/*

  * 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.core.web.parameter;

 import org.kuali.rice.core.api.component.Component;

 import org.kuali.rice.core.impl.component.ComponentBo;

 import org.kuali.rice.core.impl.parameter.ParameterBo;

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

 import org.kuali.rice.kim.api.services.KimApiServiceLocator;

 import org.kuali.rice.kim.util.KimConstants;

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

 import org.kuali.rice.kns.maintenance.rules.MaintenanceDocumentRuleBase;

 import org.kuali.rice.krad.datadictionary.DataDictionaryException;

 import org.kuali.rice.krad.service.KRADServiceLocatorWeb;

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

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

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

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 /**

  * This is a description of what this class does - kellerj don't forget to fill

  * this in.

  *

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

  */

 public class ParameterRule extends MaintenanceDocumentRuleBase {

         /**

          * This overridden method ...

          *

          * @see org.kuali.rice.krad.rules.MaintenanceDocumentRuleBase#processCustomRouteDocumentBusinessRules(org.kuali.rice.krad.document.MaintenanceDocument)

          */

         @Override

         protected boolean processCustomRouteDocumentBusinessRules(MaintenanceDocument document) {

                 boolean result = super.processCustomRouteDocumentBusinessRules( document );

                 result &= checkAllowsMaintenanceEdit( document.getDocumentHeader().getWorkflowDocument()

                                 .getInitiatorPrincipalId(), (ParameterBo)getNewBo() );

                 result &= checkComponent((ParameterBo) getNewBo());

                 return result;

         }

         protected boolean checkAllowsMaintenanceEdit(String initiatorPrincipalId, ParameterBo newBO) {

                  boolean allowsEdit = false;

                 ParameterBo parm = newBO;

                 Map<String, String> permissionDetails = new HashMap<String, String>();

                 permissionDetails.put(KimConstants.AttributeConstants.NAMESPACE_CODE, parm.getNamespaceCode());

                 permissionDetails.put(KimConstants.AttributeConstants.COMPONENT_NAME, parm.getComponentCode());

                 permissionDetails.put(KimConstants.AttributeConstants.PARAMETER_NAME, parm.getName());

                 allowsEdit = KimApiServiceLocator.getPermissionService().isAuthorizedByTemplateName(

                                                 GlobalVariables.getUserSession().getPerson().getPrincipalId(),

                                                 KRADConstants.KRAD_NAMESPACE,

                                                 KimConstants.PermissionTemplateNames.MAINTAIN_SYSTEM_PARAMETER,

                                                 permissionDetails, null);

                 if(!allowsEdit){

                         putGlobalError(RiceKeyConstants.AUTHORIZATION_ERROR_PARAMETER);

                 }

                 return allowsEdit;

         }

     public boolean checkComponent(ParameterBo param) {

         String component = param.getComponentCode();

         String namespace = param.getNamespaceCode();

         boolean result = false;

         try {

             List<Component> dataDictionaryAndSpringComponents = KRADServiceLocatorWeb

                     .getRiceApplicationConfigurationMediationService().getNonDatabaseComponents();

             for (Component pdt : dataDictionaryAndSpringComponents) {

                 if (namespace.equals(pdt.getNamespaceCode()) && component.equals(pdt.getCode())) {

                     result = true;

                     break;

                 }

             }

             if (!result) {

                 Map<String, String> primaryKeys = new HashMap<String, String>(2);

                 primaryKeys.put("namespaceCode", namespace);

                 primaryKeys.put("code", component);

                 result = ObjectUtils.isNotNull(getBoService().findByPrimaryKey(ComponentBo.class, primaryKeys));

             }

             if (!result) {

                 putFieldError("code", "error.document.parameter.detailType.invalid", component);

             }

             return result;

         }

         catch (DataDictionaryException ex) {

             throw new RuntimeException("Problem parsing data dictionary during full load required for rule validation: " + ex.getMessage(), ex);

         }

     }

 }