I am trying to fetch values from a JsonNode in order to carry out some validations.
However, I get null when i try to fetch the value using a predefined variable (String).
When I fetch the same value using hardcoded key, it gives me the correct value.
I tried naming a new variable String as the key, but it does not seem to be working as expected.
boolean validateFormData(JsonNode formData) {
System.out.println("1-" + formData.get("name"));
String nameVar = "name";
System.out.println("2-" + formData.get(nameVar));
return false;
}
1-"Mohammed"
2-null
Is being printed I am not sure why.
The reason I want to use a variable is because the keys are not fixed, they vary from Form to Form.
I am new to stackoverflow so kindly ignore the formatting errors.
I shall get better with time.
Any help is appreciated, thanks in advance.
Even if the question is repeated kindly point me to the right answer.
Related
I have a long string value. Here some values are missing as you see verifyoName. I wanted to fetch this key and add value for this key and finally update the payload with values. Could you please give
me some idea how can I do it.
String msg=<aleri:MESSAGE
xmlns:aleri="http://www.aleri.com/2005/JS/aleri"><HEADER>
<OPCODE>Capture</OPCODE></HEADER><DATA><Operators Branch="21"
Profile="ABC" VerifyDateTime="" VerifyoName="" /></DATA></aleri:MESSAGE>
Is there any way to convert the string below to a list?
This string is retrieved after scanning a QR code.
CashRequest{
orderid='0',
user_id='nvHt2U5RnqUwXB4ZK37Zn1DXPV82',
userName='username',
userEmail='whateveremailthisis#email.blabla',
fullName='full name',
phoneNumber=0,
totalCash='$304.00',
totalRV='$34.00',
foods=[
Order{
userID='nvHt2U5RnqUwXB4ZK37Zn1DXPV82',
ProductID='-LMDiT7klgoXU8bQEM-4',
ProductName='Coke',
Quantity='4',
Price='1',
RedemptionPrice='10',
RedemptionValue='1'},
Order{
userID='nvHt2U5RnqUwXB4ZK37Zn1DXPV82',
ProductID='1000',
ProductName='Kunau Ring Ring Pradu',
Quantity='3',
Price='100',
RedemptionPrice='10',
RedemptionValue='10'
}
]
}
The desired output is to store it in firebase realtime database as below :
Well you have a few options. Since it is newline between values, you could use simple newline reads and compare if it starts with "reserved word that you are looking for" then substring from there, but that can get messy and a lot of bloat code.
The simplest way would be to do the known replace first.
Make a method that replaces all bad json keys with quote surrounded json keys like:
val myJsonCorrected = yourStringAbove.replace("Order", "\"Order"\")
repeat for all known entities until you have made it into valid json. Single ticks are fine for the values, but the keys need quotes as well.
Then simply create an object that matches the json format.
class CashRequestModel{
#SerializableName("orderid")
var orderID: Int? = null
etc.....
#SerializableName("foods")
var myFoods: ArrayList<OrderModel>? = null
}
class OrderMode {
#SerializableName("userID")
var userID: String? = null
#SerializableName("ProductID")
var userID: String? = null
etc..
}
Then simply convert it to JSON
val cashRequest = getGson().fromJson(cleanedUpJson, classTypeForCashRequest);
and your done. Now just use the list. Of course it would be better if you could get valid JSON without having to clean it up first, but it looks like the keys are known and you can easily code string replaces to fix the bad json before casting it to object that matches the structure.
Hope that helps.
I have been trying to retrieve information from querying a specific Asset(Story/Defect) on V1 using the VersionOne.SDK.Java.APIClient. I have been able to retrieve information like ID.Number, Status.Name but not Requests.Custom_SFDCChangeReqID2 under a Story or a Defect.
I check the metadata for:
https://.../Story?xsl=api.xsl
https://.../meta.V1/Defect?xsl=api.xsl
https://.../meta.V1/Request?xsl=api.xsl
And the naming and information looks right.
