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<h1>Source code for grpc_status.rpc_status</h1><div class="highlight"><pre>
<span></span><span class="c1"># Copyright 2018 The gRPC Authors</span>
<span class="c1">#</span>
<span class="c1"># Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span>
<span class="c1"># you may not use this file except in compliance with the License.</span>
<span class="c1"># 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 &quot;AS IS&quot; 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="sd">&quot;&quot;&quot;Reference implementation for status mapping in gRPC Python.&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">collections</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">from</span> <span class="nn">google.rpc</span> <span class="kn">import</span> <span class="n">status_pb2</span>
<span class="kn">import</span> <span class="nn">grpc</span>
<span class="kn">from</span> <span class="nn">._common</span> <span class="kn">import</span> <span class="n">GRPC_DETAILS_METADATA_KEY</span>
<span class="kn">from</span> <span class="nn">._common</span> <span class="kn">import</span> <span class="n">code_to_grpc_status_code</span>
<span class="k">class</span> <span class="nc">_Status</span><span class="p">(</span>
<span class="n">collections</span><span class="o">.</span><span class="n">namedtuple</span><span class="p">(</span><span class="s2">&quot;_Status&quot;</span><span class="p">,</span> <span class="p">(</span><span class="s2">&quot;code&quot;</span><span class="p">,</span> <span class="s2">&quot;details&quot;</span><span class="p">,</span> <span class="s2">&quot;trailing_metadata&quot;</span><span class="p">)),</span>
<span class="n">grpc</span><span class="o">.</span><span class="n">Status</span><span class="p">,</span>
<span class="p">):</span>
<span class="k">pass</span>
<div class="viewcode-block" id="from_call"><a class="viewcode-back" href="../../grpc_status.html#grpc_status.rpc_status.from_call">[docs]</a><span class="k">def</span> <span class="nf">from_call</span><span class="p">(</span><span class="n">call</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Returns a google.rpc.status.Status message corresponding to a given grpc.Call.</span>
<span class="sd"> This is an EXPERIMENTAL API.</span>
<span class="sd"> Args:</span>
<span class="sd"> call: A grpc.Call instance.</span>
<span class="sd"> Returns:</span>
<span class="sd"> A google.rpc.status.Status message representing the status of the RPC.</span>
<span class="sd"> Raises:</span>
<span class="sd"> ValueError: If the gRPC call&#39;s code or details are inconsistent with the</span>
<span class="sd"> status code and message inside of the google.rpc.status.Status.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">call</span><span class="o">.</span><span class="n">trailing_metadata</span><span class="p">()</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">call</span><span class="o">.</span><span class="n">trailing_metadata</span><span class="p">():</span>
<span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="n">GRPC_DETAILS_METADATA_KEY</span><span class="p">:</span>
<span class="n">rich_status</span> <span class="o">=</span> <span class="n">status_pb2</span><span class="o">.</span><span class="n">Status</span><span class="o">.</span><span class="n">FromString</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">if</span> <span class="n">call</span><span class="o">.</span><span class="n">code</span><span class="p">()</span><span class="o">.</span><span class="n">value</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">!=</span> <span class="n">rich_status</span><span class="o">.</span><span class="n">code</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s2">&quot;Code in Status proto (</span><span class="si">%s</span><span class="s2">) doesn&#39;t match status code (</span><span class="si">%s</span><span class="s2">)&quot;</span>
<span class="o">%</span> <span class="p">(</span><span class="n">code_to_grpc_status_code</span><span class="p">(</span><span class="n">rich_status</span><span class="o">.</span><span class="n">code</span><span class="p">),</span> <span class="n">call</span><span class="o">.</span><span class="n">code</span><span class="p">())</span>
<span class="p">)</span>
<span class="k">if</span> <span class="n">call</span><span class="o">.</span><span class="n">details</span><span class="p">()</span> <span class="o">!=</span> <span class="n">rich_status</span><span class="o">.</span><span class="n">message</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s2">&quot;Message in Status proto (</span><span class="si">%s</span><span class="s2">) doesn&#39;t match status details&quot;</span>
<span class="s2">&quot; (</span><span class="si">%s</span><span class="s2">)&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">rich_status</span><span class="o">.</span><span class="n">message</span><span class="p">,</span> <span class="n">call</span><span class="o">.</span><span class="n">details</span><span class="p">())</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">rich_status</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="to_status"><a class="viewcode-back" href="../../grpc_status.html#grpc_status.rpc_status.to_status">[docs]</a><span class="k">def</span> <span class="nf">to_status</span><span class="p">(</span><span class="n">status</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Convert a google.rpc.status.Status message to grpc.Status.</span>
<span class="sd"> This is an EXPERIMENTAL API.</span>
<span class="sd"> Args:</span>
<span class="sd"> status: a google.rpc.status.Status message representing the non-OK status</span>
<span class="sd"> to terminate the RPC with and communicate it to the client.</span>
<span class="sd"> Returns:</span>
<span class="sd"> A grpc.Status instance representing the input google.rpc.status.Status message.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">_Status</span><span class="p">(</span>
<span class="n">code</span><span class="o">=</span><span class="n">code_to_grpc_status_code</span><span class="p">(</span><span class="n">status</span><span class="o">.</span><span class="n">code</span><span class="p">),</span>
<span class="n">details</span><span class="o">=</span><span class="n">status</span><span class="o">.</span><span class="n">message</span><span class="p">,</span>
<span class="n">trailing_metadata</span><span class="o">=</span><span class="p">(</span>
<span class="p">(</span><span class="n">GRPC_DETAILS_METADATA_KEY</span><span class="p">,</span> <span class="n">status</span><span class="o">.</span><span class="n">SerializeToString</span><span class="p">()),</span>
<span class="p">),</span>
<span class="p">)</span></div>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span>
<span class="s2">&quot;from_call&quot;</span><span class="p">,</span>
<span class="s2">&quot;to_status&quot;</span><span class="p">,</span>
<span class="p">]</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">&gt;=</span> <span class="mi">3</span> <span class="ow">and</span> <span class="n">sys</span><span class="o">.</span><span class="n">version_info</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">&gt;=</span> <span class="mi">6</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">_async</span> <span class="k">as</span> <span class="n">aio</span> <span class="c1"># pylint: disable=unused-import</span>
<span class="n">__all__</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">&quot;aio&quot;</span><span class="p">)</span>
</pre></div>
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