I am working on writing a groovy script now and I am absolute new in groovy lang.
I have Json Object, like that:
{
"firstVar": {
"active": "false",
"title": "First Var"
},
"secondVar": {
"active": "false",
"title": "Second Var"
}
}
I need to iterate over this Json object. Count of items in this object may be various, like "sixthVar". I know solution in Java, and need something similar in groovy:
JSONObject jsonObject = new JSONObject(contents.trim());
Iterator<String> keys = jsonObject.keys();
while(keys.hasNext()) {
String key = keys.next();
if (jsonObject.get(key) instanceof JSONObject) {
// do something with jsonObject here
}
}
Or maybe there are some way to convert Json object to Json array?
I found the solution by trial and error. There is way of iteration like in Json Array:
jsonObject.each {
// do something with it.key and it.value pair
}
Related
I'm trying to post data via API to InsightVM. I keep getting error 400 which means wrong format. I break it down, the problem is in hostnames part.
JSONObject json = new JSONObject();
JSONArray array = new JSONArray();
if (host_info.getDataType() == dataType.Web_Vulnerability && methodType == MethodType.Add_host_To_Site)
{
JSONObject json2 = new JSONObject();
json2.put("name",host_info.getHost_fqdn());
json2.put("source", "Splunk");
array.add(json2);
DateTimeFormatter dtf = DateTimeFormatter.ISO_OFFSET_DATE_TIME;
json.put("date",OffsetDateTime.now().format(dtf) );
json.put("ip",host_info.getHost_ip());
json.put("os",host_info.getOperating_system());
json.put("hostNames",array); // problem is here
}
is the code above provide the same format as below:
{
"date": "2019-05-20",
"ip": "00.00.00.00",
"os":"Linux",
"hostNames":
[
{
"name": "corporate-workstation-1102DC.acme.com",
"source": "Splunk"
}
]
}
JSONArray implements Collection.
While JSONObject has an overloaded put() method,
which takes a Collection and wraps it in a JSONArray which might be causing the problem.
Can you try the following -
jsonObject.put("hostNames",(Object)array);
JsonObjectBuilder builder = factory.createObjectBuilder().add("input", input);
JsonObject jsonData = builder.build();
String jsonDataString = jsonData.toString();
try {
OutputStream jsonStream = new FileOutputStream(jsonPath);
OutputStreamWriter jsonStreamWriter = new OutputStreamWriter(jsonStream);
Gson gson = new GsonBuilder().setPrettyPrinting().create();
String prettyOutput = gson.toJson(jsonData);
System.out.println(prettyOutput);
jsonStreamWriter.write(prettyOutput);
}
catch(Exception e) {}
The output I get is weird:
It adds '"value":' before every string value of a key.
My JSON data is something like this:
{
"input": {
"record0": {
"Active": "",
"Level": "",
"Name": "Pre-Session",
"Description": "",
"Record": "",
"Field": "",
"Std. Rule": "",
"Ext. Rule": "//Updated By: Sukanya Dasgupta On: 25-Jan-2016"
}
}
}
Not an expect but I think the problem is that public String toJson(Object src) loses type information :
This method should be used when the specified object is not a generic
type. This method uses Object.getClass() to get the type for the
specified object, but the getClass() loses the generic type
information because of the Type Erasure feature of Java.
I have a use case where an API will get a generic collection of Key|Value pairs in json. There are no defined attributes in the input json. I need to map it to a generic object and process the data..
JSON input:
"[{ "PostalCode": "345", "Region": "MA", "Enabled": "True" },
{"PostalCode": "989", "Country": "US", "Enabled": "True" }
]";
I am using GSON to deserialize this to java object. On mapping this to a generic object like:
Object obj = new GsonBuilder().create()
.fromJson(jsonInput, Object.class);
i get a an object of Array list of HashMaps (com.google.gson.internal.LinkedTreeMap).
From here how do i get individual key and values like key = PostalCode & value = 345?
Thanks in advance for your help!
As you have already got an array list of com.google.gson.internal.LinkedTreeMap, Now you need to iterate this list to get each key value pair :
Object obj = new GsonBuilder().create().fromJson(jsonInput, Object.class);
List<LinkedTreeMap<Object, Object>> jsonMapList = (List<LinkedTreeMap<Object, Object>>) obj;
for (LinkedTreeMap<Object, Object> jsonMap : jsonMapList) {
Set<Entry<Object, Object>> entrySet = jsonMap.entrySet();
for (Entry<Object, Object> entry : entrySet) {
System.out.println(entry.getKey() + " " + entry.getValue());
}
}
You can do this way. I have tested it.
import this
import com.google.gson.reflect.TypeToken;
import java.lang.reflect.Type;
Type type = new TypeToken<List<LinkedTreeMap<Object, Object>>>(){}.getType();
List<Map<Object, Object>> treeMap = newGsonBuilder().create().fromJson(jsonInput,type);
i want to make a json object where it looks like
{
"version": "1.0",
"message": {
"ID": "test",
"Text": "Acd"
}
}
i need to post this data to server i am trying to add a json object to a json object how to do it
org.json.JSONObject json = new org.json.JSONObject();
org.json.JSONObject root = new org.json.JSONObject();
root.put("version", "1.0");
json.put("ID", "test");
json.put("Text", "acd");
root.put("message", json);
i am getting root.put is not a method for(string,jsonobject)
Create a Map for nested json object, like this:
Map json = new HashMap();
org.json.JSONObject root = new org.json.JSONObject();
root.put("version", "1.0");
json.put("ID", "test");
json.put("Text", "acd");
root.put("message", json);
According to doc:
Put a key/value pair in the JSONObject, where the value will be a
JSONObject which is produced from a Map.
I have hours stuck on this, I dont know why I lose my json, with lose I mean it has the 'structure' but not the values. I am trying to return a JArray with JObjects of the Newtonsoft .Json library. this is a simple example, I am trying to do this with Linq, but get the same results.
I am using asp mvc, I took this example
My controller:
JArray jsonTest = new JArray(
new JObject
{
{"Title", "hello"},
{
"Author", new JObject
{
{"Name", "hello"},
{"Twitter", "hello"}
}
},
{"Date", "hello"},
{"BodyHtml", "hello"},
},
new JObject
{
{"Title", "hello"},
{
"Author", new JObject
{
{"Name", "hello"},
{"Twitter", "hello"}
}
},
{"Date", "hello"},
{"BodyHtml", "hello"},
}
);
return Json(jsonTest,JsonRequestBehavior.AllowGet);
and I get:
as you can see my structure is there(2 objects, second object is an array with 2 elements), but i have no data in it.
I tried jsonTest.tostring() but I get an array of each char in my string.
What am I missing?
Add the two JObjects into an Jarray
like
JObject obj1=new JObject();
JObject obj2=new JObject();
JArray arr=new JArray();
arr.Add(obj1);
arr.Add(obj2);
return arr.ToString(Newtonsoft.Json.Formatting.Indented);