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51  <h1>Source code for sas.guiframe.local_perspectives.data_loader.load_thread</h1><div class="highlight"><pre>
52<span class="kn">import</span> <span class="nn">time</span>
53<span class="kn">import</span> <span class="nn">sys</span>
54<span class="kn">import</span> <span class="nn">os</span>
55
56<span class="kn">from</span> <span class="nn">sas.data_util.calcthread</span> <span class="kn">import</span> <span class="n">CalcThread</span>
57
58       
59<span class="n">EXTENSIONS</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;.svs&#39;</span><span class="p">,</span> <span class="s">&#39;.prv&#39;</span><span class="p">,</span> <span class="s">&#39;.inv&#39;</span><span class="p">,</span> <span class="s">&#39;.fitv&#39;</span><span class="p">]</span>
60
61<span class="k">class</span> <span class="nc">DataReader</span><span class="p">(</span><span class="n">CalcThread</span><span class="p">):</span>
62<div class="viewcode-block" id="DataReader"><a class="viewcode-back" href="../../../../../dev/api/sas.guiframe.local_perspectives.data_loader.html#sas.guiframe.local_perspectives.data_loader.load_thread.DataReader">[docs]</a>    <span class="sd">&quot;&quot;&quot;</span>
63<span class="sd">    Load a data given a filename</span>
64<span class="sd">    &quot;&quot;&quot;</span>
65    <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="n">path</span><span class="p">,</span> <span class="n">loader</span><span class="p">,</span>
66                 <span class="n">flag</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
67                 <span class="n">transform_data</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
68                 <span class="n">completefn</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
69                 <span class="n">updatefn</span>   <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
70                 <span class="n">yieldtime</span>  <span class="o">=</span> <span class="mf">0.01</span><span class="p">,</span>
71                 <span class="n">worktime</span>   <span class="o">=</span> <span class="mf">0.01</span>
72                 <span class="p">):</span>
73        <span class="n">CalcThread</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">completefn</span><span class="p">,</span>
74                 <span class="n">updatefn</span><span class="p">,</span>
75                 <span class="n">yieldtime</span><span class="p">,</span>
76                 <span class="n">worktime</span><span class="p">)</span>
77        <span class="bp">self</span><span class="o">.</span><span class="n">load_state_flag</span> <span class="o">=</span> <span class="n">flag</span>
78        <span class="bp">self</span><span class="o">.</span><span class="n">transform_data</span> <span class="o">=</span> <span class="n">transform_data</span>
79        <span class="bp">self</span><span class="o">.</span><span class="n">list_path</span> <span class="o">=</span> <span class="n">path</span>
80        <span class="c">#Instantiate a loader </span>
81        <span class="bp">self</span><span class="o">.</span><span class="n">loader</span> <span class="o">=</span> <span class="n">loader</span>
82        <span class="bp">self</span><span class="o">.</span><span class="n">message</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>
83        <span class="bp">self</span><span class="o">.</span><span class="n">starttime</span> <span class="o">=</span> <span class="mi">0</span> 
84        <span class="bp">self</span><span class="o">.</span><span class="n">updatefn</span> <span class="o">=</span> <span class="n">updatefn</span>
85       
86    <span class="k">def</span> <span class="nf">isquit</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
87<div class="viewcode-block" id="DataReader.isquit"><a class="viewcode-back" href="../../../../../dev/api/sas.guiframe.local_perspectives.data_loader.html#sas.guiframe.local_perspectives.data_loader.load_thread.DataReader.isquit">[docs]</a>        <span class="sd">&quot;&quot;&quot;</span>
88<span class="sd">        :raise KeyboardInterrupt: when the thread is interrupted</span>
89<span class="sd">        &quot;&quot;&quot;</span>
90        <span class="k">try</span><span class="p">:</span>
91            <span class="n">CalcThread</span><span class="o">.</span><span class="n">isquit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
92        <span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">:</span>
93            <span class="k">raise</span> <span class="ne">KeyboardInterrupt</span>   
94       
95       
96    <span class="k">def</span> <span class="nf">compute</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></div>
97<div class="viewcode-block" id="DataReader.compute"><a class="viewcode-back" href="../../../../../dev/api/sas.guiframe.local_perspectives.data_loader.html#sas.guiframe.local_perspectives.data_loader.load_thread.DataReader.compute">[docs]</a>        <span class="sd">&quot;&quot;&quot;</span>
98<span class="sd">        read some data</span>
99<span class="sd">        &quot;&quot;&quot;</span>
100        <span class="bp">self</span><span class="o">.</span><span class="n">starttime</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
