void AOSOutputExecutor::execute(AOSContext& context)
{
AString command;
if (
context.useRequestParameterPairs().exists(OVERRIDE_OUTPUT)
&& m_Services.useConfiguration().isOutputOverrideAllowed()
)
{
//a_Override requested and allowed
context.useRequestParameterPairs().get(OVERRIDE_OUTPUT, command);
}
else
{
command = context.getOutputCommand();
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
{
ARope rope("Default output generator overridden to: ",40);
rope.append(command);
context.useEventVisitor().startEvent(rope, AEventVisitor::EL_DEBUG);
}
}
if (command.equals("NOP"))
{
//a_If NOP was used force XML
m_Services.useConfiguration().setMimeTypeFromExt(ASW("xml",3), context);
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
context.useEventVisitor().startEvent(ASWNL("NOP detected, defaulting to XML output"), AEventVisitor::EL_DEBUG);
}
if (command.isEmpty())
{
if (!m_Services.useConfiguration().getAosDefaultOutputGenerator().isEmpty())
{
command.assign(m_Services.useConfiguration().getAosDefaultOutputGenerator());
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
{
ARope rope("No output generator specified, defaulting to: ",46);
rope.append(command);
context.useEventVisitor().startEvent(rope, AEventVisitor::EL_DEBUG);
}
}
else
{
if (context.useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
context.useEventVisitor().startEvent(ASW("No output generator, defaulting to XML",38), AEventVisitor::EL_DEBUG);
return;
}
}
try
{
//a_Find input command, if not found execute the default
OutputGeneratorContainer::iterator it = m_OutputGenerators.find(command);
if (it == m_OutputGenerators.end())
{
if (context.useEventVisitor().isLogging(AEventVisitor::EL_WARN))
{
ARope rope("Skipping unknown output generator: ",35);
rope.append(command);
context.useEventVisitor().startEvent(rope, AEventVisitor::EL_WARN);
}
}
else
{
ATimer timer(true);
//a_Generate output
if (context.useEventVisitor().isLogging(AEventVisitor::EL_INFO))
{
ARope rope("Generating output: ",19);
rope.append((*it).first);
context.useEventVisitor().startEvent(rope, AEventVisitor::EL_INFO);
}
if (context.useContextFlags().isClear(AOSContext::CTXFLAG_IS_AJAX))
{
context.useModel().overwriteElement(ASW("execute/output", 14)).addData(command);
//a_Publish timers
context.getRequestTimer().emitXml(context.useModel().overwriteElement(ASW("request_time",12)));
context.getContextTimer().emitXml(context.useModel().overwriteElement(ASW("context_time",12)));
}
//a_Generate output
AOSContext::ReturnCode ret = (*it).second->execute(context);
switch (ret)
{
case AOSContext::RETURN_OK:
break;
case AOSContext::RETURN_REDIRECT:
if (context.useEventVisitor().isLogging(AEventVisitor::EL_INFO))
{
context.useEventVisitor().startEvent(ASWNL("Output generator has done a redirect"), AEventVisitor::EL_DEBUG);
}
break;
default:
context.addError((*it).second->getClass(), ASWNL("Output generator returned neither OK nor REDIRECT"));
return;
}
//a_Event over
context.useEventVisitor().endEvent();
//a_Add execution time
(*it).second->addExecutionTimeSample(timer.getInterval());
}
}
catch(AException& ex)
{
AString strWhere("AOSOutputExecutor::execute(", 27);
strWhere.append(command);
strWhere.append(')');
context.addError(strWhere, ex.what());
AXmlElement& element = context.useModel().addElement("output_error");
element.addElement("where", strWhere);
element.addElement("exception", ex);
}
catch(...)
