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/*
* <copyright>
*
* Copyright (c) 2005-2006 Sven Efftinge and others.
* 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:
* Sven Efftinge - Initial API and implementation
*
* </copyright>
*/
package org.eclipse.internal.xtend.type.impl.java;
import java.lang.reflect.Method;
import java.util.Arrays;
import org.eclipse.internal.xtend.type.baseimpl.OperationImpl;
import org.eclipse.xtend.typesystem.Operation;
import org.eclipse.xtend.typesystem.Type;
/**
* @author Sven Efftinge
* @author Arno Haase
*/
public class JavaOperationImpl extends OperationImpl implements Operation {
private Method method;
public JavaOperationImpl(final Type owner, final String name, final Type type, final Type[] parameterTypes,
final Method method) {
super(owner, name, type, parameterTypes);
this.method = method;
}
@Override
public Object evaluateInternal(Object target, final Object[] params) {
try {
target = getOwner().convert(target, method.getDeclaringClass());
if (params != null) {
for (int i = 0; i < params.length; i++) {
params[i] = getParameterTypes().get(i).convert(params[i], method.getParameterTypes()[i]);
}
}
final Object resultRaw = method.invoke(target, params);
if (resultRaw != null && resultRaw.getClass().isArray()) {
return Arrays.asList ((Object[]) resultRaw);
}
return resultRaw;
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
}
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