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Facing issue in extracting value from nested jsonArray

I know a similar question has been posted, however, the answer didn't work for me.
I am new to this RestAssured.I want to get the 'uuid' value if categories equals to 'FUNGI' and feature->features conatains 'VRA'.This is my sample json:
[{
"uuid":"e223d29b-499b-b58b-995e-654bef1aab03",
"categories":[
{
"uuid":"89d1c022-4453-5f6b-883c-46730d429b2a",
"name":"FERTI"
}
],
"minRateSi":0.0
},
{
"uuid":"93015a1b-76ac-2ca3-2bbc-5ae5480962c2",
"categories":[
{
"uuid":"61c951b1-3e47-f0a0-80d8-3d43efa339fb",
"name":"FUNGI"
}
],
"minRateSi":0.0,
"maxRateSi":7.5E-8,
"features":[
{
"id":"9b4ee6b2-ae2d-6c9a-af77-08a4b749031f",
"vraMinRate":2.0E-8,
"features":[
"VRA"
]
},
{
"id":"ec0d0f52-dd71-ebb9-0a39-831768fe4490",
"vraMinRateSi":3.0E-8,
"features":[
"VRA"
]
}
]
},
{
"uuid":"38290452-4937-4f33-c54d-7f502b84ed99",
"categories":[
{
"uuid":"2c9d8cc0-01bc-899d-6782-cf412e90fd78",
"name":"FUNGI"
}
],
"maxRateSi":1.0E-7,
"features":[
{
"id":"9b4ee6b2-ae2d-6c9a-af77-08a4b749031f",
"vraMinRateSi":6.5E-8
},
{
"cropUuid":"ec0d0f52-dd71-ebb9-0a39-831768fe4490",
"vraMinRateSi":5.0E-8
}
]}]

