/* | |
* Copyright (c) 2006, 2008 Borland Software Corp. | |
* | |
* 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: | |
* Alexander Shatalin (Borland) - initial API and implementation | |
*/ | |
package org.eclipse.gmf.ecore.parsers; | |
import java.util.Collections; | |
import java.util.LinkedList; | |
import org.eclipse.core.commands.ExecutionException; | |
import org.eclipse.core.resources.IFile; | |
import org.eclipse.core.runtime.IAdaptable; | |
import org.eclipse.core.runtime.IProgressMonitor; | |
import org.eclipse.core.runtime.IStatus; | |
import org.eclipse.core.runtime.Status; | |
import org.eclipse.emf.ecore.EAttribute; | |
import org.eclipse.emf.ecore.EClassifier; | |
import org.eclipse.emf.ecore.EObject; | |
import org.eclipse.emf.ecore.EPackage; | |
import org.eclipse.emf.ecore.EcorePackage; | |
import org.eclipse.emf.transaction.TransactionalEditingDomain; | |
import org.eclipse.emf.transaction.util.TransactionUtil; | |
import org.eclipse.emf.workspace.util.WorkspaceSynchronizer; | |
import org.eclipse.gmf.ecore.expressions.EcoreAbstractExpression; | |
import org.eclipse.gmf.ecore.expressions.EcoreOCLFactory; | |
import org.eclipse.gmf.runtime.common.core.command.CommandResult; | |
import org.eclipse.gmf.runtime.common.core.command.ICommand; | |
import org.eclipse.gmf.runtime.common.core.command.UnexecutableCommand; | |
import org.eclipse.gmf.runtime.common.ui.services.parser.IParser; | |
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.emf.commands.core.command.AbstractTransactionalCommand; | |
import org.eclipse.jface.text.contentassist.IContentAssistProcessor; | |
/** | |
* @generated | |
*/ | |
public class EAttributeExpressionLabelParser implements IParser { | |
/** | |
* @generated | |
*/ | |
public EAttributeExpressionLabelParser() { | |
} | |
/** | |
* @generated | |
*/ | |
public String getEditString(IAdaptable element, int flags) { | |
return "<enter new value>"; | |
} | |
/** | |
* @generated | |
*/ | |
public IParserEditStatus isValidEditString(IAdaptable element, String editString) { | |
if (Boolean.FALSE.equals(evaluateValidateExpression(editString))) { | |
return ParserEditStatus.UNEDITABLE_STATUS; | |
} // else fall-through | |
return ParserEditStatus.EDITABLE_STATUS; | |
} | |
/** | |
* @generated | |
*/ | |
public ICommand getParseCommand(IAdaptable element, final String newString, int flags) { | |
final EObject target = (EObject) element.getAdapter(EObject.class); | |
if (!validateValues(target, newString)) { | |
return UnexecutableCommand.INSTANCE; | |
} | |
TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(target); | |
if (editingDomain == null) { | |
return UnexecutableCommand.INSTANCE; | |
} | |
IFile affectedFile = WorkspaceSynchronizer.getFile(target.eResource()); | |
return new AbstractTransactionalCommand(editingDomain, "Set Values", affectedFile == null ? null : Collections.singletonList(affectedFile)) { //$NON-NLS-1$ | |
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException { | |
return new CommandResult(updateValues(target, newString)); | |
} | |
}; | |
} | |
/** | |
* @generated | |
*/ | |
public String getPrintString(IAdaptable element, int flags) { | |
EObject target = (EObject) element.getAdapter(EObject.class); | |
Object result = EcoreOCLFactory.getExpression(0, EcorePackage.eINSTANCE.getEAttribute(), null).evaluate(target); | |
return String.valueOf(result); | |
} | |
/** | |
* @generated | |
*/ | |
public boolean isAffectingEvent(Object event, int flags) { | |
// XXX Any event is recognized as important, unless there's a way to extract this information from expression itself. | |
// TODO analyze expressions (e.g. using OCL parser) to find out structural features in use | |
return true; | |
} | |
/** | |
* @generated | |
*/ | |
public IContentAssistProcessor getCompletionProcessor(IAdaptable element) { | |
return null; | |
} | |
/** | |
* @generated | |
*/ | |
private boolean validateValues(EObject target, String newString) { | |
// TODO implement as needed | |
return true; | |
} | |
/** | |
* @generated NOT | |
*/ | |
private IStatus updateValues(EObject target, String newString) throws ExecutionException { | |
EAttribute attr = (EAttribute) target; | |
String[] parts = newString.split(":"); | |
if (parts.length != 2 || parts[0].trim().length() == 0 || parts[1].trim().length() == 0) { | |
return Status.CANCEL_STATUS; | |
} | |
attr.setName(parts[0].trim()); | |
LinkedList<EPackage> lookup = new LinkedList<EPackage>(); | |
if (attr.getEContainingClass() != null && attr.getEContainingClass().getEPackage() != null) { | |
lookup.add(attr.getEContainingClass().getEPackage()); | |
} | |
lookup.add(EcorePackage.eINSTANCE); | |
String newTypeName = parts[1].trim(); | |
EClassifier newType = null; | |
for (EPackage p : lookup) { | |
EClassifier c = p.getEClassifier(newTypeName); | |
if (c != null) { | |
newType = c; | |
break; | |
} | |
} | |
if (newType != null) { | |
attr.setEType(newType); | |
} | |
return Status.OK_STATUS; | |
} | |
/** | |
* @generated | |
*/ | |
private Boolean evaluateValidateExpression(String self) { | |
return self.length() > 0; | |
} | |
} |