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Posted to commits@airflow.apache.org by ka...@apache.org on 2018/08/27 16:26:23 UTC
[03/51] [partial] incubator-airflow-site git commit: 1.10.0
http://git-wip-us.apache.org/repos/asf/incubator-airflow-site/blob/11437c14/_modules/airflow/sensors/named_hive_partition_sensor.html
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+ <h1>Source code for airflow.sensors.named_hive_partition_sensor</h1><div class="highlight"><pre>
+<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
+<span class="c1">#</span>
+<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
+<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
+<span class="c1"># distributed with this work for additional information</span>
+<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
+<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
+<span class="c1"># "License"); you may not use this file except in compliance</span>
+<span class="c1"># with 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,</span>
+<span class="c1"># software distributed under the License is distributed on an</span>
+<span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
+<span class="c1"># KIND, either express or implied. See the License for the</span>
+<span class="c1"># specific language governing permissions and limitations</span>
+<span class="c1"># under the License.</span>
+
+<span class="kn">from</span> <span class="nn">past.builtins</span> <span class="k">import</span> <span class="n">basestring</span>
+
+<span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="NamedHivePartitionSensor"><a class="viewcode-back" href="../../../code.html#airflow.sensors.named_hive_partition_sensor.NamedHivePartitionSensor">[docs]</a><span class="k">class</span> <span class="nc">NamedHivePartitionSensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Waits for a set of partitions to show up in Hive.</span>
+
+<span class="sd"> :param partition_names: List of fully qualified names of the</span>
+<span class="sd"> partitions to wait for. A fully qualified name is of the</span>
+<span class="sd"> form ``schema.table/pk1=pv1/pk2=pv2``, for example,</span>
+<span class="sd"> default.users/ds=2016-01-01. This is passed as is to the metastore</span>
+<span class="sd"> Thrift client ``get_partitions_by_name`` method. Note that</span>
+<span class="sd"> you cannot use logical or comparison operators as in</span>
+<span class="sd"> HivePartitionSensor.</span>
+<span class="sd"> :type partition_names: list of strings</span>
+<span class="sd"> :param metastore_conn_id: reference to the metastore thrift service</span>
+<span class="sd"> connection id</span>
+<span class="sd"> :type metastore_conn_id: str</span>
+<span class="sd"> """</span>
+
+ <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'partition_names'</span><span class="p">,)</span>
+ <span class="n">ui_color</span> <span class="o">=</span> <span class="s1">'#8d99ae'</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span>
+ <span class="n">partition_names</span><span class="p">,</span>
+ <span class="n">metastore_conn_id</span><span class="o">=</span><span class="s1">'metastore_default'</span><span class="p">,</span>
+ <span class="n">poke_interval</span><span class="o">=</span><span class="mi">60</span> <span class="o">*</span> <span class="mi">3</span><span class="p">,</span>
+ <span class="n">hook</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
+ <span class="o">*</span><span class="n">args</span><span class="p">,</span>
+ <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">NamedHivePartitionSensor</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span>
+ <span class="n">poke_interval</span><span class="o">=</span><span class="n">poke_interval</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+
+ <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">partition_names</span><span class="p">,</span> <span class="n">basestring</span><span class="p">):</span>
+ <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s1">'partition_names must be an array of strings'</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">metastore_conn_id</span> <span class="o">=</span> <span class="n">metastore_conn_id</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">partition_names</span> <span class="o">=</span> <span class="n">partition_names</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">hook</span> <span class="o">=</span> <span class="n">hook</span>
+ <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">hook</span> <span class="ow">and</span> <span class="n">metastore_conn_id</span> <span class="o">!=</span> <span class="s1">'metastore_default'</span><span class="p">:</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s1">'A hook was passed but a non default'</span>
+ <span class="s1">'metastore_conn_id='</span>
+ <span class="s1">'</span><span class="si">{}</span><span class="s1"> was used'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">metastore_conn_id</span><span class="p">))</span>
+
+ <span class="nd">@staticmethod</span>
+ <span class="k">def</span> <span class="nf">parse_partition_name</span><span class="p">(</span><span class="n">partition</span><span class="p">):</span>
+ <span class="n">first_split</span> <span class="o">=</span> <span class="n">partition</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'.'</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
+ <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">first_split</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
