Refactored seqno and id classes out of provider.hpp

src/id.cpp

@@ -0,0 +1,54 @@
+//
+// Copyright (C) 2018 Codership Oy <info@codership.com>
+//
+
+#include "wsrep/id.hpp"
+#include <wsrep_api.h>
+
+#include <cctype>
+#include <sstream>
+#include <algorithm>
+
+wsrep::id::id(const std::string& str)
+    :  data_()
+{
+    wsrep_uuid_t wsrep_uuid;
+    if (wsrep_uuid_scan(str.c_str(), str.size(), &wsrep_uuid) ==
+        WSREP_UUID_STR_LEN)
+    {
+        std::memcpy(data_, wsrep_uuid.data, sizeof(data_));
+    }
+    else if (str.size() <= 16)
+    {
+        std::memcpy(data_, str.c_str(), str.size());
+    }
+    else
+    {
+        std::ostringstream os;
+        os << "String '" << str
+           << "' does not contain UUID or is longer thatn 16 bytes";
+        throw wsrep::runtime_error(os.str());
+    }
+}
+
+std::ostream& wsrep::operator<<(std::ostream& os, const wsrep::id& id)
+{
+    const char* ptr(static_cast<const char*>(id.data()));
+    ssize_t size(id.size());
+    if (std::count_if(ptr, ptr + size, ::isalnum) == size)
+    {
+        return (os << std::string(ptr, size));
+    }
+    else
+    {
+        char uuid_str[WSREP_UUID_STR_LEN + 1];
+        wsrep_uuid_t uuid;
+        std::memcpy(uuid.data, ptr, sizeof(uuid.data));
+        if (wsrep_uuid_print(&uuid, uuid_str, sizeof(uuid_str)) < 0)
+        {
+            throw wsrep::runtime_error("Could not print uuid");
+        }
+        uuid_str[WSREP_UUID_STR_LEN] = '\0';
+        return (os << uuid_str);
+    }
+}