/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
*
* 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:
* Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
*/
package org.eclipse.papyrus.uml.diagram.clazz.expressions;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Collections;
import java.util.Map;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EDataType;
import org.eclipse.emf.ecore.EEnum;
import org.eclipse.emf.ecore.EEnumLiteral;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.papyrus.uml.diagram.clazz.part.UMLDiagramEditorPlugin;
/**
* @generated
*/
public abstract class UMLAbstractExpression {
/**
* @generated
*/
private IStatus status = Status.OK_STATUS;
/**
* @generated
*/
protected void setStatus(int severity, String message, Throwable throwable) {
String pluginID = UMLDiagramEditorPlugin.ID;
this.status = new Status(severity, pluginID, -1, (message != null) ? message : "", throwable); //$NON-NLS-1$
if(!this.status.isOK()) {
UMLDiagramEditorPlugin.getInstance().logError("Expression problem:" + message + "body:" + body(), throwable); //$NON-NLS-1$ //$NON-NLS-2$
}
}
/**
* @generated
*/
public IStatus getStatus() {
return status;
}
/**
* @generated
*/
private final String myBody;
/**
* @generated
*/
public String body() {
return myBody;
}
/**
* @generated
*/
private final EClassifier myContext;
/**
* @generated
*/
public EClassifier context() {
return myContext;
}
/**
* @generated
*/
protected UMLAbstractExpression(String body, EClassifier context) {
myBody = body;
myContext = context;
}
/**
* @generated
*/
@SuppressWarnings("rawtypes")
protected abstract Object doEvaluate(Object context, Map env);
/**
* @generated
*/
public Object evaluate(Object context) {
return evaluate(context, Collections.EMPTY_MAP);
}
/**
* @generated
*/
@SuppressWarnings("rawtypes")
public Object evaluate(Object context, Map env) {
if(context().isInstance(context)) {
try {
return doEvaluate(context, env);
} catch (Exception e) {
UMLDiagramEditorPlugin.getInstance().logError("Expression evaluation failure: " + body(), e); //$NON-NLS-1$
}
}
return null;
}
/**
* Expression may return number value which is not directly compatible with feature type (e.g. Double when Integer is expected), or EEnumLiteral
* meta-object when literal instance is expected
*
* @generated
*/
public static Object performCast(Object value, EDataType targetType) {
if(targetType instanceof EEnum) {
if(value instanceof EEnumLiteral) {
EEnumLiteral literal = (EEnumLiteral)value;
return (literal.getInstance() != null) ? literal.getInstance() : literal;
}
}
if(false == value instanceof Number || targetType == null || targetType.getInstanceClass() == null) {
return value;
}
Class<?> targetClass = targetType.getInstanceClass();
Number num = (Number)value;
Class<?> valClass = value.getClass();
Class<?> targetWrapperClass = targetClass;
if(targetClass.isPrimitive()) {
targetWrapperClass = EcoreUtil.wrapperClassFor(targetClass);
}
if(valClass.equals(targetWrapperClass)) {
return value;
}
if(Number.class.isAssignableFrom(targetWrapperClass)) {
if(targetWrapperClass.equals(Byte.class))
return new Byte(num.byteValue());
if(targetWrapperClass.equals(Integer.class))
return new Integer(num.intValue());
if(targetWrapperClass.equals(Short.class))
return new Short(num.shortValue());
if(targetWrapperClass.equals(Long.class))
return new Long(num.longValue());
if(targetWrapperClass.equals(BigInteger.class))
return BigInteger.valueOf(num.longValue());
if(targetWrapperClass.equals(Float.class))
return new Float(num.floatValue());
if(targetWrapperClass.equals(Double.class))
return new Double(num.doubleValue());
if(targetWrapperClass.equals(BigDecimal.class))
return new BigDecimal(num.doubleValue());
}
return value;
}
}