NEW Restruct launcher source code. Separate classes in different files to improve...
[anna.git] / example / diameter / launcher / MyDiameterEntity.cpp
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+// ANNA - Anna is Not Nothingness Anymore                                                         //
+//                                                                                                //
+// (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
+//                                                                                                //
+// See project site at http://redmine.teslayout.com/projects/anna-suite                           //
+// See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
+
+
+// Project
+#include <anna/core/core.hpp>
+#include <anna/diameter/functions.hpp>
+#include <anna/time/functions.hpp>
+#include <anna/diameter.comm/Response.hpp>
+
+// Process
+#include "MyDiameterEntity.hpp"
+#include "Launcher.hpp"
+
+// Auxiliary message for sendings
+extern anna::diameter::comm::Message G_commMsgSent2e, G_commMsgFwd2c;
+extern anna::diameter::codec::Message G_codecMsg, G_codecAnsMsg;
+extern anna::Recycler<anna::diameter::comm::Message> G_commMessages; // create on requests forwards without programmed answer / release in answers forward
+
+
+void MyDiameterEntity::eventRequest(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
+throw(anna::RuntimeException) {
+  LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventRequest", ANNA_FILE_LOCATION));
+  // Performance stats:
+  Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
+  CommandLine& cl(anna::CommandLine::instantiate());
+  // CommandId:
+  anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
+  LOGDEBUG
+  (
+    std::string msg = "Request received: ";
+    msg += anna::diameter::functions::commandIdAsPairString(cid);
+    msg += " | DiameterServer: ";
+    msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
+    msg += " | EventTime: ";
+    msg += anna::time::functions::currentTimeAsString();
+    anna::Logger::debug(msg, ANNA_FILE_LOCATION);
+  );
+
+  // Write reception
+  if(my_app.logEnabled()) my_app.writeLogFile(message, "recvfe", clientSession->asString());
+
+  // Lookup reacting answers list:
+  int code = cid.first;
+  anna::diameter::codec::Message *answer_message = a_reactingAnswers.getMessage(code);
+  if (answer_message) {
+    // Prepare answer:
+    my_app.getCommunicator()->prepareAnswer(answer_message, message);
+
+    try {
+      G_commMsgSent2e.setBody(answer_message->code());
+      /* response = NULL =*/clientSession->send(&G_commMsgSent2e);
+
+      if(my_app.logEnabled()) my_app.writeLogFile(*answer_message, "sent2e", clientSession->asString());
+    } catch(anna::RuntimeException &ex) {
+      ex.trace();
+
+      if(my_app.logEnabled()) my_app.writeLogFile(*answer_message, "send2eError", clientSession->asString());
+    }
+
+    // Pop front the reacting answer:
+    a_reactingAnswers.nextMessage(code);
+    return;
+  }
+
+  LOGDEBUG
+  (
+    std::string msg = "No answers programmed (maybe sold out) for request coming from entity: ";
+    msg += anna::diameter::functions::commandIdAsPairString(cid);
+    anna::Logger::debug(msg, ANNA_FILE_LOCATION);
+  );
+
+  // not found: forward to client (if exists)
+  // Forward to client:
+  anna::diameter::comm::LocalServer *localServer = my_app.getDiameterLocalServer();
+
+  if(localServer && (cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) /* don't forward CER */) {
+    try {
+      anna::diameter::comm::Message *msg = G_commMessages.create();
+      msg->updateEndToEnd(false); // end-to-end will be kept
+      msg->setBody(message);
+      msg->setRequestClientSessionKey(clientSession->getKey());
+      bool success = localServer->send(msg);
+
+      // Detailed log:
+      if(my_app.logEnabled()) {
+        anna::diameter::comm::ServerSession *usedServerSession = localServer->getLastUsedResource();
+        std::string detail = usedServerSession ? usedServerSession->asString() : "<null server session>"; // esto no deberia ocurrir
+        my_app.writeLogFile(message, (success ? "fwd2c" : "fwd2cError"), detail);
+      }
+    } catch(anna::RuntimeException &ex) {
+      ex.trace();
+    }
+  }
+}
+
+void MyDiameterEntity::eventResponse(const anna::diameter::comm::Response &response)
+throw(anna::RuntimeException) {
+  LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventResponse", ANNA_FILE_LOCATION));
+  Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
+  CommandLine& cl(anna::CommandLine::instantiate());
+  anna::diameter::comm::ClassCode::_v code = response.getClassCode();
+  anna::diameter::comm::Response::ResultCode::_v result = response.getResultCode();
+  anna::diameter::comm::Message* request = const_cast<anna::diameter::comm::Message*>(response.getRequest());
+  const anna::DataBlock* message = response.getMessage();
+  const anna::diameter::comm::ClientSession *clientSession = static_cast<const anna::diameter::comm::ClientSession *>(response.getSession());
+  bool isBindResponse = (code == anna::diameter::comm::ClassCode::Bind);
+  bool isApplicationMessage = (code == anna::diameter::comm::ClassCode::ApplicationMessage);
