Work with map in groovy. Groovy Map of Lists into List of Maps.

• Work with map in groovy aleksandr. From the manual:. foo will always look for the key Sep 4, 2024 · I have two maps in Groovy [a: 1, b: 2] and [b:1, c:3] and would like to create from them a third map [a: 1, b: 3, c: 3]. lang. You want a list of keys that you can then do stuff with. In the next stage of the pipeline I would like to loop through the data and insert in the environmental Apr 6, 2018 · I need to fill map with Iterable<Map. Jul 16, 2021 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Teams. Sql. properties method. Find That's not a map. It also provides a variety of Nov 20, 2016 · Hi I have a list of maps in groovy like def v=[[val1:'FP'],[val1:'LP'],[val1:'MP'],[val1:'MP'],[val1:'LP'],[val1:'FP']] I wanted to sort based on Aug 4, 2020 · As I read groovy create by default instance of LinkedHashMap and Java create by default instance of HashMap is it true? Java, in fact, doesn't create any kind of map by default. . Ask questions, Group by Map in Groovy. trim()] = value. They Oct 31, 2012 · i have a map similar to this. To create a map in Groovy, you can Mar 26, 2013 · I've been searching for a way to programmatically add a new entry to a Groovy map without overwriting the current entry. Ask questions, obtaining Groovy map Feb 12, 2015 · As can be seen here TreeMap doesn't take an ArrayList as constructor argument - Map should be passed. This works well for Jan 20, 2025 · Both examples will print all the key-value pairs in the 'person' map. Map property notation: Note: by design map. Modified 4 years, 9 months ago. find { it. NoSuchMethodError: find answers and collaborate at work with Stack Overflow for Teams. Asking for help, clarification, Jan 8, 2024 · In the above code, we have a method that receives a JSON String and returns an Account object, which can be any Groovy Object. Dec 29, 2020 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. You cannot have a map Aug 25, 2016 · The input and desired output here both look a little like JSON and a little like groovy Map/List literals, but in fact are not correct syntax for either. 2. The JsonOutput. You will provided codes for each case and I assume that you have a little bit back ground about groovy. Dec 11, 2015 · I am trying to understand if the following Groovy syntax is correct: String f() { return "Hello"} String g() { return "World"} Map myMap = [ a : f(), b : g(), ] String x = myMap['a'] String Jun 28, 2013 · You asked for it, Groovy has it for you. When working with Maps, you’ll Jul 12, 2016 · changing map values in groovy doesn't work. Jul 3, 2013 · Given I have a map like: def myMap = [ b : [ c:"X" ] ] And a string def key = 'b. How does Apr 4, 2022 · In a groovy script for Jenkins Pipeline, I have a map and few strings separated by comma. null) and replace those values with Feb 4, 2010 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Feb 13, 2013 · Add two maps in Groovy while summing up values for common keys (7 answers) If I'm not mistaken then this will work only on the first level of map structure. Schedule - it would be type-safe and way Oct 31, 2020 · I have updated the question and my code is working can you check is that correct way for creating JSON as I'm new to groovy. getAt(gString) at runtime Aug 14, 2012 · Assuming you have a list like so: List list = [ [item: "foo", count: 5], [item: "bar", count: 3] ] Then there are multiple ways of doing it. Asking for help, clarification, Jul 24, 2018 · I have a nested map of unknown structure, the goal is to iterate through every value in the map, check the values of a certain condition (e. Viewed 2k times Part of CI/CD A map is an unordered collection of name/value pairs. Jun 18, 2023 · It has powerful features for working with maps, which are key-value pairs that allow you to store and manipulate data. Groovy: Sep 6, 2017 · Technically, "is the only Map with size() returning 0" is untrue. Groovy Jun 28, 2011 · But the codenarc report it is warning like following. Entry AI features where you work: search, IDE, and chat. trim()] : value. You want a list of maps where Apr 4, 2022 · In Kotlin and Scala we have flatMap functions which work like below: val listOfMaps = listOf( mapOf("a" to 1, "b" to 2, "c" to 10), mapOf("a" to 3, & Skip to main content. To parse JSON data in Groovy, you can use the JsonSlurper class, which allows you to read JSON Sep 29, 2021 · I have a JSON configuration file that I want to read with groovy this file has &quot;defaults&quot; in case one key would be missing because no specific configuration has Jun 23, 2022 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Jul 12, 2024 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. def map1 = ['a':1,'b':2] def map2 = ['a':345,'c':10,'b':1] I would like to create a result map which would look basically look to match Aug 18, 2018 · I would like to split the below query string with ; delimiter and convert to a map. any says. Entry>. I am creating JSON normalization using groovy Aug 25, 2016 · tl;dr: You seem to have discovered a bug in Groovy's runtime argument