com.emergya.persistenceGeo.service.impl.ResourceServiceImpl.java Source code

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Here is the source code for com.emergya.persistenceGeo.service.impl.ResourceServiceImpl.java

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/*
 * ResourceServiceImpl.java
 * 
 * Copyright (C) 2013
 * 
 * This file is part of Proyecto persistenceGeo
 * 
 * This software is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option) any
 * later version.
 * 
 * This software is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this library; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 * 
 * As a special exception, if you link this library with other files to produce
 * an executable, this library does not by itself cause the resulting executable
 * to be covered by the GNU General Public License. This exception does not
 * however invalidate any other reasons why the executable file might be covered
 * by the GNU General Public License.
 * 
 * Authors:: Alejandro Daz Torres (mailto:adiaz@emergya.com)
 */
package com.emergya.persistenceGeo.service.impl;

import java.io.File;

import javax.annotation.Resource;

import org.apache.commons.io.FileUtils;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import com.emergya.persistenceGeo.dao.AbstractGenericDao;
import com.emergya.persistenceGeo.dao.GenericDAO;
import com.emergya.persistenceGeo.dao.ResourceEntityDao;
import com.emergya.persistenceGeo.dto.ResourceDto;
import com.emergya.persistenceGeo.metaModel.AbstractResourceEntity;
import com.emergya.persistenceGeo.metaModel.Instancer;
import com.emergya.persistenceGeo.service.ResourceService;

/**
 * ResourceService transactional implementation based on daos uses
 * {@link AbstractGenericDao}
 * 
 * @author <a href="mailto:adiaz@emergya.com">adiaz</a>
 * 
 */
@Repository
@Transactional
public class ResourceServiceImpl extends AbstractServiceImpl<ResourceDto, AbstractResourceEntity>
        implements ResourceService {

    @Resource
    private Instancer instancer;
    @Resource
    private ResourceEntityDao resourceDao;

    public ResourceServiceImpl() {
        super();
    }

    @Override
    protected GenericDAO<AbstractResourceEntity, Long> getDao() {
        return resourceDao;
    }

    @Override
    public ResourceDto getByAccessId(Long accessId) {
        return entityToDto(resourceDao.findByAccessId(accessId));
    }

    @Override
    public void removeByAccessId(Long accessId) {
        resourceDao.deleteByAccessId(accessId);
    }

    protected ResourceDto entityToDto(AbstractResourceEntity entity) {
        ResourceDto dto = null;
        if (entity != null) {
            dto = new ResourceDto();
            // Add own parameters
            dto.setId((Long) entity.getId());
            dto.setName(entity.getName());
            dto.setSize(entity.getSize());
            dto.setType(entity.getType());
            dto.setAccessId(entity.getAccessId());

            if (entity.getData() != null) {
                try {
                    String extension = "png";
                    if (entity.getType() != null) {
                        if (entity.getType().split("/").length > 0) {
                            extension = entity.getType().split("/")[entity.getType().split("/").length - 1];
                        } else {
                            extension = entity.getType();
                        }
                    }
                    File file = com.emergya.persistenceGeo.utils.FileUtils.createFileTemp(entity.getName(),
                            extension);
                    FileUtils.writeByteArrayToFile(file, entity.getData());
                    dto.setData(file);
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        return dto;
    }

    protected AbstractResourceEntity dtoToEntity(ResourceDto dto) {
        AbstractResourceEntity entity = null;
        if (dto != null) {
            if (dto.getId() != null && dto.getId() > 0) {
                entity = (AbstractResourceEntity) resourceDao.findById(dto.getId(), false);
            } else {
                entity = instancer.createResourceEntity();
            }
            // Add own parameters
            entity.setName(dto.getName());
            entity.setSize(dto.getSize());
            entity.setType(dto.getType());
            entity.setAccessId(dto.getAccessId());

            //Layer data
            if (dto.getData() != null) {
                try {
                    entity.setData(FileUtils.readFileToByteArray(dto.getData()));
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return entity;
    }
}