From 8de2253c28d95907436b2e26f0805dd83e85a8ce Mon Sep 17 00:00:00 2001
From: Yves Fischer <yvesf-git@xapek.org>
Date: Fri, 19 Apr 2013 21:54:11 +0200
Subject: leveldb: /api/value mit server geniertem timestamp

---
 datastore-leveldb/src/web.cpp | 44 +++++++++++++++++++++++++------------------
 1 file changed, 26 insertions(+), 18 deletions(-)

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

diff --git a/datastore-leveldb/src/web.cpp b/datastore-leveldb/src/web.cpp
index efff6b9..125a4ad 100644
--- a/datastore-leveldb/src/web.cpp
+++ b/datastore-leveldb/src/web.cpp
@@ -1,17 +1,14 @@
 #include "web.h"
 #include "db.h"
 #include <algorithm>
-#include <vector>
+#include <chrono>
 #include <leveldb/comparator.h>
-#include <iomanip>
 
 static const leveldb::Comparator *cmp = leveldb::BytewiseComparator();
 
-static inline std::string make_key(uint64_t timestamp) {
-    std::stringstream key;
-    key << "ts-";
-    key << std::setfill('0') << std::setw(20) << timestamp;
-    return key.str();
+static inline uint64_t now() {
+    return std::chrono::duration_cast<std::chrono::milliseconds>(
+        std::chrono::high_resolution_clock::now().time_since_epoch()).count();
 }
 
 static inline bool parse_key(leveldb::Slice &&key, uint64_t *value) {
@@ -21,25 +18,36 @@ static inline bool parse_key(leveldb::Slice &&key, uint64_t *value) {
     return true;
 }
 
-
 const boost::regex web_handle_api_value_R(
-    "/api/value/([a-zA-Z0-9\\.]+)/([0-9]+)");
+    "/api/value/([a-zA-Z0-9\\.]+)");
 void web_handle_api_value(const boost::cmatch &match, struct mg_connection *conn) {
     std::string sensor(match[1].str());
-    uint64_t timestamp = std::stoul(match[2].str());
+    uint64_t timestamp = now();
     char buf[1024];
-    int count = mg_read(conn, buf, 1024);
-    std::string value(buf, count);
+    int bytesRead = mg_read(conn, buf, 1024);
+    std::string value(buf, bytesRead);
 
-    leveldb::DB *db = getDB(sensor);
-    if (db == nullptr) {
-        std::cout << "failed to get db for " << sensor << std::endl;
+    if (db_insert(sensor, timestamp, value)) {
+        mg_printf(conn, "HTTP/1.1 200 OK Value received\r\n\r\n");
+    } else {
         mg_printf(conn, "HTTP/1.1 500 Internal Error\r\n\r\n");
-        return;
     }
+}
 
-    db->Put(leveldb::WriteOptions(), make_key(timestamp), value);
-    mg_printf(conn, "HTTP/1.1 200 Value received\r\n\r\n");
+const boost::regex web_handle_api_value_timestamp_R(
+    "/api/value/([a-zA-Z0-9\\.]+)/([0-9]+)");
+void web_handle_api_value_timestamp(const boost::cmatch &match, struct mg_connection *conn) {
+    std::string sensor(match[1].str());
+    uint64_t timestamp = std::stoul(match[2].str());
+    char buf[1024];
+    int bytesRead = mg_read(conn, buf, 1024);
+    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");
+    } else {
+        mg_printf(conn, "HTTP/1.1 500 Internal Error\r\n\r\n");
+    }
 }
 
 static inline void print_json_tuple(struct mg_connection *conn,
-- 
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