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<h1>ProxyManager.cc</h1><a href="a00119.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Package : omniEvents</span>
<a name="l00002"></a>00002 <span class="comment">// ProxyManager.cc Created : 2003/12/04</span>
<a name="l00003"></a>00003 <span class="comment">// Author : Alex Tingle</span>
<a name="l00004"></a>00004 <span class="comment">//</span>
<a name="l00005"></a>00005 <span class="comment">// Copyright (C) 2003-2005 Alex Tingle.</span>
<a name="l00006"></a>00006 <span class="comment">//</span>
<a name="l00007"></a>00007 <span class="comment">// This file is part of the omniEvents application.</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009 <span class="comment">// omniEvents is free software; you can redistribute it and/or</span>
<a name="l00010"></a>00010 <span class="comment">// modify it under the terms of the GNU Lesser General Public</span>
<a name="l00011"></a>00011 <span class="comment">// License as published by the Free Software Foundation; either</span>
<a name="l00012"></a>00012 <span class="comment">// version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00013"></a>00013 <span class="comment">//</span>
<a name="l00014"></a>00014 <span class="comment">// omniEvents is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00017"></a>00017 <span class="comment">// Lesser General Public License for more details.</span>
<a name="l00018"></a>00018 <span class="comment">//</span>
<a name="l00019"></a>00019 <span class="comment">// You should have received a copy of the GNU Lesser General Public</span>
<a name="l00020"></a>00020 <span class="comment">// License along with this library; if not, write to the Free Software</span>
<a name="l00021"></a>00021 <span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00022"></a>00022 <span class="comment">//</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="a00120.html">ProxyManager.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="a00118.html">PersistNode.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="a00116.html">Orb.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="a00114.html">omniEventsLog.h</a>"</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#include <string></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <map></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <assert.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <memory></span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">namespace </span>OmniEvents {
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="comment">//</span>
<a name="l00037"></a>00037 <span class="comment">// ProxyManager</span>
<a name="l00038"></a>00038 <span class="comment">//</span>
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="keywordtype">void</span>
<a name="l00041"></a><a class="code" href="a00062.html#a0">00041</a> <a class="code" href="a00062.html#a0">ProxyManager::etherealize</a>(
<a name="l00042"></a>00042 <span class="keyword">const</span> PortableServer::ObjectId& oid,
<a name="l00043"></a>00043 PortableServer::POA_ptr adapter,
<a name="l00044"></a>00044 PortableServer::Servant serv,
<a name="l00045"></a>00045 CORBA::Boolean cleanup_in_progress,
<a name="l00046"></a>00046 CORBA::Boolean remaining_activations
<a name="l00047"></a>00047 )
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 auto_ptr<Proxy> narrowed( dynamic_cast<Proxy*>(serv) );
<a name="l00050"></a>00050 assert(narrowed.get()!=NULL);
<a name="l00051"></a>00051 set<Proxy*>::iterator pos =<a class="code" href="a00062.html#p0">_servants</a>.find(narrowed.get());
<a name="l00052"></a>00052 <span class="keywordflow">if</span>(pos!=<a class="code" href="a00062.html#p0">_servants</a>.end())
<a name="l00053"></a>00053 <a class="code" href="a00062.html#p0">_servants</a>.erase(pos);
<a name="l00054"></a>00054 <span class="keywordflow">else</span>
<a name="l00055"></a>00055 <a class="code" href="a00116.html#a2">DB</a>(1,<span class="stringliteral">"\t\teh? - POA attempted to etherealize unknown servant."</span>);
<a name="l00056"></a>00056 <span class="comment">// memory freed when narrowed goes out of scope.</span>
