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<h1>problems_resource.cpp</h1><a href="a00231.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/***************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> file : $URL: https://frepple.svn.sourceforge.net/svnroot/frepple/trunk/src/model/problems_resource.cpp $</span>
<a name="l00003"></a>00003 <span class="comment"> version : $LastChangedRevision: 1315 $ $LastChangedBy: jdetaeye $</span>
<a name="l00004"></a>00004 <span class="comment"> date : $LastChangedDate: 2010-07-17 18:08:53 +0200 (Sat, 17 Jul 2010) $</span>
<a name="l00005"></a>00005 <span class="comment"> ***************************************************************************/</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="comment">/***************************************************************************</span>
<a name="l00008"></a>00008 <span class="comment"> * *</span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (C) 2007-2010 by Johan De Taeye *</span>
<a name="l00010"></a>00010 <span class="comment"> * *</span>
<a name="l00011"></a>00011 <span class="comment"> * This library is free software; you can redistribute it and/or modify it *</span>
<a name="l00012"></a>00012 <span class="comment"> * under the terms of the GNU Lesser General Public License as published *</span>
<a name="l00013"></a>00013 <span class="comment"> * by the Free Software Foundation; either version 2.1 of the License, or *</span>
<a name="l00014"></a>00014 <span class="comment"> * (at your option) any later version. *</span>
<a name="l00015"></a>00015 <span class="comment"> * *</span>
<a name="l00016"></a>00016 <span class="comment"> * This library is distributed in the hope that it will be useful, *</span>
<a name="l00017"></a>00017 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of *</span>
<a name="l00018"></a>00018 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser *</span>
<a name="l00019"></a>00019 <span class="comment"> * General Public License for more details. *</span>
<a name="l00020"></a>00020 <span class="comment"> * *</span>
<a name="l00021"></a>00021 <span class="comment"> * You should have received a copy of the GNU Lesser General Public *</span>
<a name="l00022"></a>00022 <span class="comment"> * License along with this library; if not, write to the Free Software *</span>
<a name="l00023"></a>00023 <span class="comment"> * Foundation Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,*</span>
<a name="l00024"></a>00024 <span class="comment"> * USA *</span>
<a name="l00025"></a>00025 <span class="comment"> * *</span>
<a name="l00026"></a>00026 <span class="comment"> ***************************************************************************/</span>
<a name="l00027"></a>00027
<a name="l00028"></a><a class="code" href="a00231.html#a342983a479ae7a921be5face83fdb029">00028</a> <span class="preprocessor">#define FREPPLE_CORE</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="a00218.html">frepple/model.h</a>"</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">namespace </span>frepple
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033
<a name="l00034"></a>00034
<a name="l00035"></a><a class="code" href="a00156.html#ac116e93a8091e58d4c9c7d73062e3688">00035</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">void</span> <a class="code" href="a00156.html#ac116e93a8091e58d4c9c7d73062e3688">Resource::updateProblems</a>()
<a name="l00036"></a>00036 {
<a name="l00037"></a>00037 <span class="comment">// Delete existing problems for this resource</span>
<a name="l00038"></a>00038 <a class="code" href="a00134.html#a53c01969a6eae0dbfff416560242b454">Problem::clearProblems</a>(*<span class="keyword">this</span>);
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="comment">// Problem detection disabled on this resource</span>
<a name="l00041"></a>00041 <span class="keywordflow">if</span> (!<a class="code" href="a00133.html#a060a1f4f9488fb2f287470127b59f5ec">getDetectProblems</a>()) <span class="keywordflow">return</span>;
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="comment">// Loop through the loadplans</span>
<a name="l00044"></a>00044 <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a> excessProblemStart;
<a name="l00045"></a>00045 <a class="code" href="a00049.html" title="This class represents a date and time with an accuracy of one second.">Date</a> shortageProblemStart;
