/*

  * Copyright 2007-2009 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.actionrequest.bo;

 import org.kuali.rice.core.util.ConcreteKeyValue;

 import org.kuali.rice.core.util.KeyValue;

 import org.kuali.rice.kew.rule.RuleBaseValues;

 import org.kuali.rice.kew.rule.RuleTemplateOption;

 import org.kuali.rice.kew.rule.bo.RuleTemplate;

 import org.kuali.rice.kew.util.KEWConstants;

 import org.kuali.rice.kns.util.KNSGlobalVariables;

 import org.kuali.rice.kns.web.struts.form.KualiForm;

 import org.kuali.rice.kns.web.struts.form.KualiMaintenanceForm;

 import org.kuali.rice.kns.document.MaintenanceDocument;

 import org.kuali.rice.krad.util.GlobalVariables;

 import java.util.ArrayList;

 import java.util.List;

 /**

  * A values finder for returning KEW Action Request codes related to Kuali maintenance forms.

  * 

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

  *

  */

 public class RuleMaintenanceActionRequestCodeValuesFinder extends ActionRequestCodeValuesFinder {

         /**

          * @see org.kuali.rice.krad.keyvalues.KeyValuesFinder#getKeyValues()

          */

         @Override

         public List<KeyValue> getKeyValues() {

                 final List<KeyValue> actionRequestCodes = new ArrayList<KeyValue>();

                 // Acquire the Kuali form, and return the super class' result if the form is not a Kuali maintenance form.

                 final KualiForm kForm = KNSGlobalVariables.getKualiForm();

                 if (!(kForm instanceof KualiMaintenanceForm)) {

                         return super.getKeyValues();

                 }

                 // Acquire the Kuali maintenance form's document and its rule template.

                 final MaintenanceDocument maintDoc = (MaintenanceDocument) ((KualiMaintenanceForm) kForm).getDocument();

                 final RuleTemplate ruleTemplate = ((RuleBaseValues) maintDoc.getNewMaintainableObject().getBusinessObject()).getRuleTemplate();

                 // Ensure that the rule template is defined.

                 if (ruleTemplate == null) {

                         throw new RuntimeException("Rule template cannot be null for document ID " + maintDoc.getDocumentNumber());

                 }

                 // get the options to check for, as well as their related KEW constants.

                 final RuleTemplateOption[] ruleOpts = {ruleTemplate.getAcknowledge(), ruleTemplate.getComplete(),

                                 ruleTemplate.getApprove(), ruleTemplate.getFyi()};

                 final String[] ruleConsts = {KEWConstants.ACTION_REQUEST_ACKNOWLEDGE_REQ, KEWConstants.ACTION_REQUEST_COMPLETE_REQ,

                                 KEWConstants.ACTION_REQUEST_APPROVE_REQ, KEWConstants.ACTION_REQUEST_FYI_REQ};

                 // Add the rule options to the list if they are not defined (true by default) or if they are explicitly set to true.

                 for (int i = 0; i < ruleOpts.length; i++) {

                         if (ruleOpts[i] == null || ruleOpts[i].getValue() == null || "true".equals(ruleOpts[i].getValue())) {

                                 actionRequestCodes.add(new ConcreteKeyValue(ruleConsts[i], KEWConstants.ACTION_REQUEST_CODES.get(ruleConsts[i])));

                         }

                 }

                 return actionRequestCodes;

         }

 }