/**

  * Copyright 2005-2011 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.apache.commons.lang.StringUtils;

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import org.kuali.rice.core.framework.parameter.ParameterService;

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

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

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

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

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

 import org.kuali.rice.kns.lookup.KualiLookupableHelperServiceImpl;

 import org.kuali.rice.krad.bo.BusinessObject;

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

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

 import java.util.Collection;

 import java.util.Collections;

 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 ParameterLookupableHelperServiceImpl extends KualiLookupableHelperServiceImpl {

     private static final long serialVersionUID = 4381873774407301041L;

     private static final Log LOG = LogFactory.getLog(ParameterLookupableHelperServiceImpl.class);

     private static final String COMPONENT_NAME = "component.name";

     private static final String DERIVED_COMPONENT_NAME = "derivedComponent.name";

     private static final String NAMESPACE_CODE = "namespaceCode";

     @Override

     protected boolean allowsMaintenanceEditAction(BusinessObject businessObject) {

         ParameterBo parm = (ParameterBo)businessObject;

         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());

         return KimApiServiceLocator.getPermissionService().isAuthorizedByTemplateName(

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

                                 KRADConstants.KRAD_NAMESPACE,

                                 KimConstants.PermissionTemplateNames.MAINTAIN_SYSTEM_PARAMETER,

                                 permissionDetails, Collections.<String, String>emptyMap());

     }

     @Override

     public List<? extends BusinessObject> getSearchResults(java.util.Map<String, String> fieldValues) {

         List<ParameterBo> parametersWithDerivedComponents = null;

         if (fieldValues.containsKey(COMPONENT_NAME) && StringUtils.isNotBlank(fieldValues.get(COMPONENT_NAME))) {

             // also search based on derived component name

             Map<String, String> derivedComponentFieldValues = new HashMap<String, String>(fieldValues);

             String componentName = derivedComponentFieldValues.remove(COMPONENT_NAME);

             derivedComponentFieldValues.put(DERIVED_COMPONENT_NAME, componentName);

             parametersWithDerivedComponents = (List<ParameterBo>)super.getSearchResultsUnbounded(derivedComponentFieldValues);

         }

         List<ParameterBo> results = (List<ParameterBo>)super.getSearchResultsUnbounded(fieldValues);

         if (parametersWithDerivedComponents != null) {

             results.addAll(parametersWithDerivedComponents);

         }

         normalizeParameterComponents(results);

         return results;

     }

         private void normalizeParameterComponents(List<ParameterBo> parameters) {

                 // attach the derived components where needed

         for (ParameterBo parameterBo : parameters) {

             if (parameterBo.getComponent() == null) {

                 parameterBo.setComponent(DerivedComponentBo.toComponentBo(parameterBo.getDerivedComponent()));

             }

         }

         }

 }