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Highchart tooltip value should be format based on locale

For example, I want to display the below format:
Italy Format : 1.325.000
Us Format : 1,325,000
etc.
But highchart display another format using the below response.
Based on locale it shows the value in tooltip dynamically.
I am trying with below response.
Highcharts.chart('container', {
"tooltip" : {
"shared" : true
},
"legend" : {
"enabled" : true,
"reversed" : false
},
"credits" : {
"enabled" : false
},
"exporting" : {
"enabled" : false
},
"chart" : {
"zoomType" : "xy"
},
"title" : {
"text" : "Financial analytic"
},
"xAxis" : [ {
"categories" : [ "Amar", "Kiran", "Venkatesh" ],
"crosshair" : true
} ],
"yAxis" : [ {
"title" : {
"text" : "Financial"
},
"labels" : {
"format" : "${value:.2f}USD"
}
} ],
"series" : [ {
"type" : "column",
"name" : "Financial",
"data" : [ 1325000.0, 1740000.0, 1560000.0 ],
"tooltip" : {
"valueDecimals" : 2,
"valuePrefix" : "$",
"valueSuffix" : "USD"
},
"yAxis" : 0
}]
});

You need to set thousandsSep in the lang options:
Highcharts.setOptions({
lang: {
thousandsSep: ','
}
});
Live demo: http://jsfiddle.net/BlackLabel/4m79t50g/1/
API Reference: https://api.highcharts.com/gantt/lang.thousandsSep

Cassandra: Java equivalent method to `sstabledump`?

I'm writing test for a java program which outputs cassandra sstable files (e.g. mc-1-big-Data.db). Now what I have is an correct output file (correct.db). To check if the program is correct or not, I need to dump the two files, and compare each field inside excep "liveness_info" (which means I cannot directly compare mc-1-big-Data.db with correct.db).
I know I can use sstabledump to do this. But this command runs in shell and I may not call it directly in Java since I'm supposed to do a unit test. Therefore, I'd like to have an equivalent method in Java. But after searching for a long time I still didn't find any. Could anyone give some suggestions? Thanks!
[update]
I've tried the method #JimWartnick mentions. When I used SSTableExport.main(...), I got this error java.lang.ExceptionInInitializerError caused by org.apache.cassandra.exceptions.ConfigurationException: Expecting URI in variable: [cassandra.config]. Found[cassandra.yaml]. Please prefix the file with [file:///] for local files and [file://<server>/] for remote files.
It seems this requires me to setup cassandra server, but I suspect for a unit test I cannot do this. Any suggestions? Thanks!
[example dump]
Just in case it's helpful, I attach the example dump below.
[
{
"partition" : {
"key" : [ "1" ],
"position" : 0
},
"rows" : [
{
"type" : "row",
"position" : 33,
"liveness_info" : { "tstamp" : "2019-08-15T23:52:11.715Z" },
"cells" : [
{ "name" : "name", "value" : "Amy" }
]
}
]
},
{
"partition" : {
"key" : [ "2" ],
"position" : 34
},
"rows" : [
{
"type" : "row",
"position" : 67,
"liveness_info" : { "tstamp" : "2019-08-15T23:52:11.738Z" },
"cells" : [
{ "name" : "name", "value" : "Bob" }
]
}
]
},
{
"partition" : {
"key" : [ "4" ],
"position" : 68
},
"rows" : [
{
"type" : "row",
"position" : 103,
"liveness_info" : { "tstamp" : "2019-08-15T23:52:11.738Z" },
"cells" : [
{ "name" : "name", "value" : "Caleb" }
]
}
]
},
{
"partition" : {
"key" : [ "3" ],
"position" : 104
},
"rows" : [
{
"type" : "row",
"position" : 133,
"liveness_info" : { "tstamp" : "2019-08-15T23:52:11.738Z" },
"cells" : [
{ "name" : "name", "value" : "" }
]
}
]
}