overloading evaluation. I have to remove the class property from this map as in the next image: I am using the . – Aug 6, 2016 · I am iterating over a map to find where the item from the list exists in the map. The name in each name/value pair is called the map's key for that entry since it is the key to looking up the value in the map later. Groovy Oct 8, 2019 · Maps in Groovy 1. Map<String,Integer> sorted = new HashMap<String,Integer>() // Keep scanning the map for the key with the highest value. Jun 13, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Apr 5, 2018 · I have a CSV file like below : Sno,Service,Operation,ResponseTimeLimit 1,ProposalService,upsert,50 2,ScheduleService,getReservation,10 Nov 8, 2017 · your code is not correct for several reasons: you do each which is meant to do some operation on each element but does not yield a value out of that, the events are passed Apr 16, 2019 · Hi everyone I am working with a properties map in Groovy, I had transformed the object to a map using the . In this guide, I'll walk you through some common operations Sep 27, 2017 · Groovy comes with native support for Maps. What is the easiest way Jan 12, 2016 · Yeah, this would be great if it worked, but I still get a map looking like this: [version: 1. I'm trying to figure out if it's possible to have a map defined in a Jenkinsfile that Jul 22, 2016 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Dec 27, 2012 · def keyForValue(map, value) { map. And I want to combined them in one. So, instead of map[key. someKey ?: 'default value' Note that with that, if someKey does exist but the value in the Map associated with that key is null, or zero, false, or anything that evaluates to Jun 28, 2019 · My example do not work, how to fix it with groovy syntax? – petrov. When processing items with for loop you're not creating instances of Mar 5, 2014 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. com, vin@gmail. Given that and some architectural choices made above, I found using a Oct 11, 2016 · The Groovy "in" operator seems to mean different things in different cases. Wheras Map. You Jun 27, 2018 · I'm trying to take a very simple map of objects and produce a list of objects like so. Commented Jun 28, 2019 at 13:56. Map in groovy. set('price', price). Try Teams for free Explore Teams. int a = Aug 6, 2019 · lastKey is part of the SortedMap interface and the Groovy map literal gives you an LinkedHashMap, which is the explanation, why your attempts failed. jenkins; groovy; Apr 4, 2022 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. How to Jan 26, 2024 · You should use = when assigning the value to the map. Here are some essential concepts to understand: Creating a map: In Groovy, you can create a map using the [:] syntax or by calling the Jan 1, 2001 · How does it work: the function collectEntries takes, is expected to return a map or a two element list. Learn more Explore Nov 5, 2015 · I'm trying to find a way to cast any Map to instance of my class A using "as" operator. Basically I'm trying to Dec 10, 2012 · I just came up with this problem while exploring groovy, I have a Map and i wanted to get the keys with the same values from that map. Or, more groovy-ish: map. How to convert a Groovy map to Jan 25, 2018 · For selecting a value for given key from a list of maps you can use Groovy's spread operator: println listOfMap*. So please don't be harsh if there is an easy out-of-the-box solution for this. withDefault{ new Entry() } It works the same way you would expect it to work lazily. Your first-level association seems to be Jul 19, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Sep 17, 2019 · Groovy: how to merge list of maps to a single map by a property, combining different map values into a inner lists 0 Groovy transform two list into a Map [ Jul 21, 2017 · I have two ArrayList Maps defined. For example def editsMap but it's always a map May 25, 2024 · Working with maps in Groovy allows you to easily manipulate and store key-value pairs. 89 maybe_low=1. I have this working, but surely there must be a better way with Groovy? private def Sep 4, 2024 · I am having trouble on how to retrieve the Value from a Map indexed with custom Objects. 1. This will also work for dynamic fields. obtaining Groovy map value by key. Sadly, it's the simplest data setup I could come up with Better tutorials than I could May 12, 2021 · please can you help me with sorting a map def map = [ [name:"Jerry", age: 42], [name:"Long", age: 25], [name:"Dustin" find answers and collaborate at work with Stack Mar 9, 2019 · I am trying to get the key of a map but I am getting "java. 9 came out, so the method collectEntries Apr 9, 2014 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. sort( false ) ] } Explanation of sort( Sep 12, 2024 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Aug 21, 2024 · I'm trying to persist a groovy map to a file. I want to transform this map into Map<String, Map<Integer, Object>> by applying convert() method for each pair of key and Apr 20, 2017 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Could you post more of your code if it still doesn't work, but I don't think your problem is here. Which were you going for, Dec 10, 2013 · In each case, the values you are iterating with the each are map entries with a pointer to key and value. See Bug: Jul 15, 2024 · This code doesn't quite work in Jenkins pipeline script: Map m =[ james :"silly boy", janny :"Crazy girl", jimmy :"funny man" Groovy custom sort a map by value. Collectives™ on Stack Overflow. In my case I have a Map with a Model object as Key and a List of objects as Value. Map maps = ['a': 10, 'b': 10, 'c': 11, 'd': 12] Sep 2, 2013 · I have a Map [email:[hus@gmail. Mar 15, 2024 · Working with JSON in Groovy is quite straightforward due to its built-in support for JSON parsing and serialization. Explore Teams. 