Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 com.gst.infrastructure.entityaccess.service; import java.util.Date; import java.util.Map; import javax.persistence.PersistenceException; import org.apache.commons.lang.exception.ExceptionUtils; import com.gst.infrastructure.codes.domain.CodeValue; import com.gst.infrastructure.core.api.JsonCommand; import com.gst.infrastructure.core.data.CommandProcessingResult; import com.gst.infrastructure.core.data.CommandProcessingResultBuilder; import com.gst.infrastructure.core.exception.PlatformDataIntegrityException; import com.gst.infrastructure.entityaccess.api.FineractEntityApiResourceConstants; import com.gst.infrastructure.entityaccess.data.FineractEntityDataValidator; import com.gst.infrastructure.entityaccess.domain.FineractEntityAccess; import com.gst.infrastructure.entityaccess.domain.FineractEntityAccessRepository; import com.gst.infrastructure.entityaccess.domain.FineractEntityRelation; import com.gst.infrastructure.entityaccess.domain.FineractEntityRelationRepositoryWrapper; import com.gst.infrastructure.entityaccess.domain.FineractEntityToEntityMapping; import com.gst.infrastructure.entityaccess.domain.FineractEntityToEntityMappingRepository; import com.gst.infrastructure.entityaccess.domain.FineractEntityToEntityMappingRepositoryWrapper; import com.gst.infrastructure.entityaccess.exception.FineractEntityToEntityMappingDateException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.dao.DataIntegrityViolationException; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; @Service public class FineractEntityAccessWriteServiceImpl implements FineractEntityAccessWriteService { private final static Logger logger = LoggerFactory.getLogger(FineractEntityAccessWriteServiceImpl.class); private final FineractEntityAccessRepository entityAccessRepository; private final FineractEntityRelationRepositoryWrapper fineractEntityRelationRepositoryWrapper; private final FineractEntityToEntityMappingRepository fineractEntityToEntityMappingRepository; private final FineractEntityToEntityMappingRepositoryWrapper fineractEntityToEntityMappingRepositoryWrapper; private final FineractEntityDataValidator fromApiJsonDeserializer; @Autowired public FineractEntityAccessWriteServiceImpl(final FineractEntityAccessRepository entityAccessRepository, final FineractEntityRelationRepositoryWrapper fineractEntityRelationRepositoryWrapper, final FineractEntityToEntityMappingRepository fineractEntityToEntityMappingRepository, final FineractEntityToEntityMappingRepositoryWrapper fineractEntityToEntityMappingRepositoryWrapper, FineractEntityDataValidator fromApiJsonDeserializer) { this.entityAccessRepository = entityAccessRepository; this.fineractEntityToEntityMappingRepository = fineractEntityToEntityMappingRepository; this.fromApiJsonDeserializer = fromApiJsonDeserializer; this.fineractEntityRelationRepositoryWrapper = fineractEntityRelationRepositoryWrapper; this.fineractEntityToEntityMappingRepositoryWrapper = fineractEntityToEntityMappingRepositoryWrapper; } @Override public CommandProcessingResult createEntityAccess(@SuppressWarnings("unused") JsonCommand command) { // TODO Auto-generated method stub return null; } @Override @Transactional public void addNewEntityAccess(final String entityType, final Long entityId, final CodeValue accessType, final String secondEntityType, final Long secondEntityId) { FineractEntityAccess entityAccess = FineractEntityAccess.createNew(entityType, entityId, accessType, secondEntityType, secondEntityId); entityAccessRepository.save(entityAccess); } @Override @Transactional public CommandProcessingResult createEntityToEntityMapping(Long relId, JsonCommand command) { try { this.fromApiJsonDeserializer.validateForCreate(command.json()); final FineractEntityRelation mapId = this.fineractEntityRelationRepositoryWrapper .findOneWithNotFoundDetection(relId); final Long fromId = command.longValueOfParameterNamed(FineractEntityApiResourceConstants.fromEnityType); final Long toId = command.longValueOfParameterNamed(FineractEntityApiResourceConstants.toEntityType); final Date