Java tutorial
/* 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.activiti.explorer.ui.management.identity; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.List; import org.activiti.engine.IdentityService; import org.activiti.engine.ProcessEngines; import org.activiti.engine.identity.Group; import org.activiti.engine.identity.User; import org.activiti.explorer.ExplorerApp; import org.activiti.explorer.I18nManager; import org.activiti.explorer.Messages; import org.activiti.explorer.data.LazyLoadingContainer; import org.activiti.explorer.data.LazyLoadingQuery; import org.activiti.explorer.ui.Images; import org.activiti.explorer.ui.custom.ConfirmationDialogPopupWindow; import org.activiti.explorer.ui.custom.DetailPanel; import org.activiti.explorer.ui.custom.SelectUsersPopupWindow; import org.activiti.explorer.ui.event.ConfirmationEvent; import org.activiti.explorer.ui.event.ConfirmationEventListener; import org.activiti.explorer.ui.event.SubmitEvent; import org.activiti.explorer.ui.event.SubmitEventListener; import org.activiti.explorer.ui.mainlayout.ExplorerLayout; import com.vaadin.ui.Alignment; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import com.vaadin.ui.ComboBox; import com.vaadin.ui.Component; import com.vaadin.ui.Embedded; import com.vaadin.ui.GridLayout; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.Label; import com.vaadin.ui.Table; import com.vaadin.ui.TextField; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.themes.Reindeer; /** * @author Joram Barrez */ public class GroupDetailPanel extends DetailPanel implements MemberShipChangeListener { private static final long serialVersionUID = 1L; protected transient IdentityService identityService; protected I18nManager i18nManager; protected GroupPage groupPage; protected Group group; protected VerticalLayout panelLayout; protected boolean editingDetails; protected HorizontalLayout detailLayout; protected GridLayout detailsGrid; protected TextField nameTextField; protected ComboBox typeCombobox; protected HorizontalLayout membersLayout; protected Table membersTable; protected Label noMembersTable; public GroupDetailPanel(GroupPage groupPage, String groupId) { this.groupPage = groupPage; this.identityService = ProcessEngines.getDefaultProcessEngine().getIdentityService(); this.group = identityService.createGroupQuery().groupId(groupId).singleResult(); this.i18nManager = ExplorerApp.get().getI18nManager(); init(); } protected void init() { setSizeFull(); addStyleName(Reindeer.PANEL_LIGHT); initPageTitle(); initGroupDetails(); initMembers(); initActions(); } protected void initActions() { Button createGroupButton = new Button(i18nManager.getMessage(Messages.GROUP_CREATE)); createGroupButton.setIcon(Images.GROUP_16); createGroupButton.addListener(new ClickListener() { public void buttonClick(ClickEvent event) { NewGroupPopupWindow popup = new NewGroupPopupWindow(); ExplorerApp.get().getViewManager().showPopupWindow(popup); } }); groupPage.getToolBar().removeAllButtons(); groupPage.getToolBar().addButton(createGroupButton); } protected void initPageTitle() { HorizontalLayout layout = new HorizontalLayout(); layout.setWidth(100, UNITS_PERCENTAGE); layout.addStyleName(ExplorerLayout.STYLE_TITLE_BLOCK); layout.setSpacing(true); layout.setMargin(false, false, true, false); addDetailComponent(layout); Embedded groupImage = new Embedded(null, Images.GROUP_50); layout.addComponent(groupImage); Label groupName = new Label(getGroupName(group)); groupName.setSizeUndefined(); groupName.addStyleName(Reindeer.LABEL_H2); layout.addComponent(groupName); layout.setComponentAlignment(groupName, Alignment.MIDDLE_LEFT); layout.setExpandRatio(groupName, 1.0f); } protected String getGroupName(Group theGroup) { if (theGroup.getName() == null) { return