Java tutorial
/* (c) 2016 Open Source Geospatial Foundation - all rights reserved * This code is licensed under the GPL 2.0 license, available at the root * application directory. */ package org.geogig.geoserver.web.security; import java.util.Arrays; import java.util.EnumMap; import java.util.List; import org.apache.wicket.AttributeModifier; import org.apache.wicket.Component; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.basic.MultiLineLabel; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.IModel; import org.apache.wicket.model.Model; import org.apache.wicket.request.resource.PackageResourceReference; import org.apache.wicket.util.file.File; import org.geogig.geoserver.config.LogEvent; import org.geogig.geoserver.config.LogEvent.Severity; import org.geogig.geoserver.config.LogStore; import org.geoserver.platform.GeoServerExtensions; import org.geoserver.web.GeoServerBasePage; import org.geoserver.web.wicket.GeoServerDataProvider; import org.geoserver.web.wicket.GeoServerDataProvider.Property; import org.geoserver.web.wicket.GeoServerTablePanel; import org.geoserver.web.wicket.Icon; import org.geoserver.web.wicket.SimpleAjaxLink; import org.geotools.feature.type.DateUtil; public class SecurityLogsPanel extends GeoServerTablePanel<LogEvent> { private static final long serialVersionUID = 5957961031378924960L; private static final EnumMap<Severity, PackageResourceReference> SEVERITY_ICONS = new EnumMap<>(Severity.class); static { final PackageResourceReference infoIcon = new PackageResourceReference(GeoServerBasePage.class, "img/icons/silk/information.png"); final PackageResourceReference successIcon = new PackageResourceReference(GeoServerBasePage.class, "img/icons/silk/accept.png"); final PackageResourceReference errorIcon = new PackageResourceReference(GeoServerBasePage.class, "img/icons/silk/error.png"); SEVERITY_ICONS.put(Severity.DEBUG, infoIcon); SEVERITY_ICONS.put(Severity.INFO, successIcon); SEVERITY_ICONS.put(Severity.ERROR, errorIcon); } private final ModalWindow popupWindow; /** * Only to be used by {@link #logStore()} */ private transient LogStore logStore; public SecurityLogsPanel(final String id) { super(id, new LogEventProvider(), false/* selectable */); super.setSelectable(false); super.setSortable(true); super.setFilterable(true); super.setFilterVisible(true); super.setPageable(true); popupWindow = new ModalWindow("popupWindow"); add(popupWindow); } private LogStore logStore() { if (this.logStore == null) { this.logStore = GeoServerExtensions.bean(LogStore.class); } return this.logStore; } @Override protected Component getComponentForProperty(final String id, @SuppressWarnings("rawtypes") IModel<LogEvent> itemModel, Property<LogEvent> property) { LogEvent item = (LogEvent) itemModel.getObject(); if (property == LogEventProvider.SEVERITY) { Severity severity = item.getSeverity(); PackageResourceReference iconRef = SEVERITY_ICONS.get(severity); return new Icon(id, iconRef); } if (property == LogEventProvider.REPOSITORY) { return repositoryLink(id, item); } if (property == LogEventProvider.TIMESTAMP) { return new Label(id, DateUtil.serializeDateTime(item.getTimestamp())); } if (property == LogEventProvider.MESSAGE) { return messageLink(id, item); } return new Label(id, String.valueOf(property.getPropertyValue(item))); } private Component messageLink(String id, LogEvent item) { IModel<String> messageModel = new Model<>(item.getMessage()); if (!item.getSeverity().equals(Severity.ERROR)) { return new Label(id, messageModel); } SimpleAjaxLink<LogEvent> link = new SimpleAjaxLink<LogEvent>(id, new Model<>(item), messageModel) { private static final long serialVersionUID = 1242472443848716943L; @Override public void onClick(AjaxRequestTarget target) { LogEvent event = getModelObject(); long eventId = event.getEventId(); LogStore logStore = logStore(); String stackTrace = logStore.getStackTrace(eventId); popupWindow.setInitialHeight(525); popupWindow.setInitialWidth(855); popupWindow.setContent(new StackTracePanel(popupWindow.getContentId(), stackTrace)); popupWindow.show(target); } }; return link; } public static class StackTracePanel extends Panel { private static final long serialVersionUID = 6428694990556424777L; public StackTracePanel(String id, String stackTrace) { super(id); MultiLineLabel stackTraceLabel = new MultiLineLabel("trace"); add(stackTraceLabel); if (stackTrace != null) { stackTraceLabel.setDefaultModel(new Model<>(stackTrace)); } } } private Component repositoryLink(String id, LogEvent item) { String repositoryURL = item.getRepositoryURL(); String name = new File(repositoryURL).getName(); Label label = new Label(id, name); label.add(AttributeModifier.replace("title", repositoryURL)); return label; } static class LogEventProvider extends GeoServerDataProvider<LogEvent> { private static final long serialVersionUID = 4883560661021761394L; // static final Property<LogEvent> EVENT_ID = new BeanProperty<LogEvent>("eventId", // "eventId"); static final Property<LogEvent> SEVERITY = new BeanProperty<>("severity", "severity"); static final Property<LogEvent> TIMESTAMP = new BeanProperty<>("timestamp", "timestamp"); static final Property<LogEvent> REPOSITORY = new BeanProperty<>("repository", "repositoryURL"); static final Property<LogEvent> USER = new BeanProperty<>("user", "user"); static final Property<LogEvent> MESSAGE = new BeanProperty<>("message", "message"); final List<Property<LogEvent>> PROPERTIES = Arrays.asList(/* EVENT_ID, */ SEVERITY, TIMESTAMP, REPOSITORY, USER, MESSAGE); // private transient List<LogEvent> items; private transient LogStore logStore; public LogEventProvider() { } private LogStore logStore() { if (logStore == null) { logStore = GeoServerExtensions.bean(LogStore.class); } return logStore; } @Override protected List<LogEvent> getItems() { // ensure logstore is set logStore(); List<LogEvent> items = logStore.getLogEntries(0, Integer.MAX_VALUE); return items; } @Override protected List<Property<LogEvent>> getProperties() { return PROPERTIES; } @Override public IModel<LogEvent> newModel(LogEvent object) { return new Model<>(object); } @Override public int fullSize() { // ensure logstore is set logStore(); return logStore.getFullSize(); } } }