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<div class="navpath"><a class="el" href="dir_cfc6129efafb4deb1379318d01a4b532.html">modules</a> » <a class="el" href="dir_1fb731018ee43e669063132ba9c17b7b.html">webservice</a>
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<h1>webservice/module.cpp</h1><a href="a00220.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/modules/webservice/module.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>00028 <span class="preprocessor">#include "<a class="code" href="a00221.html" title="Header file for the module webservice.">module.h</a>"</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030
<a name="l00031"></a><a class="code" href="a00260.html">00031</a> <span class="keyword">namespace </span>module_webservice
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CommandWebservice::port = 6262;
<a name="l00035"></a>00035 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CommandWebservice::threads = 10;
<a name="l00036"></a>00036
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <a class="code" href="a00252.html#a49d85811d1043ff1f3d7df4be3d90138">MODULE_EXPORT</a> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="a00260.html#affa631a7e1b8fb8a6ec49526c26119ef">initialize</a>(<span class="keyword">const</span> <a class="code" href="a00030.html#abed9d8d8563f8322df35b7b9723d6f4f">CommandLoadLibrary::ParameterList</a>& z)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 <span class="comment">// Initialize only once</span>
<a name="l00041"></a>00041 <span class="keyword">static</span> <span class="keywordtype">bool</span> init = <span class="keyword">false</span>;
<a name="l00042"></a>00042 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* name = <span class="stringliteral">"webservice"</span>;
<a name="l00043"></a>00043 <span class="keywordflow">if</span> (init)
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Warning: Initializing module webservice more than once."</span> << endl;
<a name="l00046"></a>00046 <span class="keywordflow">return</span> name;
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048 init = <span class="keyword">true</span>;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="keywordflow">try</span>
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 <span class="comment">// Process the module parameters</span>
<a name="l00053"></a>00053 <span class="keywordflow">for</span> (CommandLoadLibrary::ParameterList::const_iterator x = z.begin();
<a name="l00054"></a>00054 x != z.end(); ++x)
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 <span class="keywordflow">if</span> (x->first == <span class="stringliteral">"port"</span>)
<a name="l00057"></a>00057 <a class="code" href="a00038.html#af5db9b7ba3bc713830533902e854ab91">CommandWebservice::setPort</a>(x->second.getInt());
<a name="l00058"></a>00058 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (x->first == <span class="stringliteral">"threads"</span>)
<a name="l00059"></a>00059 <a class="code" href="a00038.html#a905db982056e843dfc7f873c20084898">CommandWebservice::setThreads</a>(x->second.getInt());
<a name="l00060"></a>00060 <span class="keywordflow">else</span>
<a name="l00061"></a>00061 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Warning: Unrecognized parameter '"</span> << x->first << <span class="stringliteral">"'"</span> << endl;
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">// Initialize the Python extension.</span>
<a name="l00065"></a>00065 PyThreadState *myThreadState = PyGILState_GetThisThreadState();
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (!Py_IsInitialized() || !myThreadState)
<a name="l00067"></a>00067 <span class="keywordflow">throw</span> <a class="code" href="a00162.html" title="An exception of this type is thrown when the library runs into problems that are...">RuntimeException</a>(<span class="stringliteral">"Python isn't initialized correctly"</span>);
<a name="l00068"></a>00068 <span class="keywordflow">try</span>
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 <span class="comment">// Get the global lock.</span>
<a name="l00071"></a>00071 PyEval_RestoreThread(myThreadState);
<a name="l00072"></a>00072 <span class="comment">// Register new Python data types</span>
<a name="l00073"></a>00073 PythonInterpreter::registerGlobalMethod(
<a name="l00074"></a>00074 <span class="stringliteral">"webservice"</span>, <a class="code" href="a00038.html#a830ac29dd87f66c8390661c6115f7e43">CommandWebservice::pythonService</a>, METH_NOARGS,
<a name="l00075"></a>00075 <span class="stringliteral">"Starts the webservice to listen for HTTP requests"</span>);
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077 <span class="comment">// Release the global lock when leaving the function</span>
<a name="l00078"></a>00078 <span class="keywordflow">catch</span> (...)
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 PyEval_ReleaseLock();
<a name="l00081"></a>00081 <span class="keywordflow">throw</span>; <span class="comment">// Rethrow the exception</span>
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083 PyEval_ReleaseLock();
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 <span class="keywordflow">catch</span> (exception &e)
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <span class="comment">// Avoid throwing errors during the initialization!</span>
<a name="l00088"></a>00088 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Error: "</span> << e.what() << endl;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090 <span class="keywordflow">catch</span> (...)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <a class="code" href="a00257.html#a4af9f241e955122820c5e81ceb33edb5">logger</a> << <span class="stringliteral">"Error: unknown exception"</span> << endl;
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094 <span class="comment">// Return the name of the module</span>
<a name="l00095"></a>00095 <span class="keywordflow">return</span> name;
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097
<a name="l00098"></a>00098
<a name="l00099"></a>00099 } <span class="comment">// end namespace</span>
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