1 files changed, 205 insertions, 0 deletions
diff --git a/app/src/fil/libre/repwifiapp/helpers/Utils.java b/app/src/fil/libre/repwifiapp/helpers/Utils.java
new file mode 100644
index 0000000..2e5fa27
--- /dev/null
+++ b/app/src/fil/libre/repwifiapp/helpers/Utils.java
@@ -0,0 +1,205 @@
+//
+// Copyright 2017 Filippo "Fil" Bergamo <fil.bergamo@riseup.net>
+// 
+// This file is part of RepWifiApp.
+//
+// RepWifiApp is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// RepWifiApp is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with RepWifiApp.  If not, see <http://www.gnu.org/licenses/>.
+// 
+// ********************************************************************
+
+package fil.libre.repwifiapp.helpers;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import android.util.Log;
+
+public class Utils {
+
+	private static final long MILLIS_IN_DAY = 86400000;
+	
+	public static final int logLevel = 1;
+	
+	public static final String APP_NAME = "RepWifi";
+		
+	private static Exception _lastException = null;
+	
+	public static Exception getLastException(){
+		return _lastException;
+	}
+	
+	public static void logError(String msg, Exception e){
+		Log.e(APP_NAME,msg,e);
+	}
+	
+	public static void logError(String msg){
+		Log.e(APP_NAME,msg);
+	}
+	
+	public static void logDebug(String msg){
+		logDebug(msg,0);
+	}
+	
+	public static void logDebug(String msg, int level){
+		
+		if (level < logLevel){
+			return;
+		}
+		
+		Log.d(APP_NAME,msg);
+	}
+	
+	public static boolean writeFile(String filePath, String text, boolean overwrite){
+		
+			
+		FileWriter writer = null;
+		boolean retval = false;
+		try {
+			
+			writer = new FileWriter(filePath, (! overwrite));
+			writer.write(text);
+					
+			retval = true;
+			
+		} catch (Exception e) {
+			_lastException = e;
+			retval = false;
+		}
+		finally{
+			
+			if (writer != null){
+				try {
+					writer.close();
+				} catch (IOException e) {
+					//suppress
+				}
+			}		
+					
+		}
+		
+		return retval;
+		
+	}
+	
+	public static boolean writeFileLines(String filePath, String[] lines, boolean overwrite){
+		
+		if (lines == null){
+			return false;
+		}
+		
+		FileWriter writer = null;
+		boolean retval = false;
+		try {
+			
+			writer = new FileWriter(filePath, (! overwrite));
+			
+			if (lines.length == 0){
+				writer.write("");
+			}
+			
+			for(String l : lines){
+				writer.write(l + "\n");
+			}
+					
+			retval = true;
+			
+		} catch (Exception e) {
+			_lastException = e;
+			retval = false;
+		}
+		finally{
+			
+			if (writer != null){
+				try {
+					writer.close();
+				} catch (IOException e) {
+					//suppress
+				}
+			}		
+					
+		}
+		
+		return retval;
+		
+	}
+
+	public static String[] readFileLines(String filePath){
+		
+		if (filePath == null){
+			return null;
+		}
+		
+		File f = new File(filePath);
+		if (! f.exists()){
+			logError("File doesn't exist: " + filePath);
+			return null;
+		}
+		
+		FileReader fr = null;
+        BufferedReader bufr = null;
+		
+        List<String> lines = new ArrayList<String>();
+        String[] ret = null;
+        
+		try {
+			
+			fr = new FileReader(filePath);
+			bufr = new BufferedReader(fr);
+	        String line ="";
+	        while((line = bufr.readLine()) != null){
+	            lines.add(line);
+	        }
+	        
+	        String[] ar = new String[lines.size()];
+	        ret = lines.toArray(ar);
+	        
+		} catch (Exception e) {
+			logError("Error while reading file " + filePath,e);
+			ret = null;
+		}
+		finally{
+			try {
+				if (bufr != null){
+					bufr.close();
+				}
+			} catch (IOException ex) {
+				//suppress
+			}
+			try {
+				if (fr != null){
+					fr.close();
+				}
+			}catch(IOException exc){
+				//suppress
+			}
+		}
+        
+		return ret;
+		
+	}
+
+	public static long daysToMilliseconds(int days){		
+		return (days * MILLIS_IN_DAY);		
+	}
+	
+	public static long millisecondsToDays(long milliseconds){
+		return (milliseconds / MILLIS_IN_DAY);
+	}
+	
+}