Java tutorial
/* * Copyright 2013 lorislab.org. * * 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.lorislab.smonitor.admin.client; import org.lorislab.smonitor.admin.client.listener.AgentChangeListener; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Style.Overflow; import com.google.gwt.dom.client.TableCellElement; import com.google.gwt.dom.client.TableRowElement; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.resources.client.ClientBundle; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DockLayoutPanel; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.Widget; import com.watopi.chosen.client.ChosenOptions; import com.watopi.chosen.client.gwt.ChosenListBox; import com.watopi.chosen.client.resources.ChozenCss; import com.watopi.chosen.client.resources.Resources; import java.util.HashSet; import java.util.List; import java.util.Set; import org.jboss.errai.common.client.api.RemoteCallback; import org.lorislab.smonitor.admin.client.factory.PleaseWaitPanelFactory; import org.lorislab.smonitor.admin.client.handler.DialogEventHandler; import org.lorislab.smonitor.admin.client.handler.TableRowHoverHandler; import org.lorislab.smonitor.admin.client.model.AgentWrapper; import org.lorislab.smonitor.admin.client.model.SessionWrapper; import org.lorislab.smonitor.admin.client.panel.PleaseWaitPanel; import org.lorislab.smonitor.admin.client.panel.QuestionDialogBox; import org.lorislab.smonitor.admin.client.panel.SessionGridPanel; import org.lorislab.smonitor.admin.client.panel.SessionInfoDetailsPanel; import org.lorislab.smonitor.admin.client.service.Client; import org.lorislab.smonitor.admin.client.service.ClientFactory; import org.lorislab.smonitor.admin.client.service.RestServiceExceptionCallback; import org.lorislab.smonitor.admin.client.toolbar.SessionToolbarPanel; import org.lorislab.smonitor.gwt.uc.page.ViewPage; import org.lorislab.smonitor.gwt.uc.table.EntityDataGrid; import org.lorislab.smonitor.gwt.uc.util.ChosenListBoxUtil; import org.lorislab.smonitor.rs.exception.RestServiceException; import org.lorislab.smonitor.rs.model.ServerApplication; import org.lorislab.smonitor.rs.model.SessionInfo; import org.lorislab.smonitor.rs.model.SessionInfoDetails; import org.lorislab.smonitor.rs.model.SessionSearchCriteria; import org.lorislab.smonitor.rs.service.ApplicationService; /** * The session view controller. * * @author Andrej Petras */ public final class SessionsView extends ViewPage implements AgentChangeListener { @UiField DockLayoutPanel searchCriteria; @UiField FlowPanel searchCriteriaItems; @UiField(provided = true) ChosenListBox agentsList; @UiField(provided = true) ChosenListBox appList; @UiField SessionGridPanel sessionPanel; @UiField Button btnSessionReset; @UiField Button btnSessionSearch; @UiField Label resultCount; private SessionToolbarPanel sessionToolbar = new SessionToolbarPanel(); private Client<ApplicationService> appService = ClientFactory.create(ApplicationService.class); private QuestionDialogBox<SessionWrapper> deleteQuestion = new QuestionDialogBox<SessionWrapper>(); private SessionInfoDetailsPanel detailsPanel = new SessionInfoDetailsPanel(); public SessionsView() { ChosenOptions options = new ChosenOptions(); options.setResources(GWT.<MyResources>create(MyResources.class)); agentsList = new ChosenListBox(true, options); options = new ChosenOptions(); options.setResources(GWT.<MyResources>create(MyResources.class)); appList = new ChosenListBox(true, options); initWidget(uiBinder.createAndBindUi(this)); searchCriteria.getElement().getParentElement().getStyle().setOverflow(Overflow.VISIBLE); searchCriteriaItems.getElement().getParentElement().getStyle().setOverflow(Overflow.VISIBLE); btnSessionReset.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { ChosenListBoxUtil.clearSelected(agentsList); ChosenListBoxUtil.clearSelected(appList); } }); btnSessionSearch.