Spring MongoDB Aggregation Group - Can't get the group query right

I have a document in a MongoDB, which looks like follows.
{
"_id" : ObjectId("5ceb812b3ec6d22cb94c82ca"),
"key" : "KEYCODE001",
"values" : [
{
"classId" : "CLASS_01",
"objects" : [
{
"code" : "DD0001"
},
{
"code" : "DD0010"
}
]
},
{
"classId" : "CLASS_02",
"objects" : [
{
"code" : "AD0001"
}
]
}
]
}
I am interested in getting a result like follows.
{
"classId" : "CLASS_01",
"objects" : [
{
"code" : "DD0001"
},
{
"code" : "DD0010"
}
]
}
To get this, I came up with an aggregation pipeline in Robo 3T, which looks like follows. And it's working as expected.
[
{
$match:{
'key':'KEYCODE001'
}
},
{
"$unwind":{
"path": "$values",
"preserveNullAndEmptyArrays": true
}
},
{
"$unwind":{
"path": "$values.objects",
"preserveNullAndEmptyArrays": true
}
},
{
$match:{
'values.classId':'CLASS_01'
}
},
{
$project:{
'object':'$values.objects',
'classId':'$values.classId'
}
},
{
$group:{
'_id':'$classId',
'objects':{
$push:'$object'
}
}
},
{
$project:{
'_id':0,
'classId':'$_id',
'objects':'$$objects'
}
}
]
Now, when I try to do the same in a SpringBoot application, I can't get it running. I ended up having the error java.lang.IllegalArgumentException: Invalid reference '$complication'!. Following is what I have done in Java so far.
final Aggregation aggregation = newAggregation(
match(Criteria.where("key").is("KEYCODE001")),
unwind("$values", true),
unwind("$values.objects", true),
match(Criteria.where("classId").is("CLASS_01")),
project().and("$values.classId").as("classId").and("$values.objects").as("object"),
group("classId", "objects").push("$object").as("objects").first("$classId").as("_id"),
project().and("$_id").as("classId").and("$objects").as("objects")
);
What am I doing wrong? Upon research, I found that multiple fields in group does not work or something like that (please refer to this question). So, is what I am currently doing even possible in Spring Boot?

After hours of debugging + trial and error, found the following solution to be working.
final Aggregation aggregation = newAggregation(
match(Criteria.where("key").is("KEYCODE001")),
unwind("values", true),
unwind("values.objects", true),
match(Criteria.where("values.classId").is("CLASS_01")),
project().and("values.classId").as("classId").and("values.objects").as("object"),
group(Fields.from(Fields.field("_id", "classId"))).push("object").as("objects"),
project().and("_id").as("classId").and("objects").as("objects")
);
It all boils down to group(Fields.from(Fields.field("_id", "classId"))).push("object").as("objects") that which introduces a org.springframework.data.mongodb.core.aggregation.Fields object that wraps a list of org.springframework.data.mongodb.core.aggregation.Field objects. Within Field, the name of the field and the target could be encapsulated. This resulted in the following pipeline which is a match for the expected.
[
{
"$match" :{
"key" : "KEYCODE001"
}
},
{
"$unwind" :{
"path" : "$values", "preserveNullAndEmptyArrays" : true
}
},
{
"$unwind" :{
"path" : "$values.objects", "preserveNullAndEmptyArrays" : true
}
},
{
"$match" :{
"values.classId" : "CLASS_01"
}
},
{
"$project" :{
"classId" : "$values.classId", "object" : "$values.objects"
}
},
{
"$group" :{
"_id" : "$classId",
"objects" :{
"$push" : "$object"
}
}
},
{
"$project" :{
"classId" : "$_id", "objects" : 1
}
}
]
Additionally, figured that there is no need to using $ sign anywhere and everywhere.

why I get nothing about kafka metrics with jmxtrans since I can get JVM heap info?

