JuniorHighClient/SmartEvaluationLogic/RescanFromServerFeeder.cpp

#include "StdAfx.h"
#include "RescanFromServerFeeder.h"
#include "..\EvaluationUtil\HttpClient.h"
#include "ServerConfig.h"


CRescanFromServerFeeder::CRescanFromServerFeeder(void)
{
	m_img =NULL;
	InitializeCriticalSection(&m_img_lock);
}


CRescanFromServerFeeder::~CRescanFromServerFeeder(void)
{
	DeleteCriticalSection(&m_img_lock);
}

ServiceState CRescanFromServerFeeder::OnStarting( void )
{
	m_img = NULL;
	m_count =0;


	CHttpClient httpClient;
	string response;
	CString url_str;
	url_str.Format(_T("%s/%s"),CServerConfig::server_address_type==SAT_LOCAL_IN?CServerConfig::server_url_local_in:CServerConfig::server_address_type==SAT_LOCAL_OUT?CServerConfig::server_url_local_out:CServerConfig::server_url,_T("scan/findPaperImages"));
	CString postData;
	if(m_mode==MODE_EXAMINNE)postData.Format(_T("examId=%ld&examCourseId=%ld&batch=%s&examineeId=%s"),examId,examCourseId,m_batch,m_examineeId);
	else postData.Format(_T("examId=%ld&examCourseId=%ld&batch=%s"),examId,examCourseId,m_batch);
	httpClient.HttpPost(url_str,postData,response);
	Json::Features features;
	Json::Reader re(features);
	Json::Value root;
	re.parse(response,root);
	if(!(root["success"].isInt()&&root["success"].asInt())){
		return stoping;
	}
	Json::Value rows =root["object"];
	if(!(rows.isArray()&&rows.size()>0)){
		return stoping;
	}
	m_imginfos =rows;
	sidd.setImageInfo(&m_imginfos);
	sidd.setImageDownloadDir(m_imgDownloadDir);
	sidd.Start();
	return ServiceState::running;
}

ServiceState CRescanFromServerFeeder::OnRunning( void )
{
	ServiceState nextState = IService::OnRunning();
	if(nextState != running) return nextState;
	if(m_img==NULL){
		CString img_path;int img_index;
		bool success =sidd.GetNext(img_path,img_index);
		if(success){
			char img_path1[512];
			int len = WideCharToMultiByte(CP_ACP,0,img_path,-1,NULL,0,NULL,NULL);
			len=WideCharToMultiByte(CP_ACP,0,img_path,-1,img_path1,len,NULL,NULL);
			img_path1[len]=0;
			m_img =cvLoadImage(img_path1,1);
			m_param.type = identyfi_type_normal;
			m_param.srcimg_type = SRC_IMG_HANDLE_TYPE_COPY;
			m_param.img_path =img_path1;
			m_count++;
			return running;
		}else {
			return stoping;
		}
	}else{
		Sleep(10);
		return running;
	}
}

ServiceState CRescanFromServerFeeder::OnStoping( void )
{
	m_imginfos=Json::Value();
	return stoped;
}

bool CRescanFromServerFeeder::GetNext( BOOL wait,IplImage* & img, feeder_param& param )
{
	do 
	{
		BOOL isStoped = m_serviceState == stoped;
		if(m_img!=NULL){
			EnterCriticalSection(&m_img_lock);
			if(m_img!=NULL){
				img = m_img;
				param=m_param;
				m_img=NULL;
				LeaveCriticalSection(&m_img_lock);
				return true;
			}
			LeaveCriticalSection(&m_img_lock);
		}
		if(isStoped)return false;
		if(wait)Sleep(10);
	} while (wait);
	return false;
}