/*
* $Id: ScriptConfigurationBuilder.java 19191 2010-08-25 21:05:23Z tcarlson $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.module.scripting.builders;
import org.mule.api.MuleContext;
import org.mule.api.MuleException;
import org.mule.config.ConfigResource;
import org.mule.config.builders.AbstractResourceConfigurationBuilder;
import org.mule.config.builders.i18n.BuildersMessages;
import org.mule.module.scripting.component.Scriptable;
import javax.script.Bindings;
/** Configures Mule from one or more script files. */
public class ScriptConfigurationBuilder extends AbstractResourceConfigurationBuilder
{
public static final String SCRIPT_ENGINE_NAME_PROPERTY = "org.mule.script.engine";
private Scriptable scriptComponent;
private String scriptEngineName;
protected MuleContext muleContext = null;
public ScriptConfigurationBuilder(String configResource) throws MuleException
{
this(System.getProperty(SCRIPT_ENGINE_NAME_PROPERTY), configResource);
}
public ScriptConfigurationBuilder(String[] configResources) throws MuleException
{
this(System.getProperty(SCRIPT_ENGINE_NAME_PROPERTY), configResources);
}
public ScriptConfigurationBuilder(String scriptEngineName, String configResource) throws MuleException
{
super(configResource);
if (scriptEngineName == null)
{
// we can guess engine by file extension
logger.warn(BuildersMessages.systemPropertyNotSet(SCRIPT_ENGINE_NAME_PROPERTY).getMessage());
}
this.scriptEngineName = scriptEngineName;
}
public ScriptConfigurationBuilder(String scriptEngineName, String[] configResources) throws MuleException
{
super(configResources);
if (scriptEngineName == null)
{
// we can guess engine by file extension
logger.warn(BuildersMessages.systemPropertyNotSet(SCRIPT_ENGINE_NAME_PROPERTY).getMessage());
}
this.scriptEngineName = scriptEngineName;
}
protected void doConfigure(MuleContext muleContext) throws Exception
{
this.muleContext = muleContext;
scriptComponent = new Scriptable(muleContext);
scriptComponent.setScriptEngineName(scriptEngineName);
for (int i = 0; i < configResources.length; i++)
{
ConfigResource configResource = configResources[i];
scriptComponent.setScriptFile(configResource.getResourceName());
scriptComponent.initialise();
// Set up initial script variables.
Bindings bindings = scriptComponent.getScriptEngine().createBindings();
scriptComponent.populateDefaultBindings(bindings);
scriptComponent.runScript(bindings);
}
}
protected void populateBindings(Bindings bindings)
{
bindings.put("muleContext", muleContext);
}
}