Initial commit.

.gitignore

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+*.properties
+/bin
+
+.gradle
+build/
+out/
+
+.idea
+*.iml
+*.ipr
+*.iws
+
+.metadata/
+.settings/
+bin/
+.classpath
+.project
+dependency-reduced-pom.xml
+RemoteSystemsTempFiles/.project
+classes/
+target/
+
+
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*

LICENSE

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+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
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+   document.
+
+   c) For a Combined Work that displays copyright notices during
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+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>net.b0at</groupId>
+    <artifactId>torsion</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.5</version>
+        </dependency>
+        <dependency>
+            <groupId>com.esotericsoftware.yamlbeans</groupId>
+            <artifactId>yamlbeans</artifactId>
+            <version>1.12</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.8.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>21.0</version>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/net/b0at/torsion/FileStorage.java

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+package net.b0at.torsion;
+
+import net.b0at.torsion.parser.StorageParser;
+import net.b0at.torsion.parser.file.FileParserFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+
+/**
+ * Created by Jordin on 8/4/2017.
+ * Jordin is still best hacker.
+ */
+public class FileStorage<T> implements Storage<T> {
+    private static File baseDirectory = new File(".");
+    private final File file;
+    private final Class<T> clazz;
+
+    private StorageParser<T> fileParser;
+
+    private FileStorage(Class<T> clazz, File file) throws IOException {
+        this.file = file;
+        this.clazz = clazz;
+
+        this.file.getParentFile().mkdirs();
+
+        if (!this.file.exists()) {
+            this.file.createNewFile();
+        }
+
+        try {
+            this.fileParser = FileParserFactory.<T>of(this.file);
+        } catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static <T> FileStorage<T> of(Class<T> clazz, File file) throws IOException {
+        return new FileStorage<>(clazz, file);
+    }
+
+    public static <T> FileStorage<T> of(Class<T> clazz, String fileLocation) throws IOException {
+        return new FileStorage<>(clazz, new File(baseDirectory, fileLocation));
+    }
+
+    public static File getBaseDirectory() {
+        return FileStorage.baseDirectory;
+    }
+
+    public static void setBaseDirectory(File baseDirectory) {
+        FileStorage.baseDirectory = baseDirectory;
+    }
+
+    @Override
+    public void save(T object) {
+        this.fileParser.save(object);
+    }
+
+    @Override
+    public T load() {
+        return this.fileParser.load(this.clazz);
+    }
+}

src/main/java/net/b0at/torsion/Storage.java

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+package net.b0at.torsion;
+
+/**
+ * Created by Jordin on 8/4/2017.
+ * Jordin is still best hacker.
+ */
+public interface Storage<T> {
+    T load();
+
+    void save(T object);
+}

src/main/java/net/b0at/torsion/parser/StorageParser.java

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+package net.b0at.torsion.parser;
+
+/**
+ * Created by Jordin on 8/4/2017.
+ * Jordin is still best hacker.
+ */
+public interface StorageParser<T> {
+    T load(Class<T> clazz);
+
+    void save(T object);
+}

src/main/java/net/b0at/torsion/parser/file/FileParserFactory.java

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+package net.b0at.torsion.parser.file;
+
+import com.google.common.collect.ImmutableMap;
+import net.b0at.torsion.parser.StorageParser;
+import org.apache.commons.io.FilenameUtils;
+
+import java.io.File;
+import java.lang.reflect.InvocationTargetException;
+import java.util.Map;
+
+/**
+ * Created by Jordin on 8/4/2017.
+ * Jordin is still best hacker.
+ */
+public class FileParserFactory {
+    private static final Map<String, Class<? extends FileStorageParser>> PARSER_MAP = ImmutableMap.<String, Class<? extends FileStorageParser>>builder()
+            .put("json", JSONFileParser.class)
+            .put("yml", YMLFileParser.class)
+            .build();
+
+    public static StorageParser of(File file) throws InstantiationException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
+        return from(file, FilenameUtils.getExtension(file.getAbsolutePath()).toLowerCase());
+    }
+
+    public static <T> StorageParser from(File file, String extension) throws InstantiationException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
+        if (extension.equals("xml")) {
+            throw new RuntimeException("Please use a better file type/extension.");
+        }
+
+        Class<? extends FileStorageParser> parserClass = PARSER_MAP.getOrDefault(extension, NullFileParser.class);
+
+        return parserClass.getDeclaredConstructor(File.class).<T>newInstance(file);
+    }
+}