theGroup.getId(); } return group.getName(); } protected void initGroupDetails() { Label groupDetailsHeader = new Label(i18nManager.getMessage(Messages.GROUP_HEADER_DETAILS)); groupDetailsHeader.addStyleName(ExplorerLayout.STYLE_H3); groupDetailsHeader.addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK); addDetailComponent(groupDetailsHeader); detailLayout = new HorizontalLayout(); detailLayout.setSpacing(true); detailLayout.setMargin(true, false, true, false); addDetailComponent(detailLayout); populateGroupDetails(); } protected void populateGroupDetails() { initGroupProperties(); initGroupActions(); } protected void initGroupProperties() { detailsGrid = new GridLayout(2, 3); detailsGrid.setSpacing(true); detailLayout.setMargin(true, true, true, false); detailLayout.addComponent(detailsGrid); // id Label idLabel = new Label(i18nManager.getMessage(Messages.GROUP_ID) + ": "); idLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(idLabel); Label idValueLabel = new Label(group.getId()); detailsGrid.addComponent(idValueLabel); // name Label nameLabel = new Label(i18nManager.getMessage(Messages.GROUP_NAME) + ": "); nameLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(nameLabel); if (!editingDetails) { Label nameValueLabel = new Label(group.getName()); detailsGrid.addComponent(nameValueLabel); } else { nameTextField = new TextField(null, group.getName()); detailsGrid.addComponent(nameTextField); } // Type Label typeLabel = new Label(i18nManager.getMessage(Messages.GROUP_TYPE) + ": "); typeLabel.addStyleName(ExplorerLayout.STYLE_LABEL_BOLD); detailsGrid.addComponent(typeLabel); if (!editingDetails) { Label typeValueLabel = new Label(group.getType()); detailsGrid.addComponent(typeValueLabel); } else { typeCombobox = new ComboBox(null, Arrays.asList("assignment", "security-role")); typeCombobox.setNullSelectionAllowed(false); typeCombobox.setInvalidAllowed(false); typeCombobox.select(group.getType()); detailsGrid.addComponent(typeCombobox); } } protected void initGroupActions() { VerticalLayout actionsLayout = new VerticalLayout(); actionsLayout.setSpacing(true); actionsLayout.setMargin(false, false, false, true); detailLayout.addComponent(actionsLayout); if (editingDetails) { initSaveButton(actionsLayout); } else { initEditButton(actionsLayout); initDeleteButton(actionsLayout); } } protected void initEditButton(VerticalLayout actionsLayout) { Button editButton = new Button(i18nManager.getMessage(Messages.USER_EDIT)); editButton.addStyleName(Reindeer.BUTTON_SMALL); actionsLayout.addComponent(editButton); editButton.addListener(new ClickListener() { public void buttonClick(ClickEvent event) { editingDetails = true; detailLayout.removeAllComponents(); populateGroupDetails(); } }); } protected void initSaveButton(VerticalLayout actionsLayout) { Button saveButton = new Button(i18nManager.getMessage(Messages.USER_SAVE)); saveButton.addStyleName(Reindeer.BUTTON_SMALL); actionsLayout.addComponent(saveButton); saveButton.addListener(new ClickListener() { public void buttonClick(ClickEvent event) { String originalName = group.getName(); // Update data if (nameTextField.getValue() != null) { group.setName(nameTextField.getValue().toString()); group.setType(typeCombobox.getValue().toString()); } identityService.saveGroup(group); // Update UI editingDetails = false; detailLayout.removeAllComponents(); populateGroupDetails(); // Refresh task list (only if name was changed) if ((originalName != null && !originalName.equals(group.getName())) || (originalName == null && group.getName() != null)) { groupPage.notifyGroupChanged(group.getId()); } } }); } protected void initDeleteButton(VerticalLayout actionsLayout) { Button deleteButton = new Button(i18nManager.getMessage(Messages.GROUP_DELETE)); deleteButton.addStyleName(Reindeer.BUTTON_SMALL); actionsLayout.addComponent(deleteButton); deleteButton.addListener(new