[BAEL-5631] Quarkus vs Spring boot improvements (#12520)

* Initial impl

* Update framework versions testing from jm to wrk

* Add hyperfoil

* Add hyperfoil read me

quarkus-modules/quarkus-vs-springboot/wrk/json.lua

@@ -0,0 +1,133 @@
+local json = {}
+
+local function kind_of(obj)
+  if type(obj) ~= 'table' then return type(obj) end
+  local i = 1
+  for _ in pairs(obj) do
+    if obj[i] ~= nil then i = i + 1 else return 'table' end
+  end
+  if i == 1 then return 'table' else return 'array' end
+end
+
+local function escape_str(s)
+  local in_char  = {'\\', '"', '/', '\b', '\f', '\n', '\r', '\t'}
+  local out_char = {'\\', '"', '/',  'b',  'f',  'n',  'r',  't'}
+  for i, c in ipairs(in_char) do
+    s = s:gsub(c, '\\' .. out_char[i])
+  end
+  return s
+end
+
+local function skip_delim(str, pos, delim, err_if_missing)
+  pos = pos + #str:match('^%s*', pos)
+  if str:sub(pos, pos) ~= delim then
+    if err_if_missing then
+      error('Expected ' .. delim .. ' near position ' .. pos)
+    end
+    return pos, false
+  end
+  return pos + 1, true
+end
+
+local function parse_str_val(str, pos, val)
+  val = val or ''
+  local early_end_error = 'End of input found while parsing string.'
+  if pos > #str then error(early_end_error) end
+  local c = str:sub(pos, pos)
+  if c == '"'  then return val, pos + 1 end
+  if c ~= '\\' then return parse_str_val(str, pos + 1, val .. c) end
+  local esc_map = {b = '\b', f = '\f', n = '\n', r = '\r', t = '\t'}
+  local nextc = str:sub(pos + 1, pos + 1)
+  if not nextc then error(early_end_error) end
+  return parse_str_val(str, pos + 2, val .. (esc_map[nextc] or nextc))
+end
+
+local function parse_num_val(str, pos)
+  local num_str = str:match('^-?%d+%.?%d*[eE]?[+-]?%d*', pos)
+  local val = tonumber(num_str)
+  if not val then error('Error parsing number at position ' .. pos .. '.') end
+  return val, pos + #num_str
+end
+
+function json.stringify(obj, as_key)
+  local s = {}
+  local kind = kind_of(obj)
+  if kind == 'array' then
+    if as_key then error('Can\'t encode array as key.') end
+    s[#s + 1] = '['
+    for i, val in ipairs(obj) do
+      if i > 1 then s[#s + 1] = ', ' end
+      s[#s + 1] = json.stringify(val)
+    end
+    s[#s + 1] = ']'
+  elseif kind == 'table' then
+    if as_key then error('Can\'t encode table as key.') end
+    s[#s + 1] = '{'
+    for k, v in pairs(obj) do
+      if #s > 1 then s[#s + 1] = ', ' end
+      s[#s + 1] = json.stringify(k, true)
+      s[#s + 1] = ':'
+      s[#s + 1] = json.stringify(v)
+    end
+    s[#s + 1] = '}'
+  elseif kind == 'string' then
+    return '"' .. escape_str(obj) .. '"'
+  elseif kind == 'number' then
+    if as_key then return '"' .. tostring(obj) .. '"' end
+    return tostring(obj)
+  elseif kind == 'boolean' then
+    return tostring(obj)
+  elseif kind == 'nil' then
+    return 'null'
+  else
+    error('Unjsonifiable type: ' .. kind .. '.')
+  end
+  return table.concat(s)
+end
+
+json.null = {}
+
+function json.parse(str, pos, end_delim)
+  pos = pos or 1
+  if pos > #str then error('Reached unexpected end of input.') end
+  local pos = pos + #str:match('^%s*', pos)
+  local first = str:sub(pos, pos)
+  if first == '{' then
+    local obj, key, delim_found = {}, true, true
+    pos = pos + 1
+    while true do
+      key, pos = json.parse(str, pos, '}')
+      if key == nil then return obj, pos end
+      if not delim_found then error('Comma missing between object items.') end
+      pos = skip_delim(str, pos, ':', true)
+      obj[key], pos = json.parse(str, pos)
+      pos, delim_found = skip_delim(str, pos, ',')
+    end
+  elseif first == '[' then
+    local arr, val, delim_found = {}, true, true
+    pos = pos + 1
+    while true do
+      val, pos = json.parse(str, pos, ']')
+      if val == nil then return arr, pos end
+      if not delim_found then error('Comma missing between array items.') end
+      arr[#arr + 1] = val
+      pos, delim_found = skip_delim(str, pos, ',')
+    end
+  elseif first == '"' then
+    return parse_str_val(str, pos + 1)
+  elseif first == '-' or first:match('%d') then
+    return parse_num_val(str, pos)
+  elseif first == end_delim then
+    return nil, pos + 1
+  else
+    local literals = {['true'] = true, ['false'] = false, ['null'] = json.null}
+    for lit_str, lit_val in pairs(literals) do
+      local lit_end = pos + #lit_str - 1
+      if str:sub(pos, lit_end) == lit_str then return lit_val, lit_end + 1 end
+    end
+    local pos_info_str = 'position ' .. pos .. ': ' .. str:sub(pos, pos + 10)
+    error('Invalid json syntax starting at ' .. pos_info_str)
+  end
+end
+
+return json