/*******************************************************************************
* Copyright (c) 2012 VMware, Inc.
* 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:
* VMware, Inc. - initial API and implementation
*******************************************************************************/
package org.springframework.ide.eclipse.quickfix.proposals;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.IMethodBinding;
import org.eclipse.jdt.core.dom.ITypeBinding;
import org.eclipse.jdt.internal.ui.JavaPluginImages;
import org.eclipse.jdt.internal.ui.text.correction.ASTResolving;
import org.eclipse.jface.text.IDocument;
import org.eclipse.swt.graphics.Image;
import org.springframework.ide.eclipse.quickfix.QuickfixUtils;
/**
* Quick fix proposal for removing constructor parameters from a constructor
* @author Terry Denney
* @author Leo Dos Santos
* @author Christian Dupuis
* @since 2.0
*/
public class RemoveConstructorParamQuickFixProposal extends BeanAttributeQuickFixProposal {
private final int numAdditionalParams;
private final IMethod constructor;
private final String label;
private final IJavaProject javaProject;
public RemoveConstructorParamQuickFixProposal(int offset, int length, boolean missingEndQuote,
int numAdditionalParams, IMethod constructor, String label, IJavaProject javaProject) {
super(offset, length, missingEndQuote);
this.numAdditionalParams = numAdditionalParams;
this.constructor = constructor;
this.label = label;
this.javaProject = javaProject;
}
@Override
public void applyQuickFix(IDocument document) {
int numParams = constructor.getNumberOfParameters();
Object[] changeDesc = QuickfixReflectionUtils.createChangeDescriptionArray(numParams);
for (int i = numParams - 1; i >= numParams - numAdditionalParams; i--) {
changeDesc[i] = QuickfixReflectionUtils.createRemoveDescription();
}
ICompilationUnit targetCU = constructor.getCompilationUnit();
String[] paramTypes = new String[numParams];
for (int i = 0; i < numParams; i++) {
paramTypes[i] = "Object";
}
IMethodBinding methodBinding = QuickfixUtils.getMethodBinding(javaProject, constructor);
if (methodBinding != null) {
ClassInstanceCreation invocationNode = QuickfixUtils.getMockConstructorInvocation(constructor
.getDeclaringType().getFullyQualifiedName(), paramTypes);
Object proposal = QuickfixReflectionUtils.createChangeMethodSignatureProposal(label, targetCU,
invocationNode, methodBinding, changeDesc, 5, getImage());
QuickfixReflectionUtils.applyProposal(proposal, document);
}
}
public String getDisplayString() {
String params = "";
int numParams = constructor.getNumberOfParameters();
IMethodBinding methodBinding = QuickfixUtils.getMethodBinding(javaProject, constructor);
ITypeBinding[] typeParameters = methodBinding.getParameterTypes();
for (int i = numParams - numAdditionalParams; i < numParams; i++) {
if (params.length() > 0) {
params += ", ";
}
params += "'" + ASTResolving.getTypeSignature(typeParameters[i]) + "'";
}
return label + ": Remove parameter " + params;
}
public Image getImage() {
return JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_REMOVE);
}
}