Java tutorial
/** * Copyright 2013 Tommi S.E. Laukkanen * * 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.bubblecloud.ilves.ui.user.privilege; import com.vaadin.data.Property; import com.vaadin.shared.ui.MarginInfo; import com.vaadin.shared.ui.label.ContentMode; import com.vaadin.ui.*; import com.vaadin.ui.themes.Reindeer; import org.bubblecloud.ilves.cache.PrivilegeCache; import org.bubblecloud.ilves.component.flow.AbstractFlowlet; import org.bubblecloud.ilves.model.Company; import org.bubblecloud.ilves.model.Group; import org.bubblecloud.ilves.model.User; import org.bubblecloud.ilves.security.SecurityService; import org.bubblecloud.ilves.security.UserDao; import org.bubblecloud.ilves.site.Site; import javax.persistence.EntityManager; import java.util.List; /** * Privileges edit flowlet. * @author Tommi S.E. Laukkanen */ public class PrivilegesFlowlet extends AbstractFlowlet { private boolean dirty = false; private String dataLabel; private String dataId; private String[] privilegeKeys; /** The save button. */ private Button saveButton; /** The discard button. */ private Button discardButton; private VerticalLayout matrixLayout; private Label titleLabel; private GridLayout groupMatrix; private CheckBox[] groupCheckBoxes; private GridLayout userMatrix; private CheckBox[] userCheckBoxes; @Override public String getFlowletKey() { return "privileges"; } @Override protected void initialize() { final HorizontalLayout titleLayout = new HorizontalLayout(); titleLayout.setMargin(new MarginInfo(true, false, true, false)); titleLayout.setSpacing(true); final Embedded titleIcon = new Embedded(null, getSite().getIcon("view-icon-privileges")); titleIcon.setWidth(32, Unit.PIXELS); titleIcon.setHeight(32, Unit.PIXELS); titleLayout.addComponent(titleIcon); titleLabel = new Label("<h1>" + getSite().localize("view-privileges") + "</h1>", ContentMode.HTML); titleLayout.addComponent(titleLabel); matrixLayout = new VerticalLayout(); matrixLayout.setSpacing(true); matrixLayout.setMargin(false); final HorizontalLayout buttonLayout = new HorizontalLayout(); buttonLayout.setSpacing(true); saveButton = getSite().getButton("save"); buttonLayout.addComponent(saveButton); saveButton.addClickListener(new Button.ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final Button.ClickEvent event) { saveGroupMatrix(); saveUserMatrix(); PrivilegeCache.flush((Company) Site.getCurrent().getSiteContext().getObject(Company.class)); } }); discardButton = getSite().getButton("discard"); buttonLayout.addComponent(discardButton); discardButton.addClickListener(new Button.ClickListener() { /** Serial version UID. */ private static final long serialVersionUID = 1L; @Override public void buttonClick(final Button.ClickEvent event) { refreshGroupMatrix(); refreshUserMatrix(); } }); final CssLayout panel = new CssLayout(); panel.addComponent(titleLayout); panel.addComponent(matrixLayout); panel.addComponent(buttonLayout); setCompositionRoot(panel); } @Override public void enter() { } /** * Sets the data ID and privilege keys to show in the privilege groupMatrix. * @param dataLabel the data label * @param dataId the data ID * @param privilegeKey the privilege key */ public void edit(final String dataLabel, final String dataId, final String... privilegeKey) { this.dataLabel = dataLabel; this.dataId = dataId; this.privilegeKeys = privilegeKey; titleLabel.setValue("<h1>" + dataLabel + " " + getSite().localize("view-privileges") + "</h1>"); refreshGroupMatrix(); refreshUserMatrix(); } private void refreshGroupMatrix() { final EntityManager entityManager = Site.getCurrent().getSiteContext().getObject(EntityManager.class); final Company company = Site.getCurrent().getSiteContext().getObject(Company.class); if (groupMatrix != null) { matrixLayout.removeComponent(groupMatrix); } final List<Group> groups = UserDao.getGroups(entityManager, company); groupCheckBoxes = new CheckBox[privilegeKeys.length * groups.size()]; groupMatrix = new GridLayout(privilegeKeys.length + 1, groups.size() + 1); matrixLayout.addComponent(groupMatrix); for (int i = 0; i < groupCheckBoxes.length; i++) { groupCheckBoxes[i] = new CheckBox(); groupCheckBoxes[i].setImmediate(true); groupCheckBoxes[i].addValueChangeListener(new Property.ValueChangeListener() { @Override public void valueChange(Property.ValueChangeEvent event) { dirty = true; saveButton.setEnabled(true); discardButton.setEnabled(true); } }); } groupMatrix.addComponent(new Label("<b>" + getSite().localize("label-group") + "</b>", ContentMode.HTML), 0, 0); for (int j = 0; j < groups.size(); j++) { final Label label = new Label(groups.get(j).getDescription()); label.setWidth(200, Unit.PIXELS); groupMatrix.addComponent(label, 