/*

  * Copyright 2005-2007 The Kuali Foundation

  * 

  * 

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  * 

  * 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.kuali.rice.kew.engine.node.var.schemes;

 import org.apache.log4j.Logger;

 import org.kuali.rice.kew.engine.RouteContext;

 import org.kuali.rice.kew.engine.node.BranchState;

 import org.kuali.rice.kew.engine.node.service.BranchService;

 import org.kuali.rice.kew.engine.node.var.Property;

 import org.kuali.rice.kew.engine.node.var.PropertyScheme;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 /**

  * A property scheme that looks the property up in the state variable map

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public final class VariableScheme implements PropertyScheme {

     private static final Logger LOG = Logger.getLogger(VariableScheme.class);

     public String getName() {

         return "variable";

     }

     public String getShortName() {

         return "var";

     }

     public Object load(Property property, RouteContext context) {

 //        try {

 //            return PropertyUtils.getProperty(doc.getVariables(), property.locator);

             LOG.debug("getting variable: " + property.locator);

             BranchService branchService = KEWServiceLocator.getBranchService();

             String value = branchService.getScopedVariableValue(context.getNodeInstance().getBranch(), BranchState.VARIABLE_PREFIX + property.locator);

             LOG.debug("variable '" + property.locator + "': " + value);

             return value;

 //        } catch (NoSuchMethodException nsme) {

 //            throw new RuntimeException("Error loading resource: " + property.locator, nsme);

 //        } catch (InvocationTargetException ite) {

 //            throw new RuntimeException("Error loading resource: " + property.locator, ite);

 //        } catch (IllegalAccessException iae) {

 //            throw new RuntimeException("Error loading resource: " + property.locator, iae);

 //        }

     }

     public String toString() {

         return "[VariableScheme]";

     }

 }