String comparison in groovy script not working - groovy

I am trying to compare 2 Strings in groovy script. both have same value but they are in different case while m trying compare it using equalsIgnoreCase still it is showing not equals.
Here is my code:
def st1=Austin
def ct=AUSTIN
if(st1.equalsIgnoreCase(ct)){
log.info "city equals"
}
else{
log.info "not eq"
}
it's printing "not eq".I tried toString() and toUpperCase methods.Plz help me out

Sorry for the erroneous post. I got my problem I was working with db. it gives me value with some extra spaces. So my comparison was not working. later I used
trim()
to remove it.

Related

check if the variable contains character a-z or A-Z in Groovy

I'm very new to Groovy and started learning with that.
My requirement is to validate if my input variable contains the character between a-z or A- then I have to remove this particular record.
I tried with
personIdExternal.text().contains('a-z')
I also tried with
personIdExternal.text().matches("[a-zA-Z]")
And neither is working.
Can you guys please help me out?
You can do something like this:
if(personIdExternal.text() ==~ /.*[A-Za-z].*/) {
println 'it matches'
} else {
println 'it does not match'
}

invalid input syntax for type numeric: " "

I'm getting this message in Redshift: invalid input syntax for type numeric: " " , even after trying to implement the advice found in SO.
I am trying to convert text to number.
In my inner join, I try to make sure that the text being processed is first converted to null when there is an empty string, like so:
nullif(trim(atl.original_pricev::text),'') as original_price
... I noticed from a related post on coalesce that you have to convert the value to text before you can try and nullif it.
Then in the outer join, I test to see that there's a limited set of acceptable characters and if this test is met I try to do the to_number conversion:
,case
when regexp_instr(trim(atl.original_price),'[^0-9.$,]')=0
then to_number(atl.original_price,'FM999999999D00')
else null
end as original_price2
At this point I get the above error and unfortunately I can't see the details in datagrip to get the offending value.
So my questions are:
I notice that there is an empty space in my error message:
invalid input syntax for type numeric: " " . Does this error have the exact same meaning as
invalid input syntax for type numeric:'' which is what I see in similar posts??
Of course: what am I doing wrong?
Thanks!
It's hard to know for sure without some data and the complete code to try and reproduce the example, but as some have mentioned in the comments the most likely cause is the to_number() function you are using.
In the earlier code fragment you are converting original_price to text (string) and then substituting an empty string ('') if the value is NULL. Calling the to_number() function on an empty string will give you the error described.
Without the full SQL statement it's not clear why you're putting the nullif() function around the original_price in the "inner join" or how whether the CASE statement is really in an outer join clause or one of the columns returned by the query. However you could perhaps alter the nullif() to substitute a value that can be converted to a number e.g. '0.00' instead of ''.
Sorry I couldn't share real data. I spent the weekend testing small sets to try and trap the error. I found that the error was caused by the input string having no numbers, which is permitted by my regex filter:
when regexp_instr(trim(atl.original_price),'[^0-9.$,]') .
I wrongly expected that a non numeric string like "$" would evaluate to NULL and then the to_number function would = NULL . But from experimenting it seems that it needs at least one number somewhere in the string. Otherwise it reduces the string argument to an empty string prior to running the to_number formatting and chokes.
For example select to_number(trim('$1'::text),'FM999999999999D00') will evaluate to 1 but select to_number(trim('$A'::text),'FM999999999999D00') will throw the empty string error.
My fix was to add an additional regex to my initial filter:
and regexp_instr(atl.original_price2,'[0-9]')>0 .
This ensures that at least one number will be in the string and after that the empty string error went away.
Hope my learning experience helps someone else.

String comparison: equalsIgnoreCase is failing but == is passing

I tried:
String test = "racecary";
StringBuilder stringBuilder = new StringBuilder(test);
System.out.println(stringBuilder.reverse()+" -------------");
if (stringBuilder.reverse().toString().equalsIgnoreCase(test)) {
System.out.println("Pass");
}else {
System.out.println("Fail");
}
It always prints pass, even when I mispelled racecar, but passes when I use == inplace of .equalsIgnoreCase.
Am I doing something wrong?
I have already gone through following but didnt get the answer.
JAVA .equalsIgnoreCase not working
JAVA .equalsIgnoreCase not working
StringBuilder.reverse() modifies the builder in place. The test printout is causing the string to be reversed twice, leaving it unmodified. Get rid of the printout and the code will work as expected.

Switching on String Value Yields Unexpected Results in Groovy

I am working in a groovy/grails set up and am having some trouble trying to execute a switch statement on a String value.
Basically, I am looping through the attribute names in a webservice response to see if they match pre-defined mappings that are configured on a per user basis. If they have established a mapping on that field, I pull the value out of the response and use it elsewhere.
The code looks something like this:
switch(attributeName)
{
case {attributeName} :
log.info("Currently switching on value... ${attributeName}")
case user.getFirstNameMapping():
model.user.userInfo.firstName = attributeValue
break
case user.getLastNameMapping():
model.user.userInfo.lastName = attributeValue
break
case user.getAuthenticationKeyMapping():
model.authenticationValue = attributeValue
break
case user.getEmailMapping():
model.email = attributeValue.toLowerCase()
break
}
The value being switched on (attributeName) is of type String, and the getter methods for the user instance also return type String.
Based on my research and understanding of the Groovy language, switching on an Object such as a String should end up using String.equals() to make the comparison. The result, however, is that it is matching on the user.getFirstNameMapping() case every time, and repeatedly overwriting the value in the model; therefore, the last value that comes back in the response is what ends up saved, and none of the other values are saved.
What's interesting is that if I use an if/else structure and do something like this:
if(attributeName.equals(user.getFirstNameMapping())
{
...
}
It works fine every time. I've verified through logging that it's not something silly like extra whitespace or a capitalization issue. I've also tried changing things around to run the switch by default and explicitly compare the attributeName in the case like this:
switch(true)
{
case {attributeName} :
log.info("Currently switching on value... ${attributeName}")
case {user.getFirstNameMapping().equals(attributeName)}:
model.user.userInfo.firstName = attributeValue
break
case {user.getLastNameMapping().equals(attributeName)}:
model.user.userInfo.lastName = attributeValue
break
case {user.getAuthenticationKeyMapping().equals(attributeName)}:
model.authenticationValue = attributeValue
break
case {user.getEmailMapping().equals(attributeName)}:
model.email = attributeValue.toLowerCase()
break
}
And it still fails to meet my expectations in the exact same way. So, I'm wondering why this is the behavior when the switch statement should simply be using .equals() to compare the strings, and when I explicitly compare them in an if/else using .equals(), it works as expected.
The issue is in your switch case.
Have a look here :-
case {attributeName} :
log.info("Currently switching on value... ${attributeName}")
case user.getFirstNameMapping():
model.user.userInfo.firstName = attributeValue
break
As you can see your these two cases will run every time because the switch condition is :-
switch(attributeName)
So the first one will get match and will run until it encounters break; which is at after case 2 i.e. case user.getFirstNameMapping(): so i would suggest you to print the value of {attributeName} before the swtich starts.
Hope that will help you.
Thanks
I don't know exactly what's your issue, but the case statement works just fine, even with methods. See my example
String something = "Foo"
class User {
String firstName
String lastName
}
User u = new User(firstName: 'Something', lastName:'Foo')
switch(something) {
case u.getFirstName():
println "firstName: ${u.firstName}"
break;
case u.getLastName():
println "lastName: ${u.lastName}"
break;
default:
println "nothing..."
}
This code will print lastName as expected.
​

What do empty square brackets after a variable name mean in Groovy?

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( [] )

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