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/*
* Copyright (C) 2011 The CyanogenMod Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.cyanogenmod.settings.device;
import android.util.Log;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.SyncFailedException;
public class Utils {
private static final String TAG = "CrespoParts_Utils";
private static final String TAG_READ = "CrespoParts_Utils_Read";
private static final String TAG_WRITE = "CrespoParts_Utils_Write";
/**
* Write a string value to the specified file.
*
* @param filename The filename
* @param value The value
*/
public static void writeValue(String filename, String value) {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File(filename), false);
fos.write(value.getBytes());
fos.flush();
// fos.getFD().sync();
} catch (FileNotFoundException ex) {
Log.w(TAG, "file " + filename + " not found: " + ex);
} catch (SyncFailedException ex) {
Log.w(TAG, "file " + filename + " sync failed: " + ex);
} catch (IOException ex) {
Log.w(TAG, "IOException trying to sync " + filename + ": " + ex);
} catch (RuntimeException ex) {
Log.w(TAG, "exception while syncing file: ", ex);
} finally {
if (fos != null) {
try {
Log.w(TAG_WRITE, "file " + filename + ": " + value);
fos.close();
} catch (IOException ex) {
Log.w(TAG, "IOException while closing synced file: ", ex);
} catch (RuntimeException ex) {
Log.w(TAG, "exception while closing file: ", ex);
}
}
}
}
/**
* Write a string value to the specified file.
*
* @param filename The filename
* @param value The value
*/
public static void writeValue(String filename, Boolean value) {
FileOutputStream fos = null;
String sEnvia;
try {
fos = new FileOutputStream(new File(filename), false);
if (value)
sEnvia = "1";
else
sEnvia = "0";
fos.write(sEnvia.getBytes());
fos.flush();
// fos.getFD().sync();
} catch (FileNotFoundException ex) {
Log.w(TAG, "file " + filename + " not found: " + ex);
} catch (SyncFailedException ex) {
Log.w(TAG, "file " + filename + " sync failed: " + ex);
} catch (IOException ex) {
Log.w(TAG, "IOException trying to sync " + filename + ": " + ex);
} catch (RuntimeException ex) {
Log.w(TAG, "exception while syncing file: ", ex);
} finally {
if (fos != null) {
try {
Log.w(TAG_WRITE, "file " + filename + ": " + value);
fos.close();
} catch (IOException ex) {
Log.w(TAG, "IOException while closing synced file: ", ex);
} catch (RuntimeException ex) {
Log.w(TAG, "exception while closing file: ", ex);
}
}
}
}
/**
* Write the "color value" to the specified file. The value is scaled from
* an integer to an unsigned integer by multiplying by 2.
*
* @param filename The filename
* @param value The value of max value Integer.MAX
*/
public static void writeColor(String filename, int value) {
writeValue(filename, String.valueOf((long) value * 2));
}
/**
* Write the "color value" to the specified file. The value is scaled from
* seconds to miliseconds multiplying by 1000.
*
* @param filename The filename
* @param value The value of time
*/
public static void writebld(String filename, int value) {
writeValue(filename, String.valueOf(value * 1000));
if(value > 0)
writeValue("/sys/class/misc/backlightdimmer/enabled", "1");
else
writeValue("/sys/class/misc/backlightdimmer/enabled", "0");
}
/**
* Check if the specified file exists.
*
* @param filename The filename
* @return Whether the file exists or not
*/
public static boolean fileExists(String filename) {
return new File(filename).exists();
}
// Read value from sysfs interface
public static String readOneLine(String sFile) {
BufferedReader brBuffer;
String sLine = null;
try {
brBuffer = new BufferedReader(new FileReader(sFile), 512);
try {
sLine = brBuffer.readLine();
} finally {
Log.w(TAG_READ, "file " + sFile + ": " + sLine);
brBuffer.close();
}
} catch (Exception e) {
Log.e(TAG_READ, "IO Exception when reading /sys/ file", e);
}
return sLine;
}
}
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