Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.syncope.client.console.panels; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Set; import org.apache.commons.lang3.StringUtils; import org.apache.commons.lang3.tuple.Pair; import org.apache.syncope.client.console.commons.Constants; import org.apache.syncope.client.console.panels.SelectedEventsPanel.EventSelectionChanged; import org.apache.syncope.client.console.panels.SelectedEventsPanel.InspectSelectedEvent; import org.apache.syncope.client.console.wicket.markup.html.form.ActionLink; import org.apache.syncope.client.console.wicket.markup.html.form.ActionLinksPanel; import org.apache.syncope.client.console.wicket.markup.html.form.AjaxDropDownChoicePanel; import org.apache.syncope.client.console.wicket.markup.html.form.AjaxTextFieldPanel; import org.apache.syncope.common.lib.to.EventCategoryTO; import org.apache.syncope.common.lib.types.AuditElements; import org.apache.syncope.common.lib.types.AuditElements.EventCategoryType; import org.apache.syncope.common.lib.types.AuditLoggerName; import org.apache.wicket.PageReference; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior; import org.apache.wicket.authroles.authorization.strategies.role.metadata.MetaDataRoleAuthorizationStrategy; import org.apache.wicket.event.Broadcast; import org.apache.wicket.event.IEvent; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.IChoiceRenderer; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.IModel; import org.apache.wicket.model.Model; import org.apache.wicket.model.PropertyModel; import org.apache.wicket.model.ResourceModel; public abstract class LoggerCategoryPanel extends Panel { private static final long serialVersionUID = 6429053774964787734L; private final List<EventCategoryTO> eventCategoryTOs; private final EventCategoryTO eventCategoryTO = new EventCategoryTO(); private final WebMarkupContainer categoryContainer; private final WebMarkupContainer eventsContainer; private final SelectedEventsPanel selectedEventsPanel; private final AjaxDropDownChoicePanel<EventCategoryType> type; private final AjaxDropDownChoicePanel<String> category; private final AjaxDropDownChoicePanel<String> subcategory; private final AjaxTextFieldPanel custom; private final ActionLinksPanel actionPanel; private final IModel<List<String>> model; public LoggerCategoryPanel(final String id, final List<EventCategoryTO> eventCategoryTOs, final IModel<List<String>> model, final PageReference pageReference, final String pageId) { super(id); this.model = model; selectedEventsPanel = new SelectedEventsPanel("selectedEventsPanel", model); add(selectedEventsPanel); this.eventCategoryTOs = eventCategoryTOs; categoryContainer = new WebMarkupContainer("categoryContainer"); categoryContainer.setOutputMarkupId(true); add(categoryContainer); eventsContainer = new WebMarkupContainer("eventsContainer"); eventsContainer.setOutputMarkupId(true); add(eventsContainer); authorizeList(); authorizeChanges(); categoryContainer.add(new Label("typeLabel", new ResourceModel("type", "type"))); type = new AjaxDropDownChoicePanel<EventCategoryType>("type", "type", new PropertyModel<EventCategoryType>(eventCategoryTO, "type"), false); type.setChoices(Arrays.asList(EventCategoryType.values())); type.setStyleSheet("ui-widget-content ui-corner-all"); type.setChoiceRenderer(new IChoiceRenderer<EventCategoryType>() { private static final long serialVersionUID = 2317134950949778735L; @Override public String getDisplayValue(final EventCategoryType eventCategoryType) { return eventCategoryType.name(); } @Override public String getIdValue(final EventCategoryType eventCategoryType, final int i) { return eventCategoryType.name(); } }); categoryContainer.add(type); type.getField().add(new AjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) { private static final long serialVersionUID = -1107858522700306810L; @Override protected void onUpdate(final AjaxRequestTarget target) { send(LoggerCategoryPanel.this, Broadcast.EXACT, new ChangeCategoryEvent(target, type)); } }); categoryContainer.add(new Label("categoryLabel", new ResourceModel("category", "category"))); category = new AjaxDropDownChoicePanel<String>("category", "category", new PropertyModel<String>(eventCategoryTO, "category"), false); category.setChoices(filter(eventCategoryTOs, type.getModelObject())); category.setStyleSheet("ui-widget-content ui-corner-all"); categoryContainer.add(category); category.getField().add(new AjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) { private static final long serialVersionUID = -1107858522700306811L; @Override protected void onUpdate(final AjaxRequestTarget target) { send(LoggerCategoryPanel.this, Broadcast.EXACT, new