/*
* 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.bpel.runtime;
import java.net.URI;
import org.apache.ode.bpel.common.FaultException;
import org.apache.ode.bpel.explang.EvaluationContext;
import org.apache.ode.bpel.o.OElementVarType;
import org.apache.ode.bpel.o.OExpression;
import org.apache.ode.bpel.o.OLink;
import org.apache.ode.bpel.o.OMessageVarType;
import org.apache.ode.bpel.o.OMessageVarType.Part;
import org.apache.ode.bpel.o.OProcess;
import org.apache.ode.bpel.o.OScope;
import org.apache.ode.utils.DOMUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import javax.xml.namespace.QName;
/**
* Expression language evaluation context used for evaluating property aliases.
*/
public class PropertyAliasEvaluationContext implements EvaluationContext {
private Element _root;
public PropertyAliasEvaluationContext(Element msgData, OProcess.OPropertyAlias alias) {
// We need to tweak the context node based on what kind of variable (element vs non-element)
if (alias.part == null) {
// actually, this should not happen
_root = msgData;
} else {
Element part = DOMUtils.findChildByName(msgData,new QName(null, alias.part.name),false);
if (part != null && alias.part.type instanceof OElementVarType) {
_root = DOMUtils.findChildByName(part, ((OElementVarType)alias.part.type).elementType);
} else
_root = part;
}
}
public Node getRootNode() {
return _root;
}
public boolean isLinkActive(OLink olink) throws FaultException {
throw new InvalidProcessException("Link status not available in this context.");
}
public String readMessageProperty(OScope.Variable variable, OProcess.OProperty property) throws FaultException {
throw new InvalidProcessException("Message properties not available in this context.");
}
public Node readVariable(OScope.Variable variable, OMessageVarType.Part part) throws FaultException {
throw new InvalidProcessException("Message variables not available in this context.");
}
public Node evaluateQuery(Node root, OExpression expr) throws FaultException {
throw new InvalidProcessException("Query language not available in this context.");
}
public Long getProcessId() {
throw new InvalidProcessException("Process execution information not available in this context.");
}
public Node getPartData(Element message, Part part) throws FaultException {
// TODO Auto-generated method stub
return null;
}
public boolean narrowTypes() {
return true;
}
public URI getBaseResourceURI() {
return null;
}
}