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<!DOCTYPE html>
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<h1>Source code for boundary.agent</h1><div class="highlight"><pre>
<span></span><span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">traceback</span>
<span class="kn">from</span> <span class="nn">os</span> <span class="kn">import</span> <span class="n">getpid</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="kn">import</span> <span class="n">dirname</span><span class="p">,</span> <span class="n">abspath</span><span class="p">,</span> <span class="n">isdir</span>
<span class="kn">from</span> <span class="nn">daemon</span> <span class="kn">import</span> <span class="n">runner</span>
<span class="kn">from</span> <span class="nn">time</span> <span class="kn">import</span> <span class="n">sleep</span><span class="p">,</span> <span class="n">time</span>
<span class="kn">from</span> <span class="nn">logging.handlers</span> <span class="kn">import</span> <span class="n">TimedRotatingFileHandler</span><span class="p">,</span> <span class="n">MemoryHandler</span>
<span class="kn">import</span> <span class="nn">os.path</span>
<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">realpath</span><span class="p">(</span><span class="n">__file__</span><span class="p">)),</span> <span class="n">os</span><span class="o">.</span><span class="n">pardir</span><span class="p">))</span>
<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">__file__</span><span class="p">))</span>
<span class="kn">import</span> <span class="nn">settings</span>
<span class="kn">from</span> <span class="nn">boundary</span> <span class="kn">import</span> <span class="n">Boundary</span>
<span class="kn">from</span> <span class="nn">boundary_algorithms</span> <span class="kn">import</span> <span class="o">*</span>
<span class="n">skyline_app</span> <span class="o">=</span> <span class="s1">'boundary'</span>
<span class="n">skyline_app_logger</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">Log'</span> <span class="o">%</span> <span class="n">skyline_app</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="n">skyline_app_logger</span><span class="p">)</span>
<span class="n">logfile</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">/</span><span class="si">%s</span><span class="s1">.log'</span> <span class="o">%</span> <span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LOG_PATH</span><span class="p">,</span> <span class="n">skyline_app</span><span class="p">)</span>
<div class="viewcode-block" id="BoundaryAgent"><a class="viewcode-back" href="../../skyline.boundary.html#boundary.agent.BoundaryAgent">[docs]</a><span class="k">class</span> <span class="nc">BoundaryAgent</span><span class="p">():</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="bp">self</span><span class="o">.</span><span class="n">stdin_path</span> <span class="o">=</span> <span class="s1">'/dev/null'</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stdout_path</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">/</span><span class="si">%s</span><span class="s1">.log'</span> <span class="o">%</span> <span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LOG_PATH</span><span class="p">,</span> <span class="n">skyline_app</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stderr_path</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">/</span><span class="si">%s</span><span class="s1">.log'</span> <span class="o">%</span> <span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LOG_PATH</span><span class="p">,</span> <span class="n">skyline_app</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pidfile_path</span> <span class="o">=</span> <span class="s1">'</span><span class="si">%s</span><span class="s1">/</span><span class="si">%s</span><span class="s1">.pid'</span> <span class="o">%</span> <span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">PID_PATH</span><span class="p">,</span> <span class="n">skyline_app</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pidfile_timeout</span> <span class="o">=</span> <span class="mi">5</span>
<div class="viewcode-block" id="BoundaryAgent.run"><a class="viewcode-back" href="../../skyline.boundary.html#boundary.agent.BoundaryAgent.run">[docs]</a> <span class="k">def</span> <span class="nf">run</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'agent starting skyline </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">skyline_app</span><span class="p">)</span>
<span class="n">Boundary</span><span class="p">(</span><span class="n">getpid</span><span class="p">())</span><span class="o">.</span><span class="n">start</span><span class="p">()</span>
<span class="k">while</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">sleep</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span></div></div>
<div class="viewcode-block" id="run"><a class="viewcode-back" href="../../skyline.boundary.html#boundary.agent.run">[docs]</a><span class="k">def</span> <span class="nf">run</span><span class="p">():</span>
<span class="sd">"""</span>
<span class="sd"> Start the Boundary agent.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">isdir</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">PID_PATH</span><span class="p">):</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'pid directory does not exist at </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">settings</span><span class="o">.</span><span class="n">PID_PATH</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">isdir</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LOG_PATH</span><span class="p">):</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'log directory does not exist at </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">settings</span><span class="o">.</span><span class="n">LOG_PATH</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="c1"># Make sure all the BOUNDARY_ALGORITHMS are valid</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">BOUNDARY_ALGORITHMS</span><span class="p">:</span>
<span class="n">configuration_error</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">for</span> <span class="n">algorithm</span> <span class="ow">in</span> <span class="n">settings</span><span class="o">.</span><span class="n">BOUNDARY_ALGORITHMS</span><span class="p">:</span>
<span class="n">valid</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">algorithm</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">valid</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">valid</span><span class="p">:</span>
<span class="n">configuration_error</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'configuration error in tuple, expected: str'</span><span class="p">)</span>
<span class="k">print</span><span class="p">(</span><span class="s1">'configuration error in BOUNDARY_ALGORITHMS tuple: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">algorithm</span><span class="p">))</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">if</span> <span class="n">configuration_error</span><span class="p">:</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'There are configuration issues in BOUNDARY_ALGORITHMS in settings.py'</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'There are no BOUNDARY_ALGORITHMS in settings.py. try adding some, nothing to do'</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="c1"># Make sure we can run all the algorithms</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">timeseries</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">zip</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">float</span><span class="p">,</span> <span class="nb">range</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">time</span><span class="p">())</span> <span class="o">-</span> <span class="mi">86400</span><span class="p">,</span> <span class="nb">int</span><span class="p">(</span><span class="n">time</span><span class="p">())</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)),</span> <span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">*</span> <span class="mi">86401</span><span class="p">))</span>