ClickListener() { public void buttonClick(ClickEvent event) { ConfirmationDialogPopupWindow confirmPopup = new ConfirmationDialogPopupWindow( i18nManager.getMessage(Messages.GROUP_CONFIRM_DELETE, group.getId())); confirmPopup.addListener(new ConfirmationEventListener() { protected void rejected(ConfirmationEvent event) { } protected void confirmed(ConfirmationEvent event) { // Delete group from database identityService.deleteGroup(group.getId()); // Update ui groupPage.refreshSelectNext(); } }); ExplorerApp.get().getViewManager().showPopupWindow(confirmPopup); } }); } protected void initMembers() { HorizontalLayout membersHeader = new HorizontalLayout(); membersHeader.setSpacing(true); membersHeader.setWidth(100, UNITS_PERCENTAGE); membersHeader.addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK); addDetailComponent(membersHeader); initMembersTitle(membersHeader); initAddMembersButton(membersHeader); membersLayout = new HorizontalLayout(); membersLayout.setWidth(100, UNITS_PERCENTAGE); addDetailComponent(membersLayout); initMembersTable(); } protected void initMembersTitle(HorizontalLayout membersHeader) { Label usersHeader = new Label(i18nManager.getMessage(Messages.GROUP_HEADER_USERS)); usersHeader.addStyleName(ExplorerLayout.STYLE_H3); membersHeader.addComponent(usersHeader); } protected void initAddMembersButton(HorizontalLayout membersHeader) { Button addButton = new Button(); addButton.addStyleName(ExplorerLayout.STYLE_ADD); membersHeader.addComponent(addButton); membersHeader.setComponentAlignment(addButton, Alignment.MIDDLE_RIGHT); addButton.addListener(new ClickListener() { public void buttonClick(ClickEvent event) { final SelectUsersPopupWindow selectUsersPopup = new SelectUsersPopupWindow( i18nManager.getMessage(Messages.GROUP_SELECT_MEMBERS, group.getId()), true, false, getCurrentMembers()); ExplorerApp.get().getViewManager().showPopupWindow(selectUsersPopup); // Listen to submit events (that contain the selected users) selectUsersPopup.addListener(new SubmitEventListener() { protected void submitted(SubmitEvent event) { Collection<String> userIds = selectUsersPopup.getSelectedUserIds(); if (!userIds.isEmpty()) { for (String userId : userIds) { identityService.createMembership(userId, group.getId()); } notifyMembershipChanged(); } } protected void cancelled(SubmitEvent event) { } }); } }); } // Hacky - must be put in custom service protected List<String> getCurrentMembers() { List<User> users = identityService.createUserQuery().memberOfGroup(group.getId()).list(); List<String> userIds = new ArrayList<String>(); for (User user : users) { userIds.add(user.getId()); } return userIds; } protected void initMembersTable() { LazyLoadingQuery query = new GroupMembersQuery(group.getId(), this); if (query.size() > 0) { membersTable = new Table(); membersTable.setWidth(100, UNITS_PERCENTAGE); membersTable.setHeight(400, UNITS_PIXELS); membersTable.setEditable(false); membersTable.setSelectable(false); membersTable.setSortDisabled(false); LazyLoadingContainer container = new LazyLoadingContainer(query, 30); membersTable.setContainerDataSource(container); membersTable.addContainerProperty("id", Button.class, null); membersTable.addContainerProperty("firstName", String.class, null); membersTable.addContainerProperty("lastName", String.class, null); membersTable.addContainerProperty("email", String.class, null); membersTable.addContainerProperty("actions", Component.class, null); membersLayout.addComponent(membersTable); } else { noMembersTable = new Label(i18nManager.getMessage(Messages.GROUP_NO_MEMBERS)); membersLayout.addComponent(noMembersTable); } } public void notifyMembershipChanged() { membersLayout.removeAllComponents(); initMembersTable(); } }