| /******************************************************************************* |
| * Copyright (c) 2014, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.fix; |
| |
| import java.util.ArrayList; |
| import java.util.Hashtable; |
| import java.util.List; |
| import java.util.Map; |
| |
| 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; |
| |
| public class TypeParametersCleanUp extends AbstractMultiFix { |
| |
| private Map<String, String> fOptions; |
| |
| public TypeParametersCleanUp(Map<String, String> options) { |
| super(options); |
| fOptions= options; |
| } |
| |
| public TypeParametersCleanUp() { |
| super(); |
| } |
| |
| @Override |
| public CleanUpRequirements getRequirements() { |
| boolean requireAST= isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS) || isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS); |
| Map<String, String> requiredOptions= requireAST ? getRequiredOptions() : null; |
| return new CleanUpRequirements(requireAST, false, false, requiredOptions); |
| } |
| |
| private Map<String, String> getRequiredOptions() { |
| Map<String, String> result= new Hashtable<>(); |
| |
| if (isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS)) |
| result.put(JavaCore.COMPILER_PB_REDUNDANT_TYPE_ARGUMENTS, JavaCore.WARNING); |
| |
| return result; |
| } |
| |
| @Override |
| protected ICleanUpFix createFix(CompilationUnit compilationUnit) throws CoreException { |
| if (compilationUnit == null) |
| 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; |
| |
| return TypeParametersFix.createCleanUp(compilationUnit, problems, |
| isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS), |
| isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS)); |
| } |
| |
| @Override |
| public String[] getStepDescriptions() { |
| List<String> result= new ArrayList<>(); |
| if (isEnabled(CleanUpConstants.INSERT_INFERRED_TYPE_ARGUMENTS)) { |
| result.add(MultiFixMessages.TypeParametersCleanUp_InsertInferredTypeArguments_description); |
| } else if (isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS)) { |
| result.add(MultiFixMessages.TypeParametersCleanUp_RemoveUnnecessaryTypeArguments_description); |
| } |
| |
| return result.toArray(new String[result.size()]); |
| } |
| |
| @Override |
| 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; |
| } |
| |
| @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; |
| |
| } |
| |
| @Override |
| public String getPreview() { |
| StringBuilder buf= new StringBuilder(); |
| |
| if (isEnabled(CleanUpConstants.REMOVE_REDUNDANT_TYPE_ARGUMENTS)) { |
| buf.append("\nMap<Integer, String> map= new HashMap<>();"); //$NON-NLS-1$ |
| } else { |
| buf.append("\nMap<Integer, String> map= new HashMap<Integer, String>();"); //$NON-NLS-1$ |
| } |
| |
| return buf.toString(); |
| } |
| } |