Initial commit

src/com/redstoner/misc/JsonManager.java

@@ -0,0 +1,109 @@
+package com.redstoner.misc;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+
+import com.redstoner.annotations.Version;
+
+/** This class provides simple JSON handling, like storing and loading from and to files.
+ * 
+ * @author Pepich */
+@Version(major = 1, minor = 0, revision = 0, compatible = -1)
+public class JsonManager
+{
+	private JsonManager()
+	{}
+	
+	/** Loads a JSONObject from a file.
+	 * 
+	 * @param source the file to load from.
+	 * @return the JSONObject or null if the source does not contain a valid JSONObject. */
+	public static JSONObject getObject(File source)
+	{
+		if (!source.exists())
+			return null;
+		JSONParser parser = new JSONParser();
+		try
+		{
+			FileReader reader = new FileReader(source);
+			Object rawObject = parser.parse(reader);
+			reader.close();
+			JSONObject jsonObject = (JSONObject) rawObject;
+			return jsonObject;
+		}
+		catch (IOException | ParseException e)
+		{}
+		return null;
+	}
+	
+	/** Saves a JSONObject to a file. Will create the necessary FileStructure like folders and the file itself.
+	 * 
+	 * @param object the JSONObject to save.
+	 * @param destination the file to write to. */
+	public static void save(JSONObject object, File destination)
+	{
+		if (destination.exists())
+			destination.delete();
+		else if (!destination.getParentFile().exists())
+			destination.getParentFile().mkdirs();
+		try
+		{
+			destination.createNewFile();
+			FileWriter writer = new FileWriter(destination);
+			object.writeJSONString(writer);
+			writer.flush();
+			writer.close();
+		}
+		catch (IOException e)
+		{}
+	}
+	
+	/** Loads a JSONArray from a file.
+	 * 
+	 * @param source the file to load from.
+	 * @return the JSONArray or null if the source does not contain a valid JSONArray. */
+	public static JSONArray getArray(File source)
+	{
+		if (!source.exists())
+			return null;
+		JSONParser parser = new JSONParser();
+		try
+		{
+			Object rawObject = parser.parse(new FileReader(source));
+			JSONArray jsonArray = (JSONArray) rawObject;
+			return jsonArray;
+		}
+		catch (IOException | ParseException e)
+		{}
+		return null;
+	}
+	
+	/** Saves a JSONArray to a file. Will create the necessary FileStructure like folders and the file itself.
+	 * 
+	 * @param object the JSONArray to save.
+	 * @param destination the file to write to. */
+	public static void save(JSONArray array, File destination)
+	{
+		if (destination.exists())
+			destination.delete();
+		else if (!destination.getParentFile().exists())
+			destination.getParentFile().mkdirs();
+		try
+		{
+			destination.createNewFile();
+			FileWriter writer = new FileWriter(destination);
+			array.writeJSONString(writer);
+			writer.flush();
+			writer.close();
+		}
+		catch (IOException e)
+		{}
+	}
+}