Elastic Search: How to write multi statement scripts? - groovy

I have values stored on a document in an Elasticsearch index.
I need to do some date manipulation on the values and return a boolean value to be used in a filter.
The script covers several lines, and I can't get it to run.
I've written other single scripts that work fine, however I know less than nothing about Groovy and very little about Elastic search.
Each and every sample I can find with a script has one line and only one line.
So basically how would I take this perfectly valid script
"script": {
"script": "doc['state'].value == 'completed' && doc['lastStateUpdate'].value < doc['dueDate'].value"
}
And turn it into some thing like
"script": {
"script": "def isCompleted = doc['state'].value == 'completed'
def preSLA = doc['lastStateUpdate'].value < doc['dueDate'].value
return isCompleted && preSLA"
}
I'm not mad about the idea of creating a write-only one liner that expresses the logic, I can see more of these coming down the line and while this one is relatively straight-forward, a "one liner" isn't going to cut it.
The alternative here is to do some preprocessing on the document before it's indexed, and add extra data to it. However this has drawbacks in that it's rather inflexible and we'd need to reindex all the data to change these aggregations, which we'd rather not do.

You simply need to separate each statement with a semicolon:
"script": {
"script": "isCompleted = doc['state'].value == 'completed'; preSLA = doc['lastStateUpdate'].value < doc['dueDate'].value; return isCompleted && preSLA;"
}
Make sure to not add line breaks inside your script string, though, as it would not be valid JSON.

If you want to break your script into multiple lines you have to surrond your script with """ docs
`"query": {
"function_score": {
"script_score": {
"script": {
"lang": "painless",
"source": """
int total = 0;
for (int i = 0; i < doc['goals'].length; ++i) {
total += doc['goals'][i];
}
return total;
"""
}
}
}
}
}`
Update: For some versions of Elasticsearch source should be replaced with inline docs

Related

Jmeter how do I generate multiple HTTP request body in one session?

Here is my use case: I had a JSR223 post processor in place to store "account ID" that qualifies the condition into an array. And then I'll need to construct http request body using the accountId in the array one at a time to test the API. My question is that:
With the code right below, there was only one request body constructed with the last accountId in the array.. However I needed to generate multiple HTTP request bodies from the loop so that I could hit the api with every each accountId in the array. Is the simple controller able to accomplish this? If so, what shall I do? Thanks!
def accountIds = []
for (int i=0; i < territoryTableDataList.size(); i++) {
if (territoryTableDataList[i].change == "DROPPED") {
accountIds.add(territoryTableDataList[i].id)
}
}
for (int j=0; j < accountIds.size(); j++) {
vars.put("accountId", accountIds[j])
log.info("*******************The account ID is: " + accountIds[j])
}
HTTP Request Body:
{
"globalRequestId": "auto-perftest-00",
"challengeReasons": [
"other__c"
],
"feedbackRemoveAccountRequests": [
{
"requestId": "auto-perftest-001",
"accountId": "${accountId}"
}
]
}
for (int j=0; j < accountIds.size(); j++) {
vars.put("accountId", accountIds[j])
//^^^^^^^^^^^^^^^^^^^^
here you're overwriting the accountId JMeter Variable with the new value of accountIds[j] each iteration of the loop so it always contains the last value.
You need to replace this line with something like:
vars.put("accountId_" + (j+1), accountIds[j])
This way you will get the following JMeter Variables generated:
accountId_1=foo
accountId_2=bar
accountId_3=baz
etc.
And these variables can be iterated using ForEach Controller:
Demo:
More information on Groovy scripting in JMeter: Apache Groovy - Why and How You Should Use It

Groovy match doc files in folder

I am trying to know if a Pull Request in Github has to execute a pipeline in Jenkins or not (depending of pushing code or documentation). For that I have this function, but I am not able to math patterns this way:
"i" is an array where each element is a modified file
If the file is in doc/ or .github/ folder it is supposed to be documentation and no execution will be built in Jenkins.
I have made a change in .github/PULL_REQUESTS.md but this functions returns me FALSE
// Compares the modified files to see if it is only documentation
def checkPRDoc(String[] prChangeLog) {
def pushing_doc = false
println("Modified files:")
for(int i in prChangeLog) {
println(i);
if ((i ==~ /doc*/) || (i ==~ /README.md/) || (i ==~ /.github*/)) {
pushing_doc = true
}
if (pushing_doc == false) {
break;
}
}
return pushing_doc
}
Any help? Thanks a lot