Here is my code:
IAssetType type = metaModel.getAssetType("Story");
IAttributeDefinition requestCRIDAttribute = type.getAttributeDefinition("Requests.Custom_SFDCChangeReqID2");
IAttributeDefinition idNumberAttribute = type.getAttributeDefinition("ID.Number")
Query query = new Query(type);
query.getSelection().add(requestCRIDAttribute);
query.getSelection().add(idNumberAttribute);
Asset[] results = v1Api.retrieve(query).getAssets();
String RequestCRID= result.getAttribute(requestCRIDAttribute).getValue().toString();
String IdNumber= result.getAttribute(idNumberAttribute).getValue().toString();
At this point, I can get some values for ID.Number but I am not able to retrieving any information for the value Custom_SFDCChangeReqID2.
When I run the restful query to retrieve information using a browser from a server standpoint it works and it does retrieve the information I am looking for. I used this syntax:
https://.../rest-1.v1/Data/Story?sel=Number,ID,Story.Requests.Custom_SFDCChangeReqID2,Story.
Alex: Remember that Results is an array of Asset´s, so I guess you should be accessing the information using something like
String RequestCRID= results[0].getAttribute(requestCRIDAttribute).getValue().toString();
String IdNumber= results[0].getAttribute(idNumberAttribute).getValue().toString();
or Iterate through the array.
Also notice that you have defined:
Asset[] results and not result
Hi thanks for your answer! I completely forgot about representing the loop, I was too focus on the retriving information part, yes I was actually using a loop and yes I created a temporary variable to check what I was getting from the query in the form
Because I was getting the variables one by one so I was only using the first record. My code works after all. It was just that What I was querying didn't contain any information of my use, that's why I was not finding any. Anyway thanks for your comment and observations
I am using DynamoDBMapper for a class, let's say "User" (username being the primary key) which has a field on it which says "Status". It is a Hash+Range key table, and everytime a user's status changes (changes are extremely infrequent), we add a new entry to the table alongwith the timestamp (which is the range key). To fetch the current status, this is what I am doing:
DynamoDBQueryExpression expr =
new DynamoDBQueryExpression(new AttributeValue().withS(userName))
.withScanIndexForward(false).withLimit(1);
PaginatedQueryList<User> result =
this.getMapper().query(User.class, expr);
if(result == null || result.size() == 0) {
return null;
}
for(final User user : result) {
System.out.println(user.getStatus());
}
This for some reason, is printing all the statuses a user has had till now. I have set scanIndexForward to false so that it is in descending order and I put limit of 1. I am expecting this to return the latest single entry in the table for that username.
However, when I even look into the wire logs of the same, I see a huge amount of entries being returned, much more than 1. For now, I am using:
final String currentStatus = result.get(0).getStatus();
What I am trying to understand here is, what is whole point of the withLimit clause in this case, or am I doing something wrong?
In March 2013 on the AWS forums a user complained about the same problem.
A representative from Amazon sent him to use the queryPage function.
It seems as if the limit is not preserved for elements but rather a limit on chunk of elements retrieved in a single API call, and the queryPage might help.
You could also look into the pagination loading strategy configuration
Also, you can always open a Github issue for the team.
I've been struggling with queries with Google's datastore and wanted to get some help.
I have a form that saves a double to the datastore. Here is a snippet from the servlet:
String temp = req.getParameter("temp");
message.setProperty("temp", temp);
temp is a string but containes a number with decimal places.
In my JSP code I'm trying to run the query:
query.addFilter("temp",Query.FilterOperator.GREATER_THAN, -0.9);
But it only seems to work if the value (-0.9) is an integer (-1). Also, when I try to use a variable I get an invalid constant error:
query.addFilter("temp",Query.FilterOperator.GREATER_THAN, request.getParameter('mintemp'));
Any help would be appreciated!
Thanks!
Chance are you are setting your property as a String, you should store the property as a Float instead see the documentation for setProperty.
Convert your String to a Float before setting the Entity property:
message.setProperty("temp", Float.parseFloat(temp));