/*

  * 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.kim.service.impl;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.Map;

 import org.kuali.rice.kim.bo.types.dto.KimTypeInfo;

 import org.kuali.rice.kim.bo.types.impl.KimTypeImpl;

 import org.kuali.rice.kim.service.KimTypeInfoService;

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

 import org.kuali.rice.kns.service.BusinessObjectService;

 import org.kuali.rice.kns.service.KNSServiceLocator;

 /**

  * 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 KimTypeInfoServiceImpl implements KimTypeInfoService {

         private BusinessObjectService businessObjectService;

         protected Map<String,KimTypeInfo> infoCache = Collections.synchronizedMap( new HashMap<String, KimTypeInfo>() );

         protected Map<String,KimTypeInfo> infoCacheByName = Collections.synchronizedMap( new HashMap<String, KimTypeInfo>() );

         protected boolean allLoaded = false;

         @SuppressWarnings("unchecked")

         public Collection<KimTypeInfo> getAllTypes() {

                 if ( !allLoaded ) {

                         Collection<KimTypeImpl> types = getBusinessObjectService().findAll(KimTypeImpl.class);

                         synchronized ( this ) {

                                 for ( KimTypeImpl typ : types ) {

                                         if ( typ.isActive() ) {

                                                 KimTypeInfo info = typ.toInfo();

                                                 infoCache.put(typ.getKimTypeId(), info);

                                                 infoCacheByName.put(typ.getNamespaceCode()+typ.getName(), info);

                                         }

                                 }

                         }

                         allLoaded = true;

                 }

                 return new ArrayList<KimTypeInfo>( infoCache.values() );

         }

         /**

          * This overridden method ...

          * 

          * @see org.kuali.rice.kim.service.KimTypeInfoService#getKimType(java.lang.String)

          */

         public KimTypeInfo getKimType(String kimTypeId) {

                 if ( !infoCache.containsKey(kimTypeId) ) {

                         Map<String,String> pk = new HashMap<String, String>(1);

                         pk.put(KimConstants.PrimaryKeyConstants.KIM_TYPE_ID, kimTypeId);

                         KimTypeImpl impl = (KimTypeImpl)getBusinessObjectService().findByPrimaryKey(KimTypeImpl.class, pk);

                         if ( impl != null ) {

                                 infoCache.put(kimTypeId, impl.toInfo());

                         }

                 }

                 return infoCache.get(kimTypeId);

         }

         public KimTypeInfo getKimTypeByName( String namespaceCode, String typeName ) {

                 if ( !infoCacheByName.containsKey(namespaceCode+typeName) ) {

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

                         pk.put(KimConstants.UniqueKeyConstants.NAMESPACE_CODE, namespaceCode);

                         pk.put("name", typeName);

                         KimTypeImpl impl = (KimTypeImpl)getBusinessObjectService().findByPrimaryKey(KimTypeImpl.class, pk);

                         if ( impl != null ) {

                                 infoCacheByName.put(namespaceCode+typeName, impl.toInfo());

                         }

                 }

                 return infoCacheByName.get(namespaceCode+typeName);

         }

         protected BusinessObjectService getBusinessObjectService() {

                 if ( businessObjectService == null ) {

                         businessObjectService = KNSServiceLocator.getBusinessObjectService();

                 }

                 return businessObjectService;

         }

 }