startDate = command.DateValueOfParameterNamed(FineractEntityApiResourceConstants.startDate); final Date endDate = command.DateValueOfParameterNamed(FineractEntityApiResourceConstants.endDate); fromApiJsonDeserializer.checkForEntity(relId.toString(), fromId, toId); if (startDate != null && endDate != null) { if (endDate.before(startDate)) { throw new FineractEntityToEntityMappingDateException(startDate.toString(), endDate.toString()); } } final FineractEntityToEntityMapping newMap = FineractEntityToEntityMapping.newMap(mapId, fromId, toId, startDate, endDate); this.fineractEntityToEntityMappingRepository.save(newMap); return new CommandProcessingResultBuilder().withEntityId(newMap.getId()) .withCommandId(command.commandId()).build(); } catch (final DataIntegrityViolationException dve) { handleDataIntegrityIssues(command, dve.getMostSpecificCause(), dve); return CommandProcessingResult.empty(); } catch (final PersistenceException dve) { Throwable throwable = ExceptionUtils.getRootCause(dve.getCause()); handleDataIntegrityIssues(command, throwable, dve); return CommandProcessingResult.empty(); } } @Override @Transactional public CommandProcessingResult updateEntityToEntityMapping(Long mapId, JsonCommand command) { try { this.fromApiJsonDeserializer.validateForUpdate(command.json()); final FineractEntityToEntityMapping mapForUpdate = this.fineractEntityToEntityMappingRepositoryWrapper .findOneWithNotFoundDetection(mapId); String relId = mapForUpdate.getRelationId().getId().toString(); final Long fromId = command.longValueOfParameterNamed(FineractEntityApiResourceConstants.fromEnityType); final Long toId = command.longValueOfParameterNamed(FineractEntityApiResourceConstants.toEntityType); fromApiJsonDeserializer.checkForEntity(relId, fromId, toId); final Map<String, Object> changes = mapForUpdate.updateMap(command); if (!changes.isEmpty()) { this.fineractEntityToEntityMappingRepository.saveAndFlush(mapForUpdate); } return new CommandProcessingResultBuilder(). // withEntityId(mapForUpdate.getId()).withCommandId(command.commandId()).build(); } catch (DataIntegrityViolationException dve) { handleDataIntegrityIssues(command, dve.getMostSpecificCause(), dve); return CommandProcessingResult.empty(); } catch (final PersistenceException dve) { Throwable throwable = ExceptionUtils.getRootCause(dve.getCause()); handleDataIntegrityIssues(command, throwable, dve); return CommandProcessingResult.empty(); } } @Transactional @Override public CommandProcessingResult deleteEntityToEntityMapping(Long mapId) { // TODO Auto-generated method stub final FineractEntityToEntityMapping deleteMap = this.fineractEntityToEntityMappingRepositoryWrapper .findOneWithNotFoundDetection(mapId); this.fineractEntityToEntityMappingRepository.delete(deleteMap); return new CommandProcessingResultBuilder(). // withEntityId(deleteMap.getId()).build(); } private void handleDataIntegrityIssues(final JsonCommand command, final Throwable realCause, final Exception dve) { realCause.printStackTrace(); if (realCause.getMessage().contains("rel_id_from_id_to_id")) { final String fromId = command .stringValueOfParameterNamed(FineractEntityApiResourceConstants.fromEnityType); final String toId = command .stringValueOfParameterNamed(FineractEntityApiResourceConstants.toEntityType); throw new PlatformDataIntegrityException("error.msg.duplicate.entity.mapping", "EntityMapping from " + fromId + " to " + toId + " already exist"); } logAsErrorUnexpectedDataIntegrityException(dve); throw new PlatformDataIntegrityException("error.msg.entity.mapping", "Unknown data integrity issue with resource."); } private void logAsErrorUnexpectedDataIntegrityException(final Exception dve) { logger.error(dve.getMessage(), dve); } /* * @Override public CommandProcessingResult updateEntityAccess(Long * entityAccessId, JsonCommand command) { // TODO Auto-generated method stub * return null; } * * @Override public CommandProcessingResult removeEntityAccess(String * entityType, Long entityId, Long accessType, String secondEntityType, Long * secondEntityId) { // TODO Auto-generated method stub return null; } */ }