/**
* Copyright (c)2010-2011 Enterprise Website Content Management System(EWCMS), All rights reserved.
* EWCMS PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
* http://www.ewcms.com
*/
package com.ewcms.content.resource.service;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Date;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;
import com.ewcms.common.io.ImageUtil;
import com.ewcms.content.resource.dao.ResourceDAO;
import com.ewcms.content.resource.dao.ResourceDAOable;
import com.ewcms.content.resource.model.Resource;
import com.ewcms.content.resource.model.Resource.Status;
import com.ewcms.content.resource.model.Resource.Type;
import com.ewcms.content.resource.service.operator.FileOperator;
import com.ewcms.content.resource.service.operator.ResourceOperatorable;
import com.ewcms.core.site.model.Site;
import com.ewcms.publication.uri.UriRules;
import com.ewcms.web.util.EwcmsContextUtil;
/**
* 实现资源管理
*
* @author 吴智俊 王伟
*/
@Service
public class ResourceService implements ResourceServiceable {
private static final Logger logger = LoggerFactory.getLogger(ResourceService.class);
private static final String DEFAULT_RESOUCE_CONTEXT = "pub_res";
private static final String DEFAULT_THUMB_SUFFIX="_thumb";
@Autowired
private ResourceDAOable resourceDao;
private Site getCurrentSite() {
Site site = EwcmsContextUtil.getCurrentSite();
logger.debug("Current site is {}",site);
return site;
}
private String getResourceContext(){
//TODO Get resource context
return DEFAULT_RESOUCE_CONTEXT;
}
private String getThumbSuffix(){
return DEFAULT_THUMB_SUFFIX;
}
/**
* 通过路径得到文件名
*
* @param path 文件路径
* @return
*/
String getFilename(String path) {
String[] names = path.split("/");
return names[names.length - 1];
}
/**
* 得到引导图Uri
*
* @param uri 统一资源资源地址
* @return
*/
String getThumbUri(String uri){
int index = StringUtils.lastIndexOf(uri, '.');
if(index == -1){
return uri+getThumbSuffix();
}else{
return StringUtils.overlay(uri, getThumbSuffix(), index,index);
}
}
/**
* 上传图片压缩
*
* @param site 站点
* @param uri 图片地址
* @param path 图片地址
* @return 压缩图片地址
*/
private String imageCompression(Site site,String uri,String path){
String thumbUri = getThumbUri(uri);
String imagePath = Resource.resourcePath(site, thumbUri);
boolean success = ImageUtil.compression(path, imagePath, 128, 128);
return success ? thumbUri : uri;
}
/**
* 得到文件后缀名
*
* @param name 文件名
* @return
*/
String getSuffix(String name) {
if (StringUtils.contains(name, ".")) {
return StringUtils.substringAfterLast(name, ".");
}else{
return "";
}
}
@Override
public Resource uplaod(File file, String path, Resource.Type type) throws IOException {
Site site = getCurrentSite();
ResourceOperatorable operator = new FileOperator(site.getResourceDir());
String name = getFilename(path);
String uri = operator.write(new FileInputStream(file), UriRules.newResource(getResourceContext()),getSuffix(name));
Resource resource = new Resource();
resource.setUri(uri);
resource.setSize(file.length());
resource.setName(name);
resource.setDescription(name);
resource.setType(type);
resource.setSite(site);
if (type == Resource.Type.IMAGE) {
resource.setThumbUri(imageCompression(site,uri,file.getPath()));
}
resourceDao.persist(resource);
return resource;
}
@Override
public Resource upload(Site site, File file, String path, Type type) throws IOException{
ResourceOperatorable operator = new FileOperator(site.getResourceDir());
String name = getFilename(path);
String uri = operator.write(new FileInputStream(file), UriRules.newResource(getResourceContext()),getSuffix(name));
Resource resource = new Resource();
resource.setUri(uri);
resource.setSize(file.length());
resource.setName(name);
resource.setDescription(name);
resource.setType(type);
resource.setStatus(Status.NORMAL);
resource.setSite(site);
if (type == Resource.Type.IMAGE) {
resource.setThumbUri(imageCompression(site,uri,file.getPath()));
}
resourceDao.persist(resource);
return resource;
}
@Override
public Resource update(Integer id, File file, String path, Resource.Type type)throws IOException {
Resource resource = resourceDao.get(id);
