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• PropertiesDocBuilder.java

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com.liferay.portal.tools.propertiesdoc.PropertiesDocBuilder Maven / Gradle / Ivy

/**
 * Copyright (c) 2000-2013 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.portal.tools.propertiesdoc;

import com.liferay.portal.freemarker.FreeMarkerUtil;
import com.liferay.portal.kernel.util.CharPool;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.tools.ArgumentsUtil;
import com.liferay.portal.util.FileImpl;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @author Jesse Rao
 * @author James Hinkey
 */
public class PropertiesDocBuilder {

	public static void main(String[] args) {
		try {
			new PropertiesDocBuilder (args);
		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}

	public PropertiesDocBuilder(String[] args) throws IOException {
		Map arguments = ArgumentsUtil.parseArguments(args);

		String propertiesDestDirName = GetterUtil.getString(
			arguments.get("properties.dest.dir"));
		String propertiesFileName = GetterUtil.getString(
			arguments.get("properties.file"));
		String title = GetterUtil.getString(arguments.get("properties.title"));
		boolean toc = GetterUtil.getBoolean(arguments.get("properties.toc"));

		System.out.println("Converting " + propertiesFileName + " to HTML");

		File propertiesFile = new File(propertiesFileName);

		Map context = new HashMap();

		context.put("pageTitle", title);

		int pos = propertiesFileName.lastIndexOf(StringPool.SLASH);

		if (pos != -1) {
			propertiesFileName = propertiesFileName.substring(pos + 1);
		}

		context.put("propertiesFileName", propertiesFileName);

		List propertiesSections = getPropertiesSections(
			propertiesFile);

		if (propertiesSections == null) {
			return;
		}

		context.put("sections", propertiesSections);

		context.put("toc", toc);

		try {
			StringBundler sb = new StringBundler(4);

			sb.append(propertiesDestDirName);
			sb.append(StringPool.SLASH);
			sb.append(propertiesFileName);
			sb.append(".html");

			String propertiesHTMLFileName = sb.toString();

			File propertiesHTMLFile = new File(propertiesHTMLFileName);

			System.out.println("Writing " + propertiesHTMLFile);

			Writer writer = new FileWriter(propertiesHTMLFile);

			try {
				FreeMarkerUtil.process(
					"com/liferay/portal/tools/propertiesdoc/dependencies/" +
						"properties.ftl",
					context, writer);
			}
			catch (Exception e) {
				e.printStackTrace();
			}

			writer.flush();
		}
		catch (IOException ioe) {
			ioe.printStackTrace();
		}
	}

	protected void addPropertyComment(
		List propertyComments, String comment) {

		if (Validator.isNotNull(comment)) {
			PropertyComment propertyComment = new PropertyComment(comment);

			propertyComments.add(propertyComment);
		}
	}

	protected List extractComments(String[] lines) {
		List comments = new ArrayList();

		StringBundler sb = new StringBundler();

		for (String line : lines) {
			String trimmedLine = line.trim();

			if (trimmedLine.startsWith("## ")) {
				trimmedLine = trimmedLine.substring(2);

				sb.append(trimmedLine.trim());
			}

			if (trimmedLine.length() < 3) {
				if (sb.index() == 0) {
					continue;
				}

				comments.add(sb.toString());

				sb = new StringBundler();
			}
		}

		return comments;
	}

	protected String extractDefaultProperties(String[] lines) {
		StringBundler sb = new StringBundler();

		boolean previousLineIsDefaultProperty = false;

		for (String line : lines) {
			if (!previousLineIsDefaultProperty) {
				if (!line.startsWith("#") && !line.startsWith(INDENT + "#")) {
					previousLineIsDefaultProperty = true;

					sb.append(line);
					sb.append(StringPool.NEW_LINE);
				}
			}
			else {
				if (line.startsWith("#") || line.startsWith(INDENT + "#")) {
					previousLineIsDefaultProperty = false;

					continue;
				}

				sb.append(line);
				sb.append(StringPool.NEW_LINE);
			}
		}

		return sb.toString();
	}

	protected String extractExampleProperties(String[] lines) {
		StringBundler sb = new StringBundler();

		boolean previousLineIsExample = false;

		for (String line : lines) {
			String trimmedLine = line.trim();

			if (!previousLineIsExample) {
				if (line.startsWith(INDENT + "# ") || trimmedLine.equals("#")) {
					continue;
				}

				if (line.startsWith(INDENT + "#")) {
					previousLineIsExample = true;

