From b8677cb17b8c4fdf2af1fcd0ead311b9bf2cfead Mon Sep 17 00:00:00 2001
From: Yves Fischer <yvesf-git@xapek.org>
Date: Sat, 27 Apr 2013 20:20:44 +0200
Subject: datastore: name refactorings

---
 datastore-leveldb/src/web.cpp | 44 ++++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 21 deletions(-)

(limited to 'datastore-leveldb/src/web.cpp')

diff --git a/datastore-leveldb/src/web.cpp b/datastore-leveldb/src/web.cpp
index d938a66..cbadc57 100644
--- a/datastore-leveldb/src/web.cpp
+++ b/datastore-leveldb/src/web.cpp
@@ -11,13 +11,23 @@ static inline uint64_t now() {
         std::chrono::high_resolution_clock::now().time_since_epoch()).count();
 }
 
+// uint64_t is long
 inline void strToL(unsigned long int *l, std::string s) {
 	*l = std::stoul(s);
 }
+// uint64_t is long long
 inline void strToL(unsigned long long int *l, std::string s) {
 	*l = std::stoull(s);
 }
 
+static inline void reply_header(struct mg_connection *conn, const bool ok, const char *msg, const char *extra = "") {
+    mg_printf(conn,
+            "HTTP/1.1 %s %s\r\n"
+            "%s",
+            (ok) ? "200" : "500",
+            msg,
+            extra);
+}
 
 static inline bool parse_key(leveldb::Slice &&key, uint64_t *value) {
     if (key.size() != 20+3) 
@@ -36,9 +46,9 @@ void web_handle_api_value(const boost::cmatch &match, struct mg_connection *conn
     std::string value(buf, bytesRead);
 
     if (db_insert(sensor, timestamp, value)) {
-        mg_printf(conn, "HTTP/1.1 200 OK Value received\r\n\r\n");
+        reply_header(conn, true, "OK Value received", "\r\n");
     } else {
-        mg_printf(conn, "HTTP/1.1 500 Internal Error\r\n\r\n");
+        reply_header(conn, false, "Internal Error", "\r\n");
     }
 }
 
@@ -52,9 +62,9 @@ void web_handle_api_value_timestamp(const boost::cmatch &match, struct mg_connec
     std::string value(buf, bytesRead);
 
     if (db_insert(sensor, timestamp, value)) {
-        mg_printf(conn, "HTTP/1.1 200 OK Value received\r\n\r\n");
+        reply_header(conn, true, "OK Value received", "\r\n");
     } else {
-        mg_printf(conn, "HTTP/1.1 500 Internal Error\r\n\r\n");
+        reply_header(conn, false, "Internal Error", "\r\n");
     }
 }
 
@@ -90,20 +100,16 @@ void web_handle_api_range(const boost::cmatch &match, struct mg_connection *conn
     std::string sensor(match[1].str());
     uint64_t start; strToL(&start, match[2].str());
     uint64_t end; strToL(&end, match[3].str());
-    std::string key_start(std::move(make_key(start)));
-    std::string key_end(std::move(make_key(end)));
+    std::string key_start(std::move(db_make_key(start)));
+    std::string key_end(std::move(db_make_key(end)));
 
-    leveldb::DB *db = getDB(sensor);
+    leveldb::DB *db = db_get(sensor);
     if (db == nullptr) {
-        mg_printf(conn, "HTTP/1.1 500 Internal Error\r\n"
-                        "\r\n");
+        reply_header(conn, false, "Internal Error", "\r\n");
         return;
     }
 
-    mg_printf(conn,
-            "HTTP/1.1 200 OK\r\n"
-            "Content-Type: application/json\r\n"
-            "\r\n");
+    reply_header(conn, true, "OK", "Content-Type: application/json\r\n\r\n");
 
     std::ostringstream out;
     out << "{\"sensor\":\"" << sensor << "\", "
@@ -134,17 +140,13 @@ void web_handle_api_range_size(const boost::cmatch &match, struct mg_connection
     uint64_t end; strToL(&end, match[3].str());
     uint64_t size; strToL(&size, match[4].str());
 
-    leveldb::DB *db = getDB(sensor);
+    leveldb::DB *db = db_get(sensor);
     if (db == nullptr) {
-        mg_printf(conn, "HTTP/1.1 500 Internal Error\r\n"
-                        "\r\n");
+        reply_header(conn, false, "Internal Error", "\r\n");
         return;
     }
 
-    mg_printf(conn,
-            "HTTP/1.1 200 OK\r\n"
-            "Content-Type: application/json\r\n"
-            "\r\n");
+    reply_header(conn, true, "OK", "Content-Type: application/json\r\n\r\n");
 
     uint64_t step = std::max((uint64_t)1, (end-start) / size);
 
@@ -161,7 +163,7 @@ void web_handle_api_range_size(const boost::cmatch &match, struct mg_connection
     std::ostringstream outbuf;
     leveldb::Iterator* it = db->NewIterator(leveldb::ReadOptions());
     for (uint64_t key = start; key < end; key += step) {
-        it->Seek(make_key(key));
+        it->Seek(db_make_key(key));
         if (!it->Valid()) continue;
 
         if (first) first = false;
-- 
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