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Meter.java
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Meter.java
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package system;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
/**
*
* @author Group009
* @version 2.0
*/
public abstract class Meter implements Global
{
public String reading;
public int household_id;
public int type;
public double GasTariff;
public double EleTariff;
public EleRun elerun;
public GasRun gasrun;
public Meter(){}
/**
*
* @param household_id the household_id of new user
*/
public Meter(int household_id){
this.household_id=household_id;
this.reading = "0000";
}
/**
*
* @return the reading of the meter
*/
public String getReading(){return this.reading;}
/**
*
* @return tariff of the electricity meter
*/
public double getEleTariff(){return this.EleTariff;}
/**
*
* @return tariff of the gas meter
*/
public double getGasTariff(){return this.GasTariff;}
/**
*
* @param path the part of path of the file
* @param hhid the household_id of the user
* @param type the meter type
* @return return true if create successfully, else return false
*/
public static boolean createFile(String path,int hhid,int type){
Boolean bool = false;
String Shid =Integer.toString(hhid);
String Stype=Integer.toString(type);
String filename=Shid+Stype;
File file=new File(path+filename+".txt");
if(!file.exists()){
try{
file.createNewFile();
bool=true;
}
catch(IOException e){
e.printStackTrace();
}
}
return bool;
}
/**
*
* @param path the part of path of the file
* @param hhid the household_id of the user
* @param type the meter type
* @return return true if delete successfully, else return false
*/
public static boolean delFile(String path,int hhid,int type){
Boolean bool = false;
String Shid =Integer.toString(hhid);
String Stype=Integer.toString(type);
String filename=Shid+Stype;
File file = new File(path+filename+".txt");
try {
if(file.exists()){
file.delete();
bool = true;
}
} catch (Exception e) {
e.printStackTrace();
}
return bool;
}
/**
*
* @param path the part of path of the file
* @param hhid the household_id of the user
* @param type the meter type
* @param newstr the content that you want to write into the file
* @return return true if write successfully, else return false
* @throws IOException the path may be not exist
*/
public static boolean writeFileContent(String path,int hhid,int type,String newstr)throws IOException{
Boolean bool = false;
String Shid =Integer.toString(hhid);
String Stype=Integer.toString(type);
String filename=Shid+Stype;
String filepath=path+filename+".txt";
String filein = newstr+"\r\n";//line feed of txt in windows
String temp = "";
FileInputStream fis = null;
InputStreamReader isr = null;
BufferedReader br = null;
FileOutputStream fos = null;
PrintWriter pw = null;
try {
File file = new File(filepath);//full path of file
fis = new FileInputStream(file);
isr = new InputStreamReader(fis);
br = new BufferedReader(isr);
StringBuffer buffer = new StringBuffer();
//content of the file
for(int i=0;(temp =br.readLine())!=null;i++){
buffer.append(temp);
buffer = buffer.append(System.getProperty("line.separator"));//line feed which can used in windows or linux system
}
buffer.append(filein);
fos = new FileOutputStream(file);
pw = new PrintWriter(fos);
char[] charArray =buffer.toString().toCharArray();
pw.write(charArray);//turn to array of String
pw.flush();//clear the buffer
bool = true;
} catch (Exception e) {
e.printStackTrace();
}finally {
//close the file
if (pw != null) {
pw.close();
}
if (fos != null) {
fos.close();
}
if (br != null) {
br.close();
}
if (isr != null) {
isr.close();
}
if (fis != null) {
fis.close();
}
}
return bool;
}
/**
*
* @param path the full path of the file
* @param newstr the content that you want to write into the file
* @return return true if write successfully, else return false
* @throws IOException the path may be not exist
*/
public static boolean write(String path,String newstr)throws IOException{
Boolean bool = false;
String filepath=path;
String filein = newstr+"\r\n";//line feed of txt in windows
String temp = "";
FileInputStream fis = null;
InputStreamReader isr = null;
BufferedReader br = null;
FileOutputStream fos = null;
PrintWriter pw = null;
try {
File file = new File(filepath);//full path of file
fis = new FileInputStream(file);
isr = new InputStreamReader(fis);
br = new BufferedReader(isr);
StringBuffer buffer = new StringBuffer();
//content of the file
for(int i=0;(temp =br.readLine())!=null;i++){
buffer.append(temp);
buffer = buffer.append(System.getProperty("line.separator"));//line feed which can used in windows or linux system
}
buffer.append(filein);
fos = new FileOutputStream(file);
pw = new PrintWriter(fos);
char[] charArray =buffer.toString().toCharArray();
pw.write(charArray);//turn into array of String
pw.flush();//clear the buffer
bool = true;
} catch (Exception e) {
e.printStackTrace();
}finally {
//close the file
if (pw != null) {
pw.close();
}
if (fos != null) {
fos.close();
}
if (br != null) {
br.close();
}
if (isr != null) {
isr.close();
}
if (fis != null) {
fis.close();
}
}
return bool;
}
/**
*
* @param path path the part path of the file
* @param hhid the household_id of the user
* @param type the meter type
* @return An array of all the content in file which is splitted by ","
*/
public static String[] readFile(String path,int hhid,int type)
{
String Shid =Integer.toString(hhid);
String Stype=Integer.toString(type);
String filename=Shid+Stype;
String filepath=path+filename+".txt";
File file =new File(filepath);
StringBuilder result = new StringBuilder();
try {
BufferedReader br =new BufferedReader(new FileReader(file));
String s =null;
while((s =br.readLine()) != null) {
//result.append(System.lineSeparator() +s);
result.append(s);
}
br.close();
} catch (FileNotFoundException e){
e.printStackTrace();
} catch (IOException e){
e.printStackTrace();
}
String reading = result.toString();
String readings[] = reading.split(",");
return readings;
}
/**
*
* @param path the part of path of file you want to read
* @param hhid the household_id of the user
* @param type the meter type
* @return the Arraylist of every line in file
*/
public static ArrayList<String> readFileHistory(String path,int hhid,int type)
{
String Shid =Integer.toString(hhid);
String Stype=Integer.toString(type);
String filename=Shid+Stype;
String filepath=path+filename+".txt";
ArrayList<String> history = new ArrayList<String>();
File file =new File(filepath);
try {
BufferedReader br =new BufferedReader(new FileReader(file));
String s =null;
while((s =br.readLine()) != null) {
//result.append(System.lineSeparator() +s);
history.add(s);
}
br.close();
} catch (FileNotFoundException e){
e.printStackTrace();
} catch (IOException e){
e.printStackTrace();
}
return history;
}
/**
*
* @param path the full path of file you want to read
* @return the Arraylist of every line in file
*/
public static ArrayList<String> read(String path)
{
ArrayList<String> history = new ArrayList<String>();
File file =new File(path);
try {
BufferedReader br =new BufferedReader(new FileReader(file));
String s =null;
while((s =br.readLine()) != null) {
//result.append(System.lineSeparator() +s);
history.add(s);
}
br.close();
} catch (FileNotFoundException e){
e.printStackTrace();
} catch (IOException e){
e.printStackTrace();
}
return history;
}
}