@Override
public void invoke(@NotNull Project project, Editor editor, @NotNull PsiElement element)
throws IncorrectOperationException {
try {
if (!FileModificationService.getInstance().preparePsiElementForWrite(element)) return;
final PsiJavaToken token = (PsiJavaToken) element;
final PsiPolyadicExpression expression =
SplitConditionUtil.findCondition(element, true, false);
final PsiLambdaExpression lambdaExpression =
PsiTreeUtil.getParentOfType(expression, PsiLambdaExpression.class);
LOG.assertTrue(lambdaExpression != null);
final String lambdaParameterName =
lambdaExpression.getParameterList().getParameters()[0].getName();
final PsiMethodCallExpression methodCallExpression =
PsiTreeUtil.getParentOfType(expression, PsiMethodCallExpression.class);
LOG.assertTrue(methodCallExpression != null, expression);
PsiExpression lOperand = getLOperands(expression, token);
PsiExpression rOperand = getROperands(expression, token);
final Collection<PsiComment> comments =
PsiTreeUtil.findChildrenOfType(expression, PsiComment.class);
final PsiMethodCallExpression chainedCall =
(PsiMethodCallExpression)
JavaPsiFacade.getElementFactory(project)
.createExpressionFromText(
"a.filter(" + lambdaParameterName + " -> x)", expression);
final PsiExpression argExpression = chainedCall.getArgumentList().getExpressions()[0];
final PsiElement rReplaced =
((PsiLambdaExpression) argExpression).getBody().replace(rOperand);
final PsiExpression compoundArg = methodCallExpression.getArgumentList().getExpressions()[0];
final int separatorOffset = token.getTextOffset();
for (PsiComment comment : comments) {
if (comment.getTextOffset() < separatorOffset) {
compoundArg.getParent().add(comment);
} else {
rReplaced.getParent().add(comment);
}
}
((PsiLambdaExpression) compoundArg).getBody().replace(lOperand);
chainedCall.getMethodExpression().getQualifierExpression().replace(methodCallExpression);
methodCallExpression.replace(chainedCall);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
@Override
protected void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiMethodCallExpression methodCallExpression =
(PsiMethodCallExpression) descriptor.getPsiElement().getParent().getParent();
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (qualifier == null) {
PsiReplacementUtil.replaceExpression(methodCallExpression, "this");
} else {
methodCallExpression.replace(qualifier);
}
}
@Override
protected void doFix(Project project, ProblemDescriptor descriptor) {
final PsiElement element = descriptor.getPsiElement();
final PsiClass aClass = ClassUtils.getContainingStaticClass(element);
if (aClass == null) {
return;
}
final PsiElement parent = element.getParent();
if (!(parent instanceof PsiReferenceExpression)) {
return;
}
final PsiReferenceExpression methodExpression = (PsiReferenceExpression) parent;
final PsiElement grandParent = methodExpression.getParent();
if (!(grandParent instanceof PsiMethodCallExpression)) {
return;
}
final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) grandParent;
final PsiExpressionList list = methodCallExpression.getArgumentList();
final PsiExpression[] expressions = list.getExpressions();
@NonNls
final StringBuilder fieldText =
new StringBuilder(
"private static final java.util.regex.Pattern PATTERN = java.util.regex.Pattern.compile(");
final int expressionsLength = expressions.length;
if (expressionsLength > 0) {
fieldText.append(expressions[0].getText());
}
@NonNls final String methodName = methodExpression.getReferenceName();
final boolean literalReplacement = "replace".equals(methodName);
if (literalReplacement) {
fieldText.append(", java.util.regex.Pattern.LITERAL");
}
fieldText.append(");");
@NonNls final StringBuilder expressionText = new StringBuilder("PATTERN.");
final PsiExpression qualifier = methodExpression.getQualifierExpression();
@NonNls final String qualifierText = (qualifier == null) ? "this" : qualifier.getText();
if ("split".equals(methodName)) {
expressionText.append(methodName);
expressionText.append('(');
expressionText.append(qualifierText);
for (int i = 1; i < expressionsLength; i++) {
expressionText.append(',').append(expressions[i].getText());
}
expressionText.append(')');
} else {
expressionText.append("matcher(").append(qualifierText).append(").");
if (literalReplacement) {
expressionText.append("replaceAll");
} else {
expressionText.append(methodName);
}
expressionText.append('(');
if (literalReplacement) {
expressionText.append("java.util.regex.Matcher.quoteReplacement(");
}
if (expressionsLength > 1) {
expressionText.append(expressions[1].getText());
for (int i = 2; i < expressionsLength; i++) {
expressionText.append(',').append(expressions[i].getText());
}
}
if (literalReplacement) {
expressionText.append(')');
}
expressionText.append(')');
}
final PsiElementFactory factory = JavaPsiFacade.getElementFactory(project);
final PsiField newField = factory.createFieldFromText(fieldText.toString(), element);
final PsiElement field = aClass.add(newField);
final PsiExpression newExpression =
factory.createExpressionFromText(expressionText.toString(), element);
PsiMethodCallExpression newMethodCallExpression =
(PsiMethodCallExpression) methodCallExpression.replace(newExpression);
newMethodCallExpression =
CodeInsightUtilCore.forcePsiPostprocessAndRestoreElement(newMethodCallExpression);
final PsiReferenceExpression reference = getReference(newMethodCallExpression);
HighlightUtils.showRenameTemplate(aClass, (PsiNameIdentifierOwner) field, reference);
}
