Package dev.jcputney.elearning.parser.input.aicc

Class CourseDescriptionDeserializer

java.lang.Object
com.fasterxml.jackson.databind.JsonDeserializer<String>
dev.jcputney.elearning.parser.input.aicc.CourseDescriptionDeserializer
All Implemented Interfaces:
com.fasterxml.jackson.databind.deser.NullValueProvider
public class CourseDescriptionDeserializer extends com.fasterxml.jackson.databind.JsonDeserializer<String>
Custom deserializer for AICC course descriptions that provides backward compatibility with legacy JSON data.

In earlier versions (pre-867d2d1), course descriptions were stored as Map<String, String> to handle multi-line descriptions from AICC .crs files. Current versions use String directly since the parser extracts raw text via AiccParser.extractCourseDescription(dev.jcputney.elearning.parser.util.EncodingDetector.EncodingAwareInputStream, java.lang.String).

This deserializer handles both formats:

  • Current format (String): Returns the string value directly
  • Legacy format (Map/Object): Reconstructs multi-line text by joining map entries, treating empty values as plain text lines and non-empty values as "key: value" pairs
See Also:
  • AiccCourse.courseDescription

  • Nested Class Summary

    Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

    com.fasterxml.jackson.databind.JsonDeserializer.None

  • Constructor Summary

    Constructors
    Constructor
    Description
    CourseDescriptionDeserializer()
    Default constructor for the deserializer.

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    deserialize(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context)
    Deserializes a JSON value into a course description string.

    Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer

    deserialize, deserializeWithType, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, handledType, isCachable, logicalType, replaceDelegatee, supportsUpdate, unwrappingDeserializer

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • CourseDescriptionDeserializer

      public CourseDescriptionDeserializer()
      Default constructor for the deserializer.

  • Method Details

    • deserialize

      public String deserialize(com.fasterxml.jackson.core.JsonParser parser, com.fasterxml.jackson.databind.DeserializationContext context) throws IOException
      Deserializes a JSON value into a course description string.

      Supports two formats:

      • String: "Course_Description": "Simple text" → returns the string
      • Object/Map: "Course_Description": {"line1": "", "line2": "value"} → reconstructs as "line1\nline2: value"
      Specified by:
      deserialize in class com.fasterxml.jackson.databind.JsonDeserializer<String>
      Parameters:
      parser - the JsonParser to read the value from
      context - context for the deserialization process
      Returns:
      the course description as a String, or null if the field is null
      Throws:
      IOException - if the value cannot be parsed