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { SessionSearchCriteria criteria = new SessionSearchCriteria(); criteria.setAgents(ChosenListBoxUtil.getSelectedValues(agentsList)); criteria.setApplications(ChosenListBoxUtil.getSelectedValues(appList)); sessionPanel.reset(); appService.call(sessionSearch, sessionSearchError).findSessions(criteria); } }); sessionPanel.setTableRowHoverHandler(new TableRowHoverHandler() { @Override public void onRowOver(TableRowElement row) { int index = row.getRowIndex(); SessionWrapper w = sessionPanel.get(index); TableCellElement cell = row.getCells().getItem(0); sessionToolbar.open(cell.getAbsoluteLeft(), cell.getAbsoluteTop(), w); } @Override public void onRowOut() { sessionToolbar.close(); } }); sessionPanel.setChangeSizeHandler(new EntityDataGrid.ChangeSizeHandler() { @Override public void changeSize(int size) { resultCount.setText("# " + sessionPanel.size()); } }); sessionToolbar.setHandler(new SessionToolbarPanel.ClickButtonHandler() { @Override public void info(SessionWrapper data) { PleaseWaitPanelFactory.open(); appService.call(sessionDetails).getSesssionDetails(data.data.getGuid(), data.data.getHost(), data.data.getApplication(), data.data.getId()); } @Override public void delete(SessionWrapper data) { deleteQuestion.open(data, "Delete Session", "Do you really want to delete selected session " + data.data.getId() + " ?"); } @Override public void refresh(SessionWrapper data) { sessionPanel.request(data); appService.call(sessionRefresh).getSesssion(data.data.getGuid(), data.data.getHost(), data.data.getApplication(), data.data.getId()); } }); deleteQuestion.setOkHandler(new DialogEventHandler<SessionWrapper>() { @Override public void event(SessionWrapper data) { appService.call(sessionDelete).deleteSesssion(data.data.getGuid(), data.data.getHost(), data.data.getApplication(), data.data.getId()); } }); } @Override public void openPage() { sessionToolbar.close(); deleteQuestion.close(); } @Override public void closePage() { sessionToolbar.close(); deleteQuestion.close(); } @Override public String getPageTitle() { return "Sessions"; } final RemoteCallback<List<SessionInfo>> sessionSearch = new RemoteCallback<List<SessionInfo>>() { @Override public void callback(List<SessionInfo> value) { sessionPanel.reset(); sessionPanel.addAllItems(value); } }; final RemoteCallback<SessionInfo> sessionRefresh = new RemoteCallback<SessionInfo>() { @Override public void callback(SessionInfo value) { if (value != null) { sessionPanel.replaceById(value.getId(), value); } } }; final RemoteCallback<SessionInfoDetails> sessionDetails = new RemoteCallback<SessionInfoDetails>() { @Override public void callback(SessionInfoDetails value) { if (value != null) { detailsPanel.open(value); } PleaseWaitPanelFactory.close(false); } }; final RestServiceExceptionCallback sessionSearchError = new RestServiceExceptionCallback() { @Override public void exception(RestServiceException exception) { } }; final RemoteCallback<String> sessionDelete = new RemoteCallback<String>() { @Override public void callback(String value) { sessionPanel.removeById(value); deleteQuestion.close(); } }; /** * {@inheritDoc} */ @Override public void agentChanged(List<AgentWrapper> data) { sessionPanel.reset(); agentsList.clear(); appList.clear(); if (data != null) { Set<String> tmp = new HashSet<String>(); for (AgentWrapper w : data) { if (w.server != null) { agentsList.addItem(w.data.getName(), w.data.getGuid()); List<ServerApplication> apps = w.server.getApplications(); if (apps != null) { for (ServerApplication a : apps) { if (!tmp.contains(a.getId())) { appList.addItem(a.getName(), a.getId()); tmp.add(a.getId()); } } } } } } } interface MyUiBinder extends UiBinder<Widget, SessionsView> { } private static SessionsView.MyUiBinder uiBinder = GWT.create(SessionsView.MyUiBinder.class); public interface MyResources extends Resources { @ClientBundle.Source("chozen.css") @Override ChozenCss css(); } }