Conversion between JSON and XML fields

[louisaxel-ambroise]

The introduction of EPCIS 2.0 adds a new JSON format for EPCIS events, alongside with the existing XML format.

There is one point that needs clarification. This JSON is valid according to GS1:

{
	"isA": "TransformationEvent",
	[...]
	"ext1:time": "2013-06-08T14:58:56.591Z",
	"ext1:array": [
	  "12",
	  "22",
	  "2013-06-08T14:58:56.591Z",
	  "true",
	  "stringInArray",
	  {
		"ext1:object": {
		  "ext1:object": {
			"ext2:array": [
			  "14",
			  "23.0",
			  "stringInArrayInObjectInArray"
			],
			"ext2:object": {
			  "ext2:object": {
				"ext3:string": "stringInObjectInObjectInArray"
			  }
			},
			"ext2:int": "13",
			"ext2:string": "stringInObjectInArray"
		  }
		}
	  }
	]
  }

However, its XML representation is not totally clear to me. The naive implementation would be something like this:

<TransformationEvent>
	[...]
	<ext1:float>20</ext1:float>
	<ext1:time>2013-06-08T14:58:56.591Z</ext1:time>
	<ext1:array>
		<ext1:array>12</ext1:array>
		<ext1:array>22</ext1:array>
		<ext1:array>2013-06-08T14:58:56.591Z</ext1:array>
		<ext1:array>true</ext1:array>
		<ext1:array>stringInArray</ext1:array>
		<ext1:array>
			<ext1:object>
				<ext1:object>
					<ext2:array>
						<ext2:array>14</ext2:array>
						<ext2:array>23.0</ext2:array>
						<ext2:array>stringInArrayInObjectInArray</ext2:array>
					</ext2:array>
					<ext2:object>
						<ext2:object>
							<ext3:string>stringInObjectInObjectInArray</ext3:string>
						</ext2:object>
					</ext2:object>
					<ext2:int>13</ext2:int>
					<ext2:string>stringInObjectInArray</ext2:string>
				</ext1:object>
			</ext1:object>
		</ext1:array>
	</ext1:array>
	<ext1:boolean>true</ext1:boolean>
	<ext1:object>
		<ext2:array>
			<ext2:array>11</ext2:array>
			<ext2:array>21</ext2:array>
			<ext2:array>stringInArrayInObject</ext2:array>
		</ext2:array>
		<ext2:object>
			<ext2:object>
				<ext3:string>stringInObjectInObject</ext3:string>
			</ext2:object>
		</ext2:object>
		<ext2:string>stringInObject</ext2:string>
	</ext1:object>
	<ext1:default>stringAsDefaultValue</ext1:default>
	<ext1:int>10</ext1:int>
	<ext1:string>string</ext1:string>
</TransformationEvent>

It's working, it's a valid XML document but I'm not sure this is the cleanest option to represent this value.
It should be an edge case, as such extension fields do not really make sense, but it's allowed so FasT&T should support it.

If anyone has a better idea, please let me know!

[louisaxel-ambroise]

Nevermind, I just had to look at the example XML files...
The correct output is:

<TransformationEvent>
	[...]
	<ext1:time>2013-06-08T14:58:56.591Z</ext1:time>
	<ext1:array>12</ext1:array>
	<ext1:array>22</ext1:array>
	<ext1:array>2013-06-08T14:58:56.591Z</ext1:array>
	<ext1:array>true</ext1:array>
	<ext1:array>stringInArray</ext1:array>
	<ext1:array>
		<ext1:object>
			<ext1:object>
				<ext2:array>14</ext2:array>
				<ext2:array>23.0</ext2:array>
				<ext2:array>stringInArrayInObjectInArray</ext2:array>
				<ext2:object>
					<ext2:object>
						<ext3:string>stringInObjectInObjectInArray</ext3:string>
					</ext2:object>
				</ext2:object>
				<ext2:int>13</ext2:int>
				<ext2:string>stringInObjectInArray</ext2:string>
			</ext1:object>
		</ext1:object>
	</ext1:array>
</TransformationEvent>