Package org.apache.maven.shared.utils.logging

Class MessageUtils

java.lang.Object
org.apache.maven.shared.utils.logging.MessageUtils
public class MessageUtils extends Object
Colored message utils, to manage colors consistently across plugins (only if Maven version is at least 3.5.0). For Maven version before 3.5.0, message built with this util will never add color.

Internally, Jansi is used to render ANSI colors on any platform.

Since:
3.1.0

  • Constructor Details

    • MessageUtils

      public MessageUtils()

  • Method Details

    • systemInstall

      public static void systemInstall()
      Install color support. This method is called by Maven core, and calling it is not necessary in plugins.

    • systemUninstall

      public static void systemUninstall()
      Undo a previous systemInstall(). If systemInstall() was called multiple times, systemUninstall() must be called call the same number of times before it is actually uninstalled.

    • setColorEnabled

      public static void setColorEnabled(boolean flag)
      Enables message color (if Jansi is available).
      Parameters:
      flag - to enable Jansi

    • isColorEnabled

      public static boolean isColorEnabled()
      Is message color enabled: requires Jansi available (through Maven) and the color has not been disabled.
      Returns:
      whether colored messages are enabled

    • buffer

      public static MessageBuilder buffer()
      Create a default message buffer.
      Returns:
      a new buffer

    • buffer

      public static MessageBuilder buffer(StringBuilder builder)
      Create a message buffer with defined String builder.
      Parameters:
      builder - initial content of the message buffer
      Returns:
      a new buffer

    • buffer

      public static MessageBuilder buffer(int size)
      Create a message buffer with an internal buffer of defined size.
      Parameters:
      size - size of the buffer
      Returns:
      a new buffer

    • level

      public static LoggerLevelRenderer level()
      Create a logger level renderer.
      Returns:
      a logger level renderer
      Since:
      3.2.0

    • stripAnsiCodes

      public static String stripAnsiCodes(String msg)
      Remove any ANSI code from a message (colors or other escape sequences).
      Parameters:
      msg - message eventually containing ANSI codes
      Returns:
      the message with ANSI codes removed

    • registerShutdownHook

      public static void registerShutdownHook()
      Register a shutdown hook with the JVM runtime, uninstalling Ansi support on JVM shutdown unless is has already been uninstalled at that time.

      Delegates to doSystemUninstall() for the actual uninstall procedure

      See Also:

    • getTerminalWidth

      public static int getTerminalWidth()
      Get the terminal width or -1 if the width cannot be determined.
      Returns:
      the terminal width