+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.server.mvc;
-
-import java.util.Locale;
-import java.util.Map;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.argeo.ArgeoException;
-import org.argeo.server.ServerAnswer;
-import org.argeo.server.ServerSerializer;
-import org.springframework.validation.BindingResult;
-import org.springframework.web.servlet.View;
-import org.springframework.web.servlet.view.AbstractView;
-
-/**
- * Can be used as a standalone {@link View} or using
- * {@link SerializingViewResolver}
- */
-public class SerializingView extends AbstractView implements MvcConstants {
- private final String viewName;
- private final Locale locale;
-
- private ServerSerializer serializer;
-
- public SerializingView() {
- this.viewName = null;
- this.locale = Locale.getDefault();
- }
-
- public SerializingView(String viewName, Locale locale,
- ServerSerializer serializer) {
- this.viewName = viewName;
- this.locale = locale;
- this.serializer = serializer;
- }
-
- @SuppressWarnings({ "rawtypes" })
- @Override
- protected void renderMergedOutputModel(Map model,
- HttpServletRequest request, HttpServletResponse response)
- throws Exception {
- Boolean serverAnswersAsHtml = model
- .containsKey(ANSWER_MODEL_KEY_AS_HTML);
-
- final Object answer = findAnswerInModel(model);
-
- if ((answer instanceof ServerAnswer) && serverAnswersAsHtml) {
- response.setContentType("text/html");
- ServerAnswer serverAnswer = (ServerAnswer) answer;
- response.getWriter().append("<pre>");
- response.getWriter().append(serverAnswer.getMessage());
- response.getWriter().append("</pre>");
- } else {
- serializer.serialize(answer, request, response);
- }
- }
-
- @SuppressWarnings("rawtypes")
- protected Object findAnswerInModel(Map model) {
- if (model.size() == 1) {
- return model.values().iterator().next();
- } else if (model.size() == 2) {
- boolean otherIsBindingResult = false;
- Object answerValue = null;
- for (Object value : model.values()) {
- if (value instanceof BindingResult)
- otherIsBindingResult = true;
- else
- answerValue = value;
- }
-
- if (otherIsBindingResult)
- return answerValue;
- }
-
- if (model.containsKey(ANSWER_MODEL_KEY)) {
- return model.get(ANSWER_MODEL_KEY);
- } else if (model.containsKey(ANSWER_MODEL_KEY_AS_HTML)) {
- return model.get(ANSWER_MODEL_KEY_AS_HTML);
- } else if (viewName != null && model.containsKey(viewName)) {
- return model.get(viewName);
- } else {
- if (model.size() == 0)
- throw new ArgeoException("Model is empty.");
- else
- throw new ArgeoException(
- "Model has a size different from 1. Specify a modelKey.");
- }
- }
-
- public String getViewName() {
- return viewName;
- }
-
- public Locale getLocale() {
- return locale;
- }
-
- public void setSerializer(ServerSerializer serializer) {
- this.serializer = serializer;
- }
-
-}