private void readAllAuthors(HttpServletRequest request, HttpServletResponse response)
throws SQLException, ServletException, IOException {
RequestDispatcher rd = getServletContext().getRequestDispatcher("/viewauthor.jsp");
Integer pageNo = Integer.parseInt(request.getParameter("pageNo"));
try {
List<Author> authors = adminService.getAllAuthors(pageNo, 10);
request.setAttribute("authors", authors);
rd.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
rd.forward(request, response);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void deleteAuthor(HttpServletRequest request, HttpServletResponse response)
throws SQLException, ServletException, IOException {
RequestDispatcher rd = getServletContext().getRequestDispatcher("/viewauthor.jsp");
Integer authorId = Integer.parseInt(request.getParameter("authorId"));
try {
adminService.deleteAuthor(authorId);
request.setAttribute("result", "Author Deleted Sucessfully.");
rd.forward(request, response);
} catch (ServletException e) {
request.setAttribute("result", "Author Delete Failed.");
e.printStackTrace();
rd.forward(request, response);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void addAuthor(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
RequestDispatcher rd = getServletContext().getRequestDispatcher("/admin.jsp");
String authorName = request.getParameter("authorName");
if (authorName.length() < 1 || authorName.length() > 40) {
rd = getServletContext().getRequestDispatcher("/addauthor.jsp");
request.setAttribute("result", "Author Name cannot be more than 45 chars!");
rd.forward(request, response);
}
Author author = new Author();
author.setAuthorName(authorName);
try {
adminService.addAuthor(author);
request.setAttribute("result", "Author Added Sucessfully!");
rd.forward(request, response);
} catch (SQLException e) {
e.printStackTrace();
rd = getServletContext().getRequestDispatcher("/addauthor.jsp");
request.setAttribute("result", "Author Add Failed!");
rd.forward(request, response);
}
}