+ <span class="n">schema</span> <span class="o">=</span> <span class="s1">'default'</span>
+ <span class="n">table_partition</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">first_split</span><span class="p">)</span> <span class="c1"># poor man first</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="n">schema</span><span class="p">,</span> <span class="n">table_partition</span> <span class="o">=</span> <span class="n">first_split</span>
+ <span class="n">second_split</span> <span class="o">=</span> <span class="n">table_partition</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'/'</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
+ <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">second_split</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
+ <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'Could not parse '</span> <span class="o">+</span> <span class="n">partition</span> <span class="o">+</span>
+ <span class="s1">'into table, partition'</span><span class="p">)</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="n">table</span><span class="p">,</span> <span class="n">partition</span> <span class="o">=</span> <span class="n">second_split</span>
+ <span class="k">return</span> <span class="n">schema</span><span class="p">,</span> <span class="n">table</span><span class="p">,</span> <span class="n">partition</span>
+
+ <span class="k">def</span> <span class="nf">poke_partition</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">partition</span><span class="p">):</span>
+ <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">hook</span><span class="p">:</span>
+ <span class="kn">from</span> <span class="nn">airflow.hooks.hive_hooks</span> <span class="k">import</span> <span class="n">HiveMetastoreHook</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">hook</span> <span class="o">=</span> <span class="n">HiveMetastoreHook</span><span class="p">(</span>
+ <span class="n">metastore_conn_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">metastore_conn_id</span><span class="p">)</span>
+
+ <span class="n">schema</span><span class="p">,</span> <span class="n">table</span><span class="p">,</span> <span class="n">partition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">parse_partition_name</span><span class="p">(</span><span class="n">partition</span><span class="p">)</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span>
+ <span class="s1">'Poking for </span><span class="si">{schema}</span><span class="s1">.</span><span class="si">{table}</span><span class="s1">/</span><span class="si">{partition}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="o">**</span><span class="nb">locals</span><span class="p">())</span>
+ <span class="p">)</span>
+ <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">hook</span><span class="o">.</span><span class="n">check_for_named_partition</span><span class="p">(</span>
+ <span class="n">schema</span><span class="p">,</span> <span class="n">table</span><span class="p">,</span> <span class="n">partition</span><span class="p">)</span>
+
+ <span class="k">def</span> <span class="nf">poke</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">partition_names</span> <span class="o">=</span> <span class="p">[</span>
+ <span class="n">partition_name</span> <span class="k">for</span> <span class="n">partition_name</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">partition_names</span>
+ <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">poke_partition</span><span class="p">(</span><span class="n">partition_name</span><span class="p">)</span>
+ <span class="p">]</span>
+ <span class="k">return</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">partition_names</span></div>
+</pre></div>
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http://git-wip-us.apache.org/repos/asf/incubator-airflow-site/blob/11437c14/_modules/airflow/sensors/s3_key_sensor.html
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diff --git a/_modules/airflow/sensors/s3_key_sensor.html b/_modules/airflow/sensors/s3_key_sensor.html
new file mode 100644
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@@ -0,0 +1,316 @@
+
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+ <h1>Source code for airflow.sensors.s3_key_sensor</h1><div class="highlight"><pre>
+<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
+<span class="c1">#</span>
+<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
+<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
+<span class="c1"># distributed with this work for additional information</span>
+<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
+<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
+<span class="c1"># "License"); you may not use this file except in compliance</span>
+<span class="c1"># with 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,</span>
+<span class="c1"># software distributed under the License is distributed on an</span>
+<span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
+<span class="c1"># KIND, either express or implied. See the License for the</span>
+<span class="c1"># specific language governing permissions and limitations</span>
+<span class="c1"># under the License.</span>
+
+
+<span class="kn">from</span> <span class="nn">urllib.parse</span> <span class="k">import</span> <span class="n">urlparse</span>
+
+<span class="kn">from</span> <span class="nn">airflow.exceptions</span> <span class="k">import</span> <span class="n">AirflowException</span>
