| /******************************************************************************* |
| * Copyright (c) 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.model.resource; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.bpel.model.Catch; |
| import org.eclipse.bpel.model.ForEach; |
| import org.eclipse.bpel.model.OnEvent; |
| import org.eclipse.bpel.model.Process; |
| import org.eclipse.bpel.model.Scope; |
| import org.eclipse.bpel.model.Variable; |
| import org.eclipse.bpel.model.Variables; |
| import org.eclipse.emf.ecore.EObject; |
| |
| |
| /** |
| * Base implementation of VariableResolver. This resolves all variables |
| * as defined in the BPEL specifications. |
| * |
| * Supply a different variable resolver by implementing VariableResolver |
| * and executing: |
| * BPELReader.VARIABLE_RESOLVER = new MyVariableResolver(); |
| */ |
| public class BPELVariableResolver implements VariableResolver { |
| |
| /** |
| * @see org.eclipse.bpel.model.resource.VariableResolver#getVariable(org.eclipse.emf.ecore.EObject, java.lang.String) |
| */ |
| public Variable getVariable(EObject eObject, String variableName) { |
| EObject container = eObject.eContainer(); |
| while (container != null) { |
| if (container instanceof OnEvent) { |
| Variable variable = ((OnEvent)container).getVariable(); |
| if (variable != null && variable.getName().equals(variableName)) { |
| return variable; |
| } |
| } else if (container instanceof Catch) { |
| Variable variable = ((Catch)container).getFaultVariable(); |
| if (variable != null && variable.getName().equals(variableName)) { |
| return variable; |
| } |
| } else if (container instanceof ForEach) { |
| Variable variable = ((ForEach)container).getCounterName(); |
| if (variable != null && variable.getName().equals(variableName)) { |
| return variable; |
| } |
| } else { |
| Variables variables = null; |
| if (container instanceof Process) |
| variables = ((Process)container).getVariables(); |
| else if (container instanceof Scope) |
| variables = ((Scope)container).getVariables(); |
| |
| if (variables != null) { |
| |
| List<Object> list = new ArrayList<Object>(); |
| |
| // check all BPEL variables if anyone has the correct variable name |
| |
| list.addAll(variables.getChildren()); |
| list.addAll(variables.getExtensibilityElements()); |
| |
| for (Object n : list) { |
| if (n instanceof Variable) { |
| Variable variable = (Variable) n; |
| String name = variable.getName(); |
| if (name != null && name.equals(variableName)) { |
| return variable; |
| } |
| } |
| } |
| } |
| } |
| container = container.eContainer(); |
| } |
| |
| // System.out.println("Variable: " + variableName + " - not resolved"); |
| |
| return null; |
| } |
| } |