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059
<a name="l00060"></a><a class="code" href="a00062.html#a1">00060</a> <span class="keywordtype">void</span> <a class="code" href="a00062.html#a1">ProxyManager::reincarnate</a>(<span class="keyword">const</span> <a class="code" href="a00060.html">PersistNode</a>& node)
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <span class="comment">// Reincarnate all connections from node's children.</span>
<a name="l00063"></a>00063 <span class="keywordflow">for</span>(map<string,PersistNode*>::const_iterator i=node.<a class="code" href="a00060.html#o0">_child</a>.begin();
<a name="l00064"></a>00064 i!=node.<a class="code" href="a00060.html#o0">_child</a>.end();
<a name="l00065"></a>00065 ++i)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 assert(i->second!=NULL);
<a name="l00068"></a>00068 PortableServer::Servant serv =
<a name="l00069"></a>00069 this->incarnate(PortableServer::ObjectId(),<a class="code" href="a00062.html#p1">_managedPoa</a>);
<a name="l00070"></a>00070 <a class="code" href="a00061.html">Proxy</a>* proxy =dynamic_cast<Proxy*>(serv);
<a name="l00071"></a>00071 assert(proxy!=NULL);
<a name="l00072"></a>00072 <span class="keywordflow">try</span>
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 proxy-><a class="code" href="a00061.html#a1">reincarnate</a>(i->first,*(i->second));
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076 <span class="keywordflow">catch</span>(CORBA::BAD_PARAM& ex)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="comment">// This will happen when IOR fails to narrow.</span>
<a name="l00079"></a>00079 <a class="code" href="a00116.html#a2">DB</a>(5,<span class="stringliteral">"Failed to reincarnate proxy: "</span><<i->first.c_str());
<a name="l00080"></a>00080 <a class="code" href="a00062.html#p0">_servants</a>.erase(proxy);
<a name="l00081"></a>00081 <span class="keyword">delete</span> proxy;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a>00086
<a name="l00087"></a><a class="code" href="a00062.html#a2">00087</a> <span class="keywordtype">void</span> <a class="code" href="a00062.html#a2">ProxyManager::output</a>(ostream& os)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089 <span class="keywordflow">for</span>(set<Proxy*>::iterator i =<a class="code" href="a00062.html#p0">_servants</a>.begin(); i!=<a class="code" href="a00062.html#p0">_servants</a>.end(); ++i)
<a name="l00090"></a>00090 {
<a name="l00091"></a>00091 (*i)->output(os);
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a>00095
<a name="l00096"></a><a class="code" href="a00062.html#b0">00096</a> <a class="code" href="a00062.html#b0">ProxyManager::ProxyManager</a>(PortableServer::POA_ptr p)
<a name="l00097"></a>00097 : <a class="code" href="a00073.html">Servant</a>(p),
<a name="l00098"></a>00098 _servants(),
<a name="l00099"></a>00099 _managedPoa(PortableServer::POA::_nil())
<a name="l00100"></a>00100 {}
<a name="l00101"></a>00101
<a name="l00102"></a>00102
<a name="l00103"></a><a class="code" href="a00062.html#b2">00103</a> <span class="keywordtype">void</span> <a class="code" href="a00062.html#b2">ProxyManager::activate</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* name)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <span class="keyword">using</span> <span class="keyword">namespace </span>PortableServer;
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="comment">// POLICIES:</span>
<a name="l00108"></a>00108 <span class="comment">// Lifespan =PERSISTENT // we can persist</span>
<a name="l00109"></a>00109 <span class="comment">// Assignment =USER_ID // write our own oid</span>
<a name="l00110"></a>00110 <span class="comment">// Uniqueness =[default] UNIQUE_ID // one servant per object</span>
<a name="l00111"></a>00111 <span class="comment">// ImplicitActivation=NO_IMPLICIT_ACTIVATION // disable auto activation</span>
<a name="l00112"></a>00112 <span class="comment">// RequestProcessing =USE_SERVANT_MANAGER</span>
<a name="l00113"></a>00113 <span class="comment">// ServantRetention =[default] RETAIN</span>