+  bool contextExpired = (result == anna::diameter::comm::Response::ResultCode::Timeout);
+  bool isUnavailable = (result == anna::diameter::comm::Response::ResultCode::DiameterUnavailable);
+  bool isOK = (result == anna::diameter::comm::Response::ResultCode::Success);
+  // CommandId:
+  anna::diameter::CommandId request_cid = request->getCommandId();
+  LOGDEBUG
+  (
+    std::string msg = "Response received for original diameter request: ";
+    msg += anna::diameter::functions::commandIdAsPairString(request_cid);
+    msg += " | Response: ";
+    msg += response.asString();
+    msg += " | DiameterServer: ";
+    msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
+    msg += " | EventTime: ";
+    msg += anna::time::functions::currentTimeAsString();
+    anna::Logger::debug(msg, ANNA_FILE_LOCATION);
+  );
+
+  if(isUnavailable) {
+    //if (isApplicationMessage)
+    LOGWARNING(anna::Logger::warning("Diameter entity unavailable for Diameter Request", ANNA_FILE_LOCATION));
+  }
+
+  if(contextExpired) {
+    //if (isApplicationMessage)
+    LOGWARNING(anna::Logger::warning("Context Expired for Diameter Request which was sent to the entity", ANNA_FILE_LOCATION));
+
+    if(request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) {  // don't trace CEA
+      if(my_app.logEnabled()) my_app.writeLogFile(*request, "req2e-expired", clientSession->asString());
+    }
+  }
+
+  if(isOK) {
+    LOGDEBUG(
+      std::string msg = "Received response for diameter message:  ";
+      msg += anna::diameter::functions::commandIdAsPairString(request_cid);
+      anna::Logger::debug(msg, ANNA_FILE_LOCATION);
+    );
+    // Write reception
+    bool alreadyDecodedOnG_codecMsg = false;
+
+    if(request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) {  // don't trace CEA
+      if(my_app.logEnabled()) {
+        my_app.writeLogFile(*message, "recvfe", clientSession->asString());
+        alreadyDecodedOnG_codecMsg = true;
+      }
+    }
+
+    // Forward to client:
+    anna::diameter::comm::LocalServer *localServer = my_app.getDiameterLocalServer();
+
+    if(localServer && (request_cid != anna::diameter::helpers::base::COMMANDID__Capabilities_Exchange_Request) /* don't forward CEA */) {
+      try {
+        G_commMsgFwd2c.updateEndToEnd(false); // end-to-end will be kept
+        G_commMsgFwd2c.setBody(*message);
+        bool success = localServer->send(&G_commMsgFwd2c, request->getRequestServerSessionKey());
+        G_commMessages.release(request);
+        // Detailed log:
+        anna::diameter::comm::ServerSession *usedServerSession = my_app.getMyDiameterEngine()->findServerSession(request->getRequestServerSessionKey());
+        std::string detail = usedServerSession ? usedServerSession->asString() : "<null server session>"; // esto no deberia ocurrir
+
+        if(my_app.logEnabled()) {
+          if(alreadyDecodedOnG_codecMsg)
+            my_app.writeLogFile(G_codecMsg, (success ? "fwd2c" : "fwd2cError"), detail);
+          else
+            my_app.writeLogFile(*message, (success ? "fwd2c" : "fwd2cError"), detail);
+        }
+      } catch(anna::RuntimeException &ex) {
+        ex.trace();
+      }
+    }
+  }
+
+  // Triggering burst:
+  if(isOK || contextExpired) my_app.sendBurstMessage();
+}
+
+void MyDiameterEntity::eventUnknownResponse(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
+throw(anna::RuntimeException) {
+  LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventUnknownResponse", ANNA_FILE_LOCATION));
+  // Performance stats:
+  Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
+  // CommandId:
+  anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
+  LOGDEBUG
+  (
+    std::string msg = "Out-of-context response received from entity: ";
+    msg += anna::diameter::functions::commandIdAsPairString(cid);
+    msg += " | DiameterServer: ";
+    msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
+    msg += " | EventTime: ";
+    msg += anna::time::functions::currentTimeAsString();
+    anna::Logger::debug(msg, ANNA_FILE_LOCATION);
+  );
+
+  // Write reception
+  if(my_app.logEnabled()) my_app.writeLogFile(message, "recvfe-ans-unknown", clientSession->asString());
+}
+
+void MyDiameterEntity::eventDPA(anna::diameter::comm::ClientSession *clientSession, const anna::DataBlock &message)
+throw(anna::RuntimeException) {
+  LOGMETHOD(anna::TraceMethod tm("launcher::MyDiameterEntity", "eventDPA", ANNA_FILE_LOCATION));
+  // Performance stats:
+  Launcher& my_app = static_cast <Launcher&>(anna::app::functions::getApp());
+  // CommandId:
+  anna::diameter::CommandId cid = anna::diameter::codec::functions::getCommandId(message);
+  LOGDEBUG
+  (
+    std::string msg = "Disconnect-Peer-Answer received from entity: ";
+    msg += anna::diameter::functions::commandIdAsPairString(cid);
+    msg += " | DiameterServer: ";
+    msg += anna::functions::socketLiteralAsString(clientSession->getAddress(), clientSession->getPort());
+    msg += " | EventTime: ";
+    msg += anna::time::functions::currentTimeAsString();
+    anna::Logger::debug(msg, ANNA_FILE_LOCATION);
+  );
+
+  // Write reception
+  if(my_app.logEnabled()) my_app.writeLogFile(message, "recvfe", clientSession->asString());
+}