Class MaterialEnhancementService

java.lang.Object
com.university.bookstore.decorator.MaterialEnhancementService
public class MaterialEnhancementService extends Object
Service for managing material enhancements using the Decorator pattern. Provides methods to apply various decorators to materials and create enhancement packages.

This service demonstrates the Decorator pattern in action by providing a high-level interface for dynamically adding features to materials.

Since:
2024-09-15
Version:
3.0
Author:
Navid Mohaghegh

  • Constructor Details

    • MaterialEnhancementService

      public MaterialEnhancementService()

  • Method Details

    • addGiftWrapping

      public Material addGiftWrapping(Material material, String style)
      Adds gift wrapping to a material.
      Parameters:
      material - the material to enhance
      style - the wrapping style
      Returns:
      the enhanced material with gift wrapping
      Throws:
      IllegalArgumentException - if material or style is null

    • addExpeditedDelivery

      public Material addExpeditedDelivery(Material material, int deliveryDays)
      Adds expedited delivery to a material.
      Parameters:
      material - the material to enhance
      deliveryDays - the number of days for delivery
      Returns:
      the enhanced material with expedited delivery
      Throws:
      IllegalArgumentException - if material is null or deliveryDays is invalid

    • addDigitalAnnotations

      public Material addDigitalAnnotations(Material material)
      Adds digital annotations to a material.
      Parameters:
      material - the material to enhance
      Returns:
      the enhanced material with digital annotations
      Throws:
      IllegalArgumentException - if material is null

    • createPremiumPackage

      public Material createPremiumPackage(Material material, String giftStyle, int deliveryDays)
      Creates a premium package with multiple enhancements.
      Parameters:
      material - the material to enhance
      giftStyle - the gift wrapping style
      deliveryDays - the number of days for delivery
      Returns:
      the enhanced material with premium package
      Throws:
      IllegalArgumentException - if material is null or parameters are invalid

    • createGiftPackage

      public Material createGiftPackage(Material material, String giftStyle, int deliveryDays)
      Creates a gift package with gift wrapping and expedited delivery.
      Parameters:
      material - the material to enhance
      giftStyle - the gift wrapping style
      deliveryDays - the number of days for delivery
      Returns:
      the enhanced material with gift package

    • createDigitalPackage

      public Material createDigitalPackage(Material material)
      Creates a digital package with digital annotations (for e-books only).
      Parameters:
      material - the material to enhance
      Returns:
      the enhanced material with digital package, or original if not an e-book

    • calculateEnhancementCost

      public double calculateEnhancementCost(Material original, Material enhanced)
      Calculates the total enhancement cost for a material.
      Parameters:
      original - the original material
      enhanced - the enhanced material
      Returns:
      the total enhancement cost

    • getEnhancementSummary

      public String getEnhancementSummary(Material material)
      Gets a summary of enhancements applied to a material.
      Parameters:
      material - the material to analyze
      Returns:
      enhancement summary

    • getBasePrice

      public double getBasePrice(Material material)
      Gets the base price of a material (without decorators).
      Parameters:
      material - the material to analyze
      Returns:
      the base price

    • hasEnhancements

      public boolean hasEnhancements(Material material)
      Checks if a material has any enhancements applied.
      Parameters:
      material - the material to check
      Returns:
      true if enhancements are applied

    • getEnhancementCount

      public int getEnhancementCount(Material material)
      Gets the number of decorators applied to a material.
      Parameters:
      material - the material to analyze
      Returns:
      the decorator count

    • getBaseMaterial

      public Material getBaseMaterial(Material material)
      Gets the base material (unwraps all decorators).
      Parameters:
      material - the material to unwrap
      Returns:
      the base material

    • hasEnhancement

      public boolean hasEnhancement(Material material, Class<? extends MaterialDecorator> enhancementType)
      Checks if a material has a specific type of enhancement.
      Parameters:
      material - the material to check
      enhancementType - the type of enhancement to look for
      Returns:
      true if the enhancement is applied

    • toString

      public String toString()
      Overrides:
      toString in class Object