liferay 替JournalArticle添加分类

	   /**
     * 为网页内容添加分类
     * @param serviceContext
     */
 public boolean addCategoryForJournalArticle(ServiceContext serviceContext,String activityType,String parentsCategoryName,JournalArticle ja) {
     try {
         //检查producType有没有对应的分类
         AssetEntry  jaAssetEntry= AssetEntryLocalServiceUtil.getEntry(JournalArticle.class.getName(), ja.getResourcePrimKey());
         AssetCategory assetcat=checkOrGetCategory(activityType,parentsCategoryName,serviceContext);
         if(null!=assetcat){
             AssetEntryUtil.addAssetCategory(jaAssetEntry.getPrimaryKey(), assetcat.getPrimaryKey());     
         }
    } catch (PortalException e) {
        return false;
    } catch (SystemException e) {
        return false;
    }
     return true;
 }

 private  AssetCategory checkOrGetCategory(String activityType,String parentsCategoryName,ServiceContext serviceContext) throws SystemException{

     AssetCategory assetCategory= getAssetCategory("分类名称",parentsCategoryName,serviceContext);
      return assetCategory;
 }
 /**
  * 获取AssetCategory
  */
 private AssetCategory getAssetCategory(String categoryName ,String parentCategoryName,ServiceContext serviceContext) throws SystemException{
         AssetCategory assetc=findAssetCategoryByName(categoryName);
         if(null==assetc){
             assetc= createAssetCategory(categoryName,parentCategoryName,serviceContext);
         }
    return assetc;
 }
/**通过名字找category*/
 private AssetCategory findAssetCategoryByName(String categoryName) throws SystemException{
     AssetCategory assetc=null;
    List<AssetCategory> categoryList = null;
     categoryList = AssetCategoryLocalServiceUtil.getCategories();
     for(AssetCategory asset: categoryList)
         {
         String categoryN = asset.getName(); //get category Name
         if(categoryN.equalsIgnoreCase(categoryName)){
             assetc= asset;
             break;
         }
     }
     return assetc;
 }
 private AssetCategory createAssetCategory(String categoryName,String parentCategoryName,ServiceContext serviceContext){
     //如果沒有找到添加新的分類
//   assetc=AssetCategoryLocalServiceUtil.createAssetCategory(CounterLocalServiceUtil.increment());
//   assetc.setName(categoryName);
//   if(!StringUtils.isEmpty(parentCategoryName)){
//       AssetCategory passetc=findAssetCategoryByName(parentCategoryName);
//       assetc.setParentCategoryId(passetc.getCategoryId());
//   }
//   AssetCategoryLocalServiceUtil.addAssetCategory(assetc);
     return null;
 }