<a name="l00046"></a>00046 <span class="keywordtype">bool</span> excessProblem = <span class="keyword">false</span>;
<a name="l00047"></a>00047 <span class="keywordtype">bool</span> shortageProblem = <span class="keyword">false</span>;
<a name="l00048"></a>00048 <span class="keywordtype">double</span> curMax(0.0);
<a name="l00049"></a>00049 <span class="keywordtype">double</span> shortageQty(0.0);
<a name="l00050"></a>00050 <span class="keywordtype">double</span> curMin(0.0);
<a name="l00051"></a>00051 <span class="keywordtype">double</span> excessQty(0.0);
<a name="l00052"></a>00052 <span class="keywordflow">for</span> (loadplanlist::const_iterator iter = loadplans.<a class="code" href="a00178.html#ad6fe958ddd6a9a63662a40079d777a2f">begin</a>();
<a name="l00053"></a>00053 iter != loadplans.<a class="code" href="a00178.html#a247a6dfded3b61f1aeb838719ac295bc">end</a>(); )
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="comment">// Process changes in the maximum or minimum targets</span>
<a name="l00056"></a>00056 <span class="keywordflow">if</span> (iter->getType() == 4)
<a name="l00057"></a>00057 curMax = iter->getMax();
<a name="l00058"></a>00058 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iter->getType() == 3)
<a name="l00059"></a>00059 curMin = iter->getMin();
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="comment">// Only consider the last loadplan for a certain date</span>
<a name="l00062"></a>00062 <span class="keyword">const</span> <a class="code" href="a00178.html" title="This class implements a &quot;sorted list&quot; data structure, sorting &quot;events&quot;...">TimeLine<LoadPlan>::Event</a> *f = &*(iter++);
<a name="l00063"></a>00063 <span class="keywordflow">if</span> (iter!=loadplans.<a class="code" href="a00178.html#a247a6dfded3b61f1aeb838719ac295bc">end</a>() && iter->getDate()==f->getDate()) <span class="keywordflow">continue</span>;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="comment">// Check against minimum target</span>
<a name="l00066"></a>00066 <span class="keywordtype">double</span> delta = f->getOnhand() - curMin;
<a name="l00067"></a>00067 <span class="keywordflow">if</span> (delta < -<a class="code" href="a00252.html#a42d90a6275119e1b4ce73c50f1867e60">ROUNDING_ERROR</a>)
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 <span class="keywordflow">if</span> (!shortageProblem)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 shortageProblemStart = f->getDate();
<a name="l00072"></a>00072 shortageQty = delta;
<a name="l00073"></a>00073 shortageProblem = <span class="keyword">true</span>;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (delta < shortageQty)
<a name="l00076"></a>00076 <span class="comment">// New shortage qty</span>
<a name="l00077"></a>00077 shortageQty = delta;
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079 <span class="keywordflow">else</span>
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 <span class="keywordflow">if</span> (shortageProblem)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 <span class="comment">// New problem now ends</span>
<a name="l00084"></a>00084 <span class="keywordflow">if</span> (f->getDate() != shortageProblemStart)
<a name="l00085"></a>00085 <span class="keyword">new</span> <a class="code" href="a00138.html" title="A problem of this class is created when a resource is loaded below its minimum during...">ProblemCapacityUnderload</a>(<span class="keyword">this</span>, <a class="code" href="a00050.html" title="This class defines a date-range, i.e. a start-date and end-date pair.">DateRange</a>(shortageProblemStart,
<a name="l00086"></a>00086 f->getDate()), -shortageQty);
<a name="l00087"></a>00087 shortageProblem = <span class="keyword">false</span>;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="comment">// Note that theoretically we can have a minimum and a maximum problem for</span>
<a name="l00092"></a>00092 <span class="comment">// the same moment in time.</span>
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">// Check against maximum target</span>
<a name="l00095"></a>00095 delta = f->getOnhand() - curMax;
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (delta > <a class="code" href="a00252.html#a42d90a6275119e1b4ce73c50f1867e60">ROUNDING_ERROR</a>)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <span class="keywordflow">if</span> (!excessProblem)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 excessProblemStart = f->getDate();
