ballerina-lang | The Ballerina Programming Language | Compiler library
kandi X-RAY | ballerina-lang Summary
kandi X-RAY | ballerina-lang Summary
The Ballerina Programming Language
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Top functions reviewed by kandi - BETA
- Parses a line
- Marks the current state as an operator
- Checks if source is complete
- Feeds a character
- Runs the ballerina GUI
- Gets the description for a given topic
- Read a resource from the classpath
- Reads the content of a file into a string
- Populate the topic list
- Read the content of a file
- Creates the command handler
- Evaluates a module declaration
- Read a list of keywords
- Loads the properties file
- Completes the configuration
- Transforms a module variable declaration node
- Utility function to evaluate a string
- Reads from a URL
ballerina-lang Key Features
ballerina-lang Examples and Code Snippets
Community Discussions
Trending Discussions on ballerina-lang
QUESTION
I am trying to clean up a static function. Let me provide a template of this function here. It is a static function and is used only in two places in the code base one where the isClient
is true
and another where isClient
is false.
ANSWER
Answered 2019-Sep-05 at 07:10Then I thought that this function is used only in two places and should we have instance classes for these?
That really depends on your goal. I agree, the current code is far from ideal. And the things you outlined all make sense. So, to answer your question: yes, if you think it will be helpful to the quality of your code base, having an "instance" class that only gets used in two places is perfectly fine.
The other thing to carefully look at: maybe there is a way to get rid of that switch. You could for example use a map (key: your constants, value: some Functional interface ... that makes the corresponding validation).
QUESTION
Found some evidence here that enum was supported in Ballerina at one point, but it seems to have been removed. Is anyone aware of a recommended/supported/idiomatic way to deal with enumerated values in Ballerina?
...ANSWER
Answered 2019-Jun-11 at 18:22Yes, we had removed the enum type from the language a while ago. Now you can generically define enumerated values using constants and the union type.
QUESTION
Regarding to the answers in this issue it seems that it isn't possible to convert a string to XML in Ballerina other than in "relevant places" (http payload mentioned).
We are in need of reading message content as XML in a JMS subscription, but I get stuck with a string (after calling the getTextMessageContent()). Isn't JMS content considered a "relevant place" or am I missing something obvious?
...ANSWER
Answered 2018-Oct-27 at 17:02If you are looking for how to directly convert a string to xml, then you could use the readXml
function in StringReader
object.
Following example shows how you could use the StringReader
.
QUESTION
Is there a way to convert string
to json
in Ballerina ?
I found this PR - Add jsons:parse() method to get a JSON from a string where it says adding support to parse string
to json
, but couldn't find any example.
I tried the following:
...ANSWER
Answered 2018-Oct-11 at 06:48The correct way to convert a string
to json
in ballerina is to use the readJson
function from StringReader
. What you have tried was an old approach which is no longer supported.
Following example shows how this could be done using the StringReader
.
QUESTION
This issue raised when following the Ballerina Community Programme I tried to create calculator package and till build everthing nicely worked.
When execute ballerina build calculator command , below error pops at the terminal.
...ANSWER
Answered 2018-Jul-11 at 02:47I think this is a duplicate question Ballerina package build failed
As answered in the previous question, it might be due to the space in the project directory Ballerina Projects
. Try renaming it to Ballerina-Projects
.
QUESTION
I followed the Ballerina quick tour on https://ballerina.io/community-program/ and created the package 'Calculator' and everything worked perfectly until the package building step. After the build command is entered an error appears.
...ANSWER
Answered 2018-Jul-03 at 17:36The issue is with the spaces in your project directory: Ballerina thrid cal
. Eliminating the spaces in the directory name should resolve this issue.
e.g., Ballerina-third-cal
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