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src_rockstor_storageadmin_views_pool_scrub.html
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<!doctype html PUBLIC "-//W3C//DTD html 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<h1>Coverage for <b>src/rockstor/storageadmin/views/pool_scrub</b> :
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<p id='t1' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t2' class='pln'><span class='str'>Copyright (c) 2012-2013 RockStor, Inc. <http://rockstor.com></span><span class='strut'> </span></p>
<p id='t3' class='pln'><span class='str'>This file is part of RockStor.</span><span class='strut'> </span></p>
<p id='t4' class='pln'><span class='strut'> </span></p>
<p id='t5' class='pln'><span class='str'>RockStor is free software; you can redistribute it and/or modify</span><span class='strut'> </span></p>
<p id='t6' class='pln'><span class='str'>it under the terms of the GNU General Public License as published</span><span class='strut'> </span></p>
<p id='t7' class='pln'><span class='str'>by the Free Software Foundation; either version 2 of the License,</span><span class='strut'> </span></p>
<p id='t8' class='pln'><span class='str'>or (at your option) any later version.</span><span class='strut'> </span></p>
<p id='t9' class='pln'><span class='strut'> </span></p>
<p id='t10' class='pln'><span class='str'>RockStor is distributed in the hope that it will be useful, but</span><span class='strut'> </span></p>
<p id='t11' class='pln'><span class='str'>WITHOUT ANY WARRANTY; without even the implied warranty of</span><span class='strut'> </span></p>
<p id='t12' class='pln'><span class='str'>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span><span class='strut'> </span></p>
<p id='t13' class='pln'><span class='str'>General Public License for more details.</span><span class='strut'> </span></p>
<p id='t14' class='pln'><span class='strut'> </span></p>
<p id='t15' class='pln'><span class='str'>You should have received a copy of the GNU General Public License</span><span class='strut'> </span></p>
<p id='t16' class='pln'><span class='str'>along with this program. If not, see <http://www.gnu.org/licenses/>.</span><span class='strut'> </span></p>
<p id='t17' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t18' class='pln'><span class='strut'> </span></p>
<p id='t19' class='stm mis'><span class='key'>from</span> <span class='nam'>rest_framework</span><span class='op'>.</span><span class='nam'>response</span> <span class='key'>import</span> <span class='nam'>Response</span><span class='strut'> </span></p>
<p id='t20' class='stm mis'><span class='key'>from</span> <span class='nam'>django</span><span class='op'>.</span><span class='nam'>db</span> <span class='key'>import</span> <span class='nam'>transaction</span><span class='strut'> </span></p>
<p id='t21' class='stm mis'><span class='key'>from</span> <span class='nam'>storageadmin</span><span class='op'>.</span><span class='nam'>util</span> <span class='key'>import</span> <span class='nam'>handle_exception</span><span class='strut'> </span></p>
<p id='t22' class='stm mis'><span class='key'>from</span> <span class='nam'>storageadmin</span><span class='op'>.</span><span class='nam'>serializers</span> <span class='key'>import</span> <span class='nam'>PoolScrubSerializer</span><span class='strut'> </span></p>
<p id='t23' class='stm mis'><span class='key'>from</span> <span class='nam'>storageadmin</span><span class='op'>.</span><span class='nam'>models</span> <span class='key'>import</span> <span class='op'>(</span><span class='nam'>Pool</span><span class='op'>,</span> <span class='nam'>PoolScrub</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t24' class='stm mis'><span class='key'>import</span> <span class='nam'>rest_framework_custom</span> <span class='key'>as</span> <span class='nam'>rfc</span><span class='strut'> </span></p>
<p id='t25' class='stm mis'><span class='key'>from</span> <span class='nam'>fs</span><span class='op'>.</span><span class='nam'>btrfs</span> <span class='key'>import</span> <span class='op'>(</span><span class='nam'>scrub_start</span><span class='op'>,</span> <span class='nam'>scrub_status</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t26' class='stm mis'><span class='key'>from</span> <span class='nam'>datetime</span> <span class='key'>import</span> <span class='nam'>timedelta</span><span class='strut'> </span></p>
<p id='t27' class='pln'><span class='strut'> </span></p>
<p id='t28' class='stm mis'><span class='key'>import</span> <span class='nam'>logging</span><span class='strut'> </span></p>
<p id='t29' class='stm mis'><span class='nam'>logger</span> <span class='op'>=</span> <span class='nam'>logging</span><span class='op'>.</span><span class='nam'>getLogger</span><span class='op'>(</span><span class='nam'>__name__</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t30' class='pln'><span class='strut'> </span></p>
<p id='t31' class='pln'><span class='strut'> </span></p>
<p id='t32' class='stm mis'><span class='key'>class</span> <span class='nam'>PoolScrubView</span><span class='op'>(</span><span class='nam'>rfc</span><span class='op'>.</span><span class='nam'>GenericView</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t33' class='stm mis'> <span class='nam'>serializer_class</span> <span class='op'>=</span> <span class='nam'>PoolScrubSerializer</span><span class='strut'> </span></p>
<p id='t34' class='pln'><span class='strut'> </span></p>
<p id='t35' class='stm mis'> <span class='key'>def</span> <span class='nam'>_validate_pool</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>pid</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t36' class='stm mis'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t37' class='stm mis'> <span class='key'>return</span> <span class='nam'>Pool</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>id</span><span class='op'>=</span><span class='nam'>pid</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t38' class='stm mis'> <span class='key'>except</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t39' class='stm mis'> <span class='nam'>e_msg</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'Pool with database id: ({}) does not exist.'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>pid</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t40' class='stm mis'> <span class='nam'>handle_exception</span><span class='op'>(</span><span class='nam'>Exception</span><span class='op'>(</span><span class='nam'>e_msg</span><span class='op'>)</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t41' class='pln'><span class='strut'> </span></p>