Woo , okay your case was pretty hard to break down, but as far as you know how to use JSONArray and JSONObject classes you will be fine.
First of all let me mention how you should approach this kind of scenarios.
I prefer using an online JSON Formatter like this one simply paste your JSON payload and you will be able to tell whether to use JSONObject or JSONArray.
Please take a note here, and check out how to parse json payloads
This code will work for you, although you need to find out the logic behind it and implement JSON parsing accordingly in your future cases.
//declaring your payload
String myJsonPayload = "[{\r\n" + " \"uuid\":\"e223d29b-499b-b58b-995e-654bef1aab03\",\r\n" +
" \"categories\":[\r\n" + " {\r\n" +
" \"uuid\":\"89d1c022-4453-5f6b-883c-46730d429b2a\",\r\n" +
" \"name\":\"FERTI\"\r\n" + " }\r\n" + " ],\r\n" +
" \"minRateSi\":0.0\r\n" + " },\r\n" + " {\r\n" +
" \"uuid\":\"93015a1b-76ac-2ca3-2bbc-5ae5480962c2\",\r\n" + " \"categories\":[\r\n" +
" {\r\n" + " \"uuid\":\"61c951b1-3e47-f0a0-80d8-3d43efa339fb\",\r\n" +
" \"name\":\"FUNGI\"\r\n" + " }\r\n" + " ],\r\n" +
" \"minRateSi\":0.0,\r\n" + " \"maxRateSi\":7.5E-8,\r\n" + " \"features\":[\r\n" +
" {\r\n" + " \"id\":\"9b4ee6b2-ae2d-6c9a-af77-08a4b749031f\",\r\n" +
" \"vraMinRate\":2.0E-8,\r\n" + " \"features\":[\r\n" +
" \"VRA\"\r\n" + " ]\r\n" + " },\r\n" + " {\r\n" +
" \"id\":\"ec0d0f52-dd71-ebb9-0a39-831768fe4490\",\r\n" +
" \"vraMinRateSi\":3.0E-8,\r\n" + " \"features\":[\r\n" +
" \"VRA\"\r\n" + " ]\r\n" + " }\r\n" + " ]\r\n" + " },\r\n" +
" {\r\n" + " \"uuid\":\"38290452-4937-4f33-c54d-7f502b84ed99\",\r\n" +
" \"categories\":[\r\n" + " {\r\n" +
" \"uuid\":\"2c9d8cc0-01bc-899d-6782-cf412e90fd78\",\r\n" +
" \"name\":\"FUNGI\"\r\n" + " }\r\n" + " ],\r\n" +
" \"maxRateSi\":1.0E-7,\r\n" + " \"features\":[\r\n" + " {\r\n" +
" \"id\":\"9b4ee6b2-ae2d-6c9a-af77-08a4b749031f\",\r\n" +
" \"vraMinRateSi\":6.5E-8\r\n" + " },\r\n" + " {\r\n" +
" \"cropUuid\":\"ec0d0f52-dd71-ebb9-0a39-831768fe4490\",\r\n" +
" \"vraMinRateSi\":5.0E-8\r\n" + " }\r\n" + " ]}]";
JSONArray json = new JSONArray(myJsonPayload);
System.out.println(json);
for (int i = 0; i < json.length(); i++) {
JSONObject object = (JSONObject) json.get(i);
// System.out.println(object); // you have each JSONObject { } contained in the
// Outer JSONArray [ ]
//Getting both uuid's since you didn't answer which one.
String uuid = object.getString("uuid");
System.out.println("\n\n Next Object - Outer UUID: " + uuid);
JSONArray categories = object.getJSONArray("categories");
System.out.println(categories);
if (((JSONObject) categories.get(0)).getString("name").equalsIgnoreCase("fungi")) {
System.out.println("\nFUNGI found!:\n");
//Getting the inner UUID
String uuidOfFungi = ((JSONObject) categories.get(0)).getString("uuid");
System.out.println("Inner UUID: " + uuidOfFungi);
} else {
System.out.println("\nFUNGI NOT FOUND (ABORTING):\n");
}
// Getting Features:
try {
JSONArray featuresObject = object.getJSONArray("features");
for (int index = 0; index < featuresObject.length(); index++) {
try {
JSONObject features = featuresObject.getJSONObject(index);
//Getting VRA
String vraFeatues = features.getJSONArray("features").getString(0);
} catch (JSONException e) {
System.out.println("No inner JSONArray in features JSONObject");
}
}
} catch (JSONException e) {
System.out.println("JSON OBJECT " + i + " HAS NO FEATURES ARRAY");
}
}
Depending again on your use-case it's up to you how you will get the JSON payload into your program.
Getting it from remote URL using Java
Passing it as an argument on java -jar execution time , which i don't really recommend
Either case, modifications need to be done in order to initialize myJsonPayload accordingly.
Hope it helped!

How to replace following code with the following changes. Please see the code snippet