<a name="l00114"></a>00114 <span class="comment">// Thread =SINGLE_THREAD_MODEL // keep it simple</span>
<a name="l00115"></a>00115
<a name="l00116"></a>00116 CORBA::PolicyList policies;
<a name="l00117"></a>00117 policies.length(5);
<a name="l00118"></a>00118 policies[0]=<a class="code" href="a00073.html#p0">_poa</a>->create_lifespan_policy(PERSISTENT);
<a name="l00119"></a>00119 policies[1]=<a class="code" href="a00073.html#p0">_poa</a>->create_id_assignment_policy(USER_ID);
<a name="l00120"></a>00120 policies[2]=<a class="code" href="a00073.html#p0">_poa</a>->create_implicit_activation_policy(NO_IMPLICIT_ACTIVATION);
<a name="l00121"></a>00121 policies[3]=<a class="code" href="a00073.html#p0">_poa</a>->create_request_processing_policy(USE_SERVANT_MANAGER);
<a name="l00122"></a>00122 policies[4]=<a class="code" href="a00073.html#p0">_poa</a>->create_thread_policy(SINGLE_THREAD_MODEL);
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keywordflow">try</span>
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 <span class="comment">// Create a POA for this proxy type in this channel.</span>
<a name="l00127"></a>00127 CORBA::String_var parentName =<a class="code" href="a00073.html#p0">_poa</a>->the_name();
<a name="l00128"></a>00128 string poaName =string(parentName.in())+<span class="stringliteral">"."</span>+name;
<a name="l00129"></a>00129 POAManager_var parentManager =<a class="code" href="a00073.html#p0">_poa</a>->the_POAManager();
<a name="l00130"></a>00130 <a class="code" href="a00062.html#p1">_managedPoa</a>=<a class="code" href="a00073.html#p0">_poa</a>->create_POA(poaName.c_str(),parentManager.in(),policies);
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132 <span class="keywordflow">catch</span>(POA::AdapterAlreadyExists& ex) <span class="comment">// create_POA</span>
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <a class="code" href="a00116.html#a2">DB</a>(0,<span class="stringliteral">"ProxyManager::ProxyManager() - POA::AdapterAlreadyExists"</span>)
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136 <span class="keywordflow">catch</span>(POA::InvalidPolicy& ex) <span class="comment">// create_POA</span>
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 <a class="code" href="a00116.html#a2">DB</a>(0,<span class="stringliteral">"ProxyManager::ProxyManager() - POA::InvalidPolicy: "</span><<ex.index)
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="comment">// Destroy the policy objects (Not strictly necessary in omniORB)</span>
<a name="l00142"></a>00142 <span class="keywordflow">for</span>(CORBA::ULong i=0; i<policies.length(); ++i)
<a name="l00143"></a>00143 policies[i]->destroy();
<a name="l00144"></a>00144
<a name="l00145"></a>00145 string oidStr =string(name)+<span class="stringliteral">"Manager"</span>;
<a name="l00146"></a>00146 <a class="code" href="a00073.html#b1">activateObjectWithId</a>(oidStr.c_str());
<a name="l00147"></a>00147 PortableServer::ServantManager_var manager(_this());
<a name="l00148"></a>00148 <a class="code" href="a00062.html#p1">_managedPoa</a>->set_servant_manager(manager);
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151
<a name="l00152"></a><a class="code" href="a00062.html#b1">00152</a> <a class="code" href="a00062.html#b1">ProxyManager::~ProxyManager</a>()
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 <span class="comment">// pass</span>
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment">//</span>
<a name="l00159"></a>00159 <span class="comment">// Proxy</span>
<a name="l00160"></a>00160 <span class="comment">//</span>
<a name="l00161"></a>00161
<a name="l00162"></a>00162
<a name="l00163"></a><a class="code" href="a00061.html#a0">00163</a> <a class="code" href="a00061.html#a0">Proxy::~Proxy</a>()
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165 <span class="keywordflow">if</span>(!CORBA::is_nil(<a class="code" href="a00061.html#p0">_req</a>))
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 <a class="code" href="a00059.html#e0">Orb::inst</a>().<a class="code" href="a00059.html#a3">deferredRequest</a>(<a class="code" href="a00061.html#p0">_req</a>._retn());
