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| <div class="section boost_icl_examples_user_groups" lang="en"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="boost_icl.examples.user_groups"></a><a class="link" href="user_groups.html" title="User groups">User groups</a> |
| </h3></div></div></div> |
| <p> |
| Example <span class="bold"><strong>user groups</strong></span> shows the availability |
| of set operations on <code class="computeroutput"><a class="link" href="../../boost/icl/interval_map.html" title="Class template interval_map">interval_maps</a></code>. |
| </p> |
| <p> |
| In the example there is a user group <code class="computeroutput"><span class="identifier">med_users</span></code> |
| of a hospital staff that has the authorisation to handle medical data of |
| patients. User group <code class="computeroutput"><span class="identifier">admin_users</span></code> |
| has access to administrative data like health insurance and financial data. |
| </p> |
| <p> |
| The membership for each user in one of the user groups has a time interval |
| of validity. The group membership begins and ends. |
| </p> |
| <div class="itemizedlist"><ul type="disc"> |
| <li> |
| Using a union operation <code class="computeroutput"><span class="special">+</span></code> |
| we can have an overview over the unified user groups and the membership |
| dates of employees. |
| </li> |
| <li> |
| Computing an intersection <code class="computeroutput"><span class="special">&</span></code> |
| shows who is member of both med_users and admin_users at what times. |
| </li> |
| </ul></div> |
| <p> |
| </p> |
| <p> |
| |
| </p> |
| <pre class="programlisting"><span class="comment">// The next line includes <boost/gregorian/date.hpp> |
| </span><span class="comment">// and a few lines of adapter code. |
| </span><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">icl</span><span class="special">/</span><span class="identifier">gregorian</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">icl</span><span class="special">/</span><span class="identifier">interval_map</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">std</span><span class="special">;</span> |
| <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">gregorian</span><span class="special">;</span> |
| <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">icl</span><span class="special">;</span> |
| |
| <span class="comment">// Type icl::set<string> collects the names a user group's members. Therefore |
| </span><span class="comment">// it needs to implement operator += that performs a set union on overlap of |
| </span><span class="comment">// intervals. |
| </span><span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">set</span><span class="special"><</span><span class="identifier">string</span><span class="special">></span> <span class="identifier">MemberSetT</span><span class="special">;</span> |
| |
| <span class="comment">// boost::gregorian::date is the domain type the interval map. |
| </span><span class="comment">// It's key values are therefore time intervals: discrete_interval<date>. The content |
| </span><span class="comment">// is the set of names: MemberSetT. |
| </span><span class="keyword">typedef</span> <span class="identifier">interval_map</span><span class="special"><</span><span class="identifier">date</span><span class="special">,</span> <span class="identifier">MemberSetT</span><span class="special">></span> <span class="identifier">MembershipT</span><span class="special">;</span> |
| |
| <span class="comment">// Collect user groups for medical and administrative staff and perform |
| </span><span class="comment">// union and intersection operations on the collected membership schedules. |
| </span><span class="keyword">void</span> <span class="identifier">user_groups</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="identifier">MemberSetT</span> <span class="identifier">mary_harry</span><span class="special">;</span> |
| <span class="identifier">mary_harry</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="string">"Mary"</span><span class="special">);</span> |
| <span class="identifier">mary_harry</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="string">"Harry"</span><span class="special">);</span> |
| |
| <span class="identifier">MemberSetT</span> <span class="identifier">diana_susan</span><span class="special">;</span> |
| <span class="identifier">diana_susan</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="string">"Diana"</span><span class="special">);</span> |
| <span class="identifier">diana_susan</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="string">"Susan"</span><span class="special">);</span> |
| |
| <span class="identifier">MemberSetT</span> <span class="identifier">chief_physician</span><span class="special">;</span> |
| <span class="identifier">chief_physician</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="string">"Dr.Jekyll"</span><span class="special">);</span> |
| |
| <span class="identifier">MemberSetT</span> <span class="identifier">director_of_admin</span><span class="special">;</span> |
| <span class="identifier">director_of_admin</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="string">"Mr.Hyde"</span><span class="special">);</span> |
| |
| <span class="comment">//----- Collecting members of user group: med_users ------------------- |
| </span> <span class="identifier">MembershipT</span> <span class="identifier">med_users</span><span class="special">;</span> |
| |
| <span class="identifier">med_users</span><span class="special">.</span><span class="identifier">add</span><span class="special">(</span> <span class="comment">// add and element |
| </span> <span class="identifier">make_pair</span><span class="special">(</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span> |
| <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-01-01"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-12-31"</span><span class="special">)),</span> <span class="identifier">mary_harry</span><span class="special">));</span> |
| |
