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Add more context to Exception or Error in Groovy


By : trpt
Date : October 18 2020, 06:10 AM
seems to work fine You can definitely do this in groovy by using its metaprogramming features. In particular, for your case metaclasses provides everything you need. Using them you can dynamically add/attach a contextData object to the exception you want it to carry around:
code :
    private static void throwsEnhancedException() throws IOException {
        try {
            throwsBasicException()
        } catch (IOException e) {
            e.metaClass.contextData = "My context data"
            throw e;
        }
    }
    private static void doSomethingWithContextData(Closure contextDataHandler) throws IOException {
        try {
            throwsEnhancedException();
        } catch (IOException e) {
            // RETRIEVE `contextData` FROM `e` OR NULL IF THE PROPERTY DO NOT EXIST
            def contextData = e.hasProperty('contextData')?.getProperty(e)

            // DO SOMETHING WITH `contextData`
            contextDataHandler(contextData)
        }
    }
import java.time.LocalDateTime

class ExceptionEnhancer {
    static void main(String[] args) {
        def logger = { println "${LocalDateTime.now()} - Context Data = [$it]" }
        doSomethingWithContextData logger
    }

    private static void doSomethingWithContextData(Closure contextDataHandler) throws IOException {
        try {
            throwsEnhancedException();
        } catch (IOException e) {
            // RETRIEVE `contextData` FROM `e` OR NULL IF THE PROPERTY DO NOT EXIST
            def contextData = e.hasProperty('contextData')?.getProperty(e)

            // DO SOMETHING WITH `contextData`
            contextDataHandler(contextData)
        }
    }

    private static void throwsEnhancedException() throws IOException {
        try {
            throwsBasicException()
        } catch (IOException e) {
            e.metaClass.contextData = "My context data"
            throw e;
        }
    }

    public static void throwsBasicException() throws IOException {
        throw new IOException();
    }
}


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Intellij groovy: Error:Cannot compile Groovy files: no Groovy library is defined for module 'groovyTest'


By : yungun
Date : March 29 2020, 07:55 AM
will be helpful for those in need The only thing that worked was deleting all of my Intellij/Jetbrains global config files. I went into ~/Library/Preferences and deleted anything that had Jetbrains or Intellij in its filename. I have been reusing the config files for the past two years across several versions. It caught up with me. Groovy files will compile now.

IntelliJ - Groovy start - Error: Cannot compile Groovy files: no Groovy library is defined


By : NO1B4ME
Date : March 29 2020, 07:55 AM
this will help How your .iml file looks like? I repeated all steps from your message and have successfully run GroovyDemo.groovy class without any errors.
My .iml file is:
code :
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
  <component name="NewModuleRootManager" inherit-compiler-output="true">
    <exclude-output />
    <content url="file://$MODULE_DIR$">
      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
    </content>
    <orderEntry type="inheritedJdk" />
    <orderEntry type="sourceFolder" forTests="false" />
    <orderEntry type="library" name="groovy-2.4.15" level="application" />
  </component>
</module>

Groovy - handling exception - how to get Oracle error code


By : amaslovs
Date : March 29 2020, 07:55 AM
Hope that helps
If you don't want regular expressions you can use SQLException.getErrorCode() function like:
code :
} catch (SQLException ex) {

    log.error "getMsg: " + ex.getErrorCode()
}
} catch (Exception ex) {
    println("getMsg: " + (ex.getMessage() =~ "(ORA-\\d+)")[0][0])
}

Groovy Maven Compilation fails with error: Unable to determine Groovy version. Is Groovy declared as a dependency?


By : user3297108
Date : March 29 2020, 07:55 AM
around this issue So I eventually got it working properly by deleting the entire codehaus dir in the .m2 repo. Re-downloading everything seemed to sort it out and now it all works correctly without any hacks.
This github issue is somewhat related - https://github.com/groovy/GMavenPlus/issues/84 - and the final comment led me to zapping the repo.

SQL Groovy - context.expand custom properties error ORA-01756


By : Anonymous
Date : March 29 2020, 07:55 AM
seems to work fine The ORA-01756: quoted string not properly terminated is because the last ' in your SELECT is missing.
To avoid the error and to keep the SELECT clear, I recommend to use firstRow(String sql,List params) method instead:
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