<a name="l00168"></a>00168 <a class="code" href="a00061.html#p0">_req</a>=CORBA::Request::_nil();
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171
<a name="l00172"></a><a class="code" href="a00061.html#b0">00172</a> <a class="code" href="a00061.html#b0">Proxy::Proxy</a>(PortableServer::POA_ptr poa)
<a name="l00173"></a>00173 : <a class="code" href="a00073.html">Servant</a>(poa),
<a name="l00174"></a>00174 _req(CORBA::Request::_nil())
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 <span class="comment">// pass</span>
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a><a class="code" href="a00061.html#b1">00179</a> <span class="keywordtype">void</span> <a class="code" href="a00061.html#b1">Proxy::keyOutput</a>(ostream& os, <span class="keyword">const</span> <span class="keywordtype">char</span>* name)
<a name="l00180"></a>00180 {
<a name="l00181"></a>00181 PortableServer::POA_var parentPoa=<a class="code" href="a00073.html#p0">_poa</a>->the_parent();
<a name="l00182"></a>00182 CORBA::String_var channelName=parentPoa->the_name();
<a name="l00183"></a>00183
<a name="l00184"></a>00184 PortableServer::ObjectId_var oid=<a class="code" href="a00073.html#p0">_poa</a>->servant_to_id(<span class="keyword">this</span>);
<a name="l00185"></a>00185 CORBA::String_var oidStr =PortableServer::ObjectId_to_string(oid.in());
<a name="l00186"></a>00186 os<<<span class="stringliteral">"ecf/"</span><<channelName.in()<<<span class="stringliteral">"/"</span><<name<<<span class="stringliteral">"/"</span><<oidStr.in();
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a><a class="code" href="a00061.html#b2">00189</a> <span class="keywordtype">void</span> <a class="code" href="a00061.html#b2">Proxy::eraseKey</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* name)
<a name="l00190"></a>00190 {
<a name="l00191"></a>00191 <span class="keywordflow">if</span>(<a class="code" href="a00056.html#e0">omniEventsLog::exists</a>())
<a name="l00192"></a>00192 {
<a name="l00193"></a>00193 <span class="comment">// Remove this key from the persistency logfile.</span>
<a name="l00194"></a>00194 <a class="code" href="a00080.html">WriteLock</a> log;
<a name="l00195"></a>00195 log.<a class="code" href="a00080.html#o0">os</a><<<span class="stringliteral">"-"</span>;
<a name="l00196"></a>00196 <a class="code" href="a00061.html#b1">keyOutput</a>(log.<a class="code" href="a00080.html#o0">os</a>,name);
<a name="l00197"></a>00197 log.<a class="code" href="a00080.html#o0">os</a><<<span class="charliteral">'\n'</span>;
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200
<a name="l00201"></a><a class="code" href="a00061.html#b3">00201</a> <span class="keywordtype">void</span> <a class="code" href="a00061.html#b3">Proxy::basicOutput</a>(
<a name="l00202"></a>00202 ostream& os,
<a name="l00203"></a>00203 <span class="keyword">const</span> <span class="keywordtype">char</span>* name,
<a name="l00204"></a>00204 CORBA::Object_ptr target,
<a name="l00205"></a>00205 <span class="keyword">const</span> <span class="keywordtype">char</span>* extraAttributes
<a name="l00206"></a>00206 )
<a name="l00207"></a>00207 {
<a name="l00208"></a>00208 <a class="code" href="a00061.html#b1">keyOutput</a>(os,name);
<a name="l00209"></a>00209 <span class="keywordflow">if</span>(!CORBA::is_nil(target))
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 CORBA::String_var iorstr =<a class="code" href="a00059.html#e0">Orb::inst</a>().<a class="code" href="a00059.html#o0">_orb</a>->object_to_string(target);
<a name="l00212"></a>00212 os<<<span class="stringliteral">" IOR="</span><<iorstr.in();
<a name="l00213"></a>00213 <span class="keywordflow">if</span>(extraAttributes)
<a name="l00214"></a>00214 os<<extraAttributes;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 os<<<span class="stringliteral">" ;;\n"</span>;
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218
<a name="l00219"></a>00219
<a name="l00220"></a>00220 }; <span class="comment">// end namespace OmniEvents</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Aug 26 20:56:14 2005 for OmniEvents by
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