| <span class="identifier">med_users</span> <span class="special">+=</span> <span class="comment">// element addition can also be done via operator += |
| </span> <span class="identifier">make_pair</span><span class="special">(</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span> |
| <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-01-15"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-12-31"</span><span class="special">)),</span> |
| <span class="identifier">chief_physician</span><span class="special">);</span> |
| |
| <span class="identifier">med_users</span> <span class="special">+=</span> |
| <span class="identifier">make_pair</span><span class="special">(</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span> |
| <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-02-01"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-10-15"</span><span class="special">)),</span> |
| <span class="identifier">director_of_admin</span><span class="special">);</span> |
| |
| <span class="comment">//----- Collecting members of user group: admin_users ------------------ |
| </span> <span class="identifier">MembershipT</span> <span class="identifier">admin_users</span><span class="special">;</span> |
| |
| <span class="identifier">admin_users</span> <span class="special">+=</span> <span class="comment">// element addition can also be done via operator += |
| </span> <span class="identifier">make_pair</span><span class="special">(</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span> |
| <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-03-20"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-30"</span><span class="special">)),</span> <span class="identifier">diana_susan</span><span class="special">);</span> |
| |
| <span class="identifier">admin_users</span> <span class="special">+=</span> |
| <span class="identifier">make_pair</span><span class="special">(</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span> |
| <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-01-15"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-12-31"</span><span class="special">)),</span> |
| <span class="identifier">chief_physician</span><span class="special">);</span> |
| |
| <span class="identifier">admin_users</span> <span class="special">+=</span> |
| <span class="identifier">make_pair</span><span class="special">(</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span> |
| <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-02-01"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-10-15"</span><span class="special">)),</span> |
| <span class="identifier">director_of_admin</span><span class="special">);</span> |
| |
| <span class="identifier">MembershipT</span> <span class="identifier">all_users</span> <span class="special">=</span> <span class="identifier">med_users</span> <span class="special">+</span> <span class="identifier">admin_users</span><span class="special">;</span> |
| |
| <span class="identifier">MembershipT</span> <span class="identifier">super_users</span> <span class="special">=</span> <span class="identifier">med_users</span> <span class="special">&</span> <span class="identifier">admin_users</span><span class="special">;</span> |
| |
| <span class="identifier">MembershipT</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">med_</span> <span class="special">=</span> <span class="identifier">med_users</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"----- Membership of medical staff -----------------------------------\n"</span><span class="special">;</span> |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">med_</span> <span class="special">!=</span> <span class="identifier">med_users</span><span class="special">.</span><span class="identifier">end</span><span class="special">())</span> |
| <span class="special">{</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">when</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">med_</span><span class="special">).</span><span class="identifier">first</span><span class="special">;</span> |
| <span class="comment">// Who is member of group med_users within the time interval 'when' ? |
| </span> <span class="identifier">MemberSetT</span> <span class="identifier">who</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">med_</span><span class="special">++).</span><span class="identifier">second</span><span class="special">;</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"["</span> <span class="special"><<</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">" - "</span> <span class="special"><<</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]"</span> |
| <span class="special"><<</span> <span class="string">": "</span> <span class="special"><<</span> <span class="identifier">who</span> <span class="special"><<</span> <span class="identifier">endl</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">MembershipT</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">admin_</span> <span class="special">=</span> <span class="identifier">admin_users</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"----- Membership of admin staff -------------------------------------\n"</span><span class="special">;</span> |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">admin_</span> <span class="special">!=</span> <span class="identifier">admin_users</span><span class="special">.</span><span class="identifier">end</span><span class="special">())</span> |
| <span class="special">{</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">when</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">admin_</span><span class="special">).</span><span class="identifier">first</span><span class="special">;</span> |
| <span class="comment">// Who is member of group admin_users within the time interval 'when' ? |
| </span> <span class="identifier">MemberSetT</span> <span class="identifier">who</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">admin_</span><span class="special">++).</span><span class="identifier">second</span><span class="special">;</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"["</span> <span class="special"><<</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">" - "</span> <span class="special"><<</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]"</span> |
