/*
* Copyright 2012-2014 the original author or authors.
*
* 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.
*/
package org.lightadmin.core.config.domain.unit.processor;
import org.lightadmin.api.config.builder.FieldSetConfigurationUnitBuilder;
import org.lightadmin.api.config.unit.FieldSetConfigurationUnit;
import org.lightadmin.core.config.domain.common.GenericFieldSetConfigurationUnitBuilder;
import org.lightadmin.core.config.domain.unit.ConfigurationUnit;
import org.lightadmin.core.config.domain.unit.ConfigurationUnits;
import org.lightadmin.core.config.domain.unit.DomainConfigurationUnitType;
import org.lightadmin.core.persistence.metamodel.PersistentPropertyType;
import org.springframework.data.mapping.*;
import org.springframework.data.mapping.context.MappingContext;
import org.springframework.util.ClassUtils;
import static org.apache.commons.lang3.StringUtils.capitalize;
import static org.lightadmin.core.config.domain.unit.DomainConfigurationUnitType.CONFIGURATION;
import static org.lightadmin.core.persistence.metamodel.PersistentPropertyType.isSupportedAttributeType;
public class EmptyConfigurationUnitPostProcessor extends MappingContextAwareConfigurationUnitPostProcessor {
public EmptyConfigurationUnitPostProcessor(final MappingContext mappingContext) {
super(mappingContext);
}
@Override
public ConfigurationUnit postProcess(final ConfigurationUnit configurationUnit, ConfigurationUnits configurationUnits) {
if (configurationUnit.getDomainConfigurationUnitType() != CONFIGURATION && isEmptyFieldSetConfigurationUnit(configurationUnit)) {
return fieldSetUnitWithPersistentFields(configurationUnit.getDomainType(), configurationUnit.getDomainConfigurationUnitType());
}
return configurationUnit;
}
private FieldSetConfigurationUnit fieldSetUnitWithPersistentFields(final Class<?> domainType, DomainConfigurationUnitType configurationUnitType) {
final FieldSetConfigurationUnitBuilder fieldSetConfigurationUnitBuilder = new GenericFieldSetConfigurationUnitBuilder(domainType, configurationUnitType);
PersistentEntity persistentEntity = getPersistentEntity(domainType);
persistentEntity.doWithProperties(new SimplePropertyHandler() {
@Override
public void doWithPersistentProperty(PersistentProperty<?> property) {
addField(property, fieldSetConfigurationUnitBuilder);
}
});
persistentEntity.doWithAssociations(new SimpleAssociationHandler() {
@Override
public void doWithAssociation(Association<? extends PersistentProperty<?>> association) {
addField(association.getInverse(), fieldSetConfigurationUnitBuilder);
}
});
return fieldSetConfigurationUnitBuilder.build();
}
private void addField(PersistentProperty<?> property, FieldSetConfigurationUnitBuilder fieldSetConfigurationUnitBuilder) {
if (isSupportedAttributeType(PersistentPropertyType.forPersistentProperty(property))) {
fieldSetConfigurationUnitBuilder.field(property.getName()).caption(capitalize(property.getName()));
}
}
private boolean isEmptyFieldSetConfigurationUnit(ConfigurationUnit configurationUnit) {
return ClassUtils.isAssignableValue(FieldSetConfigurationUnit.class, configurationUnit) && ((FieldSetConfigurationUnit) configurationUnit).isEmpty();
}
}