Assert.notNull(resource,"Resourc is not exist,id = " + id);
FileUtils.copyFile(file, new File(resource.getPath()));
if (type == Resource.Type.IMAGE) {
if(resource.getPath().equals(resource.getThumbPath())){
String thumbUri = getThumbUri(resource.getUri());
String thumbPath = Resource.resourcePath(resource.getSite(), thumbUri);
if(ImageUtil.compression(file.getPath(), thumbPath, 128, 128)){
resource.setThumbUri(thumbUri);
}
}else{
if(!ImageUtil.compression(file.getPath(), resource.getThumbPath(), 128, 128)){
FileUtils.forceDeleteOnExit(new File(resource.getThumbPath()));
resource.setThumbUri(resource.getUri());
}
}
}
resource.setStatus(Status.NORMAL);
resource.setUpdateTime(new Date(System.currentTimeMillis()));
resource.setName(getFilename(path));
resourceDao.persist(resource);
return resource;
}
@Override
public Resource updateThumb(Integer id,File file, String path) throws IOException {
Resource resource = resourceDao.get(id);
Assert.notNull(resource,"Resourc is not exist,id = " + id);
String thumbPath = resource.getThumbPath();
Site site = getCurrentSite();
ResourceOperatorable operator = new FileOperator(site.getResourceDir());
if(StringUtils.isBlank(thumbPath)){
String name = getFilename(path);
String uri = operator.write(new FileInputStream(file), UriRules.newResourceThumb(getResourceContext()),getSuffix(name));
resource.setThumbUri(uri);
resource.setThumbPath(Resource.resourcePath(site, uri));
}else{
FileUtils.copyFile(file, new File(thumbPath));
}
resource.setStatus(Status.NORMAL);
resourceDao.persist(resource);
return resource;
}
@Override
public List<Resource> save(Map<Integer, String> descriptions) {
List<Resource> resources = new ArrayList<Resource>();
for (Integer id : descriptions.keySet()) {
Resource resource = resourceDao.get(id);
if(resource == null || resource.getStatus() == Status.DELETE){
continue;
}
String desc = descriptions.get(id);
resource.setStatus(Status.NORMAL);
resource.setDescription(desc);
resourceDao.persist(resource);
resources.add(resource);
}
return resources;
}
/**
* 删除属与资源的文件
*
* @param resource
*/
private void deleteResourceFile(Resource resource){
File f = new File(resource.getPath());
f.deleteOnExit();
if(StringUtils.isNotBlank(resource.getThumbPath())){
f = new File(resource.getThumbPath());
f.deleteOnExit();
}
}
@Override
public void delete(int[] ids) {
for(int id : ids){
Resource resource = getResource(id);
deleteResourceFile(resource);
resourceDao.remove(resource);
if(resource.getStatus() == Resource.Status.RELEASED){
//TODO 写入删除日志，下架该资源
}
}
}
@Override
public Resource getResource(Integer id) {
return resourceDao.get(id);
}
@Override
public Resource updateDescription(Integer id, String description) {
Resource resource = getResource(id);
resource.setDescription(description);
resourceDao.persist(resource);
return resource;
}
@Override
public void softDelete(int[] ids) {
for(int id : ids){
Resource resource = getResource(id);
resource.setStatus(Resource.Status.DELETE);
resourceDao.persist(resource);
}
}
@Override
public void clearSoftDelete() {
Integer siteId = getCurrentSite().getId();
List<Resource> resources = resourceDao.findSoftDeleteResources(siteId);
for(Resource res : resources){
deleteResourceFile(res);
resourceDao.remove(res);
}
}
@Override
public void revert(int[] ids) {
for(int id : ids){
Resource resource = getResource(id);
if(resource.getStatus() == Resource.Status.DELETE){
resource.setStatus(Resource.Status.NORMAL);
resourceDao.persist(resource);
}
}
}
@Override
public List<Resource> findPublishResources(Integer siteId, Boolean forceAgain) {
return resourceDao.findPublishResources(siteId,forceAgain);
}
@Override
public void publishResourceSuccess(Integer id) {
Resource resource = resourceDao.get(id);
resource.setStatus(Resource.Status.RELEASED);
resource.setPublishTime(new Date(System.currentTimeMillis()));
resourceDao.persist(resource);
}
@Override
public Resource getResourceByUri(String uri) {
Site site = getCurrentSite();
Integer siteId = site.getId();
return resourceDao.getResourceByUri(siteId, uri);
}
public void setResourceDao(ResourceDAO dao) {
this.resourceDao = dao;
}
}