I'm struggling to find examples of findAll with groovy. I've got a very
simple code snippet that gets the property of a node and outputs it's
value. Except I'm only getting the last value when I'm looping through
a series of properties. Is there something I'm doing wrong here, this
seems really simple.
JcrUtils.getChildNodes("footer").findAll{
selectFooterLabel = it.hasProperty("footerLabel") ? it.getProperty("footerLabel").getString() : ""
}
In my jsp I'm just printing the property:
<%=selectFooterLabel%>
Thanks for the help!
findAll returns a List containing all the items in the original list for which the closure returns a Groovy-true value (boolean true, non-empty string/map/collection, non-null anything else). It looks like you probably wanted collect
def footerLabels = JcrUtils.getChildNodes("footer").collect{
it.hasProperty("footerLabel") ? it.getProperty("footerLabel").getString() : ""
}
which will give you a List of the values returned by the closure. If you then want only the subset of those that are not empty you can use findAll() with no closure parameter, which gives you the subset of values from the list that are themselves Groovy-true
def footerLabels = JcrUtils.getChildNodes("footer").collect{
it.hasProperty("footerLabel") ? it.getProperty("footerLabel").getString() : ""
}.findAll()
Related
value is an array with objects that have a property called skuPartNumber (string). How do I make a condition that is true when there are any objects where the skuPartNumber is equal to "X" in the array.
For your requirement, you can use contains function to implement it easily. As your screenshot shows, but need to make some changes.
First, you need to know the expression of value. It seems the value comes from "Parse JSON" in your logic app. So the expression of value should be like body('Parse_JSON')?['value']. Then use a string() function to convert it to string, then judge if it contains "skuPartNumber":"x".
The expression is string(body('Parse_JSON')?['value']).
I think the solution above is easy enough, but if you don't want to think of it as a string to judge if it contains "skuPartNumber":"x". You can also loop the value array, get each item and judge if the field skuPartNumber equals to x. Do it like below screenshot:
After the "For each" loop, use a "If" condition to judge if the variable result equals true or false.
I have this list:
service_name_status=[a-service=INSTALL, b-service=UPGRADE, C-service=UPGRADE, D-service=INSTALL]
And I need to iterate through this list so the first element will be the value of a parameter called "SERVICE_NAME" and the second element will be the value of a parameter called "HELM_COMMAND",
after asserting those values to the parameters I will run my command that uses those parameters and then continue the next items on the list which should replace the values of the parameters with items 3 and 4 and so on.
So what I am looking for is something like that:
def service_name_status=[a-service=INSTALL, b-service=UPGRADE, C-service=UPGRADE, D-service=INSTALL]
def SERVICE_NAME
def HELM_COMMAND
for(x in service_name_status){
SERVICE_NAME=x(0,2,4,6,8...)
HELM_COMMAND=x(1,3,5,7,9...)
println SERVICE_NAME=$SERVICE_NAME
println HELM_COMMAND=$HELM_COMMAND
}
the output should be:
SERVICE_NAME=a-service
HELM_COMMAND=INSTALL
SERVICE_NAME=b-service
HELM_COMMAND=UPGRADE
SERVICE_NAME=c-service
HELM_COMMAND=UPGRADE
SERVICE_NAME=d-service
HELM_COMMAND=INSTALL
and so on...
I couldn't find anything that takes any other element in groovy, any help will be appreciated.
The collection you want is a Map, not a List.
Take note of the quotes in the map, the values are strings so you need the quotes or it won't work. You may have to change that at the source where your data comes from.
I kept your all caps variable names so you will feel at home, but they are not the convention.
Note the list iteration with .each(key, value)
This will work:
Map service_name_status = ['a-service':'INSTALL', 'b-service':'UPGRADE', 'C-service':'UPGRADE', 'D-service':'INSTALL']
service_name_status.each {SERVICE_NAME, HELM_COMMAND ->
println "SERVICE_NAME=${SERVICE_NAME}"
println "HELM_COMMAND=${HELM_COMMAND}"
}
EDIT:
The following can be used to convert that to a map. Be careful, the replaceAll part is fragile and depends on the data to always look the same.
