| /******************************************************************************* |
| * Copyright (c) 2015 Obeo. |
| * 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: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.acceleo.query.runtime.impl; |
| |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.acceleo.query.runtime.IReadOnlyQueryEnvironment; |
| import org.eclipse.acceleo.query.validation.type.IType; |
| |
| /** |
| * Implementation of an {@link org.eclipse.acceleo.query.runtime.IService IService} for {@link Method} with |
| * receiver as first parameter. |
| * |
| * @author <a href="mailto:yvan.lussaud@obeo.fr">Yvan Lussaud</a> |
| */ |
| public class JavaMethodReceiverService extends JavaMethodService { |
| |
| /** |
| * Constructor. |
| * |
| * @param method |
| * the method that realizes the service |
| */ |
| public JavaMethodReceiverService(Method method) { |
| super(method, null); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.acceleo.query.runtime.IService#getShortSignature() |
| */ |
| @Override |
| public String getShortSignature() { |
| final Class<?>[] parameters = getParameterTypes(); |
| return serviceShortSignature(parameters); |
| } |
| |
| /** |
| * Gets the parameter types including the receiver type. |
| * |
| * @return the parameter types including the receiver type |
| */ |
| private Class<?>[] getParameterTypes() { |
| final Class<?>[] parameters = new Class<?>[getOrigin().getParameterTypes().length + 1]; |
| int i = 0; |
| parameters[i++] = getOrigin().getDeclaringClass(); |
| for (Class<?> cls : getOrigin().getParameterTypes()) { |
| parameters[i++] = cls; |
| } |
| return parameters; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.acceleo.query.runtime.IService#getLongSignature() |
| */ |
| @Override |
| public String getLongSignature() { |
| return super.getLongSignature() + " (receiver as first parameter)"; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.acceleo.query.runtime.IService#getParameterTypes(org.eclipse.acceleo.query.runtime.IReadOnlyQueryEnvironment) |
| */ |
| @Override |
| public List<IType> getParameterTypes(IReadOnlyQueryEnvironment queryEnvironment) { |
| final List<IType> result = new ArrayList<IType>(); |
| |
| for (Class<?> cls : getParameterTypes()) { |
| result.add(getClassType(queryEnvironment, cls)); |
| } |
| |
| return result; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.acceleo.query.runtime.IService#getNumberOfParameters() |
| */ |
| @Override |
| public int getNumberOfParameters() { |
| return super.getNumberOfParameters() + 1; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.acceleo.query.runtime.impl.AbstractService#internalInvoke(java.lang.Object[]) |
| */ |
| @Override |
| protected Object internalInvoke(Object[] arguments) throws Exception { |
| final Object receiver = arguments[0]; |
| final Object[] newArguments = new Object[arguments.length - 1]; |
| for (int i = 0; i < newArguments.length; i++) { |
| newArguments[i] = arguments[i + 1]; |
| } |
| |
| return getOrigin().invoke(receiver, newArguments); |
| } |
| |
| } |