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Jobs/com/gamingmesh/jobs/config/CommentedYamlConfiguration.java
2015-08-21 16:10:08 +03:00

219 lines
7.5 KiB
Java

/**
* Jobs Plugin for Bukkit
* Copyright (C) 2011 Zak Ford <zak.j.ford@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.gamingmesh.jobs.config;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import org.bukkit.configuration.file.YamlConfiguration;
import com.google.common.io.Files;
/*
* Based on CommentedYamlConfiguration by dumptruckman
* https://github.com/dumptruckman/PluginBase/blob/master/bukkit/src/main/java/com/dumptruckman/minecraft/pluginbase/config/CommentedYamlConfiguration.java
*/
public class CommentedYamlConfiguration extends YamlConfiguration {
private HashMap<String, String> comments;
public CommentedYamlConfiguration() {
super();
comments = new HashMap<String, String>();
}
@Override
public void save(String file) throws IOException {
if (file == null) {
throw new IllegalArgumentException("File cannot be null");
}
save(new File(file));
}
@Override
public void save(File file) throws IOException {
if (file == null) {
throw new IllegalArgumentException("File cannot be null");
}
Files.createParentDirs(file);
String data = insertComments(saveToString());
//FileWriter writer = new FileWriter(file);
PrintWriter writer = new PrintWriter(file, "UTF-8");
//Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
try {
writer.write(data);
} finally {
writer.close();
}
}
private String insertComments(String yaml) {
// if there's comments to add, we need to add comments
if (!comments.isEmpty()) {
// String array of each line in the config file
String[] yamlContents = yaml.split("[" + System.getProperty("line.separator") + "]");
// This will hold the entire newly formatted config
StringBuilder newContents = new StringBuilder();
// This holds the current path the lines are at in the config
StringBuilder currentPath = new StringBuilder();
// This tells if the specified path has already been commented
boolean commentedPath = false;
// This flags if the line is a node or unknown text.
boolean node = false;
// The depth of the path. (number of words separated by periods - 1)
int depth = 0;
// This will cause the first line to be ignored.
boolean firstLine = true;
// Loop through the config lines
for (final String line : yamlContents) {
if (firstLine) {
firstLine = false;
if (line.startsWith("#")) {
continue;
}
}
// If the line is a node (and not something like a list value)
if (line.contains(": ") || (line.length() > 1 && line.charAt(line.length() - 1) == ':')) {
// This is a new node so we need to mark it for commenting (if there are comments)
commentedPath = false;
// This is a node so flag it as one
node = true;
// Grab the index of the end of the node name
int index = 0;
index = line.indexOf(": ");
if (index < 0) {
index = line.length() - 1;
}
// If currentPath is empty, store the node name as the currentPath. (this is only on the first iteration, i think)
if (currentPath.toString().isEmpty()) {
currentPath = new StringBuilder(line.substring(0, index));
} else {
// Calculate the whitespace preceding the node name
int whiteSpace = 0;
for (int n = 0; n < line.length(); n++) {
if (line.charAt(n) == ' ') {
whiteSpace++;
} else {
break;
}
}
// Find out if the current depth (whitespace * 2) is greater/lesser/equal to the previous depth
if (whiteSpace / 2 > depth) {
// Path is deeper. Add a . and the node name
currentPath.append(".").append(line.substring(whiteSpace, index));
depth++;
} else if (whiteSpace / 2 < depth) {
// Path is shallower, calculate current depth from whitespace (whitespace / 2) and subtract that many levels from the currentPath
int newDepth = whiteSpace / 2;
for (int i = 0; i < depth - newDepth; i++) {
currentPath.replace(currentPath.lastIndexOf("."), currentPath.length(), "");
}
// Grab the index of the final period
int lastIndex = currentPath.lastIndexOf(".");
if (lastIndex < 0) {
// if there isn't a final period, set the current path to nothing because we're at root
currentPath = new StringBuilder();
} else {
// If there is a final period, replace everything after it with nothing
currentPath.replace(currentPath.lastIndexOf("."), currentPath.length(), "").append(".");
}
// Add the new node name to the path
currentPath.append(line.substring(whiteSpace, index));
// Reset the depth
depth = newDepth;
} else {
// Path is same depth, replace the last path node name to the current node name
int lastIndex = currentPath.lastIndexOf(".");
if (lastIndex < 0) {
// if there isn't a final period, set the current path to nothing because we're at root
currentPath = new StringBuilder();
} else {
// If there is a final period, replace everything after it with nothing
currentPath.replace(currentPath.lastIndexOf("."), currentPath.length(), "").append(".");
}
//currentPath = currentPath.replace(currentPath.substring(currentPath.lastIndexOf(".")), "");
currentPath.append(line.substring(whiteSpace, index));
}
}
} else {
node = false;
}
StringBuilder newLine = new StringBuilder(line);
if (node) {
String comment = null;
if (!commentedPath) {
// If there's a comment for the current path, retrieve it and flag that path as already commented
comment = comments.get(currentPath.toString());
}
if (comment != null && !comment.isEmpty()) {
// Add the comment to the beginning of the current line
newLine.insert(0, System.getProperty("line.separator")).insert(0, comment);
comment = null;
commentedPath = true;
}
}
newLine.append(System.getProperty("line.separator"));
// Add the (modified) line to the total config String
newContents.append(newLine.toString());
}
return newContents.toString();
}
return yaml;
}
/**
* Adds a comment just before the specified path. The comment can be multiple lines. An empty string will indicate a blank line.
*
* @param path Configuration path to add comment.
* @param commentLines Comments to add. One String per line.
*/
public void addComment(String path, String... commentLines) {
StringBuilder commentstring = new StringBuilder();
String leadingSpaces = "";
for (int n = 0; n < path.length(); n++) {
if (path.charAt(n) == '.') {
leadingSpaces += " ";
}
}
for (String line : commentLines) {
if (!line.isEmpty()) {
line = leadingSpaces + "# " + line;
}
if (commentstring.length() > 0) {
commentstring.append(System.getProperty("line.separator"));
}
commentstring.append(line);
}
comments.put(path, commentstring.toString());
}
}