Java tutorial
/** * Copyright 2012 Universitat Pompeu Fabra. * * 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.onexus.website.api.pages.search.boxes; import org.apache.wicket.AttributeModifier; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.panel.EmptyPanel; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.markup.repeater.RepeatingView; import org.apache.wicket.util.string.Strings; import org.onexus.collection.api.ICollectionManager; import org.onexus.collection.api.IEntity; import org.onexus.collection.api.IEntityTable; import org.onexus.collection.api.query.Contains; import org.onexus.collection.api.query.Equal; import org.onexus.collection.api.query.In; import org.onexus.collection.api.query.OrderBy; import org.onexus.collection.api.query.Query; import org.onexus.collection.api.utils.EntityIterator; import org.onexus.collection.api.utils.QueryUtils; import org.onexus.resource.api.ORI; import org.onexus.website.api.pages.browser.IEntitySelection; import org.onexus.website.api.pages.browser.SingleEntitySelection; import org.onexus.website.api.pages.search.FigureConfig; import org.onexus.website.api.pages.search.SearchLink; import org.onexus.website.api.pages.search.SearchPageStatus; import org.onexus.website.api.pages.search.SearchType; import org.onexus.website.api.pages.search.figures.FigureBox; import org.onexus.website.api.pages.search.figures.LinksBox; import org.onexus.website.api.widgets.selection.FilterConfig; import org.onexus.website.api.widgets.selection.MultipleEntitySelection; import javax.inject.Inject; import java.util.List; import java.util.Set; public class BoxesPanel extends Panel { @Inject private ICollectionManager collectionManager; private boolean quickList; public BoxesPanel(String id, SearchPageStatus status, ORI baseUri, FilterConfig filterConfig) { super(id); setMarkupId("boxes"); setOutputMarkupId(true); add(new AttributeModifier("class", "accordion")); RepeatingView boxes = new RepeatingView("boxes"); SearchType type = status.getType(); if (Strings.isEmpty(status.getSearch())) { // Nothing selected add(new EmptyPanel("disambiguation").setVisible(false)); List<SearchLink> links = type.getFixLinks(); if (links != null && !links.isEmpty()) { boxes.add(new MainLinksBox(boxes.newChildId(), links)); } if (type.getFigures() != null) { for (FigureConfig figure : type.getFigures()) { if (!Strings.isEmpty(figure.getVisible()) && "NONE".equalsIgnoreCase(figure.getVisible())) { boxes.add(new FigureBox(boxes.newChildId(), figure, baseUri, null)); } } } } else { ORI collectionUri = type.getCollection().toAbsolute(baseUri); if (filterConfig == null && status.getSearch().indexOf(',') == -1) { // Single entity selection IEntityTable table = getSingleEntityTable(collectionManager, type, collectionUri, baseUri, status.getSearch(), true); boolean found; if (table.next()) { found = true; } else { // If we don't found an exact match, look for a similar one table.close(); table = getSingleEntityTable(collectionManager, type, collectionUri, baseUri, status.getSearch(), false); found = table.next(); } if (found) { IEntity entity = table.getEntity(collectionUri); boxes.add(new LinksBox(boxes.newChildId(), status, entity)); if (type.getFigures() != null) { for (FigureConfig figure : type.getFigures()) { if (Strings.isEmpty(figure.getVisible()) || "SINGLE".equalsIgnoreCase(figure.getVisible())) { boxes.add(new FigureBox(boxes.newChildId(), figure, baseUri, new SingleEntitySelection(entity))); } } } if (table.next()) { add(new DisambiguationPanel("disambiguation", table, collectionUri) { @Override protected void onSelection(AjaxRequestTarget target, String newSearch) { onDisambiguation(target, newSearch); } }); } else { add(new EmptyPanel("disambiguation").setVisible(false)); } } else { add(new EmptyPanel("disambiguation").setVisible(false)); boxes.add(new Label(boxes.newChildId(), "No results found") .add(new AttributeModifier("class", "alert"))); } table.close(); } else { // Multiple entities selection add(new EmptyPanel("disambiguation").setVisible(false)); quickList = false; if (filterConfig == null) { quickList = true; filterConfig = new FilterConfig(status.getSearch()); filterConfig.setCollection(collectionUri); filterConfig.setDefine("fc='" + collectionUri + "'"); String mainKey = type.getKeysList().get(0); In where = new In("fc", mainKey); String[] values = status.getSearch().split(","); for (String value : values) { where.addValue(value.trim()); } filterConfig.setWhere(where.toString()); } IEntityTable table = getMultipleEntityTable(collectionManager, type, collectionUri, baseUri, filterConfig); boxes.add(new LinksBox(boxes.newChildId(), status, collectionUri, filterConfig, new EntityIterator(table, collectionUri)) { @Override protected void onNotFound(Set<String> valuesNotFound) { if (valuesNotFound.isEmpty() || !quickList) { BoxesPanel.this.addOrReplace(new EmptyPanel("disambiguation").setVisible(false)); } else { BoxesPanel.this.addOrReplace(new DisambiguationPanel("disambiguation", valuesNotFound) { @Override protected void onSelection(AjaxRequestTarget target, String newSearch) { onDisambiguation(target, newSearch); } }); } } }); if (type.getFigures() != null) { for (FigureConfig figure : type.getFigures()) { if (Strings.isEmpty(figure.getVisible()) || "LIST".equalsIgnoreCase(figure.getVisible())) { boxes.add(new FigureBox(boxes.newChildId(), figure, baseUri, new MultipleEntitySelection(filterConfig))); } } } } } add(boxes); } protected void onDisambiguation(AjaxRequestTarget target, String query) { } private static IEntityTable getMultipleEntityTable(ICollectionManager collectionManager, SearchType type, ORI collectionUri, ORI baseOri, FilterConfig filter) { Query query = new Query(); query.setOn(baseOri); String collectionAlias = QueryUtils.newCollectionAlias(query, collectionUri); query.setFrom(collectionAlias); query.addSelect(collectionAlias, null); IEntitySelection selection = new MultipleEntitySelection(filter); query.setWhere(selection.buildFilter(query)); List<String> fieldList = type.getFieldsList(); query.addOrderBy(new OrderBy(collectionAlias, fieldList.get(0))); return collectionManager.load(query); } public static IEntityTable getSingleEntityTable(ICollectionManager collectionManager, SearchType type, ORI collectionUri, ORI baseUri, String search, boolean equal) { Query query = new Query(); query.setOn(baseUri); String collectionAlias = QueryUtils.newCollectionAlias(query, collectionUri); query.setFrom(collectionAlias); List<String> fieldList = type.getFieldsList(); query.addSelect(collectionAlias, null); for (String field : fieldList) { if (equal) { QueryUtils.or(query, new Equal(collectionAlias, field, search)); } else { QueryUtils.or(query, new Contains(collectionAlias, field, search)); } } query.addOrderBy(new OrderBy(collectionAlias, fieldList.get(0))); query.setCount(20); return collectionManager.load(query); } }