| <span class="special"><<</span> <span class="string">": "</span> <span class="special"><<</span> <span class="identifier">who</span> <span class="special"><<</span> <span class="identifier">endl</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">MembershipT</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">all_</span> <span class="special">=</span> <span class="identifier">all_users</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"----- Membership of all users (med + admin) -------------------------\n"</span><span class="special">;</span> |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">all_</span> <span class="special">!=</span> <span class="identifier">all_users</span><span class="special">.</span><span class="identifier">end</span><span class="special">())</span> |
| <span class="special">{</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">when</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">all_</span><span class="special">).</span><span class="identifier">first</span><span class="special">;</span> |
| <span class="comment">// Who is member of group med_users OR admin_users ? |
| </span> <span class="identifier">MemberSetT</span> <span class="identifier">who</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">all_</span><span class="special">++).</span><span class="identifier">second</span><span class="special">;</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"["</span> <span class="special"><<</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">" - "</span> <span class="special"><<</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]"</span> |
| <span class="special"><<</span> <span class="string">": "</span> <span class="special"><<</span> <span class="identifier">who</span> <span class="special"><<</span> <span class="identifier">endl</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">MembershipT</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">super_</span> <span class="special">=</span> <span class="identifier">super_users</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"----- Membership of super users: intersection(med,admin) ------------\n"</span><span class="special">;</span> |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">super_</span> <span class="special">!=</span> <span class="identifier">super_users</span><span class="special">.</span><span class="identifier">end</span><span class="special">())</span> |
| <span class="special">{</span> |
| <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">when</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">super_</span><span class="special">).</span><span class="identifier">first</span><span class="special">;</span> |
| <span class="comment">// Who is member of group med_users AND admin_users ? |
| </span> <span class="identifier">MemberSetT</span> <span class="identifier">who</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">super_</span><span class="special">++).</span><span class="identifier">second</span><span class="special">;</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"["</span> <span class="special"><<</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">" - "</span> <span class="special"><<</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">when</span><span class="special">)</span> <span class="special"><<</span> <span class="string">"]"</span> |
| <span class="special"><<</span> <span class="string">": "</span> <span class="special"><<</span> <span class="identifier">who</span> <span class="special"><<</span> <span class="identifier">endl</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="special">}</span> |
| |
| |
| <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">">>Interval Container Library: Sample user_groups.cpp <<\n"</span><span class="special">;</span> |
| <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"-------------------------------------------------------\n"</span><span class="special">;</span> |
| <span class="identifier">user_groups</span><span class="special">();</span> |
| <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="comment">// Program output: |
| </span><span class="comment">/*----------------------------------------------------------------------------- |
| >>Interval Container Library: Sample user_groups.cpp << |
| ------------------------------------------------------- |
| ----- Membership of medical staff ----------------------------------- |
| [2008-Jan-01 - 2008-Jan-14]: Harry Mary |
| [2008-Jan-15 - 2008-Jan-31]: Dr.Jekyll Harry Mary |
| [2008-Feb-01 - 2008-Oct-15]: Dr.Jekyll Harry Mary Mr.Hyde |
| [2008-Oct-16 - 2008-Dec-31]: Dr.Jekyll Harry Mary |
| ----- Membership of admin staff ------------------------------------- |
| [2008-Jan-15 - 2008-Jan-31]: Dr.Jekyll |
| [2008-Feb-01 - 2008-Mar-19]: Dr.Jekyll Mr.Hyde |
| [2008-Mar-20 - 2008-Sep-30]: Diana Dr.Jekyll Mr.Hyde Susan |
| [2008-Oct-01 - 2008-Oct-15]: Dr.Jekyll Mr.Hyde |
| [2008-Oct-16 - 2008-Dec-31]: Dr.Jekyll |
| ----- Membership of all users (med + admin) ------------------------- |
| [2008-Jan-01 - 2008-Jan-14]: Harry Mary |
| [2008-Jan-15 - 2008-Jan-31]: Dr.Jekyll Harry Mary |
| [2008-Feb-01 - 2008-Mar-19]: Dr.Jekyll Harry Mary Mr.Hyde |
| [2008-Mar-20 - 2008-Sep-30]: Diana Dr.Jekyll Harry Mary Mr.Hyde Susan |
| [2008-Oct-01 - 2008-Oct-15]: Dr.Jekyll Harry Mary Mr.Hyde |
| [2008-Oct-16 - 2008-Dec-31]: Dr.Jekyll Harry Mary |
| ----- Membership of super users: intersection(med,admin) ------------ |
| [2008-Jan-15 - 2008-Jan-31]: Dr.Jekyll |
| [2008-Feb-01 - 2008-Oct-15]: Dr.Jekyll Mr.Hyde |
| [2008-Oct-16 - 2008-Dec-31]: Dr.Jekyll |
| -----------------------------------------------------------------------------*/</span> |
| </pre> |
| <p> |
| </p> |
| <p> |
| </p> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2007 -2010 Joachim Faulhaber<br>Copyright © 1999 -2006 Cortex Software GmbH<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
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