{
AString strWhere("AOSOutputExecutor::execute(", 27);
strWhere.append(command);
strWhere.append(')');
context.addError(strWhere, ASWNL("Unknown Exception"));
context.useModel().addElement("output_error").addData("Unknown Exception");
}
}
u4 AOSContextQueue_ErrorExecutor::_threadproc(AThread& thread)
{
AOSContextQueue_ErrorExecutor *pThis = dynamic_cast<AOSContextQueue_ErrorExecutor *>(thread.getThis());
AASSERT(&thread, pThis);
AOSContext *pContext = NULL;
thread.setRunning(true);
while(thread.isRun())
{
try
{
while (pContext = pThis->_nextContext())
{
#ifndef NDEBUG
if (!ADebugDumpable::isPointerValid(pContext))
{
AString error("AOSContext pointer is invalid: ");
error.append(AString::fromPointer(pContext));
AASSERT_EX(NULL, false, error);
continue;
}
#endif
pContext->useEventVisitor().startEvent(ASW("AOSContextQueue_ErrorExecutor: Processing error condition", 57));
//a_Should only be here if an error occured, if status not set >200, then assume 500
if (pContext->useResponseHeader().getStatusCode() == AHTTPResponseHeader::SC_200_Ok)
pContext->useResponseHeader().setStatusCode(AHTTPResponseHeader::SC_500_Internal_Server_Error);
//a_Check is socket was closed, if so do nothing else, we are done
if (pContext->useConnectionFlags().isSet(AOSContext::CONFLAG_IS_SOCKET_ERROR))
{
//a_Proceed
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
continue;
}
if (
pContext->useContextFlags().isSet(AOSContext::CTXFLAG_IS_RESPONSE_HEADER_SENT)
|| pContext->useContextFlags().isSet(AOSContext::CTXFLAG_IS_OUTPUT_SENT)
)
{
//a_Log to file, output is done already
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
}
else
{
//a_Add XSLT stylesheet for the error XML
//if (m_Services.useConfiguration().exists(ASW("/config/server/error-stylesheet",31)))
//{
// AString errorStylesheet;
// m_Services.useConfiguration().emitString(ASW("/config/server/error-stylesheet",31), errorStylesheet);
// pContext->useModelXmlDocument().addInstruction(AXmlInstruction::XML_STYLESHEET)
// .addAttribute(ASW("type",4), ASW("text/xsl",8))
// .addAttribute(ASW("href",4), errorStylesheet);
//}
//a_Add request header to result XML
if (!pContext->useModel().exists(ASW("REQUEST",7)))
pContext->useRequestHeader().emitXml(pContext->useModel().overwriteElement(ASW("REQUEST",7)));
pContext->useResponseHeader().emitXml(pContext->useModel().overwriteElement(ASW("RESPONSE",8)));
//a_Check if dumpContext is specified to override and emit XML
int dumpContextLevel = pContext->getDumpContextLevel();
pContext->dumpContext(dumpContextLevel);
if (dumpContextLevel > 0)
{
//a_Write contents of the output XML instead of output buffer
m_Services.useConfiguration().setMimeTypeFromExt(ASW("xml",3), *pContext);
pContext->useResponseHeader().setStatusCode(AHTTPResponseHeader::SC_200_Ok);
pContext->writeOutputBuffer(true);
}
else
{
//a_Set the current content type as text/html
pContext->useResponseHeader().set(AHTTPHeader::HT_ENT_Content_Type, ASW("text/html; charset=utf-8",24));
int statusCode = pContext->useResponseHeader().getStatusCode();
AAutoPtr<ATemplate> pTemplate(NULL, false); //a_Call to cache manager will set a template
pContext->clearOutputBuffer();
if (m_Services.useCacheManager().getStatusTemplate(statusCode, pTemplate))
{
//a_Template for this status code is found, so process and emit into output buffer
pTemplate->process(pContext->useLuaTemplateContext(), pContext->useOutputBuffer());
if (pContext->useEventVisitor().isLogging(AEventVisitor::EL_DEBUG))
{
ARope rope("Using error template for status ");
rope.append(AString::fromInt(statusCode));
pContext->useEventVisitor().startEvent(rope, AEventVisitor::EL_DEBUG);
}
}
else
{
if (pContext->useEventVisitor().isLogging(AEventVisitor::EL_WARN))
{
ARope rope("Did not find error template for status ");
rope.append(AString::fromInt(statusCode));
pContext->useEventVisitor().startEvent(rope, AEventVisitor::EL_WARN);
}
}
if (pContext->isOutputBufferEmpty())
{
AString strError(1024, 256);
strError.assign("Error ",6);
strError.append(AString::fromInt(pContext->useResponseHeader().getStatusCode()));
strError.append(": ", 2);
strError.append(pContext->useResponseHeader().getStatusCodeReasonPhrase(pContext->useResponseHeader().getStatusCode()));
//a_Put some generic stuff since there is no error template
pContext->useOutputBuffer().append("<html><head><title>",19);
pContext->useOutputBuffer().append(strError);
pContext->useOutputBuffer().append("</title></head>",15);
pContext->useOutputBuffer().append("<body>",6);
pContext->useOutputBuffer().append(strError);
pContext->useOutputBuffer().append("</body></html>",14);
}
try
{
pContext->writeOutputBuffer();
}
catch(ASocketException& ex)
{
pContext->useEventVisitor().addEvent(ex, AEventVisitor::EL_ERROR);
pContext->useConnectionFlags().setBit(AOSContext::CONFLAG_IS_SOCKET_ERROR);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
continue;
}
}
}
//a_Close connection
pContext->useSocket().close();
//a_Proceed
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
continue;
}
AThread::sleep(pThis->m_SleepDelay); //a_Empty queue, avoid thrashing
}
catch(AException& e)
{
pContext->useEventVisitor().addEvent(e, AEventVisitor::EL_ERROR);
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
catch(std::exception& e)
{
pContext->useEventVisitor().addEvent(ASWNL(e.what()), AEventVisitor::EL_ERROR);
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
}
catch(...)
{
m_Services.useLog().add(pContext->useEventVisitor(), ALog::EVENT_FAILURE);
pContext->useEventVisitor().addEvent(ASWNL("Unknown exception caught in AOSContextQueue_ErrorExecutor::_threadproc"), AEventVisitor::EL_ERROR);
m_Services.useContextManager().changeQueueState(AOSContextManager::STATE_TERMINATE, &pContext);
break;
}
}
thread.setRunning(false);
return 0;
}