101        <span class="n">output</span> <span class="o">=</span> <span class="p">[]</span>
102        <span class="n">error_message</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>
103        <span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">list_path</span><span class="p">:</span>
104            <span class="n">basename</span>  <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">basename</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
105            <span class="n">root</span><span class="p">,</span> <span class="n">extension</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">basename</span><span class="p">)</span>
106            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">load_state_flag</span><span class="p">:</span>
107                <span class="k">if</span> <span class="n">extension</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="ow">in</span> <span class="n">EXTENSIONS</span><span class="p">:</span>
108                    <span class="k">pass</span>
109            <span class="k">else</span><span class="p">:</span>
110                <span class="k">if</span> <span class="n">extension</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">EXTENSIONS</span><span class="p">:</span>
111                    <span class="k">pass</span>
112            <span class="k">try</span><span class="p">:</span>
113                <span class="n">temp</span> <span class="o">=</span>  <span class="bp">self</span><span class="o">.</span><span class="n">loader</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
114                <span class="n">elapsed</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">starttime</span>
115                <span class="k">if</span> <span class="n">temp</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;list&quot;</span><span class="p">:</span>
116                    <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">temp</span><span class="p">:</span>
117                        <span class="n">data</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">transform_data</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span>
118                        <span class="n">output</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
119                <span class="k">else</span><span class="p">:</span>
120                    <span class="n">data</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">transform_data</span><span class="p">(</span><span class="n">temp</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span>
121                    <span class="n">output</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
122                <span class="n">message</span> <span class="o">=</span> <span class="s">&quot;Loading ...&quot;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="o">+</span> <span class="s">&quot;</span><span class="se">\n</span><span class="s">&quot;</span>
123                <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">updatefn</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
124                    <span class="bp">self</span><span class="o">.</span><span class="n">updatefn</span><span class="p">(</span><span class="n">output</span><span class="o">=</span><span class="n">output</span><span class="p">,</span> <span class="n">message</span><span class="o">=</span><span class="n">message</span><span class="p">)</span>
125            <span class="k">except</span><span class="p">:</span>
126                <span class="n">error_message</span> <span class="o">=</span> <span class="s">&quot;Error while loading: </span><span class="si">%s</span><span class="se">\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="nb">str</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
127                <span class="n">error_message</span> <span class="o">+=</span> <span class="nb">str</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">exc_value</span><span class="p">)</span> <span class="o">+</span> <span class="s">&quot;</span><span class="se">\n</span><span class="s">&quot;</span>
128                <span class="bp">self</span><span class="o">.</span><span class="n">updatefn</span><span class="p">(</span><span class="n">output</span><span class="o">=</span><span class="n">output</span><span class="p">,</span> <span class="n">message</span><span class="o">=</span><span class="n">error_message</span><span class="p">)</span>
129               
130        <span class="n">message</span> <span class="o">=</span> <span class="s">&quot;Loading Complete!&quot;</span>
131        <span class="bp">self</span><span class="o">.</span><span class="n">complete</span><span class="p">(</span><span class="n">output</span><span class="o">=</span><span class="n">output</span><span class="p">,</span> <span class="n">error_message</span><span class="o">=</span><span class="n">error_message</span><span class="p">,</span>
132                       <span class="n">message</span><span class="o">=</span><span class="n">message</span><span class="p">,</span> <span class="n">path</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">list_path</span><span class="p">)</span>
133           
134   
135     
136</pre></div></div></div>
137
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