					String exampleProperty =
						StringUtil.replaceFirst(line, "#", StringPool.BLANK) +
							StringPool.NEW_LINE;

					sb.append(exampleProperty);
				}
			}
			else {
				if (!trimmedLine.startsWith("#")) {
					previousLineIsExample = false;

					continue;
				}

				String exampleProperty =
					line.replaceFirst("#", StringPool.BLANK) +
						StringPool.NEW_LINE;

				sb.append(exampleProperty);
			}
		}

		return sb.toString();
	}

	protected List extractPropertyComments(String[] lines) {
		List propertyComments =
			new ArrayList();

		StringBundler sb = new StringBundler();

		boolean previousLineIsPreformatted = false;

		for (String line : lines) {
			line = StringUtil.trimTrailing(line);

			if (line.startsWith(DOUBLE_INDENT + "#")) {
				break;
			}

			String trimmedLine = line.trim();

			if (trimmedLine.startsWith("# " + INDENT)) {
				if (previousLineIsPreformatted) {
					sb.append(
						StringUtil.replaceFirst(
							trimmedLine, "#", StringPool.BLANK));
				}
				else {
					addPropertyComment(propertyComments, sb.toString());

					sb = new StringBundler();

					sb.append(
						StringUtil.replaceFirst(
							trimmedLine, "#", StringPool.BLANK));
				}

				sb.append(StringPool.NEW_LINE);

				previousLineIsPreformatted = true;
			}
			else if (trimmedLine.startsWith("# ")) {
				if (previousLineIsPreformatted) {
					addPropertyComment(propertyComments, sb.toString());

					sb = new StringBundler();

					trimmedLine = StringUtil.replaceFirst(
						trimmedLine, "#", StringPool.BLANK);

					sb.append(trimmedLine.trim());
				}
				else {
					if (sb.length() > 0) {
						sb.append(StringPool.SPACE);
					}

					line = StringUtil.replaceFirst(line, "#", StringPool.BLANK);

					sb.append(line.trim());
				}

				sb.append(StringPool.NEW_LINE);

				previousLineIsPreformatted = false;
			}
			else if (trimmedLine.startsWith("#") &&
					 (trimmedLine.length() < 2)) {

				addPropertyComment(propertyComments, sb.toString());

				sb = new StringBundler();
			}
			else {
				addPropertyComment(propertyComments, sb.toString());

				break;
			}
		}

		return propertyComments;
	}

	protected String extractTitle(String[] lines) {
		if ((lines == null) || (lines.length <= 1)) {
			return null;
		}

		String title = lines[1];

		title = StringUtil.replaceFirst(title, "##", StringPool.BLANK);

		return title.trim();
	}

	protected int getLineCount(String sectionString) {
		String[] lines = sectionString.split("\r\n|\r|\n");

		return lines.length;
	}

	protected List getPropertiesSections(File propertiesFile)
		throws IOException {

		String content = _fileUtil.read(propertiesFile);

		String[] sections = content.split("\n\n");

		List propertiesSections =
			new ArrayList(sections.length);

		for (String section : sections) {
			section = StringUtil.trimLeading(section, CharPool.SPACE);

			PropertiesSection propertiesSection = new PropertiesSection(
				section);

			String[] lines = section.split(StringPool.NEW_LINE);

			if (section.startsWith("##")) {
				int lineCount = getLineCount(section);

				if (lineCount == 3) {
					propertiesSection.setTitle(extractTitle(lines));

					propertiesSections.add(propertiesSection);
				}
				else if (lineCount > 3) {
					propertiesSection.setComments(extractComments(lines));

					propertiesSections.add(propertiesSection);
				}
				else {
					StringBundler sb = new StringBundler(8);

					sb.append("Properties section should consist of 3 ");
					sb.append("or more lines:");
					sb.append(StringPool.NEW_LINE);
					sb.append("##");
					sb.append(StringPool.NEW_LINE);
					sb.append("## Comments");
					sb.append(StringPool.NEW_LINE);
					sb.append("##");

					System.out.println(sb.toString());

					return null;
				}
			}
			else {
				propertiesSection.setDefaultProperties(
					extractDefaultProperties(lines));
				propertiesSection.setExampleProperties(
					extractExampleProperties(lines));
				propertiesSection.setPropertyComments(
					extractPropertyComments(lines));

				propertiesSections.add(propertiesSection);
			}
		}

		return propertiesSections;
	}

	protected static final String DOUBLE_INDENT =
		PropertiesDocBuilder.INDENT + PropertiesDocBuilder.INDENT;

	protected static final String INDENT = StringPool.FOUR_SPACES;

	private static FileImpl _fileUtil = FileImpl.getInstance();

}