Package org.springframework.integration.scripting.jsr223

Class PythonScriptExecutor

java.lang.Object

org.springframework.integration.scripting.jsr223.AbstractScriptExecutor

org.springframework.integration.scripting.jsr223.PythonScriptExecutor

All Implemented Interfaces:

ScriptExecutor

public class PythonScriptExecutor
extends AbstractScriptExecutor

A ScriptExecutor that implements special handling required for Python to emulate behavior similar to other JSR223 scripting languages.

Script evaluation using the Jython implementation results in a null return value for normal variable expressions such as x=2. As a work around, it is necessary to get the value of 'x' explicitly following the script evaluation. This class performs simple parsing on the last line of the script to obtain the variable name, if any, and return its value.

Since:

2.1

Author:

David Turanski, Gary Russell

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PythonScriptExecutor.PythonVariableParser

Field Summary

Fields inherited from class org.springframework.integration.scripting.jsr223.AbstractScriptExecutor

logger

Constructor Summary

Constructors

Constructor	Description
PythonScriptExecutor()

Method Summary

Modifier and Type	Method	Description
protected Object	postProcess(Object result, ScriptEngine scriptEngine, String script, Bindings bindings)	Subclasses may implement this to provide any special handling required

Methods inherited from class org.springframework.integration.scripting.jsr223.AbstractScriptExecutor

executeScript, getScriptEngine

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.integration.scripting.ScriptExecutor

executeScript

Constructor Details

PythonScriptExecutor

public PythonScriptExecutor()

Method Details

postProcess

protected Object postProcess(Object result,
 ScriptEngine scriptEngine,
 String script,
 Bindings bindings)

Description copied from class: AbstractScriptExecutor

Subclasses may implement this to provide any special handling required

Specified by:

postProcess in class AbstractScriptExecutor

Parameters:

result - the result.

scriptEngine - the engine.

script - the script.

bindings - the bindings.

Returns:

modified result