Java tutorial
/* * Copyright (C) 2007-2014 Crafter Software Corporation. * * This program 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 3 of the License, or * (at your option) any later version. * * This program 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 program. If not, see <http://www.gnu.org/licenses/>. */ package org.craftercms.security.utils.handlers; import java.io.IOException; import java.util.Collections; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.craftercms.commons.http.RequestContext; import org.craftercms.commons.rest.HttpMessageConvertingResponseWriter; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Required; import org.springframework.web.HttpMediaTypeNotAcceptableException; /** * Base for login, logout and access denied REST handlers. * * @author avasquez */ public abstract class AbstractRestHandlerBase { private static final Logger logger = LoggerFactory.getLogger(AbstractRestHandlerBase.class); protected HttpMessageConvertingResponseWriter responseWriter; @Required public void setResponseWriter(HttpMessageConvertingResponseWriter responseWriter) { this.responseWriter = responseWriter; } protected <T> void sendObject(int status, T responseBody, RequestContext context) throws IOException { HttpServletRequest request = context.getRequest(); HttpServletResponse response = context.getResponse(); response.setStatus(status); try { responseWriter.writeWithMessageConverters(responseBody, request, response); } catch (HttpMediaTypeNotAcceptableException e) { logger.error(e.getMessage(), e); response.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); } } protected void sendMessage(int status, String message, RequestContext context) throws IOException { sendObject(status, Collections.singletonMap("message", message), context); } protected void sendErrorMessage(int status, Throwable e, RequestContext context) throws IOException { sendMessage(status, e.getLocalizedMessage(), context); } }