added confighandler. UNTESTEDdiff --cached!
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7936281924
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@ -81,9 +81,12 @@ public class FileOutputVolleyRequest extends Request<JSONObject> {
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String requestBody = stringBuilder.toString();
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return requestBody.getBytes("utf-8");
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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Log.e("FileOutputVolleyRequest",
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"could not find the output file: " + e.getMessage());
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} catch (IOException e) {
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e.printStackTrace();
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Log.e("FileOutputVolleyRequest",
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"error while reading the output file: "
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+ e.getMessage());
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}
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return null;
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}
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@ -0,0 +1,256 @@
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package com.example.aped.utils;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.io.BufferedReader;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* handles the read and write operations for the configuration file.
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*/
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public class ConfigurationHandler implements IFAVORITES {
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/**
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* Subclass for storing the configuration data in an OOP conform manner.
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*/
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private class ConfigData {
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/** The address of the raspberry. **/
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private String address;
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/** The port of the raspberry. **/
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private int port;
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/** The names of the favorite devices. **/
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private List<String> favoriteNames;
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/**
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* Getter for the address variable.
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* @return the address of the raspberry
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*/
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public String getAddress() {
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return address;
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}
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/**
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* Setter for the address variable.
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* @param pAddress the new address for the raspberry
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*/
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public void setAddress(final String pAddress) {
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this.address = address;
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}
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/**
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* Getter for the port variable.
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* @return the port of the raspberry
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*/
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public int getPort() {
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return port;
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}
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/**
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* Setter for the port variable.
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* @param pPort the new port for the raspberry
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*/
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public void setPort(final int pPort) {
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this.port = pPort;
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}
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/**
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* Getter for the favoriteNames variable.
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* @return the favorite device names
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*/
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public List<String> getFavoriteNames() {
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return favoriteNames;
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}
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/**
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* Setter for the favoriteNames variable.
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* @param pFavoriteNames the new favorite device names
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*/
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public void setFavoriteNames(final List<String> pFavoriteNames) {
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this.favoriteNames = pFavoriteNames;
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}
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/**
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* Method to convert an object of {@link ConfigData} class to String.
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* @return a String in JSON format
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*/
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@NonNull
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@Override
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public String toString() {
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return "{\n"
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+ "\"address\":\"" + address + "\"\n"
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+ "\"port\":\"" + port + "\"\n"
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+ "\"favorites\":" + favoriteNames.toString() + "\"\n"
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+ "}";
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}
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}
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/** The current configurations. **/
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private ConfigData configurations;
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/** The file path of the configuration file. **/
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private final String filePath;
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/**
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* Constructor.
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* @param configFilePath the file path of the configuration file
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*/
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public ConfigurationHandler(final String configFilePath) {
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this.filePath = configFilePath;
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readJsonFile();
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}
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//region public methods
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/**
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* Method to get the current address of the raspberry from the configs.
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* @return the address of the raspberry
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*/
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public String getAddress() {
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return configurations.getAddress();
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}
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/**
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* Method to set the current address of the raspberry in the configs.
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* @param address the new address to be set
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* @return the adress after setting
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*/
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public String setAddress(final String address) {
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configurations.setAddress(address);
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writeJsonFile();
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return getAddress();
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}
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/**
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* Method to get the current port of the raspberry from the configs.
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* @return the address of the raspberry
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*/
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public int getPort() {
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return configurations.getPort();
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}
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/**
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* Method to set the current port of the raspberry in the configs.
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* @param port the port to set
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* @return the port after setting
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*/
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public int setPort(final int port) {
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configurations.setPort(port);
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writeJsonFile();
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return getPort();
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}
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/**
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* Method to get the favorite device names from the configs.
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* @return the favorite device names as a {@link List<String>}
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*/
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@Override
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public List<String> getFavorites() {
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return configurations.getFavoriteNames();
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}
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/**
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* Method to add a name to the list of favorite device names in the config.
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* @param deviceName the name of the device to be added
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* @return the deviceName that has been added
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*/
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@Override
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public String addFavorite(final String deviceName) {
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List<String> favoriteNames = configurations.getFavoriteNames();
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if (!favoriteNames.contains(deviceName)) {
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favoriteNames.add(deviceName);
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configurations.setFavoriteNames(favoriteNames);
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writeJsonFile();
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}
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return deviceName;
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}
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/**
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* Method to remove a name from the list of favorites in the configs.
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* @param deviceName the name of the device to be removed
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* @return the name of the device that was removed
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*/
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@Override
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public String removeFavorite(final String deviceName) {
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List<String> favoriteNames = configurations.getFavoriteNames();
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if (favoriteNames.contains(deviceName)) {
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favoriteNames.remove(deviceName);
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configurations.setFavoriteNames(favoriteNames);
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writeJsonFile();
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}
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return deviceName;
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}
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//endregion
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//region private methods
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/**
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* Method to read the content of the configuration file.
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*/
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private void readJsonFile() {
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try {
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String jsonData = "";
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BufferedReader bufferedReader = new BufferedReader(
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new FileReader(filePath));
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String line;
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while ((line = bufferedReader.readLine()) != null) {
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jsonData += line + "\n";
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}
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bufferedReader.close();
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JSONObject jsonObject = new JSONObject(jsonData);
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configurations.setAddress(jsonObject.getString("address"));
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configurations.setPort(jsonObject.getInt("port"));
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List<String> favoriteNames = new ArrayList<>();
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JSONArray favorites = jsonObject.getJSONArray("favorites");
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for (int i = 0; i < favorites.length(); i++) {
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favoriteNames.add(favorites.getString(i));
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}
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configurations.setFavoriteNames(favoriteNames);
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} catch (FileNotFoundException e) {
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Log.e("Configuration Handler",
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"could not find the configuration file during READ: "
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+ e.getMessage());
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} catch (IOException e) {
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Log.e("Configuration Handler",
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"error while reading the configuration file: "
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+ e.getMessage());
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} catch (JSONException e) {
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Log.e("Configuration Handler",
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"error while parsing the data from the file "
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+ "to the configurations " + e.getMessage());
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}
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}
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/**
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* Method to write the current configurations to the configuration file.
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*/
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private void writeJsonFile() {
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try {
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String jsonString = configurations.toString();
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FileOutputStream fileOutputStream = new FileOutputStream(
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filePath, false
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);
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fileOutputStream.write(jsonString.getBytes());
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fileOutputStream.close();
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} catch (FileNotFoundException e) {
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Log.e("Configuration Handler",
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"could not find the configuration file during WRITE: "
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+ e.getMessage());
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} catch (IOException e) {
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Log.e("ConfigurationHandler",
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"error while writing to the configuration file: "
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+ e.getMessage());
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}
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}
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//endregion
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}
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