mirror of
https://github.com/JonasunderscoreJones/BetterConsoleMC.git
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256 lines
8 KiB
Java
256 lines
8 KiB
Java
package me.jonasjones.betterconsolemc.modconfig;
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/*
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* Copyright (c) 2021 magistermaks
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* Slightly modified by Jonas_Jones 2022
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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import net.fabricmc.loader.api.FabricLoader;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.HashMap;
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import java.util.Scanner;
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public class SimpleConfig {
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public static final Logger LOGGER = LogManager.getLogger("SimpleConfig");
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private final HashMap<String, String> config = new HashMap<>();
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private final ConfigRequest request;
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private boolean broken = false;
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private SimpleConfig(ConfigRequest request) {
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this.request = request;
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String identifier = "Config '" + request.filename + "'";
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if (!request.file.exists()) {
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LOGGER.info(identifier + " is missing, generating default one...");
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try {
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createConfig();
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} catch (IOException e) {
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LOGGER.error(identifier + " failed to generate!");
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LOGGER.trace(e);
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broken = true;
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}
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}
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if (!broken) {
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try {
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loadConfig();
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} catch (Exception e) {
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if (!identifier.equals("Config 'betterconsolemc-commands_config'")) { // this is good code, I swear
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LOGGER.error(identifier + " failed to load!");
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LOGGER.trace(e);
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}
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broken = true;
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}
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}
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}
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/**
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* Creates new config request object, ideally `namespace`
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* should be the name of the mod id of the requesting mod
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*
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* @param filename - name of the config file
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* @return new config request object
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*/
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public static ConfigRequest of(String filename) {
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Path path = FabricLoader.getInstance().getConfigDir();
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return new ConfigRequest(path.resolve(filename + ".properties").toFile(), filename);
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}
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private void createConfig() throws IOException {
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// try creating missing files
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request.file.getParentFile().mkdirs();
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Files.createFile(request.file.toPath());
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// write default config data
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PrintWriter writer = new PrintWriter(request.file, StandardCharsets.UTF_8);
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writer.write(request.getConfig());
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writer.close();
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}
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private void loadConfig() throws IOException {
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Scanner reader = new Scanner(request.file);
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for (int line = 1; reader.hasNextLine(); line++) {
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parseConfigEntry(reader.nextLine(), line);
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}
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}
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private void parseConfigEntry(String entry, int line) {
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if (!entry.isEmpty() && !entry.startsWith("#")) {
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String[] parts = entry.split("=", 2);
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if (parts.length == 2) {
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//Recognise comments after a value
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String temp = parts[1].split(" #")[0];
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config.put(parts[0], temp);
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} else {
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throw new RuntimeException("Syntax error in config file on line " + line + "!");
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}
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}
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}
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/**
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* Queries a value from config, returns `null` if the
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* key does not exist.
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*
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* @return value corresponding to the given key
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* @see SimpleConfig#getOrDefault
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*/
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@Deprecated
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public String get(String key) {
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return config.get(key);
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}
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/**
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* Returns string value from config corresponding to the given
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* key, or the default string if the key is missing.
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*
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* @return value corresponding to the given key, or the default value
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*/
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public String getOrDefault(String key, String def) {
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String val = get(key);
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return val == null ? def : val;
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}
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/**
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* Returns integer value from config corresponding to the given
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* key, or the default integer if the key is missing or invalid.
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*
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* @return value corresponding to the given key, or the default value
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*/
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public int getOrDefault(String key, int def) {
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try {
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return Integer.parseInt(get(key));
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} catch (Exception e) {
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return def;
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}
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}
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/**
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* Returns boolean value from config corresponding to the given
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* key, or the default boolean if the key is missing.
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*
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* @return value corresponding to the given key, or the default value
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*/
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public boolean getOrDefault(String key, boolean def) {
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String val = get(key);
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if (val != null) {
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return val.equalsIgnoreCase("true");
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}
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return def;
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}
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/**
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* Returns double value from config corresponding to the given
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* key, or the default string if the key is missing or invalid.
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*
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* @return value corresponding to the given key, or the default value
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*/
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public double getOrDefault(String key, double def) {
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try {
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return Double.parseDouble(get(key));
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} catch (Exception e) {
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return def;
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}
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}
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/**
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* If any error occurred during loading or reading from the config
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* a 'broken' flag is set, indicating that the config's state
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* is undefined and should be discarded using `delete()`
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*
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* @return the 'broken' flag of the configuration
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*/
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public boolean isBroken() {
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return broken;
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}
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/**
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* deletes the config file from the filesystem
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*
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* @return true if the operation was successful
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*/
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public boolean delete() {
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LOGGER.warn("Config '" + request.filename + "' was removed from existence! Restart the game to regenerate it.");
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return request.file.delete();
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}
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public interface DefaultConfig {
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static String empty(String namespace) {
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return "";
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}
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String get(String namespace);
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}
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public static class ConfigRequest {
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private final File file;
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private final String filename;
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private DefaultConfig provider;
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private ConfigRequest(File file, String filename) {
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this.file = file;
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this.filename = filename;
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this.provider = DefaultConfig::empty;
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}
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/**
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* Sets the default config provider, used to generate the
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* config if it's missing.
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*
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* @param provider default config provider
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* @return current config request object
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* @see DefaultConfig
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*/
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public ConfigRequest provider(DefaultConfig provider) {
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this.provider = provider;
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return this;
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}
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/**
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* Loads the config from the filesystem.
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*
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* @return config object
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* @see SimpleConfig
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*/
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public SimpleConfig request() {
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return new SimpleConfig(this);
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}
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private String getConfig() {
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return provider.get(filename) + "\n";
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}
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}
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}
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