Package io.kestra.plugin.graalvm.python

Class Eval

java.lang.Object
io.kestra.core.models.tasks.Task
io.kestra.plugin.graalvm.AbstractEval
io.kestra.plugin.graalvm.python.Eval
All Implemented Interfaces:
io.kestra.core.models.Plugin, io.kestra.core.models.PluginVersioning, io.kestra.core.models.tasks.RunnableTask<AbstractEval.Output>, io.kestra.core.models.tasks.TaskInterface, io.kestra.core.models.WorkerJobLifecycle
@Plugin(examples={@Example(full=true,title="Parse a downloaded JSON and update one of its fields.",code="id: parse_json_data\nnamespace: company.team\n\ntasks:\n - id: download\n type: io.kestra.plugin.core.http.Download\n uri: http://xkcd.com/info.0.json\n\n - id: graal\n type: io.kestra.plugin.graalvm.python.Eval\n outputs:\n - data\n script: |\n data = {{ read(outputs.download.uri )}}\n data[\"next_month\"] = int(data[\"month\"]) + 1\n"),@Example(full=true,title="Execute a Python script using the GraalVM scripting engine.",code="id: evalPython\nnamespace: company.team\n\ntasks:\n - id: evalPython\n type: io.kestra.plugin.graalvm.python.Eval\n outputs:\n - out\n - map\n script: |\n import java\n import java.io.File as File\n import java.io.FileOutputStream as FileOutputStream\n # types other than one coming from the Java SDK must be defined this way\n Counter = java.type(\"io.kestra.core.models.executions.metrics.Counter\")\n logger.info(\'Task started\')\n runContext.metric(Counter.of(\'total\', 666, \'name\', \'bla\'))\n map = {\'test\': \'here\'}\n tempFile = runContext.workingDir().createTempFile().toFile()\n output = FileOutputStream(tempFile)\n output.write(\'Hello World\'.encode(\'utf-8\'))\n out = runContext.storage().putFile(tempFile)\n {\"map\": map, \"out\": out}"),@Example(full=true,title="Define a Python module, then execute a script that imports this module using the GraalVM scripting engine.",code="id: evalPython\nnamespace: company.team\n\ntasks:\n - id: evalPython\n type: io.kestra.plugin.graalvm.python.Eval\n modules:\n hello.py: |\n def hello(name):\n return(\"Hello \" + name)\n script: |\n import hello\n logger.info(hello.hello(\"Kestra\"))")},metrics=@Metric(name="records",type="counter",unit="count",description="Tracks a user defined numeric value emitted from the Python script, such as the number of processed records or computed results.")) public class Eval extends AbstractEval

  • Nested Class Summary

    Nested classes/interfaces inherited from class io.kestra.plugin.graalvm.AbstractEval

    AbstractEval.Output

    Nested classes/interfaces inherited from class io.kestra.core.models.tasks.Task

    io.kestra.core.models.tasks.Task.TaskBuilder<C extends io.kestra.core.models.tasks.Task,B extends io.kestra.core.models.tasks.Task.TaskBuilder<C,B>>

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected @NotNull io.kestra.core.models.property.Property<String>
    script
     

    Fields inherited from class io.kestra.plugin.graalvm.AbstractEval

    outputs

    Fields inherited from class io.kestra.core.models.tasks.Task

    disabled, id, retry, timeout, type, version

    Fields inherited from interface io.kestra.core.models.PluginVersioning

    DESCRIPTION, TITLE

  • Constructor Summary

    Constructors
    Constructor
    Description
    Eval()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected org.graalvm.polyglot.Context
    buildContext(io.kestra.core.runners.RunContext runContext, OutputStream out, OutputStream err)
     
    protected org.graalvm.polyglot.Context.Builder
    contextBuilder(io.kestra.core.runners.RunContext runContext)
     
    protected org.graalvm.polyglot.Source
    generateSource(String languageId, io.kestra.core.runners.RunContext runContext)
     
    protected org.graalvm.polyglot.Value
    getBindings(org.graalvm.polyglot.Context context, String languageId)
     
    io.kestra.core.models.property.Property<String>
    getScript()
     
    AbstractEval.Output
    run(io.kestra.core.runners.RunContext runContext)
     

    Methods inherited from class io.kestra.plugin.graalvm.AbstractEval

    run

    Methods inherited from class io.kestra.core.models.tasks.Task

    findById, findById, getAssets, getDescription, getDisabled, getId, getLogLevel, getRetry, getRunIf, getTaskCache, getTimeout, getType, getVersion, getWorkerGroup, isAllowFailure, isAllowWarning, isFlowable, isLogToFile, isSendToWorkerTask

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface io.kestra.core.models.WorkerJobLifecycle

    kill, stop

  • Field Details

    • script

      @NotNull @PluginProperty(group="main") protected @NotNull io.kestra.core.models.property.Property<String> script

  • Constructor Details

    • Eval

      public Eval()

  • Method Details

    • getScript

      @PluginProperty(language=PYTHON) public io.kestra.core.models.property.Property<String> getScript()

    • run

      public AbstractEval.Output run(io.kestra.core.runners.RunContext runContext) throws Exception
      Throws:
      Exception

    • contextBuilder

      protected org.graalvm.polyglot.Context.Builder contextBuilder(io.kestra.core.runners.RunContext runContext)

    • buildContext

      protected org.graalvm.polyglot.Context buildContext(io.kestra.core.runners.RunContext runContext, OutputStream out, OutputStream err)

    • getBindings

      protected org.graalvm.polyglot.Value getBindings(org.graalvm.polyglot.Context context, String languageId)

    • generateSource

      protected org.graalvm.polyglot.Source generateSource(String languageId, io.kestra.core.runners.RunContext runContext) throws io.kestra.core.exceptions.IllegalVariableEvaluationException
      Throws:
      io.kestra.core.exceptions.IllegalVariableEvaluationException