/**

  * 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.krad.uif.service.impl;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.exception.RiceRuntimeException;

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

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

 import org.kuali.rice.krad.inquiry.Inquirable;

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

 import org.kuali.rice.krad.uif.UifConstants;

 import org.kuali.rice.krad.uif.UifParameters;

 import org.kuali.rice.krad.uif.util.ViewModelUtils;

 import org.kuali.rice.krad.uif.view.InquiryView;

 import org.kuali.rice.krad.uif.view.LookupView;

 import org.kuali.rice.krad.uif.view.MaintenanceView;

 import org.kuali.rice.krad.uif.view.View;

 import org.kuali.rice.krad.uif.service.ViewDictionaryService;

 import org.kuali.rice.krad.uif.UifConstants.ViewType;

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

 import org.springframework.beans.PropertyValues;

 /**

  * Implementation of <code>ViewDictionaryService</code>

  *

  * <p>

  * Pulls view entries from the data dictionary to implement the various query

  * methods

  * </p>

  *

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

  */

 public class ViewDictionaryServiceImpl implements ViewDictionaryService {

     private DataDictionaryService dataDictionaryService;

     /**

      * @see org.kuali.rice.krad.uif.service.ViewDictionaryService#getInquirable(java.lang.Class,

      *      java.lang.String)

      */

     public Inquirable getInquirable(Class<?> dataObjectClass, String viewName) {

         Inquirable inquirable = null;

         if (StringUtils.isBlank(viewName)) {

             viewName = UifConstants.DEFAULT_VIEW_NAME;

         }

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

         indexKey.put(UifParameters.VIEW_NAME, viewName);

         indexKey.put(UifParameters.DATA_OBJECT_CLASS_NAME, dataObjectClass.getName());

         // get view properties

         PropertyValues propertyValues = getDataDictionary().getViewPropertiesByType(ViewType.INQUIRY, indexKey);

         String viewHelperServiceClassName = ViewModelUtils.getStringValFromPVs(propertyValues,

                 "viewHelperServiceClassName");

         if (StringUtils.isNotBlank(viewHelperServiceClassName)) {

             try {

                 inquirable = (Inquirable) ObjectUtils.newInstance(Class.forName(viewHelperServiceClassName));

             } catch (ClassNotFoundException e) {

                 throw new RiceRuntimeException(

                         "Unable to find class for inquirable classname: " + viewHelperServiceClassName, e);

             }

         }

         return inquirable;

     }

     /**

      * @see org.kuali.rice.krad.uif.service.ViewDictionaryService#isInquirable(java.lang.Class)

      */

     public boolean isInquirable(Class<?> dataObjectClass) {

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

         indexKey.put(UifParameters.VIEW_NAME, UifConstants.DEFAULT_VIEW_NAME);

         indexKey.put(UifParameters.DATA_OBJECT_CLASS_NAME, dataObjectClass.getName());

         boolean isInquirable = getDataDictionary().viewByTypeExist(ViewType.INQUIRY, indexKey);

         return isInquirable;

     }

     /**

      * @see org.kuali.rice.krad.uif.service.ViewDictionaryService#isLookupable(java.lang.Class)

      */

     public boolean isLookupable(Class<?> dataObjectClass) {

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

         indexKey.put(UifParameters.VIEW_NAME, UifConstants.DEFAULT_VIEW_NAME);

         indexKey.put(UifParameters.DATA_OBJECT_CLASS_NAME, dataObjectClass.getName());

         boolean isLookupable = getDataDictionary().viewByTypeExist(ViewType.LOOKUP, indexKey);

         return isLookupable;

     }

     /**

      * @see org.kuali.rice.krad.uif.service.ViewDictionaryService#isMaintainable(java.lang.Class)

      */

     public boolean isMaintainable(Class<?> dataObjectClass) {

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

         indexKey.put(UifParameters.VIEW_NAME, UifConstants.DEFAULT_VIEW_NAME);

         indexKey.put(UifParameters.DATA_OBJECT_CLASS_NAME, dataObjectClass.getName());

         boolean isMaintainable = getDataDictionary().viewByTypeExist(ViewType.MAINTENANCE, indexKey);

         return isMaintainable;

     }

     /**

      * @see org.kuali.rice.krad.uif.service.impl.ViewDictionaryService#getResultSetLimitForLookup(java.lang.Class)

      */

     @Override

     public Integer getResultSetLimitForLookup(Class<?> dataObjectClass) {

         LookupView lookupView = null;

         List<View> lookupViews = getDataDictionary().getViewsForType(UifConstants.ViewType.LOOKUP);

         for (View view : lookupViews) {

             LookupView lView = (LookupView) view;

             if (StringUtils.equals(lView.getDataObjectClassName().getName(), dataObjectClass.getName())) {

                 // if we already found a lookup view, only override if this is the default

                 if (lookupView != null) {

                     if (StringUtils.equals(lView.getViewName(), UifConstants.DEFAULT_VIEW_NAME)) {

                         lookupView = lView;

                     }

                 } else {

                     lookupView = lView;

                 }

             }

         }

         if (lookupView != null) {

             return lookupView.getResultSetLimit();

         }

         return null;

     }

     protected DataDictionary getDataDictionary() {

         return getDataDictionaryService().getDataDictionary();

     }

     protected DataDictionaryService getDataDictionaryService() {

         return this.dataDictionaryService;

     }

     public void setDataDictionaryService(DataDictionaryService dataDictionaryService) {

         this.dataDictionaryService = dataDictionaryService;

     }

 }