<p id='t42' class='stm mis'> <span class='key'>def</span> <span class='nam'>get_queryset</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='op'>*</span><span class='nam'>args</span><span class='op'>,</span> <span class='op'>**</span><span class='nam'>kwargs</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t43' class='stm mis'> <span class='key'>with</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>_handle_exception</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>.</span><span class='nam'>request</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t44' class='stm mis'> <span class='nam'>pool</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>_validate_pool</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>.</span><span class='nam'>kwargs</span><span class='op'>[</span><span class='str'>'pid'</span><span class='op'>]</span><span class='op'>,</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t45' class='stm mis'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>_scrub_status</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t46' class='stm mis'> <span class='key'>return</span> <span class='nam'>PoolScrub</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>order_by</span><span class='op'>(</span><span class='str'>'-id'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t47' class='pln'><span class='strut'> </span></p>
<p id='t48' class='stm mis'> <span class='op'>@</span><span class='nam'>transaction</span><span class='op'>.</span><span class='nam'>atomic</span><span class='strut'> </span></p>
<p id='t49' class='pln'> <span class='key'>def</span> <span class='nam'>_scrub_status</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>pool</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t50' class='stm mis'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t51' class='stm mis'> <span class='nam'>ps</span> <span class='op'>=</span> <span class='nam'>PoolScrub</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>order_by</span><span class='op'>(</span><span class='str'>'-id'</span><span class='op'>)</span><span class='op'>[</span><span class='num'>0</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t52' class='stm mis'> <span class='key'>except</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t53' class='stm mis'> <span class='key'>return</span> <span class='nam'>Response</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t54' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>ps</span><span class='op'>.</span><span class='nam'>status</span> <span class='op'>==</span> <span class='str'>'started'</span> <span class='key'>or</span> <span class='nam'>ps</span><span class='op'>.</span><span class='nam'>status</span> <span class='op'>==</span> <span class='str'>'running'</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t55' class='stm mis'> <span class='nam'>cur_status</span> <span class='op'>=</span> <span class='nam'>scrub_status</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t56' class='stm mis'> <span class='key'>if</span> <span class='nam'>cur_status</span><span class='op'>[</span><span class='str'>'status'</span><span class='op'>]</span> <span class='op'>==</span> <span class='str'>'finished'</span> <span class='xx'>\</span><span class='strut'> </span></p>
<p id='t57' class='pln'> <span class='key'>or</span> <span class='nam'>cur_status</span><span class='op'>[</span><span class='str'>'status'</span><span class='op'>]</span> <span class='op'>==</span> <span class='str'>'halted'</span> <span class='xx'>\</span><span class='strut'> </span></p>
<p id='t58' class='pln'> <span class='key'>or</span> <span class='nam'>cur_status</span><span class='op'>[</span><span class='str'>'status'</span><span class='op'>]</span> <span class='op'>==</span> <span class='str'>'cancelled'</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t59' class='stm mis'> <span class='nam'>duration</span> <span class='op'>=</span> <span class='nam'>int</span><span class='op'>(</span><span class='nam'>cur_status</span><span class='op'>[</span><span class='str'>'duration'</span><span class='op'>]</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t60' class='stm mis'> <span class='nam'>cur_status</span><span class='op'>[</span><span class='str'>'end_time'</span><span class='op'>]</span> <span class='op'>=</span> <span class='op'>(</span><span class='nam'>ps</span><span class='op'>.</span><span class='nam'>start_time</span> <span class='op'>+</span><span class='strut'> </span></p>
<p id='t61' class='pln'> <span class='nam'>timedelta</span><span class='op'>(</span><span class='nam'>seconds</span><span class='op'>=</span><span class='nam'>duration</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t62' class='stm mis'> <span class='key'>del</span><span class='op'>(</span><span class='nam'>cur_status</span><span class='op'>[</span><span class='str'>'duration'</span><span class='op'>]</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t63' class='stm mis'> <span class='nam'>PoolScrub</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>id</span><span class='op'>=</span><span class='nam'>ps</span><span class='op'>.</span><span class='nam'>id</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>update</span><span class='op'>(</span><span class='op'>**</span><span class='nam'>cur_status</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t64' class='stm mis'> <span class='key'>return</span> <span class='nam'>ps</span><span class='strut'> </span></p>
<p id='t65' class='pln'><span class='strut'> </span></p>
<p id='t66' class='stm mis'> <span class='op'>@</span><span class='nam'>transaction</span><span class='op'>.</span><span class='nam'>atomic</span><span class='strut'> </span></p>
