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com.liferay.source.formatter.checkstyle.checks.CamelCaseNameCheck Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.source.formatter.checkstyle.checks;
import com.liferay.petra.string.CharPool;
import com.liferay.petra.string.StringBundler;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.TextFormatter;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
import com.puppycrawl.tools.checkstyle.utils.AnnotationUtil;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* @author Hugo Huijser
*/
public class CamelCaseNameCheck extends BaseCheck {
@Override
public int[] getDefaultTokens() {
return new int[] {
TokenTypes.METHOD_DEF, TokenTypes.PARAMETER_DEF,
TokenTypes.VARIABLE_DEF
};
}
@Override
protected void doVisitToken(DetailAST detailAST) {
if (AnnotationUtil.containsAnnotation(detailAST, "Deprecated") ||
AnnotationUtil.containsAnnotation(detailAST, "DisplayName") ||
AnnotationUtil.containsAnnotation(detailAST, "Meta.AD") ||
((detailAST.getType() == TokenTypes.METHOD_DEF) &&
AnnotationUtil.containsAnnotation(detailAST, "Override"))) {
return;
}
DetailAST nameDetailAST = detailAST.findFirstToken(TokenTypes.IDENT);
_checkIncorrectCamelCase(
detailAST, nameDetailAST, "non", "nonProxyHost",
"nonSerializableObjectHandler", "nonSpringServlet");
_checkIncorrectCamelCase(detailAST, nameDetailAST, "re", "reCaptcha");
_checkIncorrectCamelCase(detailAST, nameDetailAST, "sub", "subSelect");
_checkRequiredCamelCase(
detailAST, nameDetailAST, "name", "filenameFilter", "hostname",
"rename", "subname");
}
private void _checkIncorrectCamelCase(
DetailAST detailAST, DetailAST nameDetailAST, String s,
String... allowedNames) {
String name = nameDetailAST.getText();
if (_isAllowedName(name, allowedNames)) {
return;
}
Pattern pattern = Pattern.compile(
StringBundler.concat(
"(^_?", s, "|", TextFormatter.format(s, TextFormatter.G),
")([A-Z]([a-z]*|[A-Z]*))"));
Matcher matcher = pattern.matcher(name);
if (matcher.find()) {
if (_containsNameInAssignStatement(
detailAST, s + matcher.group(2))) {
return;
}
matcher = pattern.matcher(
getVariableTypeName(detailAST, name, false));
if (matcher.find()) {
return;
}
if (detailAST.getType() == TokenTypes.METHOD_DEF) {
log(
nameDetailAST, _MSG_INCORRECT_FOLLOWING_UPPERCASE, s,
"method", name);
}
else if (detailAST.getType() == TokenTypes.PARAMETER_DEF) {
log(
nameDetailAST, _MSG_INCORRECT_FOLLOWING_UPPERCASE, s,
"parameter", name);
}
else {
log(
nameDetailAST, _MSG_INCORRECT_FOLLOWING_UPPERCASE, s,
"variable", name);
}
}
if (detailAST.getType() != TokenTypes.VARIABLE_DEF) {
return;
}
pattern = Pattern.compile(
StringBundler.concat(
"(\\A|_)(", StringUtil.toUpperCase(s), "_[A-Z]+)"));
matcher = pattern.matcher(name);
if (matcher.find() &&
!_containsNameInAssignStatement(detailAST, matcher.group(2))) {
log(
nameDetailAST, _MSG_INCORRECT_FOLLOWING_UNDERSCORE,
StringUtil.toUpperCase(s), name);
}
}
private void _checkRequiredCamelCase(
DetailAST detailAST, DetailAST nameDetailAST, String s,
String... allowedNames) {
String name = nameDetailAST.getText();
if (_isAllowedName(name, allowedNames)) {
return;
}
Pattern pattern = Pattern.compile(
"(((\\A|_)[a-z]+|[A-Z]([A-Z]+|[a-z]+))" + s + ")");
Matcher matcher = pattern.matcher(name);
if (matcher.find()) {
if (_containsNameInAssignStatement(detailAST, matcher.group(1))) {
return;
}
matcher = pattern.matcher(
getVariableTypeName(detailAST, name, false));
if (matcher.find()) {
return;
}
if (detailAST.getType() == TokenTypes.METHOD_DEF) {
log(