If statements not working with JSON array

I have a JSON file of 2 discord client IDs `{
{
"premium": [
"a random string of numbers that is a client id",
"a random string of numbers that is a client id"
]
}
I have tried to access these client IDs to do things in the program using a for loop + if statement:
for(i in premium.premium){
if(premium.premium[i] === msg.author.id){
//do some stuff
}else{
//do some stuff
When the program is ran, it runs the for loop and goes to the else first and runs the code in there (not supposed to happen), then runs the code in the if twice. But there are only 2 client IDs and the for loop has ran 3 times, and the first time it runs it goes instantly to the else even though the person who sent the message has their client ID in the JSON file.
How can I fix this? Any help is greatly appreciated.
You may want to add a return statement within your for loop. Otherwise, the loop will continue running until a condition has been met, or it has nothing else to loop over. See the documentation on for loops here.
For example, here it is without return statements:
const json = {
"premium": [
"aaa-1",
"bbb-1"
]
}
for (i in json.premium) {
if (json.premium[i] === "aaa-1") {
console.log("this is aaa-1!!!!")
} else {
console.log("this is not what you're looking for-1...")
}
}
And here it is with return statements:
const json = {
"premium": [
"aaa-2",
"bbb-2"
]
}
function loopOverJson() {
for (i in json.premium) {
if (json.premium[i] === "aaa-2") {
console.log("this is aaa-2!!!!")
return
} else {
console.log("this is not what you're looking for-2...")
return
}
}
}
loopOverJson()
Note: without wrapping the above in a function, the console will show: "Syntax Error: Illegal return statement."
for(i in premium.premium){
if(premium.premium[i] === msg.author.id){
//do some stuff
} else{
//do some stuff
}
}
1) It will loop through all your premium.premium entries. If there are 3 entries it will execute three times. You could use a break statement if you want to exit the loop once a match is found.
2) You should check the type of your msg.author.id. Since you are using the strict comparison operator === it will evaluate to false if your msg.author.id is an integer since you are comparing to a string (based on your provided json).
Use implicit casting: if (premium.premium[i] == msg.author.id)
Use explicit casting: if (premium.premium[i] === String(msg.author.id))
The really fun and easy way to solve problems like this is to use the built-in Array methods like map, reduce or filter. Then you don't have to worry about your iterator values.
eg.
const doSomethingAuthorRelated = (el) => console.log(el, 'whoohoo!');
const authors = premiums
.filter((el) => el === msg.author.id)
.map(doSomethingAuthorRelated);
As John Lonowski points out in the comment link, using for ... in for JavaScript arrays is not reliable, because its designed to iterate over Object properties, so you can't be really sure what its iterating on, unless you've clearly defined the data and are working in an environment where you know no other library has mucked with the Array object.

protractor: filter until finding first valid element

I am doing e2e testing on a site that contains a table which I need to iterate "until" finding one that doesn't fail when I click on it.
I tried it using filter and it is working:
this.selectValidRow = function () {
return Rows.filter(function (row, idx) {
row.click();
showRowPage.click();
return errorMessage.isDisplayed().then(function (displayed) {
if (!displayed) {
rowsPage.click(); // go back to rows Page, all the rows
return true;
}
});
}).first().click();
};
The problem here is that it is iterating all available rows, and I only need the first one that is valid (that doesn't show an errorMessage).
The problem with my current approach is that it is taking too long, as my current table could contain hundreds of rows.
Is it possible to filter (or a different method) and stop iterating when first valid occurrence appears?, or could someone come up with a better approach?
If you prefer a non-protractor approach of handling this situation, I would suggest async.whilst. async is a very popular module and its highly likely that your application is using it. I wrote below code here in the editor, but it should work, you can customize it based on your needs. Hopefully you get an idea of what I'm doing here.
var found = false, count = 0;
async.whilst(function iterator() {
return !found && count < Rows.length;
}, function search(callback) {
Rows[count].click();
showRowPage.click();
errorMessage.isDisplayed().then(function (displayed) {
if (!displayed) {
rowsPage.click(); // go back to rows Page, all the rows
found = true; //break the loop
callback(null, Rows[count]); //all good, lets get out of here
} else {
count = count + 1;
callback(null); //continue looking
}
});
}, function aboutToExit(err, rowIwant) {
if(err) {
//if search sent an error here;
}
if(!found) {
//row was not found;
}
//otherwise as you were doing
rowIwant.click();
});
You are right, filter() and other built-in Protractor "functional programming" methods would not solve the "stop iterating when first valid occurrence appears" case. You need the "take some elements while some condition evaluates to true" (like the itertools.takewhile() in Python world).
Fortunately, you can extend ElementArrayFinder (preferably in onPrepare()) and add the takewhile() method:
Take elements while a condition evaluates to true (extending ElementArrayFinder)
Note that I've proposed it to be built-in, but the feature request is still open:
Add takewhile() method to ElementArrayFinder

