I have a JSON data in the properties file and trying to retrieve it in java. When I am trying to retrieve the JSON data with the property name it's giving only first string/word from the JSON.
Inside the property file, I have the below content.
profile: {"fname": "ABC","lname": "XYZ","meetings":{"morning":10,"evening":60}}
I am trying to read the content using property name 'profile' as a string and I am getting below error message.
Expected ',' instead of ''
can someone help me with the issue, I tried to escape and unescape but still have the same issue
It may depend on what you are using to deserialize the JSON, but well formed JSON is a single element, so what you have needs to be inside of a container. That is, your file content should be:
{ profile: {"fname": "ABC","lname": "XYZ","meetings":{"morning":10,"evening":60}}}
You can do it like this:
profile={"fname": "ABC","lname": "XYZ","meetings":{"morning":10,"evening":60}}
Or if you want to do it in multiple lines
profile={\
"fname": "ABC",\
"lname": "XYZ",\
"meetings":{\
"morning":10,\
"evening":60\
}\
}
Related
I am reading an application.yml file in my java Spring application, and getting this property called body to send in a request (it is a very very long json), sometimes it contains names or values like you will see in the example ahead, and it messes up the yml, any way to solve this so that it takes the json properly? Here is a little example of the kind of data that messes my application.yml (that comes inside that very big json):
data:
body: '{"name":"O'brien"}'
The problem is the ' in the persons name
I tried using: <%='putting the very big json here'%> but then I get "Nested mappings are not allowed in compact mappings", also tried
<%=very big json%> but get the same error
I am looking for a utility which converts one json format to another by respecting at the conversion definitions from a preferably xml file. Is there any library doing something like this in java ?
For example source json is:
{"name":"aa","surname":"bb","accounts":[{"accountid":10,"balance":100}]}
target json is :
{"owner":"aa-bb","accounts":[{"accountid":10,"balance":100}]}
sample config xml :
t.owner = s.name.concat("-").concat(surname)
t.accounts = t.accounts
Ps:Please dont post solutions for this example, it is just for giving an idea, there will be quite different scenarios in mapping.
Is this what u need?
Open input file.
Read / parse JSON from file using a JSON library.
Convert in-memory data structure to new structure.
Open output file
Unparse in-memory data structure to file using JSON library.
I have a JSON file with varying schema.
{"asin":"xxxxxx", "title":"xxxsomething"}
{"asin":"yyyyy"}
{"asin":"zzzzzz", "title":"zzzsomething"}
For which I have written a pig script that makes use of twitter's elephant-bird library to load the JSON data and convert it into a tab separated file.
However if a line in the input JSON file is missing the "title" key (line# 2 in above example), the tvs file also has nothing in place of it, like:
xxxxxx xxxsomething
yyyyyy
zzzzzz zzzsomething
I would like to give custom default value if a particular key is missing. How can I do this using PigLatin?
expected output:
xxxxxx xxxsomething
yyyyyy default_string
zzzzzz zzzsomething
Here's my script:
REGISTER elephant-bird-elephant-bird-4.13/pig/target/elephant-bird-pig-4.13.jar;
REGISTER elephant-bird-elephant-bird-4.13/hadoop-compat/target/elephant-bird-hadoop-compat-4.13.jar;
REGISTER elephant-bird-elephant-bird-4.13/core/target/elephant-bird-core-4.13-thrift9.jar;
reviews = load '../data/Amazon/meta_Amazon_Instant_Video.json'
using com.twitter.elephantbird.pig.load.JsonLoader();
tabs = FOREACH reviews generate (chararray)$0#'asin' as asin_new, (chararray)$0#'title';
A = ORDER tabs BY asin_new;
DESCRIBE A;
STORE A INTO 'hdfs://localhost:9000/meta_Amazon_Instant_Video.tsv';
You can simply write a UDF for that and put the condition that if either one of them is empty then pass the default string.
I'm testing a standalone java application using JMeter and I'm using a OS Process Sampler to execute the jar file. I've given JSON string in java program and I've used publish method to post JSON string to Queue. Now I want to capture the data in JMeter response data and I want to do parameterisation for those fields and I want to use CSV Data Set Config to pass the values to fields and each user should take unique data.
The JSON string looks like below and I want to parameterise these valuse from JMeter response data and pass values from CSV file.
[{
"id": 100001,
"status": "Pending",
"priorityCode": "1",
"miniTeamId": "234256",
"requestName": "General"
}]
Given your CSV file looks like:
100001,Pending,1,234256,General
100002,Done,2,234257,General
etc.
Configure your CSV Data Set config as follows:
Filename: path to your .csv file (better full path)
Variable Names: id,status,priorityCode,miniTeamId,requestName
other fields can be left as they are. By default JMeter will read next line from CSV file by each thread on each loop, when file end will be reached - JMeter will start over.
JMeter Variables populated by the CSV Data Set Config can be referred as ${variableName} or ${__V(variableName)} so parametrised request body should look like:
[
{
"id": ${id},
"status": "${status}",
"priorityCode": "${priorityCode}",
"miniTeamId": "${miniTeamId}",
"requestName": "${requestName}"
}
]
See Using CSV DATA SET CONFIG for more detailed information on parametrisation of JMeter tests using CSV files.
Also be aware of the following test elements:
__csvRead() function - if you need to get data from multiple CSV files
JSON Path Extractor - if you need to get values from response JSON
UPD: passing parametrized JSON string via OS Process Sampler
I have a json file and have used simple.json jar to parse the elements. I could parse the elements successfully. But what I want is that if my json file has three elements by same name, then I want to print each name only when their index is called.
get() prints out all the elements of that name.
Please help!
Following is the json file:
{
"nodes":
[
{
"node":"1",
"ipaddr":"127.0.0.1",
"port":"8443",
"mgport":"9000"
},
{
"node":"2",
"ipaddr":"127.0.0.1",
"port":"8556",
"mgport":"9000"
},
{
"node":"3",
"ipaddr":"127.0.0.1",
"port":"8000",
"mgport":"9000"
}
]
}
I need to retrive only one port value rather than all the values.
I have successfully used the JSON Processing library to do something similar to what you describe.
Here is the link for you to have a look: https://jsonp.java.net/
Could you post also an example of the JSON you'll like to parse?
Use Jackson for parsing JSON. It will make your life easier.
This will help you.
http://www.tutorialspoint.com/jackson/jackson_first_application.htm
Thanks