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| <h1>Source code for airflow.exceptions</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="c1">#</span> |
| <span class="c1"># Note: Any AirflowException raised is expected to cause the TaskInstance</span> |
| <span class="c1"># to be marked in an ERROR state</span> |
| <span class="sd">"""Exceptions used by Airflow"""</span> |
| |
| |
| <div class="viewcode-block" id="AirflowException"><a class="viewcode-back" href="../../_api/airflow/executors/index.html#airflow.executors.AirflowException">[docs]</a><span class="k">class</span> <span class="nc">AirflowException</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Base class for all Airflow's errors.</span> |
| <span class="sd"> Each custom exception should be derived from this class</span> |
| <span class="sd"> """</span> |
| <span class="n">status_code</span> <span class="o">=</span> <span class="mi">500</span></div> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowBadRequest</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when the application or server cannot handle the request"""</span> |
| <span class="n">status_code</span> <span class="o">=</span> <span class="mi">400</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowNotFoundException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when the requested object/resource is not available in the system"""</span> |
| <span class="n">status_code</span> <span class="o">=</span> <span class="mi">404</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowConfigException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when there is configuration problem"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowSensorTimeout</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when there is a timeout on sensor polling"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowRescheduleException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Raise when the task should be re-scheduled at a later time.</span> |
| |
| <span class="sd"> :param reschedule_date: The date when the task should be rescheduled</span> |
| <span class="sd"> :type reschedule_date: datetime.datetime</span> |
| <span class="sd"> """</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">reschedule_date</span><span class="p">):</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">reschedule_date</span> <span class="o">=</span> <span class="n">reschedule_date</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowTaskTimeout</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when the task execution times-out"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowWebServerTimeout</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when the web server times out"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowSkipException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when the task should be skipped"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">AirflowDagCycleException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when there is a cycle in Dag definition"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">DagNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span> |
| <span class="sd">"""Raise when a DAG is not available in the system"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">DagRunNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span> |
| <span class="sd">"""Raise when a DAG Run is not available in the system"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">DagRunAlreadyExists</span><span class="p">(</span><span class="n">AirflowBadRequest</span><span class="p">):</span> |
| <span class="sd">"""Raise when creating a DAG run for DAG which already has DAG run entry"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">DagFileExists</span><span class="p">(</span><span class="n">AirflowBadRequest</span><span class="p">):</span> |
| <span class="sd">"""Raise when a DAG ID is still in DagBag i.e., DAG file is in DAG folder"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">TaskNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span> |
| <span class="sd">"""Raise when a Task is not available in the system"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">TaskInstanceNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span> |
| <span class="sd">"""Raise when a Task Instance is not available in the system"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">PoolNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span> |
| <span class="sd">"""Raise when a Pool is not available in the system"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">NoAvailablePoolSlot</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when there is not enough slots in pool"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">DagConcurrencyLimitReached</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when DAG concurrency limit is reached"""</span> |
| |
| |
| <span class="k">class</span> <span class="nc">TaskConcurrencyLimitReached</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span> |
| <span class="sd">"""Raise when task concurrency limit is reached"""</span> |
| </pre></div> |
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