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.repository; import static org.geoserver.catalog.CascadeRemovalReporter.ModificationType.DELETE; import static org.geoserver.catalog.CascadeRemovalReporter.ModificationType.GROUP_CHANGED; import java.util.Arrays; import java.util.Comparator; import java.util.Iterator; import java.util.List; import org.apache.commons.beanutils.BeanUtils; 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.extensions.markup.html.repeater.util.SortParam; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.IModel; import org.apache.wicket.request.resource.PackageResourceReference; import org.geogig.geoserver.config.RepositoryInfo; import org.geogig.geoserver.config.RepositoryManager; import org.geogig.geoserver.web.RepositoryEditPage; import org.geoserver.catalog.CascadeRemovalReporter; import org.geoserver.catalog.Catalog; import org.geoserver.catalog.CatalogInfo; import org.geoserver.catalog.LayerGroupInfo; import org.geoserver.catalog.LayerInfo; import org.geoserver.catalog.ResourceInfo; import org.geoserver.web.GeoServerApplication; import org.geoserver.web.GeoServerBasePage; import org.geoserver.web.wicket.GeoServerDataProvider; import org.geoserver.web.wicket.GeoServerDataProvider.Property; import org.geoserver.web.wicket.GeoServerDialog; import org.geoserver.web.wicket.GeoServerTablePanel; import org.geoserver.web.wicket.ImageAjaxLink; import org.geoserver.web.wicket.ParamResourceModel; import org.geoserver.web.wicket.SimpleAjaxLink; public class RepositoriesListPanel extends GeoServerTablePanel<RepositoryInfo> { private static final long serialVersionUID = 5957961031378924960L; private static final PackageResourceReference REMOVE_ICON = new PackageResourceReference( GeoServerBasePage.class, "img/icons/silk/delete.png"); private final ModalWindow popupWindow; private final GeoServerDialog dialog; public RepositoriesListPanel(final String id) { super(id, new RepositoryProvider(), false); // the popup window for messages popupWindow = new ModalWindow("popupWindow"); add(popupWindow); add(dialog = new GeoServerDialog("dialog")); } @SuppressWarnings({ "unchecked", "rawtypes" }) @Override protected Component getComponentForProperty(String id, IModel<RepositoryInfo> itemModel, Property<RepositoryInfo> property) { if (property == RepositoryProvider.NAME) { return nameLink(id, itemModel); } else if (property == RepositoryProvider.LOCATION) { String location = RepositoryProvider.LOCATION.getModel(itemModel).getObject().toString(); Label label = new Label(id, location); // label.add(new SimpleAttributeModifier("style", "word-wrap:break-word;")); return label; } else if (property == RepositoryProvider.REMOVELINK) { return removeLink(id, itemModel); } return null; } private Component nameLink(String id, IModel<RepositoryInfo> itemModel) { @SuppressWarnings("unchecked") IModel<?> nameModel = RepositoryProvider.NAME.getModel(itemModel); SimpleAjaxLink<RepositoryInfo> link = new SimpleAjaxLink<RepositoryInfo>(id, itemModel, nameModel) { private static final long serialVersionUID = -18292070541084372L; @Override public void onClick(AjaxRequestTarget target) { IModel<RepositoryInfo> model = getModel(); RepositoriesListPanel.this.setResponsePage(new RepositoryEditPage(model)); } }; return link; } protected Component removeLink(final String id, final IModel<RepositoryInfo> itemModel) { return new ImageAjaxLink(id, REMOVE_ICON) { private static final long serialVersionUID = -3061812114487970427L; private final IModel<RepositoryInfo> model = itemModel; @Override public void onClick(AjaxRequestTarget target) { GeoServerDialog dialog = RepositoriesListPanel.this.dialog; dialog.setTitle(new ParamResourceModel("RepositoriesListPanel.confirmRemoval.title", this)); dialog.showOkCancel(target, new GeoServerDialog.DialogDelegate() { private static final long serialVersionUID = -450822090965263894L; @Override protected Component getContents(String id) { return new ConfirmRemovePanel(id, model); } @Override protected boolean onSubmit(AjaxRequestTarget target, Component contents) { boolean closeConfirmDialog = true; final String repoId = model.getObject().getId(); RepositoryManager.get().delete(repoId); return closeConfirmDialog; } @Override public void onClose(AjaxRequestTarget target) { target.add(RepositoriesListPanel.this); } }); } }; } static class ConfirmRemovePanel extends Panel { private static final long serialVersionUID = 653769682579422516L; public ConfirmRemovePanel(String id, IModel<RepositoryInfo> repo) { super(id); final String repoName = repo.getObject().getRepoName(); add(new Label("aboutRemoveMsg", new ParamResourceModel( "RepositoriesListPanel$ConfirmRemovePanel.aboutRemove", this, repoName))); final String repoId = repo.getObject().getId(); final List<? extends CatalogInfo> stores; stores = RepositoryManager.get().findDataStores(repoId); // collect the objects that will be removed (besides the roots) Catalog catalog = GeoServerApplication.get().getCatalog(); CascadeRemovalReporter visitor = new CascadeRemovalReporter(catalog); for (CatalogInfo info : stores) { info.accept(visitor); } // visitor.removeAll(stores); // removed objects root (we show it if any removed object is on the list) WebMarkupContainer removed = new WebMarkupContainer("removedObjects"); List<CatalogInfo> cascaded = visitor.getObjects(CatalogInfo.class, DELETE); // remove the resources, they are cascaded, but won't be show in the UI for (Iterator<CatalogInfo> it = cascaded.iterator(); it.hasNext();) { CatalogInfo catalogInfo = it.next(); if (catalogInfo instanceof ResourceInfo) { it.remove(); } } removed.setVisible(!cascaded.isEmpty()); add(removed); // removed stores WebMarkupContainer str = new WebMarkupContainer("storesRemoved"); removed.add(str); str.setVisible(!stores.isEmpty()); str.add(new Label("stores", names(stores))); // removed layers WebMarkupContainer lar = new WebMarkupContainer("layersRemoved"); removed.add(lar); List<LayerInfo> layers = visitor.getObjects(LayerInfo.class, DELETE); if (layers.isEmpty()) lar.setVisible(false); lar.add(new Label("layers", names(layers))); // modified objects root (we show it if any modified object is on the list) WebMarkupContainer modified = new WebMarkupContainer("modifiedObjects"); modified.setVisible(visitor.getObjects(null, GROUP_CHANGED).size() > 0); add(modified); // groups modified WebMarkupContainer grm = new WebMarkupContainer("groupsModified"); modified.add(grm); List<LayerGroupInfo> groups = visitor.getObjects(LayerGroupInfo.class, GROUP_CHANGED); grm.setVisible(!groups.isEmpty()); grm.add(new Label("groups", names(groups))); } String names(List<? extends CatalogInfo> objects) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < objects.size(); i++) { sb.append(name(objects.get(i))); if (i < (objects.size() - 1)) { sb.append(", "); } } return sb.toString(); } String name(Object object) { try { return (String) BeanUtils.getProperty(object, "name"); } catch (Exception e) { throw new RuntimeException("A catalog object that does not have " + "a 'name' property has been used, this is unexpected", e); } } } static class RepositoryProvider extends GeoServerDataProvider<RepositoryInfo> { private static final long serialVersionUID = 4883560661021761394L; static final Property<RepositoryInfo> NAME = new BeanProperty<>("name", "repoName"); static final Property<RepositoryInfo> LOCATION = new BeanProperty<>("location", "location"); static final Property<RepositoryInfo> REMOVELINK = new AbstractProperty<RepositoryInfo>("remove") { private static final long serialVersionUID = 1L; @Override public Boolean getPropertyValue(RepositoryInfo item) { return Boolean.TRUE; } @Override public boolean isSearchable() { return false; } }; final List<Property<RepositoryInfo>> PROPERTIES = Arrays.asList(NAME, LOCATION, REMOVELINK); public RepositoryProvider() { } @Override protected List<RepositoryInfo> getItems() { return RepositoryManager.get().getAll(); } @Override protected List<Property<RepositoryInfo>> getProperties() { return PROPERTIES; } @Override protected Comparator<RepositoryInfo> getComparator(SortParam sort) { return super.getComparator(sort); } @Override public IModel<RepositoryInfo> newModel(RepositoryInfo object) { return new RepositoryInfoDetachableModel(object); } } }