Java tutorial
/* * Copyright (c) 2008-2016 Haulmont. * * 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 com.haulmont.cuba.gui.app.security.session.browse; import com.haulmont.cuba.gui.components.*; import com.haulmont.cuba.security.app.UserSessionService; import com.haulmont.cuba.security.entity.UserSessionEntity; import org.apache.commons.lang.StringUtils; import javax.inject.Inject; import java.util.*; public class SessionMessageWindow extends AbstractWindow { @Inject protected TextArea messageField; @Inject protected OptionsGroup whomOptionsGroup; @Inject protected UserSessionService uss; @Inject protected Label sendToAllLabel; protected String result; protected Set<UserSessionEntity> allSessions; protected Set<UserSessionEntity> selectedSessions; protected String TO_ALL; protected String TO_SELECTED; @Override public void init(Map<String, Object> params) { TO_ALL = messages.getMessage(getClass(), "messageWindow.toAll"); TO_SELECTED = messages.getMessage(getClass(), "messageWindow.toSelected"); allSessions = (Set) params.get("allSessions"); selectedSessions = (Set) params.get("selectedSessions"); Objects.requireNonNull(allSessions, "allSessions window parameter is not set"); Objects.requireNonNull(selectedSessions, "selectedSessions window parameter is not set"); List<String> whomOptions = new ArrayList<>(2); if (!selectedSessions.isEmpty()) { whomOptions.add(TO_SELECTED); } whomOptions.add(TO_ALL); whomOptionsGroup.setOptionsList(whomOptions); if (whomOptions.size() == 1) { whomOptionsGroup.setVisible(false); sendToAllLabel.setValue(TO_ALL); sendToAllLabel.setVisible(true); } whomOptionsGroup.setValue(whomOptions.get(0)); } public void send() { String text = messageField.getValue(); Set<UserSessionEntity> sessions = TO_ALL.equals(whomOptionsGroup.getValue()) ? allSessions : selectedSessions; if (!sessions.isEmpty() && !StringUtils.isBlank(text)) { List<UUID> sessionIds = new ArrayList<>(sessions.size()); for (UserSessionEntity session : sessions) { sessionIds.add(session.getId()); } uss.postMessage(sessionIds, text); result = messages.formatMessage(getClass(), "messageWindow.report", sessions.size()); } close(); } public void close() { close(Window.CLOSE_ACTION_ID); } public String getResult() { return result; } }