+<span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="S3KeySensor"><a class="viewcode-back" href="../../../code.html#airflow.sensors.s3_key_sensor.S3KeySensor">[docs]</a><span class="k">class</span> <span class="nc">S3KeySensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Waits for a key (a file-like instance on S3) to be present in a S3 bucket.</span>
+<span class="sd"> S3 being a key/value it does not support folders. The path is just a key</span>
+<span class="sd"> a resource.</span>
+
+<span class="sd"> :param bucket_key: The key being waited on. Supports full s3:// style url</span>
+<span class="sd"> or relative path from root level.</span>
+<span class="sd"> :type bucket_key: str</span>
+<span class="sd"> :param bucket_name: Name of the S3 bucket</span>
+<span class="sd"> :type bucket_name: str</span>
+<span class="sd"> :param wildcard_match: whether the bucket_key should be interpreted as a</span>
+<span class="sd"> Unix wildcard pattern</span>
+<span class="sd"> :type wildcard_match: bool</span>
+<span class="sd"> :param aws_conn_id: a reference to the s3 connection</span>
+<span class="sd"> :type aws_conn_id: str</span>
+<span class="sd"> """</span>
+ <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'bucket_key'</span><span class="p">,</span> <span class="s1">'bucket_name'</span><span class="p">)</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span>
+ <span class="n">bucket_key</span><span class="p">,</span>
+ <span class="n">bucket_name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
+ <span class="n">wildcard_match</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
+ <span class="n">aws_conn_id</span><span class="o">=</span><span class="s1">'aws_default'</span><span class="p">,</span>
+ <span class="o">*</span><span class="n">args</span><span class="p">,</span>
+ <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">S3KeySensor</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+ <span class="c1"># Parse</span>
+ <span class="k">if</span> <span class="n">bucket_name</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
+ <span class="n">parsed_url</span> <span class="o">=</span> <span class="n">urlparse</span><span class="p">(</span><span class="n">bucket_key</span><span class="p">)</span>
+ <span class="k">if</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">netloc</span> <span class="o">==</span> <span class="s1">''</span><span class="p">:</span>
+ <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s1">'Please provide a bucket_name'</span><span class="p">)</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="n">bucket_name</span> <span class="o">=</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">netloc</span>
+ <span class="k">if</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">path</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s1">'/'</span><span class="p">:</span>
+ <span class="n">bucket_key</span> <span class="o">=</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">path</span><span class="p">[</span><span class="mi">1</span><span class="p">:]</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="n">bucket_key</span> <span class="o">=</span> <span class="n">parsed_url</span><span class="o">.</span><span class="n">path</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">bucket_name</span> <span class="o">=</span> <span class="n">bucket_name</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">bucket_key</span> <span class="o">=</span> <span class="n">bucket_key</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">wildcard_match</span> <span class="o">=</span> <span class="n">wildcard_match</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span> <span class="o">=</span> <span class="n">aws_conn_id</span>
+
+ <span class="k">def</span> <span class="nf">poke</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="kn">from</span> <span class="nn">airflow.hooks.S3_hook</span> <span class="k">import</span> <span class="n">S3Hook</span>
+ <span class="n">hook</span> <span class="o">=</span> <span class="n">S3Hook</span><span class="p">(</span><span class="n">aws_conn_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span><span class="p">)</span>
+ <span class="n">full_url</span> <span class="o">=</span> <span class="s2">"s3://"</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">bucket_name</span> <span class="o">+</span> <span class="s2">"/"</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">bucket_key</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Poking for key : </span><span class="si">{full_url}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="o">**</span><span class="nb">locals</span><span class="p">()))</span>
+ <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">wildcard_match</span><span class="p">:</span>
+ <span class="k">return</span> <span class="n">hook</span><span class="o">.</span><span class="n">check_for_wildcard_key</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">bucket_key</span><span class="p">,</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">bucket_name</span><span class="p">)</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="k">return</span> <span class="n">hook</span><span class="o">.</span><span class="n">check_for_key</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">bucket_key</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">bucket_name</span><span class="p">)</span></div>
+</pre></div>
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----------------------------------------------------------------------
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+ <h1>Source code for airflow.sensors.s3_prefix_sensor</h1><div class="highlight"><pre>