Map/Reduce differences between Couchbase & CloudAnt

I've been playing around with Couchbase Server and now just tried replicating my local db to Cloudant, but am getting conflicting results for my map/reduce function pair to build a set of unique tags with their associated projects...
// map.js
function(doc) {
if (doc.tags) {
for(var t in doc.tags) {
emit(doc.tags[t], doc._id);
}
}
}
// reduce.js
function(key,values,rereduce) {
if (!rereduce) {
var res=[];
for(var v in values) {
res.push(values[v]);
}
return res;
} else {
return values.length;
}
}
In Cloudbase server this returns JSON like:
{"rows":[
{"key":"3d","value":["project1","project3","project8","project10"]},
{"key":"agents","value":["project2"]},
{"key":"fabrication","value":["project3","project5"]}
]}
That's exactly what I wanted & expected. However, the same query on the Cloudant replica, returns this:
{"rows":[
{"key":"3d","value":4},
{"key":"agents","value":1},
{"key":"fabrication","value":2}
]}
So it somehow only returns the length of the value array... Highly confusing & am grateful for any insights by some M&R ninjas... ;)
It looks like this is exactly the behavior you would expect given your reduce function. The key part is this:
else {
return values.length;
}
In Cloudant, rereduce is always called (since the reduce needs to span over multiple shards.) In this case, rereduce calls values.length, which will only return the length of the array.
I prefer to reduce/re-reduce implicitly rather than depending on the rereduce parameter.
function(doc) { // map
if (doc.tags) {
for(var t in doc.tags) {
emit(doc.tags[t], {id:doc._id, tag:doc.tags[t]});
}
}
}
Then reduce checks whether it is accumulating document ids from the identical tag, or whether it is just counting different tags.
function(keys, vals, rereduce) {
var initial_tag = vals[0].tag;
return vals.reduce(function(state, val) {
if(initial_tag && val.tag === initial_tag) {
// Accumulate ids which produced this tag.
var ids = state.ids;
if(!ids)
ids = [ state.id ]; // Build initial list from the state's id.
return { tag: val.tag,
, ids: ids.concat([val.id])
};
} else {
var state_count = state.ids ? state.ids.length : state;
var val_count = val.ids ? val.ids.length : val;
return state_count + val_count;
}
})
}
(I didn't test this code, but you get the idea. As long as the tag value is the same, it doesn't matter whether it's a reduce or rereduce. Once different tags start reducing together, it detects that because the tag value will change. So at that point just start accumulating.
I have used this trick before, although IMO it's rarely worth it.
Also in your specific case, this is a dangerous reduce function. You are building a wide list to see all the docs that have a tag. CouchDB likes tall lists, not fat lists. If you want to see all the docs that have a tag, you could map them.
for(var a = 0; a < doc.tags.length; a++) {
emit(doc.tags[a], doc._id);
}
Now you can query /db/_design/app/_view/docs_by_tag?key="3d" and you should get
{"total_rows":287,"offset":30,"rows":[
{"id":"project1","key":"3d","value":"project1"}
{"id":"project3","key":"3d","value":"project3"}
{"id":"project8","key":"3d","value":"project8"}
{"id":"project10","key":"3d","value":"project10"}
]}

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