On Thu, May 14, 2020 at 6:34 PM Omar Alkhateeb <[email protected]> wrote:
> Hi Tatu,
>
> Thank you very much for your response :
>
> We can neglect the Gson Parsing
>
> the issue after debugging it exactly after calling readValue as shown here
> :
>
> HashMap<String, Object> obj = mapper.readValue(responseBuffer.toString(),
> typeRef);
>
> for example, let's take this Key,Value from the original File :
>
> Conditions:
> ProvidedAdminEmail: !Not [!Equals [!Ref AdminEmail, '']]
> ProvidedTargetGroups: !Not [!Equals [!Ref GatewaysTargetGroups, '']]
> EnableCloudWatch: !Equals [!Ref CloudWatch, true]
> CreateELB: !Not [!Equals [!Ref ELBType, none]]
>
> After Debugging, i found that ObjectMapper using YamlParser change the
> text that starting with ! as :
>
> Conditions={ProvidedAdminEmail=[[AdminEmail, ]],
> ProvidedTargetGroups=[[GatewaysTargetGroups, ]],
> EnableCloudWatch=[CloudWatch, true], CreateELB=[[ELBType, none]]}
>
> And i stopped the debugger before continue with Gson parsing, so the issue
> 100% with the YamlParser used by Deserializer
>
> Yesterday I debugged the YamlParser and found it is simply skipping the
> String that start with ! (maybe i'm wrong, you are expert than me)
>
> i wrote here :
>
>
> https://stackoverflow.com/questions/61784803/jackson-yaml-parser-deleted-special-characters
>
>
> After Debugging, i found that the issue with : Object value =
> deserialize(p, ctxt); Inside Class : UntypedObjectDeserializer when
> deserialize try to find the value, i see that the Parser has current token
> : !Ref but the YAMLParser advanced to the next token and neglect it in a
> strange way I'm talking about this line Number 648 JsonToken t =
> p.nextToken(); Inside deserialize Function I need here some one expert with
> YamlParser to find where is the issue
>
> i believe you are one of the most active and intelligent contributor to
> this Project and i sure you will find where is exactly the issue
>
:)
Ok, I think the problem is with String value that is not quoted, meaning
that YAML parser (snakeYAML) will process possible notation.
And "!" happens to be special character, see for example:
https://stackoverflow.com/questions/9664113/what-does-a-single-exclamation-mark-do-in-yaml
which I think here gets removed (probably just adds "empty" tag, which
parser discards).
Solution here would be to quote such String values.
I hope this helps,
-+ Tatu +-
>
>
> On Fri, May 15, 2020 at 1:48 AM Tatu Saloranta <[email protected]> wrote:
>
>> On Wed, May 13, 2020 at 2:51 PM Omar Alkhateeb <[email protected]>
>> wrote:
>>
>>> I have issue while using ObjectMapper with YAMLFactory to Parse a YAML
>>> File
>>>
>>>
>>>
>>> 1. The YAML file I’m trying to parse :
>>> https://drive.google.com/open?id=1Q85OmjH-IAIkordikLTsC1oQVTg8ggc8
>>>
>>> 2. Parsing the File using readValue as shown here :
>>>
>>>
>>>
>>> ObjectMapper mapper = *new* ObjectMapper(*new*
>>> YAMLFactory().enable(Feature.*MINIMIZE_QUOTES*)//
>>>
>>> .disable(Feature.*WRITE_DOC_START_MARKER*)//
>>>
>>> .disable(YAMLGenerator.Feature.*SPLIT_LINES*));
>>>
>>> // mapper.getFactory().setCharacterEscapes(new YAMLCharacterEscapes());
>>>
>>> TypeReference<HashMap<String, Object>> typeRef = *new*
>>> TypeReference<HashMap<String,
>>> Object>>() {};
>>>
>>> HashMap<String, Object> obj = mapper.readValue(responseBuffer
>>> .toString(), typeRef);
>>>
>>>
>>>
>>> 3. Converting the Obj to json then to YAML again by :
>>>
>>>
>>>
>>> JsonElement jsonElem = *wrapJacksonObject*(obj);
>>>
>>> String cloudTemplateJsonString = *new*
>>> GsonBuilder().disableHtmlEscaping().setPrettyPrinting()//
>>>
>>> .create()//
>>>
>>> .toJson(jsonElem);
>>>
>>>
>>>
>>> JsonNode jsonNode = mapper.readTree(cloudTemplateJsonString);
>>>
>>> String yaml = *new* YAMLMapper().enable(Feature.
>>> *MINIMIZE_QUOTES*)//
>>>
>>> .disable(Feature.*WRITE_DOC_START_MARKER*)//
>>>
>>> .writeValueAsString(jsonNode);
>>>
>>>
>>>
>>> 4. After checking the last String, I see that these Special
>>> Characters are Changed/Deleted (they are Changed exactly after Point 2)
>>> :
>>>
>>>
>>>
>>> a. ‘ transferred to “ or Deleted
>>>
>>> b. ! : Regarding the exclamation mark : the whole string after it
>>> until first space is deleted totally :
>>>
>>>
>>>
>>> Diff Examples on what I talking about :
>>>
>>>
>>>
>>> 5. I try to use Escape Characters Customization By customizing
>>> Implementation for *CharacterEscapes* class but it didn’t help
>>>
>>>
>>>
>>> Do you have any suggestions ? Please help me I really need your help to
>>> success my project
>>>
>>>
>> I am sorry but that is a very complex sequence of things, for some reason
>> even including GSON for json parsing instead of Jackson.
>>
>> If some characters get changed unexpectedly you will probably need to
>> figure out the specific part of processing that does it.
>> Use of CharacterEscapes should not be necessary: text values should
>> retain their exact contents.
>>
>> -+ Tatu +-
>>
>>
>>
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>>
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