Package allurium

Class PropertyLoader

java.lang.Object
allurium.PropertyLoader
public class PropertyLoader extends Object
A utility class for managing and retrieving properties.

This class provides methods to access property values from multiple sources:

  • System properties (retrieved using JVM's system properties).
  • Custom profile properties specified via the "profile" system property.
  • Default properties loaded from the `/application.properties` file.

It supports retrieving properties as various data types (e.g., String, Integer, Boolean) and provides default values if a property is not found.

Key Features:

  • Retrieve property values with default fallbacks.
  • Load properties from multiple sources.
  • Parse properties as specific types (String, Integer, Boolean).

Usage:


 String value = PropertyLoader.loadProperty("propertyName", "defaultValue");

  • Constructor Details

    • PropertyLoader

      public PropertyLoader()

  • Method Details

    • loadSystemPropertyOrDefault

      public static String loadSystemPropertyOrDefault(String propertyName, String defaultValue)
      Returns the value of a system property by its name. If the property is not found, returns the specified default value.
      Parameters:
      propertyName - the name of the property
      defaultValue - the default value to return if the property is not found
      Returns:
      the value of the property by its name, or the default value if not found

    • loadSystemPropertyOrDefault

      public static Integer loadSystemPropertyOrDefault(String propertyName, Integer defaultValue)
      Returns the Integer value of a system property by its name. If the property is not found, returns the specified default value.
      Parameters:
      propertyName - the name of the property
      defaultValue - the default Integer value to return if the property is not found
      Returns:
      the Integer value of the property by its name, or the default value if not found

    • loadSystemPropertyOrDefault

      public static Boolean loadSystemPropertyOrDefault(String propertyName, Boolean defaultValue)
      Returns the Boolean value of a system property by its name. If the property is not found, returns the specified default value.
      Parameters:
      propertyName - the name of the property
      defaultValue - the default Boolean value to return if the property is not found
      Returns:
      the Boolean value of the property by its name, or the default value if not found

    • loadProperty

      public static String loadProperty(String propertyName)
      Retrieves a property value by its name from the properties file. If the value is not found, an exception is thrown.
      Parameters:
      propertyName - the name of the property
      Returns:
      the value of the property
      Throws:
      IllegalArgumentException - if the property is not found in the application.properties file

    • getPropertyOrValue

      public static String getPropertyOrValue(String propertyNameOrValue)
      Retrieves a property value by its name from the properties file. If the value is not found, the method returns the provided name as the default value.
      Parameters:
      propertyNameOrValue - the name of the property or the default value
      Returns:
      the value of the property if found, or the input name/value if not

    • loadProperty

      public static String loadProperty(String propertyName, String defaultValue)
      Retrieves a property value by its name from the properties file. If the value is not found, returns the specified default value.
      Parameters:
      propertyName - the name of the property
      defaultValue - the default value to return if the property is not found
      Returns:
      the value of the property or the default value

    • loadPropertyInt

      public static Integer loadPropertyInt(String propertyName, Integer defaultValue)
      Retrieves an Integer property value by its name from the properties file. If the value is not found, returns the specified default value.
      Parameters:
      propertyName - the name of the property
      defaultValue - the default Integer value to return if the property is not found
      Returns:
      the Integer value of the property or the default value

    • tryLoadProperty

      public static String tryLoadProperty(String propertyName)
      Helper method to retrieve a property value by its name. The method first checks system properties, then the profile-specific properties file (if the "profile" system property is specified), and finally falls back to the /application.properties file.
      Parameters:
      propertyName - the name of the property
      Returns:
      the value of the property, or null if not found