+<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
+<span class="c1">#</span>
+<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
+<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
+<span class="c1"># distributed with this work for additional information</span>
+<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
+<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
+<span class="c1"># "License"); you may not use this file except in compliance</span>
+<span class="c1"># with 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,</span>
+<span class="c1"># software distributed under the License is distributed on an</span>
+<span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
+<span class="c1"># KIND, either express or implied. See the License for the</span>
+<span class="c1"># specific language governing permissions and limitations</span>
+<span class="c1"># under the License.</span>
+
+<span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</span>
+
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="S3PrefixSensor"><a class="viewcode-back" href="../../../code.html#airflow.sensors.s3_prefix_sensor.S3PrefixSensor">[docs]</a><span class="k">class</span> <span class="nc">S3PrefixSensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Waits for a prefix to exist. A prefix is the first part of a key,</span>
+<span class="sd"> thus enabling checking of constructs similar to glob airfl* or</span>
+<span class="sd"> SQL LIKE 'airfl%'. There is the possibility to precise a delimiter to</span>
+<span class="sd"> indicate the hierarchy or keys, meaning that the match will stop at that</span>
+<span class="sd"> delimiter. Current code accepts sane delimiters, i.e. characters that</span>
+<span class="sd"> are NOT special characters in the Python regex engine.</span>
+
+<span class="sd"> :param bucket_name: Name of the S3 bucket</span>
+<span class="sd"> :type bucket_name: str</span>
+<span class="sd"> :param prefix: The prefix being waited on. Relative path from bucket root level.</span>
+<span class="sd"> :type prefix: str</span>
+<span class="sd"> :param delimiter: The delimiter intended to show hierarchy.</span>
+<span class="sd"> Defaults to '/'.</span>
+<span class="sd"> :type delimiter: str</span>
+<span class="sd"> """</span>
+ <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'prefix'</span><span class="p">,</span> <span class="s1">'bucket_name'</span><span class="p">)</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span>
+ <span class="n">bucket_name</span><span class="p">,</span>
+ <span class="n">prefix</span><span class="p">,</span>
+ <span class="n">delimiter</span><span class="o">=</span><span class="s1">'/'</span><span class="p">,</span>
+ <span class="n">aws_conn_id</span><span class="o">=</span><span class="s1">'aws_default'</span><span class="p">,</span>
+ <span class="o">*</span><span class="n">args</span><span class="p">,</span>
+ <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">S3PrefixSensor</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+ <span class="c1"># Parse</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">bucket_name</span> <span class="o">=</span> <span class="n">bucket_name</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">prefix</span> <span class="o">=</span> <span class="n">prefix</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">delimiter</span> <span class="o">=</span> <span class="n">delimiter</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">full_url</span> <span class="o">=</span> <span class="s2">"s3://"</span> <span class="o">+</span> <span class="n">bucket_name</span> <span class="o">+</span> <span class="s1">'/'</span> <span class="o">+</span> <span class="n">prefix</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span> <span class="o">=</span> <span class="n">aws_conn_id</span>
+
+ <span class="k">def</span> <span class="nf">poke</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Poking for prefix : </span><span class="si">{self.prefix}</span><span class="se">\n</span><span class="s1">'</span>
+ <span class="s1">'in bucket s3://</span><span class="si">{self.bucket_name}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="o">**</span><span class="nb">locals</span><span class="p">()))</span>
+ <span class="kn">from</span> <span class="nn">airflow.hooks.S3_hook</span> <span class="k">import</span> <span class="n">S3Hook</span>
+ <span class="n">hook</span> <span class="o">=</span> <span class="n">S3Hook</span><span class="p">(</span><span class="n">aws_conn_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">aws_conn_id</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">hook</span><span class="o">.</span><span class="n">check_for_prefix</span><span class="p">(</span>
+ <span class="n">prefix</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">prefix</span><span class="p">,</span>
+ <span class="n">delimiter</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">delimiter</span><span class="p">,</span>
+ <span class="n">bucket_name</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">bucket_name</span><span class="p">)</span></div>
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----------------------------------------------------------------------
diff --git a/_modules/airflow/sensors/sql_sensor.html b/_modules/airflow/sensors/sql_sensor.html
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+
+ <h1>Source code for airflow.sensors.sql_sensor</h1><div class="highlight"><pre>
