com.liferay.source.formatter.checks.JavaDiamondOperatorCheck 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.checks;
import com.liferay.petra.string.StringBundler;
import com.liferay.portal.kernel.util.StringUtil;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* @author Hugo Huijser
*/
public class JavaDiamondOperatorCheck extends BaseFileCheck {
@Override
protected String doProcess(
String fileName, String absolutePath, String content) {
return _applyDiamondOperator(content);
}
private String _applyDiamondOperator(String content) {
Matcher matcher = _diamondOperatorPattern.matcher(content);
while (matcher.find()) {
String match = matcher.group();
if (match.contains("{\n")) {
continue;
}
String className = matcher.group(3);
String parameterType = matcher.group(5);
// LPS-70579
if ((className.equals("AutoResetThreadLocal") ||
className.equals("InitialThreadLocal")) &&
(parameterType.startsWith("Map<") ||
parameterType.startsWith("Set<"))) {
continue;
}
String whitespace = matcher.group(4);
String replacement = StringUtil.replaceFirst(
match,
StringBundler.concat(whitespace, "<", parameterType, ">"),
"<>");
content = StringUtil.replace(content, match, replacement);
}
return content;
}
private static final Pattern _diamondOperatorPattern = Pattern.compile(
"(return|=)\n?(\t+| )new ([A-Za-z]+)(\\s*)<([^>][^;]*?)>" +
"\\(\n*\t*.*?\\);\n",
Pattern.DOTALL);
}