/*
* #%L
* BroadleafCommerce Open Admin Platform
* %%
* Copyright (C) 2009 - 2014 Broadleaf Commerce
* %%
* Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* 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.
* #L%
*/
package org.broadleafcommerce.openadmin.server.service.persistence.module.extension;
import org.apache.commons.collections.CollectionUtils;
import org.broadleafcommerce.common.exception.ExceptionHelper;
import org.broadleafcommerce.common.extension.ExtensionResultHolder;
import org.broadleafcommerce.common.extension.ExtensionResultStatusType;
import org.broadleafcommerce.common.presentation.client.PersistencePerspectiveItemType;
import org.broadleafcommerce.common.util.TypedPredicate;
import org.broadleafcommerce.openadmin.dto.CriteriaTransferObject;
import org.broadleafcommerce.openadmin.dto.Entity;
import org.broadleafcommerce.openadmin.dto.FieldMetadata;
import org.broadleafcommerce.openadmin.dto.FilterAndSortCriteria;
import org.broadleafcommerce.openadmin.dto.ForeignKey;
import org.broadleafcommerce.openadmin.dto.PersistencePackage;
import org.broadleafcommerce.openadmin.dto.PersistencePerspective;
import org.broadleafcommerce.openadmin.server.service.ValidationException;
import org.broadleafcommerce.openadmin.server.service.persistence.module.BasicPersistenceModule;
import org.broadleafcommerce.openadmin.server.service.persistence.module.FieldNotAvailableException;
import org.broadleafcommerce.openadmin.server.service.persistence.module.criteria.FilterMapping;
import org.springframework.stereotype.Service;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
/**
* Default implementation for the core framework.
*
* @see org.broadleafcommerce.openadmin.server.service.persistence.module.extension.BasicPersistenceModuleExtensionHandler
* @author Jeff Fischer
*/
@Service("blDefaultBasicPersistenceModuleExtensionHandler")
public class DefaultBasicPersistenceModuleExtensionHandler extends AbstractBasicPersistenceModuleExtensionHandler {
@Resource(name = "blBasicPersistenceModuleExtensionManager")
protected BasicPersistenceModuleExtensionManager extensionManager;
@PostConstruct
public void init() {
setPriority(BasicPersistenceModuleExtensionHandler.DEFAULT_PRIORITY);
if (isEnabled()) {
extensionManager.registerHandler(this);
}
}
@Override
public ExtensionResultStatusType rebalanceForAdd(BasicPersistenceModule basicPersistenceModule,
PersistencePackage persistencePackage, Serializable instance,
Map<String, FieldMetadata> mergedProperties,
ExtensionResultHolder<Serializable> resultHolder) {
try {
PersistencePerspective persistencePerspective = persistencePackage.getPersistencePerspective();
ForeignKey foreignKey = (ForeignKey) persistencePerspective.getPersistencePerspectiveItems().get
(PersistencePerspectiveItemType.FOREIGNKEY);
CriteriaTransferObject cto = new CriteriaTransferObject();
FilterAndSortCriteria sortCriteria = cto.get(foreignKey.getSortField());
sortCriteria.setSortAscending(foreignKey.getSortAscending());
List<FilterMapping> filterMappings = basicPersistenceModule.getFilterMappings(persistencePerspective,
cto, persistencePackage.getCeilingEntityFullyQualifiedClassname(), mergedProperties);
int totalRecords = basicPersistenceModule.getTotalRecords(persistencePackage
.getCeilingEntityFullyQualifiedClassname(), filterMappings);
Class<?> type = basicPersistenceModule.getFieldManager().getField(instance.getClass(),
foreignKey.getSortField()).getType();
boolean isBigDecimal = BigDecimal.class.isAssignableFrom(type);
basicPersistenceModule.getFieldManager().setFieldValue(instance, foreignKey.getSortField(),
isBigDecimal ? new BigDecimal(totalRecords + 1) : Long.valueOf(totalRecords + 1));
resultHolder.setResult(instance);
} catch (IllegalAccessException e) {
throw ExceptionHelper.refineException(e);
} catch (InstantiationException e) {
throw ExceptionHelper.refineException(e);
}
return ExtensionResultStatusType.HANDLED;
}
@Override
public ExtensionResultStatusType rebalanceForUpdate(final BasicPersistenceModule basicPersistenceModule,
PersistencePackage persistencePackage, Serializable instance,
Map<String, FieldMetadata> mergedProperties,
Object primaryKey, ExtensionResultHolder<Serializable> resultHolder) {
try {
Entity entity = persistencePackage.getEntity();
PersistencePerspective persistencePerspective = persistencePackage.getPersistencePerspective();
ForeignKey foreignKey = (ForeignKey) persistencePerspective.getPersistencePerspectiveItems().get
(PersistencePerspectiveItemType.FOREIGNKEY);
Integer requestedSequence = Integer.valueOf(entity.findProperty(foreignKey.getSortField()).getValue());
Integer previousSequence = new BigDecimal(String.valueOf(basicPersistenceModule.getFieldManager()
.getFieldValue(instance, foreignKey.getSortField()))).intValue();
final String idPropertyName = basicPersistenceModule.getIdPropertyName(mergedProperties);
final Object pKey = primaryKey;
instance = basicPersistenceModule.createPopulatedInstance(instance, entity, mergedProperties, false,
persistencePackage.isValidateUnsubmittedProperties());
if (!previousSequence.equals(requestedSequence)) {
// Sequence has changed. Rebalance the list
Serializable manyToField = (Serializable) basicPersistenceModule.getFieldManager().getFieldValue
(instance, foreignKey.getManyToField());
List<Serializable> records = (List<Serializable>) basicPersistenceModule.getFieldManager()
.getFieldValue(manyToField, foreignKey.getOriginatingField());
Serializable myRecord = (Serializable) CollectionUtils.find(records,
new TypedPredicate<Serializable>() {
@Override
public boolean eval(Serializable record) {
try {
return (pKey.equals(basicPersistenceModule.getFieldManager().getFieldValue(record,
idPropertyName)));
} catch (IllegalAccessException e) {
return false;
} catch (FieldNotAvailableException e) {
return false;
}
}
}
);
records.remove(myRecord);
if (CollectionUtils.isEmpty(records)) {
records.add(myRecord);
} else {
records.add(requestedSequence - 1, myRecord);
}
int index = 1;
Class<?> type = basicPersistenceModule.getFieldManager().getField(myRecord.getClass(),
foreignKey.getSortField()).getType();
boolean isBigDecimal = BigDecimal.class.isAssignableFrom(type);
for (Serializable record : records) {
basicPersistenceModule.getFieldManager().setFieldValue(record, foreignKey.getSortField(),
isBigDecimal ? new BigDecimal(index) : Long.valueOf(index));
index++;
}
}
resultHolder.setResult(instance);
} catch (IllegalAccessException e) {
throw ExceptionHelper.refineException(e);
} catch (FieldNotAvailableException e) {
throw ExceptionHelper.refineException(e);
} catch (ValidationException e) {
throw ExceptionHelper.refineException(e);
} catch (InstantiationException e) {
throw ExceptionHelper.refineException(e);
}
return ExtensionResultStatusType.HANDLED;
}
}