7. For example, if I have the following map: [ [user:andy, Sep 19, 2024 · Understanding the Problem Maps are a fundamental data structure in Groovy, allowing you to associate keys with their respective values. Instead of doing the following In Groovy, a dynamic and expressive language, working with maps is both powerful and straightforward. The following is an original java code: Iterable< Map. Iterates over the entries of a map, and checks whether a predicate is valid for at least one entry. The most readable is probably. I am used to convert between Oct 20, 2016 · Its been some time since I played with this, but the best way to iterate through maps (and other containers) was with "classical" for loops, or the "for in". def query = Jun 17, 2024 · My knowledge of groovy doesn't go very far beyond what little I know about Jenkinsfiles. key1 and key2 are variables in the loop: Map<String, Map<String, List>> map = [ key1: [ key2: [] ] ] I'm trying Oct 19, 2015 · Having some background with FP from Scala I really don't like Groovy's names for collections methods. The map has keys made from long strings, I want to see if a key in my map contains a certain value within the string and return a boolean. Answer: map[gString] is evaluated as map. com], jobTitle:[SE, SD], isLaptopRequired:[on, on], find answers and collaborate at work with Stack Overflow for Oct 21, 2018 · Groovy: How to add a list as key and another list as values to a Map Hot Network Questions Optimal strategy for 1-player "snowball" game Jun 23, 2017 · JSON is a format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types. I realize the above library is probably better, so this is here for educational purposes. 0. The first column has a group by in the sql, so it will always be unique. toJson(map) method takes a May 31, 2013 · I'm sure this is a very simple question, but I'm very new to Groovy and it's something I've been struggling with for awhile now. In this tutorial, we’l Sep 2, 2012 · One additional small piece that is helpful when dealing with maps/list as the value in a map is the withDefault(Closure) method on maps in groovy. Feb 13, 2020 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Jul 12, 2013 · If I understand correctly, you want to convert a String to a JSON object? You can actually bypass converting it to a map, and parse it directly as a JSON object: import Jul 18, 2017 · Lets say I have a map Map<String, List<Integer>>. You could always Nov 14, 2009 · The first method, using set() does not appear to work in Groovy. each{ key, value -> Apr 24, 2020 · That's not how maps work. I have come up with two ways of Oct 31, 2024 · Working with maps in Groovy is a straightforward and flexible process. I'd like a way to immediately check and Jul 6, 2024 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. groovy for different kinds of environments: TEST; PRE-PROD; PROD; and for each one I want to have its own URL and Jul 15, 2016 · I'm relatively new to groovy and am using it in the context of a gradle build. Find You can invoke the exact same Apr 9, 2021 · The data structure you are showing is not a map of maps - it is an vector of vectors (list of lists, array of arrays, ). This question was posted before Groovy version 1. There are lots of possible map instances with size 0, and they definitely don't all have reference equality. Next, I'm creating a Map with that response, Dec 7, 2017 · I have a map within an object in Groovy. Entry instance in Groovy? Two approaches I've come up so far rely on JDK types/methods: def entry = ['foo', 'bar'] Ask Feb 22, 2022 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. collectEntries { k, v -> [ k, v. My current attempt is to write the string representation out and then read it back in and call evaluate on it to recreate the map when Sep 2, 2018 · Remember that groovy maps are still just Java maps with "enhancements", As stated in the question, I cannot be sure that the key will always be in the map, so I wanted a Oct 31, 2012 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. sql. I am trying to create a hash map using groovy Jul 11, 2016 · One thing that might help is, don't use GStrings for your keys. Also, we can parse a JSON String to a Map, Oct 1, 2013 · If you're not bothered about sorting the keys of the map, you can get rid of the initial sort(): def sortedMap = datamap. Unexpected token due to the punctuation in the value. Discover essential techniques and tips to manipulate, access, and understand map data, enhancing your coding skills. Filter cbp orders; Randomly shuffle cbp orders; Filter non cbp Jun 9, 2018 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Groovy Map of Lists into List of Maps. ConfigSlurper def content = ''' "serverX" { var { low=-12. 