Class GsonJsonHandler
- java.lang.Object
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- com.caplin.datasource.messaging.json.GsonJsonHandler
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- All Implemented Interfaces:
JsonHandler<com.google.gson.JsonElement>
public class GsonJsonHandler extends java.lang.Object implements JsonHandler<com.google.gson.JsonElement>
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Constructor Summary
Constructors Constructor Description GsonJsonHandler()
GsonJsonHandler(java.util.logging.Logger logger)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description com.google.gson.JsonElement
diff(com.google.gson.JsonElement source, com.google.gson.JsonElement target)
Creates a JSON patch of the difference between two JSON tree representationsjava.lang.String
format(com.google.gson.JsonElement jsonElement)
Formats a JSON tree representation of an object to a JSON String.com.google.gson.JsonElement
parse(java.lang.String jsonText)
Parses a JSON text into a JSON tree representation used by the underlying JSON library.com.google.gson.JsonElement
patch(com.google.gson.JsonElement source, com.google.gson.JsonElement diff)
Updates a JSON tree representation with a JSON patchcom.google.gson.JsonElement
toJsonTree(java.lang.Object userObject)
Serializes a plain Java object (POJO) to a JSON tree representation used by the underlying JSON library.java.lang.Object
toObject(com.google.gson.JsonElement jsonElement, java.lang.Class userType)
Deserializes a JSON tree representation to a plain Java object
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Method Detail
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toJsonTree
public com.google.gson.JsonElement toJsonTree(java.lang.Object userObject)
Description copied from interface:JsonHandler
Serializes a plain Java object (POJO) to a JSON tree representation used by the underlying JSON library.- Specified by:
toJsonTree
in interfaceJsonHandler<com.google.gson.JsonElement>
- Parameters:
userObject
- a plain Java object- Returns:
- a JSON tree representation of the object
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toObject
public java.lang.Object toObject(com.google.gson.JsonElement jsonElement, java.lang.Class userType) throws java.lang.Exception
Description copied from interface:JsonHandler
Deserializes a JSON tree representation to a plain Java object- Specified by:
toObject
in interfaceJsonHandler<com.google.gson.JsonElement>
- Parameters:
jsonElement
- a JSON tree representation of the objectuserType
- the type of the object to deserialize into- Returns:
- a new object of type userType
- Throws:
java.lang.Exception
- if deserialization fails
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parse
public com.google.gson.JsonElement parse(java.lang.String jsonText) throws java.lang.Exception
Description copied from interface:JsonHandler
Parses a JSON text into a JSON tree representation used by the underlying JSON library.- Specified by:
parse
in interfaceJsonHandler<com.google.gson.JsonElement>
- Parameters:
jsonText
- the JSON text to parse- Returns:
- a JSON tree representation of the JSON text
- Throws:
java.lang.Exception
- if the parsing fails
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format
public java.lang.String format(com.google.gson.JsonElement jsonElement) throws java.lang.Exception
Description copied from interface:JsonHandler
Formats a JSON tree representation of an object to a JSON String.- Specified by:
format
in interfaceJsonHandler<com.google.gson.JsonElement>
- Parameters:
jsonElement
- a JSON tree representation of an object- Returns:
- the JSON String
- Throws:
java.lang.Exception
- if formatting fails
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diff
public com.google.gson.JsonElement diff(com.google.gson.JsonElement source, com.google.gson.JsonElement target)
Description copied from interface:JsonHandler
Creates a JSON patch of the difference between two JSON tree representations- Specified by:
diff
in interfaceJsonHandler<com.google.gson.JsonElement>
- Parameters:
source
- a JSON tree representation of the source objecttarget
- a JSON tree representation of the target object- Returns:
- a JSON tree representation of the JSON patch needed to patch source to create target.
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patch
public com.google.gson.JsonElement patch(com.google.gson.JsonElement source, com.google.gson.JsonElement diff) throws java.lang.Exception
Description copied from interface:JsonHandler
Updates a JSON tree representation with a JSON patch- Specified by:
patch
in interfaceJsonHandler<com.google.gson.JsonElement>
- Parameters:
source
- a JSON tree representation of the source objectdiff
- a JSON tree representation of the JSON patch- Returns:
- the updated, patched object
- Throws:
java.lang.Exception
- if the patch fails
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