com.liferay.source.formatter.checks.YMLLongLinesCheck Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of com.liferay.source.formatter
Liferay Source Formatter
There is a newer version: 1.0.1437
/**
 * 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.CharPool;
import com.liferay.petra.string.StringBundler;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.StringUtil;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author Alan Huang
 */
public class YMLLongLinesCheck extends BaseFileCheck {

	@Override
	protected String doProcess(
		String fileName, String absolutePath, String content) {

		int maxLineLength = 0;

		try {
			maxLineLength = Integer.parseInt(
				getAttributeValue(_MAX_LINE_LENGTH, absolutePath));
		}
		catch (NumberFormatException numberFormatException) {
			if (_log.isDebugEnabled()) {
				_log.debug(numberFormatException, numberFormatException);
			}

			return content;
		}

		Matcher matcher = _descriptionPattern.matcher(content);

		while (matcher.find()) {
			String match = matcher.group(4);

			if (match.contains(": ")) {
				continue;
			}

			String description = StringUtil.trim(
				match.replaceAll("\n +", StringPool.SPACE));

			String indent = matcher.group(2) + StringPool.FOUR_SPACES;

			description = _splitDescription(
				indent + description, indent, maxLineLength);

			description = StringPool.NEW_LINE + description;

			if (!StringUtil.equals(match, description)) {
				return StringUtil.replaceFirst(
					content, match, description, matcher.start(4));
			}
		}

		return content;
	}

	private String _splitDescription(
		String description, String indent, int maxLineLength) {

		if (description.length() <= maxLineLength) {
			return description;
		}

		int pos = description.indexOf(CharPool.SPACE, indent.length());

		if (pos == -1) {
			return description;
		}

		if (pos > maxLineLength) {
			return StringBundler.concat(
				description.substring(0, pos), StringPool.NEW_LINE,
				_splitDescription(
					indent + description.substring(pos + 1), indent,
					maxLineLength));
		}

		pos = description.lastIndexOf(CharPool.SPACE, maxLineLength);

		return StringBundler.concat(
			description.substring(0, pos), StringPool.NEW_LINE,
			_splitDescription(
				indent + description.substring(pos + 1), indent,
				maxLineLength));
	}

	private static final String _MAX_LINE_LENGTH = "maxLineLength";

	private static final Log _log = LogFactoryUtil.getLog(
		YMLLongLinesCheck.class);

	private static final Pattern _descriptionPattern = Pattern.compile(
		"(\n( +)description:(\n\\2 +#.*)*)((\n\\2 +.+)+)");

}