/*
* Copyright (c) 2006, 2009 Borland Software Corporation
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*/
package org.eclipse.uml2.diagram.clazz.parser.dependency;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.common.core.command.IdentityCommand;
import org.eclipse.gmf.runtime.common.core.command.UnexecutableCommand;
import org.eclipse.gmf.runtime.common.ui.services.parser.IParserEditStatus;
import org.eclipse.gmf.runtime.common.ui.services.parser.ParserEditStatus;
import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.LabelEditPart;
import org.eclipse.gmf.runtime.emf.ui.services.parser.ISemanticParser;
import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.PlatformUI;
import org.eclipse.uml2.diagram.clazz.edit.commands.ChangeDependencyTypeCommand;
import org.eclipse.uml2.diagram.clazz.part.CustomMessages;
import org.eclipse.uml2.diagram.parser.assist.FixedSetCompletionProcessor;
import org.eclipse.uml2.uml.Abstraction;
import org.eclipse.uml2.uml.Dependency;
import org.eclipse.uml2.uml.Substitution;
import org.eclipse.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.Usage;
import org.eclipse.uml2.uml.util.UMLSwitch;
public class DependencyTypeParser implements ISemanticParser {
private final static String NOT_APPLICABLE = CustomMessages.DependencyTypeParser_not_applicable;
private final static String LABEL_DEPENDENCY_SHORT = ""; //$NON-NLS-1$
private final static String LABEL_DEPENDENCY_FULL = "dependency"; //$NON-NLS-1$
private final static String LABEL_ABSTRACTION = "abstraction"; //$NON-NLS-1$
private final static String LABEL_USAGE = "usage"; //$NON-NLS-1$
private final static String LABEL_SUBSTITUTION = "substitute"; //$NON-NLS-1$
private final ViewSwitch myViewSwitch = new ViewSwitch();
private final EditSwitch myEditSwitch = new EditSwitch();
private HashMap<String, EClass> myEditStringToType;
private final FixedSetCompletionProcessor myCompletionProcessor = new FixedSetCompletionProcessor(LABEL_DEPENDENCY_FULL, LABEL_ABSTRACTION, LABEL_SUBSTITUTION, LABEL_USAGE);
public IContentAssistProcessor getCompletionProcessor(IAdaptable element) {
myCompletionProcessor.setContext(doAdapt(element));
return myCompletionProcessor;
}
public List<EObject> getSemanticElementsBeingParsed(EObject element) {
if (element instanceof Dependency == false) {
return Collections.emptyList();
}
ArrayList<EObject> result = new ArrayList<EObject>();
result.add(element);
result.add(element.eContainer());
return result;
}
public String getEditString(IAdaptable element, int flags) {
EObject dependency = doAdapt(element);
return (dependency == null) ? NOT_APPLICABLE : getEditSwitch().doSwitch(dependency);
}
public String getPrintString(IAdaptable element, int flags) {
EObject subject = doAdapt(element);
return (subject == null) ? NOT_APPLICABLE : getViewSwitch().doSwitch(subject);
}
public ICommand getParseCommand(IAdaptable element, String newString, int flags) {
EObject dependency = doAdapt(element);
if (dependency == null) {
return UnexecutableCommand.INSTANCE;
}
EClass type = getType(newString);
if (dependency.eClass().equals(type)) {
return IdentityCommand.INSTANCE;
}
//XXX: adapter to EditPart is more logical here, see #158795
ConnectionEditPart editPart = getSelectedEditPart();
if (type == null || editPart == null) {
return UnexecutableCommand.INSTANCE;
}
return new CommandProxy(new ChangeDependencyTypeCommand(editPart, type));
}
public boolean areSemanticElementsAffected(EObject listener, Object notification) {
return isAffectingEvent(notification, 0);
}
public boolean isAffectingEvent(Object notification, int flags) {
if (notification instanceof Notification) {
Object feature = ((Notification) notification).getFeature();
return UMLPackage.eINSTANCE.getPackage_PackagedElement().equals(feature);
}
return false;
}
public IParserEditStatus isValidEditString(IAdaptable element, String editString) {
return getType(editString) == null ? ParserEditStatus.UNEDITABLE_STATUS : ParserEditStatus.EDITABLE_STATUS;
}
private EObject doAdapt(IAdaptable adaptable) {
return (EObject) adaptable.getAdapter(EObject.class);
}
private EClass getType(String newString) {
if (newString == null) {
newString = ""; //$NON-NLS-1$
}
newString = newString.trim();
return getEditStringToTypeTable().get(newString);
}
private ConnectionEditPart getSelectedEditPart() {
ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getSelection();
if (selection instanceof IStructuredSelection == false) {
return null;
}
EditPart selected = ((EditPart) ((IStructuredSelection) selection).getFirstElement());
if (selected instanceof LabelEditPart) {
selected = selected.getParent();
}
return (selected instanceof ConnectionEditPart) ? (ConnectionEditPart) selected : null;
}
@SuppressWarnings("serial")
private HashMap<String, EClass> getEditStringToTypeTable() {
if (myEditStringToType == null) {
myEditStringToType = new HashMap<String, EClass>() {
@Override
public EClass put(String key, EClass value) {
EClass result = super.put(key, value);
super.put(NLS.bind(QUOTE_FORMAT, new Object[] { key }), value);
return result;
}
};
myEditStringToType.put(LABEL_DEPENDENCY_FULL, UMLPackage.eINSTANCE.getDependency());
myEditStringToType.put(LABEL_DEPENDENCY_SHORT, UMLPackage.eINSTANCE.getDependency());
myEditStringToType.put(LABEL_ABSTRACTION, UMLPackage.eINSTANCE.getAbstraction());
myEditStringToType.put(LABEL_SUBSTITUTION, UMLPackage.eINSTANCE.getSubstitution());
myEditStringToType.put(LABEL_USAGE, UMLPackage.eINSTANCE.getUsage());
}
return myEditStringToType;
}
private UMLSwitch<String> getViewSwitch() {
return myViewSwitch;
}
private UMLSwitch<String> getEditSwitch() {
return myEditSwitch;
}
private static class EditSwitch extends UMLSwitch<String> {
@Override
public String defaultCase(EObject object) {
return NOT_APPLICABLE;
}
@Override
public String caseDependency(Dependency object) {
return LABEL_DEPENDENCY_FULL;
}
@Override
public String caseAbstraction(Abstraction object) {
return quote(LABEL_ABSTRACTION);
}
@Override
public String caseUsage(Usage object) {
return quote(LABEL_USAGE);
}
@Override
public String caseSubstitution(Substitution object) {
return quote(LABEL_SUBSTITUTION);
}
protected String quote(String text) {
return text;
}
}
private static class ViewSwitch extends EditSwitch {
@Override
protected String quote(String text) {
return NLS.bind(QUOTE_FORMAT, new Object[] { text });
}
@Override
public String caseDependency(Dependency object) {
return LABEL_DEPENDENCY_SHORT;
}
}
private static final String QUOTE_FORMAT = "\u00AB{0}\u00BB"; //$NON-NLS-1$
}