I'm trying to define some docs in ES Painless Lab, to test some logic in Painless Lab, before running it on the actual index, but can't figure out how to do it, and the docs are not helping either. There is very little documentation on the actual syntax and it's not much help for someone with no Java background.
If I try to define a doc like this:
def docs = [{ "id": 1, "name": "Apple" }];
I get an error:
Unhandled Exception illegal_argument_exception
invalid sequence of tokens near ['{'].
Stack:
[
"def docs = [{ \"id\": 1, \"name\": \"Apple ...",
" ^---- HERE"
]
If I want to do it the Java way:
String message;
JSONObject json = new JSONObject();
json.put("test1", "value1");
message = json.toString();
I'm also getting an error:
Unhandled Exception illegal_argument_exception
invalid declaration: cannot resolve type [JSONObject]
Stack:
[
"... ring message;\nJSONObject json = new JSONObject();\n ...",
" ^---- HERE"
]
So what's the proper way to define an array of json objects to play with in Painless Lab?
After more experimenting, I found out that the docs can be passed in the parameters tab as:
{
"docs": [
{ "id": 1, "name": "Apple" },
{ "id": 2, "name": "Pear" },
{ "id": 3, "name": "Pineapple" }
]
}
and then access it from the code as
def doc = params.docs[1];
return doc["name"];
I'd be still interested how to define an object or array in the code itself.
Related
I need to query the partial fields for courseWork.list and courseWork.get so I am passing this value in fields as described in the documentation. But courseWork(individualStudentsOptions) API call returns a error:
{
"error": {
"code": 400,
"message": "field_mask: Unknown field mask values: individual_students_options",
"status": "INVALID_ARGUMENT",
"details": [
{
"#type": "type.googleapis.com/google.rpc.BadRequest",
"fieldViolations": [
{
"field": "field_mask",
"description": "Unknown field mask values: individual_students_options"
}
]
}
]
}
}
In other experiments, for example courseWork(id) everything is fine and the API call returns this:
{
"courseWork": [
{
"id": "93359557635"
},
{
"id": "93359557700"
},
...
]
}
So please help me how to fill in the field of individualStudentsOptions ?
How exactly are you calling this api?
This is how we do it here:
String studentUser = "student#gmail.com";
IndividualStudentsOptions individualStudentsOptions = new IndividualStudentsOptions();
ArrayList<String> studentIdList = new ArrayList<>();
studentIdList.add(studentUser);
individualStudentsOptions.setStudentIds(studentIdList);
CourseWork courseWork = new CourseWork()
.setCourseId(course.getId())
.setTitle("My course work")
.setDescription("desc")
.setMaxPoints(100.0)
.setDueDate(date)
.setDueTime(timeOfDay)
.setAssigneeMode("INDIVIDUAL_STUDENTS")
.setIndividualStudentsOptions(individualStudentsOptions)
.setWorkType("ASSIGNMENT")
.setState("PUBLISHED");
courseWork = service.courses().courseWork().create(course.getId(), courseWork).execute();
I have a requirement to throw different error in case of different scenarios like below, and there are many such fields not just 1.
e.g.
{
"id": 1,
"name": "nameWithSpecialChar$"
}
Here it should throw error for special character.
{
"id": 1,
"name": null
}
Here throw field null error.
{
"id": 1
}
Here throw field missing error.
Handling, 1st and 2nd scenario is easy, but for 3rd one, is there any way we can have a List of name of fields that were passed in input json at the time of serialization itself with Jackson?
One way, I am able to do it is via mapping request to JsonNode and then check if nodes are present for required fields and after that deserialize that JsonNode manually and then validate rest of the members as below.
public ResponseEntity myGetRequest(#RequestBody JsonNode requestJsonNode) {
if(!requestJsonNode.has("name")){
throw some error;
}
MyRequest request = ObjectMapper.convertValue(requestJsonNode, MyRequest .class);
validateIfFieldsAreInvalid(request);
But I do not like this approach, is there any other way of doing it?
You can define a JSON schema and validate your object against it. In your example, your schema may look like this:
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"id": {
"description": "The identifier",
"type": "integer"
},
"name": {
"description": "The item name",
"type": "string",
"pattern": "^[a-zA-Z]*$"
}
},
"required": [ "id", "name" ]
}
To validate your object, you could use the json-schema-validator library. This library is built on Jackson. Since you're using Spring Boot anyway, you already have Jackson imported.
