Module dk.cloudcreate.essentials.shared
Package dk.cloudcreate.essentials.shared

Class MessageFormatter

java.lang.Object
dk.cloudcreate.essentials.shared.MessageFormatter
public final class MessageFormatter extends Object
Slf4J compatible message formatter.

The MessageFormatter supports formatting a message using Slf4J style message anchors:
 msg("This {} a {} message {}", "is", "simple", "example");
will return "This is a simple message example"

The MessageFormatter also support named argument binding:
 bind("Hello {:firstName} {:lastName}.",
      arg("firstName", "Peter"),
      arg("lastName", "Hansen"))
will return the string "Hello Peter Hansen."

  • Constructor Details

    • MessageFormatter

      public MessageFormatter()

  • Method Details

    • msg

      public static String msg(String message, Object... messageAnchorPlaceHolderValues)
      Format a message using Slf4J like message anchors.
      Example: msg("This {} a {} message {}", "is", "simple", "example"); will result in this String:
      "This is a simple message example"
      Parameters:
      message - The message that can contain zero or more message anchors {} that will be replaced positionally by matching values in messageAnchorPlaceHolderValues
      messageAnchorPlaceHolderValues - the positional placeholder values that will be inserted into the message if it contains matching anchors
      Returns:
      the message with any anchors replaced with messageAnchorPlaceHolderValues

    • bind

      public static String bind(String message, Map<String,Object> bindings)
      Replaces placeholders of style "Hello {:firstName} {:lastName}." with bind of firstName to "Peter" and lastName to "Hansen" this will return the string "Hello Peter Hansen.": 
           bind("Hello {:firstName} {:lastName}.",
              Map.of("firstName", "Peter",
                     "lastName", "Hansen"
              )
         )
      Parameters:
      message - the message string
      bindings - the map where the key will become the MessageFormatter.NamedArgumentBinding.name and the value will become the MessageFormatter.NamedArgumentBinding.value
      Values are converted to String's using the toString()
      Returns:
      the message merged with the bindings

    • bind

      public static String bind(String message, MessageFormatter.NamedArgumentBinding... bindings)
      Replaces placeholders of style "Hello {:firstName} {:lastName}." with bind of firstName to "Peter" and lastName to "Hansen" this will return the string "Hello Peter Hansen.": 
           bind("Hello {:firstName} {:lastName}.",
          arg("firstName", "Peter"),
          arg("lastName", "Hansen"))
      Parameters:
      message - the message string
      bindings - the vararg list of MessageFormatter.NamedArgumentBinding's (prefer using the static method @MessageFormatter.NamedArgumentBinding.arg(String, Object)
      Values are converted to String's using the toString()
      Returns:
      the message merged with the bindings

    • bind

      public static String bind(String message, List<MessageFormatter.NamedArgumentBinding> bindings)
      Replaces placeholders of style "Hello {:firstName} {:lastName}." with bind of firstName to "Peter" and lastName to "Hansen" this will return the string "Hello Peter Hansen.": 
           bind("Hello {:firstName} {:lastName}.",
              List.of(
                  arg("firstName", "Peter"),
                  arg("lastName", "Hansen")
              )
         )
      Parameters:
      message - the message string
      bindings - list of MessageFormatter.NamedArgumentBinding's (use the static method @MessageFormatter.NamedArgumentBinding.arg(String, Object)
      Values are converted to String's using the toString()
      Returns:
      the message merged with the bindings