<span class="n">ensemble</span> <span class="o">=</span> <span class="p">[</span><span class="nb">globals</span><span class="p">()[</span><span class="n">algorithm</span><span class="p">](</span>
<span class="n">timeseries</span><span class="p">,</span> <span class="s1">'test'</span><span class="p">,</span> <span class="mi">3600</span><span class="p">,</span> <span class="mi">100</span><span class="p">,</span> <span class="mi">300</span><span class="p">,</span> <span class="mi">1</span>
<span class="p">)</span> <span class="k">for</span> <span class="n">algorithm</span> <span class="ow">in</span> <span class="n">settings</span><span class="o">.</span><span class="n">BOUNDARY_ALGORITHMS</span><span class="p">]</span>
<span class="k">except</span> <span class="ne">KeyError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'Algorithm </span><span class="si">%s</span><span class="s1"> deprecated or not defined; check settings.BOUNDARY_ALGORITHMS'</span> <span class="o">%</span> <span class="n">e</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'Algorithm test run failed.'</span><span class="p">)</span>
<span class="n">traceback</span><span class="o">.</span><span class="n">print_exc</span><span class="p">()</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="c1"># Make sure all the BOUNDARY_METRICS are valid</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">if</span> <span class="n">settings</span><span class="o">.</span><span class="n">BOUNDARY_METRICS</span><span class="p">:</span>
<span class="n">configuration_error</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">for</span> <span class="n">metric</span> <span class="ow">in</span> <span class="n">settings</span><span class="o">.</span><span class="n">BOUNDARY_METRICS</span><span class="p">:</span>
<span class="n">valid</span> <span class="o">=</span> <span class="bp">True</span>
<span class="n">strings</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">strings</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">strings</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="n">strings</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">7</span><span class="p">])</span>
<span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">strings</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">string</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">valid</span> <span class="o">=</span> <span class="bp">False</span>
<span class="n">values</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">values</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="n">values</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
<span class="n">values</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">4</span><span class="p">])</span>
<span class="n">values</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">5</span><span class="p">])</span>
<span class="n">values</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">[</span><span class="mi">6</span><span class="p">])</span>
<span class="k">for</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">values</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span>
<span class="n">valid</span> <span class="o">=</span> <span class="bp">False</span>
<span class="n">alert_via</span> <span class="o">=</span> <span class="n">metric</span><span class="p">[</span><span class="mi">7</span><span class="p">]</span>
<span class="k">for</span> <span class="n">alerter</span> <span class="ow">in</span> <span class="n">alert_via</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">"|"</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">alerter</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">valid</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">valid</span><span class="p">:</span>
<span class="n">configuration_error</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'configuration error in tuple, expected: str, str, int, int, int, int, str'</span><span class="p">)</span>
<span class="k">print</span><span class="p">(</span><span class="s1">'configuration error in BOUNDARY_METRICS tuple: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">metric</span><span class="p">))</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">if</span> <span class="n">configuration_error</span><span class="p">:</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'There are configuration issues in BOUNDARY_METRICS in settings.py'</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">print</span> <span class="p">(</span><span class="s1">'There are no BOUNDARY_METRICS in settings.py. try adding some, nothing to do'</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">setLevel</span><span class="p">(</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">)</span>
<span class="n">formatter</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">Formatter</span><span class="p">(</span><span class="s2">"</span><span class="si">%(asctime)s</span><span class="s2"> :: </span><span class="si">%(process)s</span><span class="s2"> :: </span><span class="si">%(message)s</span><span class="s2">"</span><span class="p">,</span> <span class="n">datefmt</span><span class="o">=</span><span class="s2">"%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S"</span><span class="p">)</span>
<span class="n">handler</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">handlers</span><span class="o">.</span><span class="n">TimedRotatingFileHandler</span><span class="p">(</span>
<span class="n">logfile</span><span class="p">,</span>
<span class="n">when</span><span class="o">=</span><span class="s2">"midnight"</span><span class="p">,</span>
<span class="n">interval</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
<span class="n">backupCount</span><span class="o">=</span><span class="mi">5</span><span class="p">)</span>
<span class="n">memory_handler</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">handlers</span><span class="o">.</span><span class="n">MemoryHandler</span><span class="p">(</span><span class="mi">256</span><span class="p">,</span>
<span class="n">flushLevel</span><span class="o">=</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">,</span>
<span class="n">target</span><span class="o">=</span><span class="n">handler</span><span class="p">)</span>
<span class="n">handler</span><span class="o">.</span><span class="n">setFormatter</span><span class="p">(</span><span class="n">formatter</span><span class="p">)</span>
<span class="n">logger</span><span class="o">.</span><span class="n">addHandler</span><span class="p">(</span><span class="n">memory_handler</span><span class="p">)</span>
<span class="n">boundary</span> <span class="o">=</span> <span class="n">BoundaryAgent</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="s1">'run'</span><span class="p">:</span>
<span class="n">boundary</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">daemon_runner</span> <span class="o">=</span> <span class="n">runner</span><span class="o">.</span><span class="n">DaemonRunner</span><span class="p">(</span><span class="n">boundary</span><span class="p">)</span>
<span class="n">daemon_runner</span><span class="o">.</span><span class="n">daemon_context</span><span class="o">.</span><span class="n">files_preserve</span> <span class="o">=</span> <span class="p">[</span><span class="n">handler</span><span class="o">.</span><span class="n">stream</span><span class="p">]</span>
<span class="n">daemon_runner</span><span class="o">.</span><span class="n">do_action</span><span class="p">()</span></div>
<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s2">"__main__"</span><span class="p">:</span>
<span class="n">run</span><span class="p">()</span>
</pre></div>
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