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<div class="section" id="module-awips.dataaccess.DataAccessLayer">
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<span id="dataaccesslayer"></span><h1>DataAccessLayer<a class="headerlink" href="#module-awips.dataaccess.DataAccessLayer" title="Permalink to this headline">¶</a></h1>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.changeEDEXHost">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">changeEDEXHost</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">newHostName</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#changeEDEXHost"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.changeEDEXHost" title="Permalink to this definition">¶</a></dt>
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<dd><p>Changes the EDEX host the Data Access Framework is communicating with. Only
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works if using the native Python client implementation, otherwise, this
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method will throw a TypeError.</p>
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<dl class="simple">
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<dt>Args:</dt><dd><p>newHostName: the EDEX host to connect to</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getAvailableLevels">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getAvailableLevels</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getAvailableLevels"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getAvailableLevels" title="Permalink to this definition">¶</a></dt>
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<dd><p>Gets the available levels that match the request without actually
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requesting the data.</p>
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<dl class="simple">
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<dt>Args:</dt><dd><p>request: the request to find matching levels for</p>
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</dd>
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<dt>Returns:</dt><dd><p>a list of strings of available levels.</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getAvailableLocationNames">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getAvailableLocationNames</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getAvailableLocationNames"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getAvailableLocationNames" title="Permalink to this definition">¶</a></dt>
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<dd><p>Gets the available location names that match the request without actually
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requesting the data.</p>
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<dl class="simple">
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<dt>Args:</dt><dd><p>request: the request to find matching location names for</p>
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</dd>
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<dt>Returns:</dt><dd><p>a list of strings of available location names.</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getAvailableParameters">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getAvailableParameters</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getAvailableParameters"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getAvailableParameters" title="Permalink to this definition">¶</a></dt>
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<dd><p>Gets the available parameters names that match the request without actually
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requesting the data.</p>
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<dl class="simple">
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<dt>Args:</dt><dd><p>request: the request to find matching parameter names for</p>
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</dd>
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<dt>Returns:</dt><dd><p>a list of strings of available parameter names.</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getAvailableTimes">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getAvailableTimes</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em>, <em class="sig-param"><span class="n">refTimeOnly</span><span class="o">=</span><span class="default_value">False</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getAvailableTimes"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getAvailableTimes" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the times of available data to the request.</p>
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<dl>
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<dt>Args:</dt><dd><p>request: the IDataRequest to get data for
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refTimeOnly: optional, use True if only unique refTimes should be</p>
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<blockquote>
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<div><p>returned (without a forecastHr)</p>
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</div></blockquote>
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</dd>
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<dt>Returns:</dt><dd><p>a list of DataTimes</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getForecastRun">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getForecastRun</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">cycle</span></em>, <em class="sig-param"><span class="n">times</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getForecastRun"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getForecastRun" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get the latest forecast run (list of objects) from all
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all cycles and times returned from DataAccessLayer “grid”
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response.</p>
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<dl class="simple">
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<dt>Args:</dt><dd><p>cycle: Forecast cycle reference time
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times: All available times/cycles</p>
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</dd>
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<dt>Returns:</dt><dd><p>DataTime array for a single forecast run</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getGeometryData">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getGeometryData</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em>, <em class="sig-param"><span class="n">times</span><span class="o">=</span><span class="default_value">[]</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getGeometryData"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getGeometryData" title="Permalink to this definition">¶</a></dt>
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<dd><p>Gets the geometry data that matches the request at the specified times.
