <span class="n">edge</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'cached'</span><span class="p">):</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'color'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'red'</span> |
| <span class="k">elif</span> <span class="n">edge</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'referenced'</span><span class="p">):</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'color'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'black'</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">attrs</span><span class="p">[</span><span class="s1">'color'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'grey'</span> |
| <span class="k">return</span> <span class="n">attrs</span> |
| |
| <span class="n">vertex_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="c1"># maps vertex names to attributes</span> |
| <span class="n">edge_dict</span> <span class="o">=</span> <span class="p">{}</span> <span class="c1"># maps edge names to attributes</span> |
| |
| <span class="k">for</span> <span class="n">transform_name</span><span class="p">,</span> <span class="n">transform_properties</span> <span class="ow">in</span> <span class="n">transform_dict</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> |
| <span class="n">vertex_dict</span><span class="p">[</span><span class="n">transform_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">vertex_properties_to_attributes</span><span class="p">(</span> |
| <span class="n">transform_properties</span><span class="p">)</span> |
| |
| <span class="k">for</span> <span class="n">pcoll_id</span><span class="p">,</span> <span class="n">pcoll_properties</span> <span class="ow">in</span> <span class="n">pcoll_dict</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> |
| <span class="n">edge_dict</span><span class="p">[</span><span class="n">pcoll_id</span><span class="p">]</span> <span class="o">=</span> <span class="n">edge_properties_to_attributes</span><span class="p">(</span><span class="n">pcoll_properties</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">vertex_dict</span><span class="p">,</span> <span class="n">edge_dict</span></div> |
| </pre></div> |
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