<a name="l00101"></a>00101 excessQty = delta;
<a name="l00102"></a>00102 excessProblem = <span class="keyword">true</span>;
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (delta > excessQty)
<a name="l00105"></a>00105 excessQty = delta;
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107 <span class="keywordflow">else</span>
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 <span class="keywordflow">if</span> (excessProblem)
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="comment">// New problem now ends</span>
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (f->getDate() != excessProblemStart)
<a name="l00113"></a>00113 <span class="keyword">new</span> <a class="code" href="a00137.html" title="A problem of this class is created when a resource is being overloaded during a certain...">ProblemCapacityOverload</a>(<span class="keyword">this</span>, excessProblemStart,
<a name="l00114"></a>00114 f->getDate(), excessQty);
<a name="l00115"></a>00115 excessProblem = <span class="keyword">false</span>;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00119"></a>00119 } <span class="comment">// End of for-loop through the loadplans</span>
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="comment">// The excess lasts till the end of the horizon...</span>
<a name="l00122"></a>00122 <span class="keywordflow">if</span> (excessProblem)
<a name="l00123"></a>00123 <span class="keyword">new</span> <a class="code" href="a00137.html" title="A problem of this class is created when a resource is being overloaded during a certain...">ProblemCapacityOverload</a>(<span class="keyword">this</span>, excessProblemStart,
<a name="l00124"></a>00124 Date::infiniteFuture, excessQty);
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="comment">// The shortage lasts till the end of the horizon...</span>
<a name="l00127"></a>00127 <span class="keywordflow">if</span> (shortageProblem)
<a name="l00128"></a>00128 <span class="keyword">new</span> <a class="code" href="a00138.html" title="A problem of this class is created when a resource is loaded below its minimum during...">ProblemCapacityUnderload</a>(<span class="keyword">this</span>, <a class="code" href="a00050.html" title="This class defines a date-range, i.e. a start-date and end-date pair.">DateRange</a>(shortageProblemStart,
<a name="l00129"></a>00129 Date::infiniteFuture), -shortageQty);
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132
<a name="l00133"></a><a class="code" href="a00138.html#a717cb990c20a07721dd0e404385b2729">00133</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">string</span> <a class="code" href="a00138.html#a717cb990c20a07721dd0e404385b2729">ProblemCapacityUnderload::getDescription</a>()<span class="keyword"> const</span>
<a name="l00134"></a>00134 <span class="keyword"></span>{
<a name="l00135"></a>00135 ostringstream ch;
<a name="l00136"></a>00136 ch << <span class="stringliteral">"Resource '"</span> << <a class="code" href="a00138.html#a75d3b808a39e02b3ab4c953e9aea0d60">getResource</a>() << <span class="stringliteral">"' has excess capacity of "</span> << qty;
<a name="l00137"></a>00137 <span class="keywordflow">return</span> ch.str();
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139
<a name="l00140"></a>00140
<a name="l00141"></a><a class="code" href="a00137.html#a2ea4a1ba2b3127a1100e066754b39a9f">00141</a> <a class="code" href="a00252.html#a99b94ab8c2f2a32277559c7b2b0a054c">DECLARE_EXPORT</a> <span class="keywordtype">string</span> <a class="code" href="a00137.html#a2ea4a1ba2b3127a1100e066754b39a9f">ProblemCapacityOverload::getDescription</a>()<span class="keyword"> const</span>
<a name="l00142"></a>00142 <span class="keyword"></span>{
<a name="l00143"></a>00143 ostringstream ch;
<a name="l00144"></a>00144 ch << <span class="stringliteral">"Resource '"</span> << <a class="code" href="a00137.html#aef00b4c5382cc41b3dd289cf707c327d">getResource</a>() << <span class="stringliteral">"' has capacity shortage of "</span> << qty;
<a name="l00145"></a>00145 <span class="keywordflow">return</span> ch.str();
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148 }
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