Structure contentletStructure = StructureCache.getStructureByInode(contentlet.getStructureInode());
Identifier contentletIdentifier = APILocator.getIdentifierAPI().find(contentlet);
/*make sure we have a structure in place before saving */
CommentsWebAPI cAPI = new CommentsWebAPI();
cAPI.validateComments(contentlet.getInode());
Structure commentsStructure = StructureCache.getStructureByVelocityVarName(CommentsWebAPI.commentsVelocityStructureName);
Contentlet contentletComment = new Contentlet();