I want to change the firstPattern with the secondPattern. When I am using Pattern Matcher / String.replaceAll()
I am using the following logic to replace
System.out.println(fileContent.replaceAll(firstPattern, secondPattern));
I am getting following error =
at java.util.regex.Pattern.error(Pattern.java:1955)
at java.util.regex.Pattern.closure(Pattern.java:3157)
at java.util.regex.Pattern.sequence(Pattern.java:2134)
at java.util.regex.Pattern.expr(Pattern.java:1996)
at java.util.regex.Pattern.compile(Pattern.java:1696)
at java.util.regex.Pattern.<init>(Pattern.java:1351)
at java.util.regex.Pattern.compile(Pattern.java:1028)
at java.lang.String.replaceAll(String.java:2223)
It is happening because in the first pattern I have used "{" and "}" brace. So it is throwing an error. Don't know how to replace these.
String firstPattern = "text.append(\" where \");\r\n" +
" text.append(\"ObjId\" + \" = \");\r\n" +
" text.append(getObjId().toString());\r\n" +
"\r\n" +
" text.append(\" and \");\r\n" +
" text.append(\" LastCngDTime = \");\r\n" +
"\r\n" +
" try {\r\n" +
" tempString = dbaExecObj.Get_DataConverter()\r\n" +
" .SmsTimeStampToDBMSTimestampString(LastCngDTime,\r\n" +
" \"-WQ\");\r\n" +
" } catch (Exception e) {\r\n" +
" throw new SmsTntResult(new SmsSystemResult(logger,\r\n" +
" SmsCsvWhoAmI.getMyFullyQualifiedMethodName(),\r\n" +
" SmsTntCodes.DATA_TYPE_CONVERSION_ERROR,\r\n" +
" SmsSystemResult.ERROR));\r\n" +
" }\r\n" +
"\r\n" +
" text.append(tempString);";
String secondPattern = "text.append(\" where \");\r\n" +
" text.append(\"ObjId\" + \" = \");\r\n" +
" text.append(getObjId().toString());\r\n" +
"\r\n" +
" text.append(\" and \");\r\n" +
" text.append(\" LastCngDTime = \");\r\n" +
"\r\n" +
" try {\r\n" +
" tempString = dbaExecObj.Get_DataConverter()\r\n" +
" .SmsTimeStampToDBMSTimestampString(LastCngDTime,\r\n" +
" \"-WQ\");\r\n" +
" } catch (Exception e) {\r\n" +
" throw new SmsTntResult(new SmsSystemResult(logger,\r\n" +
" SmsCsvWhoAmI.getMyFullyQualifiedMethodName(),\r\n" +
" SmsTntCodes.DATA_TYPE_CONVERSION_ERROR,\r\n" +
" SmsSystemResult.ERROR));\r\n" +
" }\r\n" +
"\r\n" +
" text.append(\"CAST(\");" +
" text.append(tempString);" +
" text.append(\" AS datetime)\");";
String fileContent = new Scanner(new File(filePath)).useDelimiter("\\A").next();
System.out.println(fileContent.replaceAll(firstPattern, secondPattern));

Losing focus on SwingX JCOMBO BOX

I want to achieve AutoSuggest ComboBox 2 problems I am facing
1st getting an array of id and name both want the name only.
Array i am receiving
2nd losing focus on typing the text.
Please help
database Query
public SentenceList getAutoProductList() {
return new StaticSentence(s, "SELECT "
+ "P.ID, "
+ "P.REFERENCE, "
+ "P.CODE, "
+ "P.CODETYPE, "
+ "P.NAME, "
+ "P.PRICEBUY, "
+ "P.PRICESELL, "
+ "P.CATEGORY, "
+ "P.TAXCAT, "
+ "P.ATTRIBUTESET_ID, "
+ "P.STOCKCOST, "
+ "P.STOCKVOLUME, "
+ "P.IMAGE, "
+ "P.ISCOM, "
+ "P.ISSCALE, "
+ "P.ISKITCHEN, "
+ "P.PRINTKB, "
+ "P.SENDSTATUS, "
+ "P.ISSERVICE, "
+ "P.ATTRIBUTES, "
+ "P.DISPLAY, "
+ "P.ISVPRICE, "
+ "P.ISVERPATRIB, "
+ "P.TEXTTIP, "
+ "P.WARRANTY, "
+ "P.STOCKUNITS "
+ "FROM PRODUCTS P "
+ "ORDER BY NAME", null, ProductInfoExt.getSerializerRead());
}
Auto Complete JcomboBox Code
SentenceList sentProductNames = dlSales.getAutoProductList();
m_JComboProductName.setEditable(true);
ComboBoxValModel m_jProductNameModel = new ComboBoxValModel();
editor = (JTextComponent) m_JComboProductName.getEditor().getEditorComponent();
List productList = null;
try {
productList = sentProductNames.list();
} catch (Exception e) {
}
productList.add(0, null);
m_jProductNameModel = new ComboBoxValModel(productList);
m_JComboProductName.setModel(m_jProductNameModel);
AutoCompleteDecorator.decorate(m_JComboProductName);
System.out.println("product List "+ productList);
if(m_JComboProductName.getItemCount()>0){
m_JComboProductName.setSelectedIndex(0);
}

