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51  <h1>Source code for sas.perspectives.calculator.load_thread</h1><div class="highlight"><pre>
52<span class="sd">&quot;&quot;&quot;</span>
53<span class="sd">    Thread handler used to load data</span>
54<span class="sd">&quot;&quot;&quot;</span>
55<span class="kn">import</span> <span class="nn">time</span>
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<span class="kn">from</span> <span class="nn">sas.dataloader.loader</span> <span class="kn">import</span> <span class="n">Loader</span>
58       
59<div class="viewcode-block" id="DataReader"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.load_thread.DataReader">[docs]</a><span class="k">class</span> <span class="nc">DataReader</span><span class="p">(</span><span class="n">CalcThread</span><span class="p">):</span>
60    <span class="sd">&quot;&quot;&quot;</span>
61<span class="sd">        Load a data given a filename</span>
62<span class="sd">    &quot;&quot;&quot;</span>
63    <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">completefn</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
64                 <span class="n">updatefn</span>   <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
65                 <span class="n">yieldtime</span>  <span class="o">=</span> <span class="mf">0.01</span><span class="p">,</span>
66                 <span class="n">worktime</span>   <span class="o">=</span> <span class="mf">0.01</span>
67                 <span class="p">):</span>
68        <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>
69                 <span class="n">updatefn</span><span class="p">,</span>
70                 <span class="n">yieldtime</span><span class="p">,</span>
71                 <span class="n">worktime</span><span class="p">)</span>
72        <span class="bp">self</span><span class="o">.</span><span class="n">path</span> <span class="o">=</span> <span class="n">path</span>
73        <span class="c">#Instantiate a loader </span>
74        <span class="bp">self</span><span class="o">.</span><span class="n">loader</span> <span class="o">=</span> <span class="n">Loader</span><span class="p">()</span>
75        <span class="bp">self</span><span class="o">.</span><span class="n">starttime</span> <span class="o">=</span> <span class="mi">0</span> 
76       
77<div class="viewcode-block" id="DataReader.isquit"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.load_thread.DataReader.isquit">[docs]</a>    <span class="k">def</span> <span class="nf">isquit</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
78        <span class="sd">&quot;&quot;&quot;</span>
79<span class="sd">             @raise KeyboardInterrupt: when the thread is interrupted</span>
80<span class="sd">        &quot;&quot;&quot;</span>
81        <span class="k">try</span><span class="p">:</span>
82            <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>
83        <span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">:</span>
84            <span class="k">raise</span> <span class="ne">KeyboardInterrupt</span>   
85       
86        </div>
87<div class="viewcode-block" id="DataReader.compute"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.load_thread.DataReader.compute">[docs]</a>    <span class="k">def</span> <span class="nf">compute</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
88        <span class="sd">&quot;&quot;&quot;</span>
89<span class="sd">            read some data</span>
90<span class="sd">        &quot;&quot;&quot;</span>
91        <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>
92        <span class="k">try</span><span class="p">:</span>
93            <span class="n">data</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="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">)</span>
94            <span class="bp">self</span><span class="o">.</span><span class="n">complete</span><span class="p">(</span><span class="n">data</span><span class="o">=</span><span class="n">data</span><span class="p">)</span>
95        <span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">:</span>
96            <span class="c"># Thread was interrupted, just proceed and re-raise.</span>
97            <span class="c"># Real code should not print, but this is an example...</span>
98            <span class="k">raise</span>
99        </div></div>
100<div class="viewcode-block" id="GenReader"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.load_thread.GenReader">[docs]</a><span class="k">class</span> <span class="nc">GenReader</span><span class="p">(</span><span class="n">CalcThread</span><span class="p">):</span>
101    <span class="sd">&quot;&quot;&quot;</span>
102<span class="sd">        Load a sld data given a filename</span>
103<span class="sd">    &quot;&quot;&quot;</span>
104    <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> 
105                 <span class="n">completefn</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
106                 <span class="n">updatefn</span>   <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
107                 <span class="n">yieldtime</span>  <span class="o">=</span> <span class="mf">0.01</span><span class="p">,</span>
108                 <span class="n">worktime</span>   <span class="o">=</span> <span class="mf">0.01</span>
109                 <span class="p">):</span>
110        <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>
111                 <span class="n">updatefn</span><span class="p">,</span>
112                 <span class="n">yieldtime</span><span class="p">,</span>
113                 <span class="n">worktime</span><span class="p">)</span>
114        <span class="bp">self</span><span class="o">.</span><span class="n">path</span> <span class="o">=</span> <span class="n">path</span>
115        <span class="c">#Instantiate a loader </span>
116        <span class="bp">self</span><span class="o">.</span><span class="n">loader</span> <span class="o">=</span> <span class="n">loader</span>
117        <span class="bp">self</span><span class="o">.</span><span class="n">starttime</span> <span class="o">=</span> <span class="mi">0</span> 
118       
119<div class="viewcode-block" id="GenReader.isquit"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.load_thread.GenReader.isquit">[docs]</a>    <span class="k">def</span> <span class="nf">isquit</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
120        <span class="sd">&quot;&quot;&quot;</span>
121<span class="sd">             @raise KeyboardInterrupt: when the thread is interrupted</span>
122<span class="sd">        &quot;&quot;&quot;</span>
123        <span class="k">try</span><span class="p">:</span>
124            <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>
125        <span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">:</span>
126            <span class="k">raise</span> <span class="ne">KeyboardInterrupt</span>   
127       
128        </div>
129<div class="viewcode-block" id="GenReader.compute"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.load_thread.GenReader.compute">[docs]</a>    <span class="k">def</span> <span class="nf">compute</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
130        <span class="sd">&quot;&quot;&quot;</span>
131<span class="sd">            read some data</span>
132<span class="sd">        &quot;&quot;&quot;</span>
133        <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>
134        <span class="k">try</span><span class="p">:</span>
135            <span class="n">data</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">read</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span><span class="p">)</span>
136            <span class="bp">self</span><span class="o">.</span><span class="n">complete</span><span class="p">(</span><span class="n">data</span><span class="o">=</span><span class="n">data</span><span class="p">)</span>
137        <span class="k">except</span><span class="p">:</span>
138            <span class="c"># Thread was interrupted, just proceed and re-raise.</span>
139            <span class="c"># Real code should not print, but this is an example...</span>
140            <span class="k">raise</span>
141            </div></div>
142</pre></div>
143
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