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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package org.anjocaido.groupmanager.utils;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.List;
import org.anjocaido.groupmanager.GroupManager;
import org.anjocaido.groupmanager.data.Group;
/**
*
* @author gabrielcouto
*/
public abstract class Tasks
{
/**
* Gets the exception stack trace as a string.
*
* @param exception
* @return stack trace as a string
*/
public static String getStackTraceAsString(Exception exception)
{
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
exception.printStackTrace(pw);
return sw.toString();
}
public static void copy(InputStream src, File dst) throws IOException
{
InputStream in = src;
OutputStream out = new FileOutputStream(dst);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0)
{
out.write(buf, 0, len);
}
out.close();
try
{
in.close();
}
catch (Exception e)
{
}
}
public static void copy(File src, File dst) throws IOException
{
InputStream in = new FileInputStream(src);
copy(in, dst);
}
/**
* Appends a string to a file
*
* @param data
* @param file
*/
public static void appendStringToFile(String data, String file) throws IOException
{
FileWriter outStream = new FileWriter("." + System.getProperty("file.separator") + file, true);
BufferedWriter out = new BufferedWriter(outStream);
data.replaceAll("\n", System.getProperty("line.separator"));
out.append(new SimpleDateFormat("yyyy-MM-dd HH-mm").format(System.currentTimeMillis()));
out.append(System.getProperty("line.separator"));
out.append(data);
out.append(System.getProperty("line.separator"));
out.close();
}
public static void removeOldFiles(GroupManager gm, File folder)
{
if (folder.isDirectory())
{
long oldTime = System.currentTimeMillis() - (((long)gm.getGMConfig().getBackupDuration() * 60 * 60) * 1000);
for (File olds : folder.listFiles())
{
if (olds.isFile())
{
if (olds.lastModified() < oldTime)
{
try
{
olds.delete();
}
catch (Exception e)
{
}
}
}
}
}
}
public static String getDateString()
{
GregorianCalendar now = new GregorianCalendar();
String date = "";
date += now.get(Calendar.DAY_OF_MONTH);
date += "-";
date += now.get(Calendar.HOUR);
date += "-";
date += now.get(Calendar.MINUTE);
return date;
}
public static String getStringListInString(List<String> list)
{
if (list == null)
{
return "";
}
String result = "";
for (int i = 0; i < list.size(); i++)
{
result += list.get(i);
if (i < list.size() - 1)
{
result += ", ";
}
}
return result;
}
public static String getStringArrayInString(String[] list)
{
if (list == null)
{
return "";
}
String result = "";
for (int i = 0; i < list.length; i++)
{
result += list[i];
if (i < ((list.length) - 1))
{
result += ", ";
}
}
return result;
}
public static String getGroupListInString(List<Group> list)
{
if (list == null)
{
return "";
}
String result = "";
for (int i = 0; i < list.size(); i++)
{
result += list.get(i).getName();
if (i < list.size() - 1)
{
result += ", ";
}
}
return result;
}
public static String join(String[] arr, String separator)
{
if (arr.length == 0)
{
return "";
}
String out = arr[0].toString();
for (int i = 1; i < arr.length; i++)
{
out += separator + arr[i];
}
return out;
}
}
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