Java tutorial
/* * Copyright (c) 2012 Data Harmonisation Panel * * All rights reserved. This program and the accompanying materials are made * available under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution. If not, see <http://www.gnu.org/licenses/>. * * Contributors: * HUMBOLDT EU Integrated Project #030962 * Data Harmonisation Panel <http://www.dhpanel.eu> */ package eu.esdihumboldt.hale.ui.function.common; import java.util.ArrayList; import java.util.List; import org.eclipse.jface.action.ToolBarManager; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITreeSelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TreePath; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.PlatformUI; import eu.esdihumboldt.hale.common.align.model.ChildContext; import eu.esdihumboldt.hale.common.align.model.EntityDefinition; import eu.esdihumboldt.hale.common.align.model.impl.PropertyEntityDefinition; import eu.esdihumboldt.hale.common.align.model.impl.TypeEntityDefinition; import eu.esdihumboldt.hale.common.schema.SchemaSpaceID; import eu.esdihumboldt.hale.common.schema.model.ChildDefinition; import eu.esdihumboldt.hale.common.schema.model.PropertyDefinition; import eu.esdihumboldt.hale.common.schema.model.TypeDefinition; import eu.esdihumboldt.hale.ui.common.definition.viewer.StyledDefinitionLabelProvider; import eu.esdihumboldt.hale.ui.internal.HALEUIPlugin; import eu.esdihumboldt.hale.ui.service.entity.EntityDefinitionService; import eu.esdihumboldt.hale.ui.service.entity.util.ContentProviderAction; import eu.esdihumboldt.hale.ui.service.entity.util.EntityTypeIndexContentProvider; import eu.esdihumboldt.hale.ui.service.entity.util.EntityTypeIndexHierarchy; import eu.esdihumboldt.hale.ui.service.entity.util.EntityTypePropertyContentProvider; import eu.esdihumboldt.hale.ui.service.schema.SchemaService; import eu.esdihumboldt.hale.ui.util.viewer.tree.TreePathProviderAdapter; /** * Dialog for selecting a {@link PropertyEntityDefinition}. * * @author Simon Templer */ public class PropertyEntityDialog extends EntityDialog { private final TypeEntityDefinition parentType; private TreePathProviderAdapter flatRelevantProvider; private TreePathProviderAdapter hierarchicalRelevantProvider; private TreePathProviderAdapter flatAllProvider; private TreePathProviderAdapter hierarchicalAllProvider; /** * Create a property entity dialog * * @param parentShell the parent shell * @param ssid the schema space * @param parentType the parent type for the property to be selected, may be * <code>null</code> if any type is allowed * @param title the dialog title * @param initialSelection the entity definition to select initially (if * possible), may be <code>null</code> */ public PropertyEntityDialog(Shell parentShell, SchemaSpaceID ssid, TypeEntityDefinition parentType, String title, EntityDefinition initialSelection) { super(parentShell, ssid, title, initialSelection); this.parentType = parentType; } /** * @see EntityDialog#setupViewer(TreeViewer, EntityDefinition) */ @Override protected void setupViewer(TreeViewer viewer, EntityDefinition initialSelection) { viewer.setLabelProvider(new StyledDefinitionLabelProvider()); EntityDefinitionService entityDefinitionService = (EntityDefinitionService) PlatformUI.getWorkbench() .getService(EntityDefinitionService.class); if (parentType != null) { viewer.setContentProvider(new TreePathProviderAdapter( new EntityTypePropertyContentProvider(entityDefinitionService, ssid))); viewer.setInput(parentType); } else { flatRelevantProvider = new TreePathProviderAdapter( new EntityTypeIndexContentProvider(entityDefinitionService, ssid, true, false)); hierarchicalRelevantProvider = new TreePathProviderAdapter( new EntityTypeIndexHierarchy(entityDefinitionService, ssid, true, false)); flatAllProvider = new TreePathProviderAdapter( new EntityTypeIndexContentProvider(entityDefinitionService, ssid, false, false)); hierarchicalAllProvider = new TreePathProviderAdapter( new EntityTypeIndexHierarchy(entityDefinitionService, ssid, false, false)); viewer.setContentProvider(flatRelevantProvider); SchemaService ss = (SchemaService) PlatformUI.getWorkbench().getService(SchemaService.class); viewer.setInput(ss.getSchemas(ssid)); } if (initialSelection != null) { viewer.setSelection(new StructuredSelection(initialSelection)); } } /** * @see EntityDialog#getObjectFromSelection(ISelection) */ @Override protected EntityDefinition getObjectFromSelection(ISelection selection) { if (!selection.isEmpty() && selection instanceof IStructuredSelection) { Object element = ((IStructuredSelection) selection).getFirstElement(); if (element instanceof EntityDefinition) { return (EntityDefinition) element; } } if (!selection.isEmpty() && selection instanceof ITreeSelection) { // create property definition w/ default contexts TreePath path = ((ITreeSelection) selection).getPaths()[0]; // get parent type TypeDefinition type = ((PropertyDefinition) path.getFirstSegment()).getParentType(); // determine definition path List<ChildContext> defPath = new ArrayList<ChildContext>(); for (int i = 0; i < path.getSegmentCount(); i++) { defPath.add(new ChildContext((ChildDefinition<?>) path.getSegment(i))); } // TODO check if property entity definition is applicable? return new PropertyEntityDefinition(type, defPath, ssid, parentType.getFilter()); } return null; } /** * @see eu.esdihumboldt.hale.ui.function.common.EntityDialog#addToolBarActions(org.eclipse.jface.action.ToolBarManager) */ @Override protected void addToolBarActions(ToolBarManager manager) { // parent type is set, so do not offer other content providers if (parentType != null) return; // MappingRelevant types only, flat manager.add(new ContentProviderAction("Mapping relevant types as list", HALEUIPlugin.getImageDescriptor("icons/flat_relevant.png"), getViewer(), flatRelevantProvider, true)); // MappingRelevant types only, hierarchical manager.add(new ContentProviderAction("Mapping relevant types hierarchical", HALEUIPlugin.getImageDescriptor("icons/hierarchical_relevant.png"), getViewer(), hierarchicalRelevantProvider, false)); // Mappable types, flat manager.add(new ContentProviderAction("All types as list", HALEUIPlugin.getImageDescriptor("icons/flat_all.png"), getViewer(), flatAllProvider, false)); // Mappable types, hierarchical manager.add(new ContentProviderAction("All types hierarchical", HALEUIPlugin.getImageDescriptor("icons/hierarchical_all.png"), getViewer(), hierarchicalAllProvider, false)); } }