ChangeCategoryEvent(target, category)); } }); categoryContainer.add(new Label("subcategoryLabel", new ResourceModel("subcategory", "subcategory"))); subcategory = new AjaxDropDownChoicePanel<String>("subcategory", "subcategory", new PropertyModel<String>(eventCategoryTO, "subcategory"), false); subcategory.setChoices(filter(eventCategoryTOs, type.getModelObject(), category.getModelObject())); subcategory.setStyleSheet("ui-widget-content ui-corner-all"); categoryContainer.add(subcategory); subcategory.getField().add(new AjaxFormComponentUpdatingBehavior(Constants.ON_CHANGE) { private static final long serialVersionUID = -1107858522700306812L; @Override protected void onUpdate(final AjaxRequestTarget target) { send(LoggerCategoryPanel.this, Broadcast.EXACT, new ChangeCategoryEvent(target, subcategory)); } }); categoryContainer.add(new Label("customLabel", new ResourceModel("custom", "custom")).setVisible(false)); custom = new AjaxTextFieldPanel("custom", "custom", new Model<String>(null)); custom.setStyleSheet("ui-widget-content ui-corner-all short_fixedsize"); custom.setVisible(false); custom.setEnabled(false); categoryContainer.add(custom); actionPanel = new ActionLinksPanel("customActions", new Model(), pageReference); categoryContainer.add(actionPanel); actionPanel.add(new ActionLink() { private static final long serialVersionUID = -3722207913631435501L; @Override public void onClick(final AjaxRequestTarget target) { if (StringUtils.isNotBlank(custom.getModelObject())) { final Pair<EventCategoryTO, AuditElements.Result> parsed = AuditLoggerName .parseEventCategory(custom.getModelObject()); final String eventString = AuditLoggerName.buildEvent(parsed.getKey().getType(), null, null, parsed.getKey().getEvents().isEmpty() ? StringUtils.EMPTY : parsed.getKey().getEvents().iterator().next(), parsed.getValue()); custom.setModelObject(StringUtils.EMPTY); send(LoggerCategoryPanel.this.getPage(), Broadcast.BREADTH, new EventSelectionChanged(target, Collections.<String>singleton(eventString), Collections.<String>emptySet())); target.add(categoryContainer); } } }, ActionLink.ActionType.CREATE, pageId, true); actionPanel.add(new ActionLink() { private static final long serialVersionUID = -3722207913631435502L; @Override public void onClick(final AjaxRequestTarget target) { if (StringUtils.isNotBlank(custom.getModelObject())) { Pair<EventCategoryTO, AuditElements.Result> parsed = AuditLoggerName .parseEventCategory(custom.getModelObject()); String eventString = AuditLoggerName.buildEvent(parsed.getKey().getType(), null, null, parsed.getKey().getEvents().isEmpty() ? StringUtils.EMPTY : parsed.getKey().getEvents().iterator().next(), parsed.getValue()); custom.setModelObject(StringUtils.EMPTY); send(LoggerCategoryPanel.this.getPage(), Broadcast.BREADTH, new EventSelectionChanged(target, Collections.<String>emptySet(), Collections.<String>singleton(eventString))); target.add(categoryContainer); } } }, ActionLink.ActionType.DELETE, pageId, true); actionPanel.setVisible(false); actionPanel.setEnabled(false); eventsContainer.add(new EventSelectionPanel("eventsPanel", eventCategoryTO, model) { private static final long serialVersionUID = 3513194801190026082L; @Override protected void onEventAction(final IEvent<?> event) { LoggerCategoryPanel.this.onEventAction(event); } }); } private List<String> filter(final List<EventCategoryTO> eventCategoryTOs, final EventCategoryType type) { final Set<String> res = new HashSet<String>(); for (EventCategoryTO eventCategory : eventCategoryTOs) { if (type == eventCategory.getType() && StringUtils.isNotEmpty(eventCategory.getCategory())) { res.add(eventCategory.getCategory()); } } final List<String> filtered = new ArrayList<String>(res); Collections.sort(filtered); return filtered; } private List<String> filter(final List<EventCategoryTO> eventCategoryTOs, final EventCategoryType type, final String category) { final Set<String> res = new HashSet<String>(); for (EventCategoryTO eventCategory : eventCategoryTOs) { if (type == eventCategory.getType() && StringUtils.equals(category, eventCategory.getCategory()) && StringUtils.isNotEmpty(eventCategory.getSubcategory())) { res.add(eventCategory.getSubcategory()); } } final List<String> filtered = new ArrayList<String>(res); Collections.sort(filtered); return filtered; } @Override @SuppressWarnings("unchecked") public void onEvent(final IEvent<?> event) { if (event.getPayload() instanceof ChangeCategoryEvent) { // update objects .... eventCategoryTO.getEvents().clear(); final ChangeCategoryEvent change = (ChangeCategoryEvent) event.getPayload(); final Panel changedPanel = change.getChangedPanel(); if ("type".equals(changedPanel.getId())) { eventCategoryTO.setType(type.getModelObject()); eventCategoryTO.setCategory(null); eventCategoryTO.setSubcategory(null); if (type.getModelObject() == EventCategoryType.CUSTOM) { category.setChoices(Collections.