//assuming you can have it in a string like this
String st = "[a-service=INSTALL, b-service=UPGRADE, C-service=UPGRADE, D-service=INSTALL]"
//this part is dependent on format
String mpStr = st.replaceAll(/\[/, "['")
.replaceAll(/=/, "':'")
.replaceAll(/]/, "']")
.replaceAll(/, /, "', '")
println mpStr
//convert the properly formatted string to a map
Map mp = evaluate(mpStr)
assert mp instanceof java.util.LinkedHashMap
I'm facing an issue with my groovy script which I cannot figure out why it is happening.
Basically I'm trying to check if my ArrayList:
list = [image-ab, image-cd]
contains the following string
string = 'cd'
If I use the 1st condition, it returns "true":
if (list[1].contains(string))
If I use the 2nd condition, it returns "false":
if (list.contains(string))
Why is this happening and how must I adapt 2nd condition to work?
In the first case, you access the second element of the list list[1], and you call String.contains(str) method on the returned string. It returns true because indeed image-cd contains cd. If you do the same with list[0], you would get false because the string image-ab does not contain cd.
In the second case, you call contains() method on a list, not an element of the list. This method returns true if the list contains the exact cd string. And you see false because there is no cd element in the list.
What you may want to do is to use list.any() method that allows you to check if any element of the list matches given predicate. For instance,
list.any { el -> el.contains("cd") }
will return true if at least one element from that list contains cd.
The alternative for any method is every, which expects that every element of the list matches given predicate. For instance,
list.every { el -> el.contains("cd") }
would return false in your case, because image-ab does not contain cd in the string.
I want to return the index of my DataFrame as a string. I am using this commandp_h = peak_hour_df.index.astype(str).str.zfill(4) It is not working, I am getting this result: Index(['1645'], dtype='object', name I need it to return the string '1645' How do I accomplish this?
In short:
do p_h = list(peak_hour_df.index.astype(str).str.zfill(4)). This will return a list and then you can index it.
In more detail:
When you do peak_hour_df.index.astype(str), as you see, the dtype is already an object (string), so that job is done. Note this is the type of the contents; not of the object itself. Also I am removing .str.zfill(4) as this is additional and does not change the nature of the problem or the retuning type.
Then the type of the whole objet you are returning is pandas.core.indexes.base.Index. You can check this like so: type(peak_hour_df.index.astype(str)). If you want to return a single value from it in type str (e.g. the first value), then you can either index the pandas object directly like so:
peak_hour_df.index.astype(str)[0]
or (as I show above) you can covert to list and then index that list (for some reason, most people find it more intuitive):
peak_hour_df.index.astype(str).to_list()[0]
list(peak_hour_df.index.astype(str))[0]
I'm fairly new to groovy, looking at some existing code, and I see this:
def timestamp = event.timestamp[]
I don't understand what the empty square brackets are doing on this line. Note that the timestamp being def'd here should receive a long value.
In this code, event is defined somewhere else in our huge code base, so I'm not sure what it is. I thought it was a map, but when I wrote some separate test code using this notation on a map, the square brackets result in an empty value being assigned to timestamp. In the code above, however, the brackets are necessary to get correct (non-null) values.
Some quick Googling didn't help much (hard to search on "[]").
EDIT: Turns out event and event.timestamp are both zero.core.groovysupport.GCAccessor objects, and as the answer below says, the [] must be calling getAt() on these objects and returning a value (in this case, a long).
The square brackets will invoke the underlying getAt(Object) method of that object, so that line is probably invoking that one.
I made a small script:
class A {
def getAt(p) {
println "getAt: $p"
p
}
}
def a = new A()
b = a[]
println b.getClass()
And it returned the value passed as a parameter. In this case, an ArrayList. Maybe that timestamp object has some metaprogramming on it. What does def timestamp contains after running the code?
Also check your groovy version.
Empty list, found this. Somewhat related/possibly helpful question here.
Not at a computer, but that looks like it's calling the method event.timestamp and passing an empty list as a parameter.
The same as:
def timestamp = event.timestamp( [] )