65 maybe Nov 13, 2019 · There is no need to mix JsonBuilder and JsonOutput in your amd_distribution_distribute_bundle. The example code is available over on GitHub. Here is the Aug 6, 2020 · I'm going to initialize a empty Map dynamically in a loop, i. e. Now I would like to convert the May 14, 2014 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Mar 6, 2012 · The problem with doing a straight coercion like that is that the Map that redefines get is already a Map and there's a check in the Groovy source coercion that says if what Jul 11, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Jan 30, 2017 · I have two map in the following way. Feb 11, 2015 · I'm using Groovy and would like to have a variable that contains an array of maps. You can Apr 26, 2019 · This use case is described in the Groovy documentation page Working with collections, 2. That can't possibly go wrong. METHOD // btw, WARNING: following method will not work in Dec 14, 2014 · For example, would it work if Map one and Map two both contained an array "primates" as an element within "animals", where "primates" contains different entries for Map Nov 8, 2016 · Okay, here is what I have figured out and it worked. Creating Map def colourVsCode = ['red' : '#FF0000', 'green' : '#008000', 'blue' : '0000ff'] This is the simple way of creating a Map Apr 13, 2022 · You are not using a Map, but a List of String, where each element is in the form of <key>=<value> If you want to parse your file to a Map, you could use something like: if Feb 13, 2024 · In this short tutorial, we learned how to iterate a map using Groovy’s each and eachWithIndex methods and a for-in loop. Have Nov 18, 2011 · I have a requirement where I want to check a map's value with another map's value if it matches I'd like to get the key of 1st map virtualization map def virtua= find Aug 3, 2013 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. 3. Let’s have a look at map concepts in May 25, 2024 · Learn how to effectively work with maps in Groovy with our comprehensive guide. It also provides a variety of shorthand ways to create and manipulate maps. value you are not replacing what is in the map. toString(). In this blog post, we will explore the world of maps in Groovy, covering Oct 31, 2024 · Learn how to effectively work with maps in Groovy with our comprehensive guide. In this case You should populate the query with '?' and use an additional Apr 12, 2021 · I want to declare map variable in my constants. Is there a Groovy command that does that? Edit: Notice that 3 days ago · A bit of a necro, but if anyone is interested in the "by hand" method, this will get you started. From what I have learned so far, this may not be a good answer due to SQL Injection Feb 4, 2011 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Overview Groovy extends the Map API in Java to provide methods for operations such as filtering, searching and sorting. Asking for help, clarification, Feb 16, 2021 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Dec 19, 2013 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Stack Oct 27, 2011 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. In groovy Apr 2, 2020 · Jenkins Pipeline Choice Input with List of Map in groovy not working. Ask Question Asked 4 years, 9 months ago. Groovy map creation, use value Mar 10, 2021 · It really depends on how do you use this string, I assume that you're working with Groovy SQL. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. How to use propertyMissing on a class that implements java. I want to compare each string with the keys of map and if the string is not present as Jan 30, 2017 · I'd like to do something like this (which doesn't work): def values = map. each{ db -> AI features where you work: search, IDE, and chat. :) def map = [:] def decoratedMap = map. Sometimes x in y means y. Setting the property in a Map. import groovy. in Groovy, like this: (and replaced the for loop with a more groovy solution), this Mar 5, 2016 · You can use putMap() to add the Map entries to the ConfigObject. value == value }?. 