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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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.metis.ccnx.service;
import android.app.Notification;
import android.app.Service;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.os.IBinder;
import android.util.Log;
import com.metis.ccnx.supportlibrary.MetisForwarder;
import com.metis.ccnx.utility.Constants;
import com.metis.ccnx.utility.ResourcesEnumerator;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
public class MetisForwarderService extends Service {
private final static String TAG = "MetisForwarderService";
private static Thread sForwarderThread = null;
public MetisForwarderService() {
}
private String path;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
MetisForwarder metisForwarder = MetisForwarder.getInstance();
if (!metisForwarder.isRunning()) {
Log.d(TAG, "Starting Metis Forwarder");
SharedPreferences sharedPreferences = getSharedPreferences(Constants.METIS_FORWARDER_PREFERENCES, MODE_PRIVATE);
String configuration = sharedPreferences.getString(ResourcesEnumerator.CONFIGURATION.key(), Constants.DEFAULT_CONFIGURATION);
String sourceIp = sharedPreferences.getString(ResourcesEnumerator.SOURCE_IP.key(), null);
String sourcePort = sharedPreferences.getString(ResourcesEnumerator.SOURCE_PORT.key(), null);
String nextHopIp = sharedPreferences.getString(ResourcesEnumerator.NEXT_HOP_IP.key(), null);
String nextHopPort = sharedPreferences.getString(ResourcesEnumerator.NEXT_HOP_PORT.key(), null);
String prefix = sharedPreferences.getString(ResourcesEnumerator.PREFIX.key(), null);
configuration = configuration.replace(Constants.SOURCE_IP, sourceIp);
configuration = configuration.replace(Constants.SOURCE_PORT, sourcePort);
configuration = configuration.replace(Constants.NEXT_HOP_IP, nextHopIp);
configuration = configuration.replace(Constants.NEXT_HOP_PORT, nextHopPort);
configuration = configuration.replace(Constants.PREFIX, prefix);
try {
String configurationDir = getPackageManager().getPackageInfo(getPackageName(), 0).applicationInfo.dataDir +
File.separator + Constants.CONFIGURATION_PATH;
File folder = new File(configurationDir);
if (!folder.exists()) {
folder.mkdirs();
}
writeToFile(configuration, configurationDir + File.separator + Constants.CONFIGURATION_FILE_NAME);
startForwarder(intent, configurationDir + File.separator + Constants.CONFIGURATION_FILE_NAME);
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "Error Package name not found ", e);
}
} else {
Log.d(TAG, "Metis Forwarder already running.");
}
return Service.START_STICKY;
}
@Override
public void onDestroy() {
MetisForwarder metisForwarder = MetisForwarder.getInstance();
Log.d(TAG, "Destroying Metis Forwarder");
if (metisForwarder.isRunning()) {
metisForwarder.stop();
stopForeground(true);
}
super.onDestroy();
}
protected Runnable mForwarderRunner = new Runnable() {
//private String path;
@Override
public void run() {
MetisForwarder metisForwarder = MetisForwarder.getInstance();
metisForwarder.start(path);
}
};
private boolean writeToFile(String data, String path) {
Log.v(TAG, path + " " + data);
try (Writer writer = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(path), "utf-8"))) {
writer.write(data);
return true;
} catch (IOException e) {
Log.e(TAG, "File write failed: " + e.toString());
return false;
}
}
private void startForwarder(Intent intent, String path) {
int NOTIFICATION_ID = 12345;
startForeground(Constants.FOREGROUND_SERVICE, new Notification.Builder(this).build());
MetisForwarder metisForwarder = MetisForwarder.getInstance();
if (!metisForwarder.isRunning()) {
this.path = path;
sForwarderThread = new Thread(mForwarderRunner, "MetisForwarderRunner");
sForwarderThread.start();
}
}
}
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