Cycle for error

I have one problem with my cycle for.
I parse data with JsonParser and after i use one cycle for print all data but i recive only the last result.
This is the code:
try{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++){
JSONObject json_data = jArray.getJSONObject(i);
Log.d("id_Persons", "id: " + json_data.getString("id_Persons")
+ ", nome: " + json_data.getString("name")
+ json_data.getString("address")
);
stringaFinale = json_data.getString("id_Persons") + " "
+ json_data.getString("name") + " "
+ json_data.getString("address");
}
return stringaFinale;
}
catch(JSONException e){
Log.e("log_tag", "Error parsing data "+e.toString());
}
but, with
Log.d("id_Persons", "id: " + json_data.getString("id_Persons")
+ ", nome: " + json_data.getString("name")
+ json_data.getString("address")
);
I do not understand what is the error.
This is the screen of app

You are overwriting its value in each iteration of for loop.
Change
stringaFinale = json_data.getString("id_Persons") + " " + json_data.getString("name") + " " + json_data.getString("address");
to
stringaFinale += json_data.getString("id_Persons") + " " + json_data.getString("name") + " " + json_data.getString("address");
Note: You should initialize stringaFinale with empty string like this
String stringaFinale = "";
Update: Another nicer way is to use StringBuilder like this
// declare it before the loop
StringBuilder stringaFinale = new StringBuilder(200); // use appropriate size
//Inside the loop
stringaFinale.append(json_data.getString("id_Persons") + " " + json_data.getString("name") + " " + json_data.getString("address"));
//Get the value
stringFinale.toString();

JSON String to POJO, using GSON, clarification needed

I have a JSON file, as String:
String compString = "{\n" +
" \"Component\": {\n" +
" \"name\": \"Application\",\n" +
" \"environment\": \"QA\",\n" +
" \"hosts\": [\n" +
" \"box1\",\n" +
" \"box2\"\n" +
" ],\n" +
" \"directories\": [\n" +
" \"/path/to/dir1/\",\n" +
" \"/path/to/dir2/\",\n" +
" \"/path/to/dir1/subdir/\",\n" +
" ]\n" +
" }\n" +
" }";
I have a bean representing it (correct if incorrectly)
public class Component {
String name;
String environment;
List<String> hosts = new ArrayList<String>();
List<String> directories = new ArrayList<String>();
// standard getters and setters
}
I am trying to feed this String to this class by:
Gson gson = new Gson();
Component component = gson.fromJson(compString, Component.class);
System.out.println(component.getName());
Above does not work. (I am getting null back, as if Component's name value is never set)
What am i missing please?

In fact, you have to remove the enclosing class from Json.
Indeed, JSON begins with the content of the enclosing class.
So your JSON would be:
String compString = "{\n" +
" \"name\": \"Application\",\n" +
" \"environment\": \"QA\",\n" +
" \"hosts\": [\n" +
" \"box1\",\n" +
" \"box2\"\n" +
" ],\n" +
" \"directories\": [\n" +
" \"/path/to/dir1/\",\n" +
" \"/path/to/dir2/\",\n" +
" \"/path/to/dir1/subdir/\",\n" +
" ]\n" +
" }\n";

String compString =
" {\n" +
" \"name\": \"Application\",\n" +
" \"environment\": \"QA\",\n" +
" \"hosts\": [\n" +
" \"box1\",\n" +
" \"box2\"\n" +
" ],\n" +
" \"directories\": [\n" +
" \"/path/to/dir1/\",\n" +
" \"/path/to/dir2/\",\n" +
" \"/path/to/dir1/subdir/\",\n" +
" ]}" ;
I think you should read more about json, I have removed something in your json string and then success.