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Each combination of geometry, level, and dataTime will be returned as a
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separate IGeometryData.</p>
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<dl>
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<dt>Args:</dt><dd><p>request: the IDataRequest to get data for
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times: a list of DataTimes, a TimeRange, or None if the data is time</p>
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||
|
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<blockquote>
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||
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<div><p>agnostic</p>
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||
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</div></blockquote>
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</dd>
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<dt>Returns:</dt><dd><p>a list of IGeometryData</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="py function">
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<dt id="awips.dataaccess.DataAccessLayer.getGridData">
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<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getGridData</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em>, <em class="sig-param"><span class="n">times</span><span class="o">=</span><span class="default_value">[]</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getGridData"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getGridData" title="Permalink to this definition">¶</a></dt>
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||
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<dd><p>Gets the grid data that matches the request at the specified times. Each
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combination of parameter, level, and dataTime will be returned as a
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separate IGridData.</p>
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<dl>
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||
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<dt>Args:</dt><dd><p>request: the IDataRequest to get data for
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times: a list of DataTimes, a TimeRange, or None if the data is time</p>
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|
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<blockquote>
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||
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<div><p>agnostic</p>
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||
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</div></blockquote>
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</dd>
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<dt>Returns:</dt><dd><p>a list of IGridData</p>
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||
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</dd>
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||
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</dl>
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</dd></dl>
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||
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<dl class="py function">
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||
|
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<dt id="awips.dataaccess.DataAccessLayer.getIdentifierValues">
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||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getIdentifierValues</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em>, <em class="sig-param"><span class="n">identifierKey</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getIdentifierValues"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getIdentifierValues" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Gets the allowed values for a particular identifier on this datatype.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>request: the request to find identifier values for
|
||
|
|
identifierKey: the identifier to find values for</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>a list of strings of allowed values for the specified identifier</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getMetarObs">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getMetarObs</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">response</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getMetarObs"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getMetarObs" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Processes a DataAccessLayer “obs” response into a dictionary,
|
||
|
|
with special consideration for multi-value parameters
|
||
|
|
“presWeather”, “skyCover”, and “skyLayerBase”.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>response: DAL getGeometry() list</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>A dictionary of METAR obs</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getOptionalIdentifiers">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getOptionalIdentifiers</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getOptionalIdentifiers"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getOptionalIdentifiers" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Gets the optional identifiers for this request.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>request: the request to find optional identifiers for</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>a list of strings of optional identifiers</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getRadarProductIDs">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getRadarProductIDs</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">availableParms</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getRadarProductIDs"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getRadarProductIDs" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Get only the numeric idetifiers for NEXRAD3 products.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>availableParms: Full list of radar parameters</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>List of filtered parameters</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getRadarProductNames">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getRadarProductNames</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">availableParms</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getRadarProductNames"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getRadarProductNames" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><blockquote>
|
||
|
|
<div><p>Get only the named idetifiers for NEXRAD3 products.</p>
|
||
|
|
</div></blockquote>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>availableParms: Full list of radar parameters</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>List of filtered parameters</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getRequiredIdentifiers">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getRequiredIdentifiers</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">request</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getRequiredIdentifiers"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getRequiredIdentifiers" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Gets the required identifiers for this request. These identifiers
|
||
|
|
must be set on a request for the request of this datatype to succeed.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>request: the request to find required identifiers for</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>a list of strings of required identifiers</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getSupportedDatatypes">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getSupportedDatatypes</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getSupportedDatatypes"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getSupportedDatatypes" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Gets the datatypes that are supported by the framework</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Returns:</dt><dd><p>a list of strings of supported datatypes</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.getSynopticObs">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">getSynopticObs</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">response</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#getSynopticObs"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.getSynopticObs" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Processes a DataAccessLayer “sfcobs” response into a dictionary
|
||
|
|
of available parameters.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>response: DAL getGeometry() list</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>A dictionary of synop obs</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.newDataRequest">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">newDataRequest</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">datatype</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="o">**</span><span class="n">kwargs</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#newDataRequest"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.newDataRequest" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Creates a new instance of IDataRequest suitable for the runtime environment.
|
||
|
|
All args are optional and exist solely for convenience.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>datatype: the datatype to create a request for
|
||
|
|
parameters: a list of parameters to set on the request
|
||
|
|
levels: a list of levels to set on the request
|
||
|
|
locationNames: a list of locationNames to set on the request
|
||
|
|
envelope: an envelope to limit the request
|
||
|
|
kwargs: any leftover kwargs will be set as identifiers</p>
|
||
|
|
</dd>
|
||
|
|
<dt>Returns:</dt><dd><p>a new IDataRequest</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="py function">
|
||
|
|
<dt id="awips.dataaccess.DataAccessLayer.setLazyLoadGridLatLon">
|
||
|
|
<code class="sig-prename descclassname">awips.dataaccess.DataAccessLayer.</code><code class="sig-name descname">setLazyLoadGridLatLon</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">lazyLoadGridLatLon</span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/awips/dataaccess/DataAccessLayer.html#setLazyLoadGridLatLon"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#awips.dataaccess.DataAccessLayer.setLazyLoadGridLatLon" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Provide a hint to the Data Access Framework indicating whether to load the
|
||
|
|
lat/lon data for a grid immediately or wait until it is needed. This is
|
||
|
|
provided as a performance tuning hint and should not affect the way the
|
||
|
|
Data Access Framework is used. Depending on the internal implementation of
|
||
|
|
the Data Access Framework this hint might be ignored. Examples of when this
|
||
|
|
should be set to True are when the lat/lon information is not used or when
|
||
|
|
it is used only if certain conditions within the data are met. It could be
|
||
|
|
set to False if it is guaranteed that all lat/lon information is needed and
|
||
|
|
it would be better to get any performance overhead for generating the
|
||
|
|
lat/lon data out of the way during the initial request.</p>
|
||
|
|
<dl class="simple">
|
||
|
|
<dt>Args:</dt><dd><p>lazyLoadGridLatLon: Boolean value indicating whether to lazy load.</p>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
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|
|
||
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|
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||
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<a href="IDataRequest.html" class="btn btn-neutral float-right" title="IDataRequest (newDataRequest())" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
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||
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<div role="contentinfo">
|
||
|
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<p>
|
||
|
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|
||
|
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© Copyright 2018, Unidata
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||
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|
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|
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</p>
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