/*******************************************************************************
* Copyright (c) 2014 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.ui.fix;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.compiler.IProblem;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.internal.corext.fix.CleanUpConstants;
import org.eclipse.jdt.internal.corext.fix.TypeParametersFix;
import org.eclipse.jdt.ui.cleanup.CleanUpRequirements;
import org.eclipse.jdt.ui.cleanup.ICleanUpFix;
import org.eclipse.jdt.ui.text.java.IProblemLocation;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
public class TypeParametersCleanUp extends AbstractMultiFix {
private Map<String, String> fOptions;
public TypeParametersCleanUp(Map<String, String> options) {
super(options);
fOptions= options;
}
public TypeParametersCleanUp() {
super();
}
/**
* {@inheritDoc}
*/
@Override
public CleanUpRequirements getRequirements() {
boolean requireAST= requireAST();
Map<String, String> requiredOptions= requireAST ? getRequiredOptions() : null;
return new CleanUpRequirements(requireAST, false, false, requiredOptions);
}
private boolean requireAST() {
boolean useTypeArguments= isEnabled(CleanUpConstants.USE_TYPE_ARGUMENTS);
if (!useTypeArguments)
return false;
return isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS) ||
isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS);
}
private Map<String, String> getRequiredOptions() {
Map<String, String> result= new Hashtable<String, String>();
if (isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS))
result.put(JavaCore.COMPILER_PB_REDUNDANT_TYPE_ARGUMENTS, JavaCore.WARNING);
return result;
}
/**
* {@inheritDoc}
*/
@Override
protected ICleanUpFix createFix(CompilationUnit compilationUnit) throws CoreException {
if (compilationUnit == null)
return null;
boolean useTypeParameters= isEnabled(CleanUpConstants.USE_TYPE_ARGUMENTS);
if (!useTypeParameters)
return null;
return TypeParametersFix.createCleanUp(compilationUnit,
isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS),
isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS));
}
@Override
protected ICleanUpFix createFix(CompilationUnit compilationUnit, IProblemLocation[] problems) throws CoreException {
if (compilationUnit == null)
return null;
boolean useTypeParameters= isEnabled(CleanUpConstants.USE_TYPE_ARGUMENTS);
if (!useTypeParameters)
return null;
return TypeParametersFix.createCleanUp(compilationUnit, problems,
isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS),
isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS));
}
/**
* {@inheritDoc}
*/
@Override
public String[] getStepDescriptions() {
List<String> result= new ArrayList<String>();
if (isEnabled(CleanUpConstants.USE_TYPE_ARGUMENTS) && isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS)) {
result.add(MultiFixMessages.TypeParametersCleanUp_InsertInferredTypeArguments_description);
} else if (isEnabled(CleanUpConstants.USE_TYPE_ARGUMENTS) && isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS)) {
result.add(MultiFixMessages.TypeParametersCleanUp_RemoveRedundantTypeArguments_description);
}
return result.toArray(new String[result.size()]);
}
/**
* {@inheritDoc}
*/
public boolean canFix(ICompilationUnit compilationUnit, IProblemLocation problem) {
int problemId= problem.getProblemId();
if (problemId == IProblem.RedundantSpecificationOfTypeArguments)
return isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS);
if (problemId == IProblem.DiamondNotBelow17)
return isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS);
return false;
}
/**
* {@inheritDoc}
*/
@Override
public int computeNumberOfFixes(CompilationUnit compilationUnit) {
if (fOptions == null)
return 0;
int result= 0;
IProblem[] problems= compilationUnit.getProblems();
if (isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS))
result= getNumberOfProblems(problems, IProblem.RedundantSpecificationOfTypeArguments);
else if (isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS))
result= getNumberOfProblems(problems, IProblem.DiamondNotBelow17);
return result;
}
}