+<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
+<span class="c1">#</span>
+<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
+<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
+<span class="c1"># distributed with this work for additional information</span>
+<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
+<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
+<span class="c1"># "License"); you may not use this file except in compliance</span>
+<span class="c1"># with 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,</span>
+<span class="c1"># software distributed under the License is distributed on an</span>
+<span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
+<span class="c1"># KIND, either express or implied. See the License for the</span>
+<span class="c1"># specific language governing permissions and limitations</span>
+<span class="c1"># under the License.</span>
+
+<span class="kn">from</span> <span class="nn">builtins</span> <span class="k">import</span> <span class="nb">str</span>
+
+<span class="kn">from</span> <span class="nn">airflow.hooks.base_hook</span> <span class="k">import</span> <span class="n">BaseHook</span>
+<span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="SqlSensor"><a class="viewcode-back" href="../../../code.html#airflow.sensors.sql_sensor.SqlSensor">[docs]</a><span class="k">class</span> <span class="nc">SqlSensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Runs a sql statement until a criteria is met. It will keep trying while</span>
+<span class="sd"> sql returns no row, or if the first cell in (0, '0', '').</span>
+
+<span class="sd"> :param conn_id: The connection to run the sensor against</span>
+<span class="sd"> :type conn_id: string</span>
+<span class="sd"> :param sql: The sql to run. To pass, it needs to return at least one cell</span>
+<span class="sd"> that contains a non-zero / empty string value.</span>
+<span class="sd"> """</span>
+ <span class="n">template_fields</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'sql'</span><span class="p">,)</span>
+ <span class="n">template_ext</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'.hql'</span><span class="p">,</span> <span class="s1">'.sql'</span><span class="p">,)</span>
+ <span class="n">ui_color</span> <span class="o">=</span> <span class="s1">'#7c7287'</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">conn_id</span><span class="p">,</span> <span class="n">sql</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">sql</span> <span class="o">=</span> <span class="n">sql</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">conn_id</span> <span class="o">=</span> <span class="n">conn_id</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">SqlSensor</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+
+ <span class="k">def</span> <span class="nf">poke</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="n">hook</span> <span class="o">=</span> <span class="n">BaseHook</span><span class="o">.</span><span class="n">get_connection</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">conn_id</span><span class="p">)</span><span class="o">.</span><span class="n">get_hook</span><span class="p">()</span>
+
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Poking: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">)</span>
+ <span class="n">records</span> <span class="o">=</span> <span class="n">hook</span><span class="o">.</span><span class="n">get_records</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">)</span>
+ <span class="k">if</span> <span class="ow">not</span> <span class="n">records</span><span class="p">:</span>
+ <span class="k">return</span> <span class="kc">False</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="k">if</span> <span class="nb">str</span><span class="p">(</span><span class="n">records</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">])</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'0'</span><span class="p">,</span> <span class="s1">''</span><span class="p">,):</span>
+ <span class="k">return</span> <span class="kc">False</span>
+ <span class="k">else</span><span class="p">:</span>
+ <span class="k">return</span> <span class="kc">True</span></div>
+</pre></div>
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----------------------------------------------------------------------
diff --git a/_modules/airflow/sensors/time_delta_sensor.html b/_modules/airflow/sensors/time_delta_sensor.html
new file mode 100644
index 0000000..270d60c
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+ <h1>Source code for airflow.sensors.time_delta_sensor</h1><div class="highlight"><pre>
+<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
+<span class="c1">#</span>
+<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
+<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
+<span class="c1"># distributed with this work for additional information</span>
+<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
+<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
+<span class="c1"># "License"); you may not use this file except in compliance</span>
+<span class="c1"># with 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,</span>
+<span class="c1"># software distributed under the License is distributed on an</span>
+<span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
+<span class="c1"># KIND, either express or implied. See the License for the</span>
+<span class="c1"># specific language governing permissions and limitations</span>
+<span class="c1"># under the License.</span>
+