<String>emptyList()); subcategory.setChoices(Collections.<String>emptyList()); category.setEnabled(false); subcategory.setEnabled(false); custom.setVisible(true); custom.setEnabled(true); actionPanel.setVisible(true); actionPanel.setEnabled(true); } else { category.setChoices(filter(eventCategoryTOs, type.getModelObject())); subcategory.setChoices(Collections.<String>emptyList()); category.setEnabled(true); subcategory.setEnabled(true); custom.setVisible(false); custom.setEnabled(false); actionPanel.setVisible(false); actionPanel.setEnabled(false); } change.getTarget().add(categoryContainer); } else if ("category".equals(changedPanel.getId())) { subcategory.setChoices(filter(eventCategoryTOs, type.getModelObject(), category.getModelObject())); eventCategoryTO.setCategory(category.getModelObject()); eventCategoryTO.setSubcategory(null); change.getTarget().add(categoryContainer); } else { eventCategoryTO.setSubcategory(subcategory.getModelObject()); } updateEventsContainer(change.getTarget()); } else if (event.getPayload() instanceof InspectSelectedEvent) { // update objects .... eventCategoryTO.getEvents().clear(); InspectSelectedEvent inspectSelectedEvent = (InspectSelectedEvent) event.getPayload(); Pair<EventCategoryTO, AuditElements.Result> categoryEvent = AuditLoggerName .parseEventCategory(inspectSelectedEvent.getEvent()); eventCategoryTO.setType(categoryEvent.getKey().getType()); category.setChoices(filter(eventCategoryTOs, type.getModelObject())); eventCategoryTO.setCategory(categoryEvent.getKey().getCategory()); subcategory.setChoices(filter(eventCategoryTOs, type.getModelObject(), category.getModelObject())); eventCategoryTO.setSubcategory(categoryEvent.getKey().getSubcategory()); if (categoryEvent.getKey().getType() == EventCategoryType.CUSTOM) { custom.setModelObject( AuditLoggerName.buildEvent(categoryEvent.getKey().getType(), categoryEvent.getKey().getCategory(), categoryEvent.getKey().getSubcategory(), categoryEvent.getKey().getEvents().isEmpty() ? StringUtils.EMPTY : categoryEvent.getKey().getEvents().iterator().next(), categoryEvent.getValue())); category.setEnabled(false); subcategory.setEnabled(false); custom.setVisible(true); custom.setEnabled(true); actionPanel.setVisible(true); actionPanel.setEnabled(true); } else { category.setEnabled(true); subcategory.setEnabled(true); custom.setVisible(false); custom.setEnabled(false); actionPanel.setVisible(false); actionPanel.setEnabled(false); } inspectSelectedEvent.getTarget().add(categoryContainer); updateEventsContainer(inspectSelectedEvent.getTarget()); } } private void setEvents() { final Iterator<EventCategoryTO> itor = eventCategoryTOs.iterator(); while (itor.hasNext() && eventCategoryTO.getEvents().isEmpty()) { final EventCategoryTO eventCategory = itor.next(); if (eventCategory.getType() == eventCategoryTO.getType() && StringUtils.equals(eventCategory.getCategory(), eventCategoryTO.getCategory()) && StringUtils.equals(eventCategory.getSubcategory(), eventCategoryTO.getSubcategory())) { eventCategoryTO.getEvents().addAll(eventCategory.getEvents()); } } } private class ChangeCategoryEvent { private final AjaxRequestTarget target; private final Panel changedPanel; public ChangeCategoryEvent(final AjaxRequestTarget target, final Panel changedPanel) { this.target = target; this.changedPanel = changedPanel; } public AjaxRequestTarget getTarget() { return target; } public Panel getChangedPanel() { return changedPanel; } } /** * To be extended in order to add actions on events. * * @param event event. */ protected void onEventAction(final IEvent<?> event) { // nothing by default } private void authorizeList() { for (String role : getListRoles()) { MetaDataRoleAuthorizationStrategy.authorize(selectedEventsPanel, RENDER, role); } } private void authorizeChanges() { for (String role : getChangeRoles()) { MetaDataRoleAuthorizationStrategy.authorize(categoryContainer, RENDER, role); MetaDataRoleAuthorizationStrategy.authorize(eventsContainer, RENDER, role); } } private void updateEventsContainer(final AjaxRequestTarget target) { setEvents(); eventsContainer.addOrReplace(new EventSelectionPanel("eventsPanel", eventCategoryTO, model) { private static final long serialVersionUID = 3513194801190026082L; @Override public void onEventAction(final IEvent<?> event) { LoggerCategoryPanel.this.onEventAction(event); } }); target.add(eventsContainer); } protected abstract String[] getListRoles(); protected abstract String[] getChangeRoles(); }