nameDetailAST, _MSG_REQUIRED_STARTING_UPPERCASE, s,
"method", name);
}
else if (detailAST.getType() == TokenTypes.PARAMETER_DEF) {
log(
nameDetailAST, _MSG_REQUIRED_STARTING_UPPERCASE, s,
"parameter", name);
}
else {
log(
nameDetailAST, _MSG_REQUIRED_STARTING_UPPERCASE, s,
"variable", name);
}
}
if (detailAST.getType() != TokenTypes.VARIABLE_DEF) {
return;
}
pattern = Pattern.compile(
StringBundler.concat(
"(\\A|_)([A-Z]+", StringUtil.toUpperCase(s), ").*"));
matcher = pattern.matcher(name);
if (matcher.find() &&
!_containsNameInAssignStatement(detailAST, matcher.group(2))) {
log(
nameDetailAST, _MSG_REQUIRED_PRECEDING_UNDERSCORE,
StringUtil.toUpperCase(s), name);
}
}
private boolean _containsNameInAssignStatement(
DetailAST detailAST, String name) {
DetailAST assignDetailAST = detailAST.findFirstToken(TokenTypes.ASSIGN);
if (assignDetailAST == null) {
return false;
}
String constantFormatName = _getConstantFormatName(name);
List stringLiteralDetailASTlist = getAllChildTokens(
assignDetailAST, true, TokenTypes.STRING_LITERAL);
if (!stringLiteralDetailASTlist.isEmpty()) {
String camelCaseFormatName = _getCamelCaseFormatName(name);
if (camelCaseFormatName == null) {
return false;
}
String propertyFormatName = _getPropertyFormatName(
camelCaseFormatName);
for (DetailAST stringLiteralDetailAST :
stringLiteralDetailASTlist) {
String text = stringLiteralDetailAST.getText();
if (text.contains(camelCaseFormatName) ||
text.contains(constantFormatName) || text.contains(name) ||
text.contains(propertyFormatName)) {
return true;
}
}
}
List identDetailASTlist = getAllChildTokens(
assignDetailAST, true, TokenTypes.IDENT);
for (DetailAST identDetailAST : identDetailASTlist) {
String text = identDetailAST.getText();
if (text.contains(constantFormatName)) {
return true;
}
}
return false;
}
private String _getCamelCaseFormatName(String name) {
if (name.startsWith(StringPool.UNDERLINE)) {
name = name.substring(1);
}
if (!StringUtil.isUpperCase(name)) {
return TextFormatter.format(name, TextFormatter.I);
}
name = TextFormatter.format(name, TextFormatter.O);
name = StringUtil.toLowerCase(name);
return TextFormatter.format(name, TextFormatter.M);
}
private String _getConstantFormatName(String name) {
if (name.startsWith(StringPool.UNDERLINE)) {
name = name.substring(1);
}
if (StringUtil.isUpperCase(name)) {
return name;
}
name = TextFormatter.format(name, TextFormatter.K);
name = TextFormatter.format(name, TextFormatter.N);
return StringUtil.toUpperCase(name);
}
private String _getPropertyFormatName(String camelCaseName) {
String propertyFormatName = TextFormatter.format(
camelCaseName, TextFormatter.K);
return StringUtil.replace(
propertyFormatName, CharPool.DASH, CharPool.PERIOD);
}
private boolean _isAllowedName(String name, String[] allowedNames) {
for (String allowedName : allowedNames) {
if (name.startsWith(allowedName) ||
name.startsWith("_" + allowedName) ||
name.contains(
TextFormatter.format(allowedName, TextFormatter.G))) {
return true;
}
String constantFormatName = _getConstantFormatName(allowedName);
if (name.startsWith(constantFormatName) ||
name.contains("_" + constantFormatName)) {
return true;
}
}
return false;
}
private static final String _MSG_INCORRECT_FOLLOWING_UNDERSCORE =
"following.underscore.incorrect";
private static final String _MSG_INCORRECT_FOLLOWING_UPPERCASE =
"following.uppercase.incorrect";
private static final String _MSG_REQUIRED_PRECEDING_UNDERSCORE =
"preceding.underscore.required";
private static final String _MSG_REQUIRED_STARTING_UPPERCASE =
"starting.uppercase.required";
}