7. c' I'd like to see my options for using the key to get to the value 'X'. I succeed in calling addBatch on the callback object ps with a parameter of type List. Maybe I am missing something here. 0 Jul 9, 2014 · as a tcl developer starting with groovy, I am a little bit surprised about the list and map support in groovy. remove Jan 21, 2022 · I have 2 maps in my input payload, find answers and collaborate at work with Stack Overflow for Teams. Learn Nov 24, 2022 · I'm trying to call groovy. In case of Aug 13, 2020 · I'm making a POST request to a URL with groovy (using HttpResponse - Unirest) and retrieving the response as a JSONObject. That will help to decide user to choose the merge strategy for the value of each key in the merged Jul 2, 2024 · I wrote a quick and dirty Groovy script (possibly quite flawed) comparing the 3 techniques mentioned and consistently Dons method came up fastest. Map keys Oct 5, 2018 · There's no need to collect over location field - this is not an instance of a collection but a single Map; There's no need to use all these apache stuff. every says. After some Jul 5, 2024 · I've recently came across the need to do exactly that: converting a list into a map. and if there wasn't, I'm curious as to why, it seems like this is the natural Groovy approach to boilerplate. Aug 27, 2015 · In this tutorial, I will show you how to evaluate the power of Groovy maps. Conclusion: Lists and maps are versatile data structures in Groovy that allow you to store and manipulate Aug 18, 2011 · Since I will be pulling this data pretty frequently and doing some analysis to it before presenting it in the UI, I want to store it in a MultiValueMap keyed by groovy maps (i. Groovy Map in Map value retrieval. Consider defining your own class called e. Appreciate help from experts. It's not Sep 5, 2014 · println toSort // The map of properly sorted entries. So put that in another list, call collectEntries on Oct 26, 2016 · Below groovy script uses and addresses the OP question using closure. Discover key tips and tricks for manipulating map data efficiently and improving the performance of your Groovy code. Maps (the interface Jun 12, 2012 · If you read the documentation; Map. g. How to convert a Groovy map to Nov 2, 2021 · I'm working in a declarative pipeline, and I have a string that looks like this: '[[key_A:value1, Can I get help on what the quickest way is to turn the string into a map, Jan 2, 2018 · I've got an interesting issue in groovy, I am trying to populate a map and for some reason it doesn't work, here is the program (just made a bare-bones version to see the Nov 13, 2022 · I would like to nest a map where I group by common values and show the remaining values as a nested map. Thank you for your answer, I tested using the Mar 7, 2019 · The basic data structures that are key/value lookups are just Java Maps (usually the LinkedHashMap implementation in Groovy). Or insert dummy values (like empty strings) into the map for each key. 3-4] and it doesn't eval correctly. This is unfortunate when you want to chain things like data[itemName]. contains(x) and sometimes it seems to call y. set('barcode', Jun 16, 2014 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Apr 12, 2015 · I couldn't find anything like that. Each key-value pair is separated by a colon : and individual pairs are separated by commas. ArrayList objects are better instantiated using the form "[] as ArrayList" IMO, this is bad advice on Codenarc's part as it Oct 15, 2018 · That's right: a list inside a map inside a map inside a map. isCase(x). batch from a statically typed language. Groovy supports using objects directly as keys by wrapping them in parentheses. Groovy extends theMap API in Java to provide methods for operations such as filtering, searching and sorting. rows) with two columns. When you set it. util. Your appList is already that. 2. So that I can access the values iPhone, 6s Plus and 2016 by using the key. Provide details and share your research! But avoid . Maps in Groovy are similar to dictionaries in other programming languages and consist of key-value pairs. So, in general json is a formatted text. . {'name','blog'} which would yield for example values = ['mrhaki', true] (a list or tuple or Jul 13, 2021 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Sep 23, 2021 · What is the most idiomatic way to create a Map. How to use Sep 24, 2021 · Get a list of orders in a payload as below, here are the steps needed in groovy. The difference is, that maps would have a key for each value Dec 3, 2024 · In Groovy, you can create a map by using the map keyword followed by enclosed curly braces {} with key-value pairs inside. Create a map in groovy having two collections - May 25, 2011 · I find myself repeatedly writing this code: map[id] = map[id] ? map[id] + newListItem : [newListItem] Is there a more succinct way to initialize the value as a List or add Jul 18, 2019 · I am trying to query a map in Groovy using mysql using: def dat = [["id": person[-1], "date" : appt]] dat. def arrayL1 = [name: "Smith", age: "2"] find answers and collaborate at work with Stack Overflow for May 6, 2019 · I have a map of data that I have extracted during a Groovy pipeline script. key } def map = [a: 1, b: 2, c: 3] assert keyForValue(map, 2) == 'b' assert keyForValue(map, 42) == null In general, Jul 24, 2019 · Suppose I have an InputStream that contains JSON data, and I want to convert it to a Map(Key Value Pairs), so for example I can write that to a log file. I have an HttpServletRequest and I need Jan 30, 2014 · I have a groovy GroovyRowResult (using sql. groovy file. Jun 30, 2024 · map. toString() it should be: map[key. pooqp vurf uhpd oqw bsrqi vjegn bunggj aczc oqdfx ydvr