+<span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils</span> <span class="k">import</span> <span class="n">timezone</span>
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="TimeDeltaSensor"><a class="viewcode-back" href="../../../code.html#airflow.sensors.time_delta_sensor.TimeDeltaSensor">[docs]</a><span class="k">class</span> <span class="nc">TimeDeltaSensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Waits for a timedelta after the task's execution_date + schedule_interval.</span>
+<span class="sd"> In Airflow, the daily task stamped with ``execution_date``</span>
+<span class="sd"> 2016-01-01 can only start running on 2016-01-02. The timedelta here</span>
+<span class="sd"> represents the time after the execution period has closed.</span>
+
+<span class="sd"> :param delta: time length to wait after execution_date before succeeding</span>
+<span class="sd"> :type delta: datetime.timedelta</span>
+<span class="sd"> """</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">delta</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">TimeDeltaSensor</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">delta</span> <span class="o">=</span> <span class="n">delta</span>
+
+ <span class="k">def</span> <span class="nf">poke</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="n">dag</span> <span class="o">=</span> <span class="n">context</span><span class="p">[</span><span class="s1">'dag'</span><span class="p">]</span>
+ <span class="n">target_dttm</span> <span class="o">=</span> <span class="n">dag</span><span class="o">.</span><span class="n">following_schedule</span><span class="p">(</span><span class="n">context</span><span class="p">[</span><span class="s1">'execution_date'</span><span class="p">])</span>
+ <span class="n">target_dttm</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">delta</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Checking if the time (</span><span class="si">%s</span><span class="s1">) has come'</span><span class="p">,</span> <span class="n">target_dttm</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span> <span class="o">></span> <span class="n">target_dttm</span></div>
+</pre></div>
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+
+ <h1>Source code for airflow.sensors.time_sensor</h1><div class="highlight"><pre>
+<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
+<span class="c1">#</span>
+<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
+<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
+<span class="c1"># distributed with this work for additional information</span>
+<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
+<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
+<span class="c1"># "License"); you may not use this file except in compliance</span>
+<span class="c1"># with 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,</span>
+<span class="c1"># software distributed under the License is distributed on an</span>
+<span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
+<span class="c1"># KIND, either express or implied. See the License for the</span>
+<span class="c1"># specific language governing permissions and limitations</span>
+<span class="c1"># under the License.</span>
+
+<span class="kn">from</span> <span class="nn">airflow.sensors.base_sensor_operator</span> <span class="k">import</span> <span class="n">BaseSensorOperator</span>
+<span class="kn">from</span> <span class="nn">airflow.utils</span> <span class="k">import</span> <span class="n">timezone</span>
+<span class="kn">from</span> <span class="nn">airflow.utils.decorators</span> <span class="k">import</span> <span class="n">apply_defaults</span>
+
+
+<div class="viewcode-block" id="TimeSensor"><a class="viewcode-back" href="../../../code.html#airflow.sensors.time_sensor.TimeSensor">[docs]</a><span class="k">class</span> <span class="nc">TimeSensor</span><span class="p">(</span><span class="n">BaseSensorOperator</span><span class="p">):</span>
+ <span class="sd">"""</span>
+<span class="sd"> Waits until the specified time of the day.</span>
+
+<span class="sd"> :param target_time: time after which the job succeeds</span>
+<span class="sd"> :type target_time: datetime.time</span>
+<span class="sd"> """</span>
+
+ <span class="nd">@apply_defaults</span>
+ <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">target_time</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+ <span class="nb">super</span><span class="p">(</span><span class="n">TimeSensor</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">target_time</span> <span class="o">=</span> <span class="n">target_time</span>
+
+ <span class="k">def</span> <span class="nf">poke</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
+ <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Checking if the time (</span><span class="si">%s</span><span class="s1">) has come'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">target_time</span><span class="p">)</span>
+ <span class="k">return</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span><span class="o">.</span><span class="n">time</span><span class="p">()</span> <span class="o">></span> <span class="bp">self</span><span class="o">.</span><span class="n">target_time</span></div>
+</pre></div>
+
+ </div>
+ <div class="articleComments">
+
+ </div>
+ </div>
+ <footer>
+
+
+ <hr/>
+
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+ <p>
+
+ </p>
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+ Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
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