<p id='t67' class='stm mis'> <span class='key'>def</span> <span class='nam'>post</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>,</span> <span class='nam'>pid</span><span class='op'>,</span> <span class='nam'>command</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t68' class='stm mis'> <span class='nam'>pool</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>_validate_pool</span><span class='op'>(</span><span class='nam'>pid</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t69' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>command</span> <span class='key'>is</span> <span class='key'>not</span> <span class='nam'>None</span> <span class='key'>and</span> <span class='nam'>command</span> <span class='op'>!=</span> <span class='str'>'status'</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t70' class='stm mis'> <span class='nam'>e_msg</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'Unknown scrub command: ({}).'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>command</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t71' class='stm mis'> <span class='nam'>handle_exception</span><span class='op'>(</span><span class='nam'>Exception</span><span class='op'>(</span><span class='nam'>e_msg</span><span class='op'>)</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t72' class='pln'><span class='strut'> </span></p>
<p id='t73' class='stm mis'> <span class='key'>with</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>_handle_exception</span><span class='op'>(</span><span class='nam'>request</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t74' class='stm mis'> <span class='nam'>ps</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>_scrub_status</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t75' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>command</span> <span class='op'>==</span> <span class='str'>'status'</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t76' class='stm mis'> <span class='key'>return</span> <span class='nam'>Response</span><span class='op'>(</span><span class='nam'>PoolScrubSerializer</span><span class='op'>(</span><span class='nam'>ps</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>data</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t77' class='stm mis'> <span class='nam'>force</span> <span class='op'>=</span> <span class='nam'>request</span><span class='op'>.</span><span class='nam'>data</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='str'>'force'</span><span class='op'>,</span> <span class='nam'>False</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t78' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='op'>(</span><span class='nam'>PoolScrub</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t79' class='pln'> <span class='nam'>status__regex</span><span class='op'>=</span><span class='str'>r'(started|running)'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t80' class='pln'> <span class='op'>.</span><span class='nam'>exists</span><span class='op'>(</span><span class='op'>)</span><span class='op'>)</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t81' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>force</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t82' class='stm mis'> <span class='nam'>p</span> <span class='op'>=</span> <span class='nam'>PoolScrub</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='strut'> </span></p>
<p id='t83' class='pln'> <span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t84' class='pln'> <span class='nam'>status__regex</span><span class='op'>=</span><span class='str'>r'(started|running)'</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>order_by</span><span class='op'>(</span><span class='str'>'-id'</span><span class='op'>)</span><span class='op'>[</span><span class='num'>0</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t85' class='stm mis'> <span class='nam'>p</span><span class='op'>.</span><span class='nam'>status</span> <span class='op'>=</span> <span class='str'>'terminated'</span><span class='strut'> </span></p>
<p id='t86' class='stm mis'> <span class='nam'>p</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t87' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t88' class='stm mis'> <span class='nam'>e_msg</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'A Scrub process is already running for '</span><span class='strut'> </span></p>
<p id='t89' class='pln'> <span class='str'>'pool ({}). If you really want to kill it '</span><span class='strut'> </span></p>
<p id='t90' class='pln'> <span class='str'>'and start a new scrub, use the force option.'</span><span class='strut'> </span></p>
<p id='t91' class='pln'> <span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t92' class='stm mis'> <span class='nam'>handle_exception</span><span class='op'>(</span><span class='nam'>Exception</span><span class='op'>(</span><span class='nam'>e_msg</span><span class='op'>)</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t93' class='pln'><span class='strut'> </span></p>
<p id='t94' class='stm mis'> <span class='nam'>scrub_pid</span> <span class='op'>=</span> <span class='nam'>scrub_start</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>force</span><span class='op'>=</span><span class='nam'>force</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t95' class='stm mis'> <span class='nam'>ps</span> <span class='op'>=</span> <span class='nam'>PoolScrub</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>pid</span><span class='op'>=</span><span class='nam'>scrub_pid</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t96' class='stm mis'> <span class='nam'>ps</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t97' class='stm mis'> <span class='key'>return</span> <span class='nam'>Response</span><span class='op'>(</span><span class='nam'>PoolScrubSerializer</span><span class='op'>(</span><span class='nam'>ps</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>data</span><span class='op'>)</span><span class='strut'> </span></p>
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