I use kafka_2.11-0.9.0.1, I try two version of jason config files. I can get JVM info like heapmem and GC
enter image description here
But when I wanted to get kafka metrics, there is nothing out. This is the jmxtrans log.
enter image description here
And more, This is two version jason file I user:
{
"servers" : [ {
"port" : "9999",
"host" : "localhost",
"queries" : [ {
"outputWriters" : [ {
"#class" : "com.googlecode.jmxtrans.model.output.StdOutWriter",
"settings" : {
}
} ],
"obj" : "kafka.server:type=BrokerTopicMetrics,name=MessagesInPerSec,topic=test",
"attr" : [ "Count"]
},{
"outputWriters" : [ {
"#class" : "com.googlecode.jmxtrans.model.output.StdOutWriter",
"settings" : {
}
} ],
"obj" : "kafka.server:type=BrokerTopicMetrics,name=*",
"resultAlias": "Kafka",
"attr" : [ "Count","OneMinuteRate"]
}
],
"numQueryThreads" : 2
} ]
}
the other is :
{
"outputWriters" : [ {
"#class" : "com.googlecode.jmxtrans.model.output.KeyOutWriter",
"settings" : {
"outputFile" : "testowo-counts3.txt",
"maxLogFileSize" : "10MB",
"maxLogBackupFiles" : 200,
"delimiter" : "\t",
"debug" : true
}
} ],
"obj": "\"kafka.network\":type=\"RequestMetrics\",name=\"Produce-RequestsPerSec\"",
"resultAlias": "produce",
"attr": [
"Count",
"OneMinuteRate"
]
} ,{
"outputWriters" : [ {
"#class" : "com.googlecode.jmxtrans.model.output.KeyOutWriter",
"settings" : {
"outputFile" : "testowo-gc.txt",
"maxLogFileSize" : "10MB",
"maxLogBackupFiles" : 200,
"delimiter" : "\t",
"debug" : true
}
} ],
"obj": "java.lang:type=GarbageCollector,name=*",
"resultAlias": "GC",
"attr": [
"CollectionCount",
"CollectionTime"
]
}

This is the version problem. I recommend jconsole to see the Mbeans tree. It helps a lot.

Find the average of array element in MongoDB using java

I am new to MongoDB. I have to find the average of array element in Mongo DB
e.g
{
"_id" : ObjectId("51236fbc3004f02f87c62e8e"),
"query" : "iPad",
"rating" : [
{
"end" : "130",
"inq" : "403",
"executionTime" : "2013-02-19T12:27:40Z"
},
{
"end" : "152",
"inq" : "123",
"executionTime" : "2013-02-19T12:35:28Z"
}
]
}
I want the average of "inq" where query:iPad
Here the output should be:
inq=263
I searched in google and got the aggregate method but not able to convert it in java code.
Thanks in advance
Regards

Let's try to decompose that problem. I would start with:
db.c.aggregate({$match: {query: "iPad"}}, {$unwind:"$rating"}, {$project: {_id:0,
q:"$query",i:"$rating.inq"}})
The projection is not required but makes the rest a little bit more readable:
{
"result" : [
{
"q" : "iPad",
"i" : "403"
},
{
"q" : "iPad",
"i" : "123"
}
],
"ok" : 1
}
So how do I group that? Of course, by "$q":
db.c.aggregate({$match: {query: "iPad"}}, {$unwind:"$rating"}, {$project: {_id:0,
q:"$query",i:"$rating.inq"}}, {$group:{_id: "$q"}}) :
{ "result" : [ { "_id" : "iPad" } ], "ok" : 1 }
Now let's add some aggregation operators:
db.c.aggregate({$match: {query: "iPad"}}, {$unwind:"$rating"}, {$project: {_id:0, q:"$query",i:"$rating.inq"}}, {$group:{_id: "$q", max: {$max: "$i"}, min: {$min: "$i"}}}) :
{
"result" : [
{
"_id" : "iPad",
"max" : "403",
"min" : "123"
}
],
"ok" : 1
}
Now comes the average:
db.c.aggregate({$match: {query: "iPad"}}, {$unwind:"$rating"}, {$project:
{_id:0,q:"$query",i:"$rating.inq"}}, {$group:{_id: "$q", av: {$avg:"$i"}}});

Try to get the java drivers for mongodb. I am able to get this link from mongodb site. Please check this: http://docs.mongodb.org/ecosystem/tutorial/use-aggregation-framework-with-java-driver/#java-driver-and-aggregation-framework