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/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.codeInsight.daemon.impl.quickfix;
import com.intellij.codeInsight.FileModificationService;
import com.intellij.codeInsight.daemon.QuickFixBundle;
import com.intellij.codeInsight.generation.GenerateMembersUtil;
import com.intellij.codeInspection.LocalQuickFixAndIntentionActionOnPsiElement;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.CodeStyleManager;
import com.intellij.psi.codeStyle.JavaCodeStyleManager;
import com.intellij.psi.util.MethodSignatureUtil;
import com.intellij.psi.util.PsiUtil;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.List;
public class AddMethodFix extends LocalQuickFixAndIntentionActionOnPsiElement {
private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.daemon.impl.quickfix.AddMethodFix");
private final PsiMethod myMethodPrototype;
private String myText;
private final List<String> myExceptions = new ArrayList<String>();
public AddMethodFix(@NotNull PsiMethod methodPrototype, @NotNull PsiClass implClass) {
super(implClass);
myMethodPrototype = methodPrototype;
setText(QuickFixBundle.message("add.method.text", methodPrototype.getName(), implClass.getName()));
}
public AddMethodFix(@NonNls @NotNull String methodText, @NotNull PsiClass implClass, @NotNull String... exceptions) {
this(createMethod(methodText, implClass), implClass);
ContainerUtil.addAll(myExceptions, exceptions);
}
private static PsiMethod createMethod(final String methodText, final PsiClass implClass) {
try {
return JavaPsiFacade.getInstance(implClass.getProject()).getElementFactory().createMethodFromText(methodText, implClass);
}
catch (IncorrectOperationException e) {
LOG.error(e);
return null;
}
}
private static PsiMethod reformat(Project project, PsiMethod result) throws IncorrectOperationException {
CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
result = (PsiMethod) codeStyleManager.reformat(result);
JavaCodeStyleManager javaCodeStyleManager = JavaCodeStyleManager.getInstance(project);
result = (PsiMethod) javaCodeStyleManager.shortenClassReferences(result);
return result;
}
protected void setText(@NotNull String text) {
myText = text;
}
@NotNull
@Override
public String getText() {
return myText;
}
@Override
@NotNull
public String getFamilyName() {
return QuickFixBundle.message("add.method.family");
}
@Override
public boolean isAvailable(@NotNull Project project,
@NotNull PsiFile file,
@NotNull PsiElement startElement,
@NotNull PsiElement endElement) {
final PsiClass myClass = (PsiClass)startElement;
return myMethodPrototype != null
&& myMethodPrototype.isValid()
&& myClass.isValid()
&& myClass.getManager().isInProject(myClass)
&& myText != null
&& MethodSignatureUtil.findMethodBySignature(myClass, myMethodPrototype, false) == null
;
}
@Override
public void invoke(@NotNull Project project,
@NotNull PsiFile file,
@Nullable("is null when called from inspection") Editor editor,
@NotNull PsiElement startElement,
@NotNull PsiElement endElement) {
final PsiClass myClass = (PsiClass)startElement;
if (!FileModificationService.getInstance().prepareFileForWrite(myClass.getContainingFile())) return;
PsiCodeBlock body;
if (myClass.isInterface() && (body = myMethodPrototype.getBody()) != null) body.delete();
for (String exception : myExceptions) {
PsiUtil.addException(myMethodPrototype, exception);
}
PsiMethod method = (PsiMethod)myClass.add(myMethodPrototype);
method = (PsiMethod)method.replace(reformat(project, method));
if (editor != null && method.getContainingFile() == file) {
GenerateMembersUtil.positionCaret(editor, method, true);
}
}
}
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