The example code looks more or less like this:
String schema = "<define your schema here>";
String data = "<put your data here>";
JsonSchemaFactory factory = JsonSchemaFactory.byDefault();
ObjectMapper m = new ObjectMapper();
JsonSchema jsonSchema = factory.getJsonSchema(m.readTree(schema));
JsonNode json = m.readTree(data);
ProcessingReport report = jsonSchema.validate(json);
System.out.println(report);
The report includes detailed errors for different input cases. For example, with this input
{
"id": 1,
"name": "nameWithSpecialChar$"
}
this output is printed out
--- BEGIN MESSAGES ---
error: ECMA 262 regex "^[a-zA-Z]*$" does not match input string "nameWithSpecialChar$"
level: "error"
schema: {"loadingURI":"#","pointer":"/properties/name"}
instance: {"pointer":"/name"}
domain: "validation"
keyword: "pattern"
regex: "^[a-zA-Z]*$"
string: "nameWithSpecialChar$"
--- END MESSAGES ---
Or instead of just printing out the report, you can loop through all errors and have your specific logic
for (ProcessingMessage message : report) {
// Add your logic here
}
You could check the example code to gain more information about how to use the library.
So let's say I have a 200 response which body should be:
{
"data": [
{
"id": 1,
"title": "Activity 1"
},
{
"id": 1,
"title": "Activity 2"
}
]
}
I have managed to get this behavior of the response body by using this in API Blueprint.
+ Response 200 (application/json)
+ Attributes
+ data (array[Activity])
(Note that I can't add the data key to the data structure itself, because it's only present on the single response. If I need to nest an Activity inside another structure, it shouldn't have the data key.)
This doesn't seem right
The reason why I don't think it's the correct way of doing it, is beacuse of the JSON schema for this response which is:
{
"$schema": "http://json-schema.org/draft-04/schema#",
"type": "object",
"properties": {
"data": {
"type": "array"
}
}
}
Note how the actual activity is excluded.
How can I wrap my response in a data key properly, and have it reflected in both the body AND the schema?
You should use this line:
+ data(array[Activity], fixed-type)
The fixed-type keyword fixes the type of the items in the array.
lets say I have this json data file
{
"page": {
"title": "Example Page"
},
"employers": {
"name": "Jon"
},
"employees": [
{ "name": "Mike", "nicknames": ["Superman"] },
{ "name": "Peter", "nicknames": ["Peet", "Peetee", "Peterr"] }
]
}
this data.json file exist as a file outside of the script
I have these 3 lines to read and parse it with json ruby library
data = File.read("data.json")
obj = JSON.parse(data)
puts obj.values
in my terminal it comes out to be like this
{"title"=>"Example Page"}
{"name"=>"Jon"}
{"name"=>"Mike", "nicknames"=>["Superman"]}
{"name"=>"Peter", "nicknames"=>["Peet", "Peetee", "Peterr"]}
what happened to employers and employees? now I have the same key or name in this case. Its difficult for me to grab the values to use them.
Employers and employees are the keys for primary hash, and you requested values, that's why you get what you get. Try putting obj .
I am developing a web app using Codeigniter and MongoDB.
In the database I got a document that look like this:
{
"_id": {
"$id": "4f609932615a935c18r000000"
},
"basic": {
"name": "The project"
},
"members": [
{
"user_name": "john",
"role": "user",
"created_at": {
"sec": 1331730738,
"usec": 810000
}
},
{
"user_name": "markus",
"role": "user",
"created_at": {
"sec": 1331730738,
"usec": 810000
}
}
]
}
I need to search this document using both user_name and role. Right now when I am using the below code I get both. I only want to get array items matching both user_name and role.
$where = array (
'_id' => new MongoId ($account_id),
'members.user_id' => new MongoId ($user_id),
'members.role' => $role
);
$this -> cimongo -> where ($where) -> count_all_results ('accounts');
This is an old question, but as of MongoDB 2.2 or so you can use the $ positional operator in a projection so that only the matched array element is included in the result.
So you can do something like this:
$this->cimongo->where($where)->select(array('members.$'))->get('accounts');
This is a repeat of this question:
Get particular element from mongoDB array
Also you might want to use $elemMatch
http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-ValueinanArray
Here is the rub -- you aren't going to be able to get the array items that match because mongo is going to return the entire document if those elements match. You will have to parse out the code client side. Mongo doesn't have a way to answer, "return only the array that matches."