0, j + 1); } for (int i = 0; i < privilegeKeys.length; i++) { final Label label = new Label("<b>" + getSite().localize("privilege-" + privilegeKeys[i]) + "</b>", ContentMode.HTML); label.setWidth(50, Unit.PIXELS); groupMatrix.addComponent(label, i + 1, 0); } for (int i = 0; i < privilegeKeys.length; i++) { for (int j = 0; j < groups.size(); j++) { final int checkBoxIndex = i + j * privilegeKeys.length; groupMatrix.addComponent(groupCheckBoxes[checkBoxIndex], i + 1, j + 1); groupCheckBoxes[checkBoxIndex].setValue( UserDao.hasGroupPrivilege(entityManager, groups.get(j), privilegeKeys[i], dataId)); } } dirty = false; saveButton.setEnabled(false); discardButton.setEnabled(false); } private void saveGroupMatrix() { final EntityManager entityManager = Site.getCurrent().getSiteContext().getObject(EntityManager.class); final Company company = Site.getCurrent().getSiteContext().getObject(Company.class); final List<Group> groups = UserDao.getGroups(entityManager, company); for (int i = 0; i < privilegeKeys.length; i++) { for (int j = 0; j < groups.size(); j++) { final int checkBoxIndex = i + j * privilegeKeys.length; final boolean privileged = groupCheckBoxes[checkBoxIndex].getValue(); final boolean privilegedInDatabase = UserDao.hasGroupPrivilege(entityManager, groups.get(j), privilegeKeys[i], dataId); if (privileged && !privilegedInDatabase) { SecurityService.addGroupPrivilege(getSite().getSiteContext(), groups.get(j), privilegeKeys[i], null, dataId, null); } else if (!privileged && privilegedInDatabase) { SecurityService.removeGroupPrivilege(getSite().getSiteContext(), groups.get(j), privilegeKeys[i], null, dataId, null); } } } refreshGroupMatrix(); } private void refreshUserMatrix() { final EntityManager entityManager = Site.getCurrent().getSiteContext().getObject(EntityManager.class); final Company company = Site.getCurrent().getSiteContext().getObject(Company.class); if (userMatrix != null) { matrixLayout.removeComponent(userMatrix); } final List<User> users = UserDao.getUsers(entityManager, company); userCheckBoxes = new CheckBox[privilegeKeys.length * users.size()]; userMatrix = new GridLayout(privilegeKeys.length + 1, users.size() + 1); matrixLayout.addComponent(userMatrix); for (int i = 0; i < userCheckBoxes.length; i++) { userCheckBoxes[i] = new CheckBox(); userCheckBoxes[i].setImmediate(true); userCheckBoxes[i].addValueChangeListener(new Property.ValueChangeListener() { @Override public void valueChange(Property.ValueChangeEvent event) { dirty = true; saveButton.setEnabled(true); discardButton.setEnabled(true); } }); } userMatrix.addComponent(new Label("<b>" + getSite().localize("label-user") + "</b>", ContentMode.HTML), 0, 0); for (int j = 0; j < users.size(); j++) { final Label label = new Label(users.get(j).getLastName() + " " + users.get(j).getFirstName()); label.setWidth(200, Unit.PIXELS); userMatrix.addComponent(label, 0, j + 1); } for (int i = 0; i < privilegeKeys.length; i++) { final Label label = new Label("<b>" + getSite().localize("privilege-" + privilegeKeys[i]) + "</b>", ContentMode.HTML); label.setWidth(50, Unit.PIXELS); userMatrix.addComponent(label, i + 1, 0); } for (int i = 0; i < privilegeKeys.length; i++) { for (int j = 0; j < users.size(); j++) { final int checkBoxIndex = i + j * privilegeKeys.length; userMatrix.addComponent(userCheckBoxes[checkBoxIndex], i + 1, j + 1); userCheckBoxes[checkBoxIndex] .setValue(UserDao.hasUserPrivilege(entityManager, users.get(j), privilegeKeys[i], dataId)); } } dirty = false; saveButton.setEnabled(false); discardButton.setEnabled(false); } private void saveUserMatrix() { final EntityManager entityManager = Site.getCurrent().getSiteContext().getObject(EntityManager.class); final Company company = Site.getCurrent().getSiteContext().getObject(Company.class); final List<User> users = UserDao.getUsers(entityManager, company); for (int i = 0; i < privilegeKeys.length; i++) { for (int j = 0; j < users.size(); j++) { final int checkBoxIndex = i + j * privilegeKeys.length; final boolean privileged = userCheckBoxes[checkBoxIndex].getValue(); final boolean privilegedInDatabase = UserDao.hasUserPrivilege(entityManager, users.get(j), privilegeKeys[i], dataId); if (privileged && !privilegedInDatabase) { SecurityService.addUserPrivilege(getSite().getSiteContext(), users.get(j), privilegeKeys[i], null, dataId, null); } else if (!privileged && privilegedInDatabase) { SecurityService.removeUserPrivilege(getSite().getSiteContext(), users.get(j), privilegeKeys[i], null, dataId, null); } } } refreshUserMatrix(); } @Override protected boolean isValid() { return true; } @Override public boolean isDirty() { return dirty; } }