Class JavaScriptExecutionStrategy

java.lang.Object

ai.nervemind.app.executor.script.JavaScriptExecutionStrategy

All Implemented Interfaces:

ScriptExecutionStrategy

@Component
public class JavaScriptExecutionStrategy
extends Object
implements ScriptExecutionStrategy

JavaScript execution strategy using GraalJS.

Executes JavaScript code in a sandboxed GraalVM context. This is the default script execution strategy and provides fast, secure execution.

Available Globals

• $input / input - Data from previous nodes
• $node / node - Current node parameters

Example

// Transform input data
const items = $input.items || [];
return {
  count: items.length,
  processed: items.map(x => x.toUpperCase())
};

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JavaScriptExecutionStrategy.ConsoleHelper	Helper class to bridge JavaScript console calls to Java logging.

Constructor Summary

Constructors

Constructor	Description
JavaScriptExecutionStrategy()	Default constructor.

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	execute(String code, Map<String,Object> input, ai.nervemind.common.domain.Node node, ExecutionService.ExecutionContext context)	Execute a script with the given input data.
String	getDisplayName()	Get a human-readable name for display.
String	getLanguageId()	Get the language identifier this strategy handles.
boolean	isAvailable()	Check if this strategy is available (dependencies installed, etc.).

Methods inherited from class Object

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

Methods inherited from interface ScriptExecutionStrategy

getAvailabilityInfo

Constructor Details

JavaScriptExecutionStrategy

public JavaScriptExecutionStrategy()

Default constructor.

Method Details

execute

public Map<String,Object> execute(String code,
 Map<String,Object> input,
 ai.nervemind.common.domain.Node node,
 ExecutionService.ExecutionContext context)
                           throws ScriptExecutionException

Description copied from interface: ScriptExecutionStrategy

Execute a script with the given input data.

Specified by:

execute in interface ScriptExecutionStrategy

Parameters:

code - the script code to execute

input - input data from previous nodes

node - the node being executed (for accessing parameters)

context - the execution context

Returns:

output data including script results merged with input

Throws:

ScriptExecutionException - if execution fails

getLanguageId

public String getLanguageId()

Description copied from interface: ScriptExecutionStrategy

Get the language identifier this strategy handles.

Specified by:

getLanguageId in interface ScriptExecutionStrategy

Returns:

the language ID (e.g., "javascript", "python")

getDisplayName

public String getDisplayName()

Description copied from interface: ScriptExecutionStrategy

Get a human-readable name for display.

Specified by:

getDisplayName in interface ScriptExecutionStrategy

Returns:

display name (e.g., "JavaScript (GraalJS)", "Python (GraalPy)")

isAvailable

public boolean isAvailable()

Description copied from interface: ScriptExecutionStrategy

Check if this strategy is available (dependencies installed, etc.).

Specified by:

isAvailable in interface ScriptExecutionStrategy

Returns:

true if the strategy can be used