/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.ode.extension.e4x;
import javax.xml.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.bpel.common.FaultException;
import org.apache.ode.bpel.runtime.extension.AbstractSyncExtensionOperation;
import org.apache.ode.bpel.runtime.extension.ExtensionContext;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextFactory;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.WrappedException;
import org.mozilla.javascript.xml.XMLLib;
import org.mozilla.javascript.xml.XMLLib.Factory;
import org.w3c.dom.Element;
/**
* Implementation of a Javascript extension assign operation.
*
* @author Tammo van Lessen (University of Stuttgart)
*/
public class JSExtensionOperation extends AbstractSyncExtensionOperation {
private static final Log __logger = LogFactory.getLog(JSExtensionOperation.class);
public void runSync(ExtensionContext context, Element element) throws FaultException {
CustomContextFactory.init();
Context ctx = ContextFactory.getGlobal().enterContext();
ctx.setOptimizationLevel(-1);
ctx.setGeneratingDebug(false);
ctx.setGeneratingSource(false);
ctx.setDebugger(null, null);
try {
Scriptable scope = new TopLevelFunctions(context, ctx, context.getDUDir());
String source = element.getTextContent();
VariableDelegator delegator = new VariableDelegator(scope, context, ctx);
ctx.evaluateString(delegator, source, context.getActivityName(), 1, null);
delegator.writeVariables();
} catch (WrappedException e) {
__logger.warn("Error during JS execution.", e);
if (e.getWrappedException() instanceof FaultException) {
throw (FaultException)e.getWrappedException();
}
throw new FaultException(new QName("ExtensionEvaluationFault", JSExtensionBundle.NS), e.getMessage());
} catch (FaultException e) {
__logger.warn("Fault during JS execution.", e);
throw e;
} catch (Exception e) {
__logger.warn("Error during JS execution.", e);
throw new FaultException(new QName("ExtensionEvaluationFault", JSExtensionBundle.NS), e.getMessage());
} finally {
Context.exit();
}
}
private static class CustomContextFactory extends ContextFactory {
//Enforce usage of plain DOM
protected Factory getE4xImplementationFactory() {
return XMLLib.Factory.create("org.mozilla.javascript.xmlimpl.XMLLibImpl");
}
static void init() {
if (!ContextFactory.hasExplicitGlobal()) {
ContextFactory.initGlobal(new CustomContextFactory());
}
}
}
}