Create JsonMapper.java #3
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Actionable comments posted: 6
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- JsonMapper.java (1 hunks)
Additional comments not posted (2)
JsonMapper.java (2)
15-17: Constructor looks good.The constructor correctly initializes the
objectMapperfield.
51-53: Method looks good.The
convertValuemethod correctly usesObjectMapperto convert objects.
| private static class JsonException extends RuntimeException { | ||
|
|
||
| public JsonException(Throwable cause) { | ||
| super(cause); | ||
| } | ||
| } |
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Consider adding more constructors to JsonException.
Add constructors that accept a message, a message and a cause, etc., for more flexibility.
public JsonException(String message) {
super(message);
}
public JsonException(String message, Throwable cause) {
super(message, cause);
}| public Map<String, Object> toMap(Object object) { | ||
| if (object == null) { | ||
| return Maps.newHashMap(); | ||
| } | ||
| return objectMapper.convertValue(object, new TypeReference<>() { | ||
| }); | ||
| } |
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Use Collections.emptyMap() for empty maps.
Replace Maps.newHashMap() with Collections.emptyMap() for better performance and readability.
- return Maps.newHashMap();
+ return Collections.emptyMap();Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public Map<String, Object> toMap(Object object) { | |
| if (object == null) { | |
| return Maps.newHashMap(); | |
| } | |
| return objectMapper.convertValue(object, new TypeReference<>() { | |
| }); | |
| } | |
| public Map<String, Object> toMap(Object object) { | |
| if (object == null) { | |
| return Collections.emptyMap(); | |
| } | |
| return objectMapper.convertValue(object, new TypeReference<>() { | |
| }); | |
| } |
| public String toJson(Object object) { | ||
| try { | ||
| return objectMapper.writeValueAsString(object); | ||
| } catch (JsonProcessingException e) { | ||
| throw new JsonException(e); | ||
| } | ||
| } |
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Enhance exception message in toJson.
Include the object in the exception message for better debugging.
- throw new JsonException(e);
+ throw new JsonException("Failed to convert object to JSON: " + object, e);Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public String toJson(Object object) { | |
| try { | |
| return objectMapper.writeValueAsString(object); | |
| } catch (JsonProcessingException e) { | |
| throw new JsonException(e); | |
| } | |
| } | |
| public String toJson(Object object) { | |
| try { | |
| return objectMapper.writeValueAsString(object); | |
| } catch (JsonProcessingException e) { | |
| throw new JsonException("Failed to convert object to JSON: " + object, e); | |
| } | |
| } |
| public <T> T fromJson(String jsonStr, Class<T> type) { | ||
| try { | ||
| return objectMapper.readValue(jsonStr, type); | ||
| } catch (JsonProcessingException e) { | ||
| throw new JsonException(e); | ||
| } | ||
| } |
There was a problem hiding this comment.
Enhance exception message in fromJson.
Include the JSON string in the exception message for better debugging.
- throw new JsonException(e);
+ throw new JsonException("Failed to deserialize JSON: " + jsonStr, e);Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public <T> T fromJson(String jsonStr, Class<T> type) { | |
| try { | |
| return objectMapper.readValue(jsonStr, type); | |
| } catch (JsonProcessingException e) { | |
| throw new JsonException(e); | |
| } | |
| } | |
| public <T> T fromJson(String jsonStr, Class<T> type) { | |
| try { | |
| return objectMapper.readValue(jsonStr, type); | |
| } catch (JsonProcessingException e) { | |
| throw new JsonException("Failed to deserialize JSON: " + jsonStr, e); | |
| } | |
| } |
| public static void main(String[] args) { | ||
| ResponseData responseData = new ResponseData(); | ||
| System.out.println(new JsonMapper(new ObjectMapper()).toMap(responseData)); | ||
| } |
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Add error handling and logging in main.
Include error handling and logging to make the demonstration more robust.
- System.out.println(new JsonMapper(new ObjectMapper()).toMap(responseData));
+ try {
+ System.out.println(new JsonMapper(new ObjectMapper()).toMap(responseData));
+ } catch (Exception e) {
+ e.printStackTrace();
+ }Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public static void main(String[] args) { | |
| ResponseData responseData = new ResponseData(); | |
| System.out.println(new JsonMapper(new ObjectMapper()).toMap(responseData)); | |
| } | |
| public static void main(String[] args) { | |
| ResponseData responseData = new ResponseData(); | |
| try { | |
| System.out.println(new JsonMapper(new ObjectMapper()).toMap(responseData)); | |
| } catch (Exception e) { | |
| e.printStackTrace(); | |
| } | |
| } |
| public <T> T fromJson(String jsonStr, TypeReference<T> type) { | ||
| try { | ||
| return objectMapper.readValue(jsonStr, type); | ||
| } catch (JsonProcessingException e) { | ||
| throw new JsonException(e); | ||
| } | ||
| } |
There was a problem hiding this comment.
Enhance exception message in fromJson.
Include the JSON string in the exception message for better debugging.
- throw new JsonException(e);
+ throw new JsonException("Failed to deserialize JSON: " + jsonStr, e);Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public <T> T fromJson(String jsonStr, TypeReference<T> type) { | |
| try { | |
| return objectMapper.readValue(jsonStr, type); | |
| } catch (JsonProcessingException e) { | |
| throw new JsonException(e); | |
| } | |
| } | |
| public <T> T fromJson(String jsonStr, TypeReference<T> type) { | |
| try { | |
| return objectMapper.readValue(jsonStr, type); | |
| } catch (JsonProcessingException e) { | |
| throw new JsonException("Failed to deserialize JSON: " + jsonStr, e); | |
| } | |
| } |
json
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