Class TextUtils

java.lang.Object
uno.anahata.asi.internal.TextUtils
public class TextUtils extends Object
A collection of general-purpose text and formatting utility methods.
Author:
anahata

  • Constructor Summary

    Constructors
    Constructor
    Description
    TextUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static String
    formatBase64(byte[] data)
    Encodes a byte array to a Base64 string and truncates it for display.
    static String
    formatByteArray(byte[] data)
    Formats a byte array into a concise string representation, showing the first and last three bytes in 0-255 format and truncating the middle.
    static String
    formatSize(long size)
    Formats a byte size into a human-readable string (e.g., "1.2 KB", "5.5 MB").
    static String
    formatValue(Object value)
    Formats a value for display in a summary, escaping newlines and truncating in the middle if necessary.
    static String
    getDeviceId()
    Gets a unique identifier for the current device (hostname).
    static String
    getJvmId()
    Gets a unique identifier for the current JVM instance, including the PID and hostname.
    static String
    getUserName()
    Gets the name of the current user.
    static boolean
    isNullOrEmpty(Object value)
    Checks if an object is null, a blank string, or an empty collection/map.
    static String
    resolveContentString(Object value)
    Intelligently resolves the pure Java representation for a value.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • TextUtils

      public TextUtils()

  • Method Details

    • formatSize

      public static String formatSize(long size)
      Formats a byte size into a human-readable string (e.g., "1.2 KB", "5.5 MB").
      Parameters:
      size - The size in bytes.
      Returns:
      The formatted string.

    • isNullOrEmpty

      public static boolean isNullOrEmpty(Object value)
      Checks if an object is null, a blank string, or an empty collection/map.
      Parameters:
      value - The object to check.
      Returns:
      true if the object is considered null or empty.

    • formatValue

      public static String formatValue(Object value)
      Formats a value for display in a summary, escaping newlines and truncating in the middle if necessary.
      Parameters:
      value - The object to format.
      Returns:
      A formatted, truncated string.

    • resolveContentString

      public static String resolveContentString(Object value)
      Intelligently resolves the pure Java representation for a value.

      Technical Purity: This method bypasses JSON serialization entirely. Collections are joined with newlines for clean multi-line display, while arrays leverage a professional bracketed comma-separated format using reflection.

      Parameters:
      value - The object to represent.
      Returns:
      The raw Java string representation.

    • formatByteArray

      public static String formatByteArray(byte[] data)
      Formats a byte array into a concise string representation, showing the first and last three bytes in 0-255 format and truncating the middle.
      Parameters:
      data - The byte array to format.
      Returns:
      A formatted string (e.g., "[12, 34, 56 ... 78, 90, 12]").

    • formatBase64

      public static String formatBase64(byte[] data)
      Encodes a byte array to a Base64 string and truncates it for display.
      Parameters:
      data - The byte array.
      Returns:
      A truncated Base64 string.

    • getDeviceId

      public static String getDeviceId()
      Gets a unique identifier for the current device (hostname).
      Returns:
      The hostname, or "unknown-device" if it cannot be determined.

    • getJvmId

      public static String getJvmId()
      Gets a unique identifier for the current JVM instance, including the PID and hostname.
      Returns:
      The JVM ID in the format "pid@hostname".

    • getUserName

      public static String getUserName()
      Gets the name of the current user.
      Returns:
      The user name.