draw from haggle traces works

ebclibrary/src/main/jni/source/SSLClientTest.cpp

 #include <SSLClient.h>
 #include <iostream>
+#include <algorithm>
 #include <ctime>
-#include <chrono>
-#include <thread>
 #include <vector>
 #include <queue>
 #include <map>
@@ -16,8 +15,12 @@
 #define FANOUT 2
 #define PROPORTION_SATISFY 1
 #define USEST 1
+#define USENETWORK 0
+#define USETRACEDATA 1
+#define TRACE_FILE "haggle_traces.csv"
 
 int user_index = 0;
+int num_trace_users = 0;
 
 struct EncounterInfo {
 	int user1;
@@ -45,12 +48,6 @@ struct EncounterInfo {
 	}
 };
 
-struct UserBFSPair{
-	int user;
-	int level;
-	UserBFSPair(int user, int level) : user(user), level(level) {}
-};
-
 std::string generate_random_hex_str() {
 	char str[56 + 1];
 	for(int i = 0; i < 56; i++) {
@@ -58,10 +55,39 @@ std::string generate_random_hex_str() {
 	}
 	return std::string(str);
 }
+std::vector<EncounterInfo> generate_trace_encounters() {
+	std::vector<EncounterInfo> encs;
+	int user1, user2;	
+	long start, end;
+	double lat, longi;
+
+	std::ifstream infile(TRACE_FILE);
+	std::string line;
+	while (std::getline(infile, line)) {
+		std::istringstream iss(line);
+		if (!(iss >> user1 >> user2 >> start >> end)) { 
+			printf("ERROR\n"); 
+			continue;
+		} 
+		lat = (rand() % (2*CONSTRAINT_LOCATION_RANGE)) - CONSTRAINT_LOCATION_RANGE;
+		longi = (rand() % (2*CONSTRAINT_LOCATION_RANGE)) - CONSTRAINT_LOCATION_RANGE;
+		EncounterInfo enc = EncounterInfo(user1, user2, generate_random_hex_str(), 
+			start, end, lat, longi);
+		printf("%s\n", enc.to_string().c_str());
+		encs.push_back(enc);
+		num_trace_users = user2 > user1 ? std::max(user2, num_trace_users) 
+			: std::max(user1, num_trace_users); 
+	}
+	return encs;
+}
 
-// returns undirected edges representing encounters between users
-// creates chains of length CHAIN_LEN from SENDER, where each level has a fanout of FANOUT
-std::vector<EncounterInfo> generate_encounters() {
+// create chains of length CHAIN_LEN from SENDER, where each level has a fanout of FANOUT
+struct UserBFSPair{
+	int user;
+	int level;
+	UserBFSPair(int user, int level) : user(user), level(level) {}
+};
+std::vector<EncounterInfo> generate_synthesized_encounters() {
 	std::vector<EncounterInfo> encs;
 	std::queue<UserBFSPair> usersToProcess;
 	usersToProcess.push(UserBFSPair(user_index, 0));
@@ -132,7 +158,7 @@ std::vector<EncounterInfo> generate_encounters() {
 		printf("%s\n", enc.to_string().c_str());
 		encs.push_back(enc);
 	}
-return encs;
+	return encs;
 }
 
 void insert_auths(std::vector<EncounterInfo>& encs) 
@@ -143,8 +169,9 @@ void insert_auths(std::vector<EncounterInfo>& encs)
 	for (int i = 0; i <= user_index; i++) {
 		snprintf(buffer, sizeof(buffer), "%dAUTHDELIMITERSocialPlus TK=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiIzalNIRVUzNTA4ZVxuR29vZ2xlXG4xMTY4Njc1MTE0MDIxMzc1NzcxNTkiLCJpc3MiOiIzcWdtZzlWUmNaeFxuMmU1YTFjYzgtNWVhYi00ZGJkLThkNmQtNmE4NGVhYjIzMzc0IiwiZXhwIjoxNTQ1MDU1MzgzfQ.qOfRCnuO0wn6ntBMkCRgcKYzd0Ymzn5a6Tm56Wc5nlI\r\n", i);
   		myfile << buffer;
-        //printf("Return: %d\n", call_client_with_message(buffer));
-		//std::this_thread::sleep_for (std::chrono::milliseconds(250));
+#if USENETWORK
+        printf("Return: %d\n", call_client_with_message(buffer));
+#endif
 	}
   	myfile.close();
 }
@@ -186,27 +213,27 @@ void insert_encs(std::vector<EncounterInfo>& encs)
 		snprintf(buffer, sizeof(buffer), "%dENCDELIMITER%sENCDELIMITER%s\r\n", 
 			i, encountersStr.c_str(), locationsStr.c_str());
 		myfile << buffer;
-        //printf("Return: %d\n", call_client_with_message(buffer));
-		//std::this_thread::sleep_for (std::chrono::milliseconds(250));
+#if USENETWORK
+        printf("Return: %d\n", call_client_with_message(buffer));
+#endif
 	}
 	myfile.close();
 }
 
 void query_constraint() {
 	char buffer[1000];
-	// always call from user 0 (the sender)
+#if USETRACEDATA
 	// all query
-	/*snprintf(buffer, sizeof(buffer), 
+	snprintf(buffer, sizeof(buffer), 
 		"%dMESSAGEDELIMITER%dMESSAGEDELIMITER%dMESSAGEDELIMITER%dMESSAGEDELIMITER%s"\
 		"MESSAGEDELIMITER%dMESSAGEDELIMITER"\
 		"ALLMESSAGEDELIMITER%s\r\n",
-		0, CHAIN_LEN, FANOUT, INT_MAX, "False", 0, "hello world"); 
+		rand() % num_trace_users, CHAIN_LEN, FANOUT, INT_MAX, "False", 0, "hello world"); 
 	printf("Query: %s\n", buffer);
-	call_client_with_message(buffer);*/
-	
-	// non-proj traj query
-
+	call_client_with_message(buffer);
+#else
 #if USEST
+	// always call from user 0 (the sender)
 	snprintf(buffer, sizeof(buffer), 
 		"%dMESSAGEDELIMITER%dMESSAGEDELIMITER%dMESSAGEDELIMITER%dMESSAGEDELIMITER%s"\
 		"MESSAGEDELIMITER%dMESSAGEDELIMITER"\
@@ -225,10 +252,15 @@ void query_constraint() {
 	printf("Query: %s\n", buffer);
 	call_client_with_message(buffer);
 #endif
+#endif // USETRACEDATA
 }
 
 int main(int argc, char* argv[]){
-	std::vector<EncounterInfo> encs = generate_encounters();
+#if !USETRACEDATA
+	std::vector<EncounterInfo> encs = generate_synthesized_encounters();
+#else
+	std::vector<EncounterInfo> encs = generate_trace_encounters();
+#endif
 	insert_auths(encs);
 	insert_encs(encs);
 	query_constraint();