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/*
* 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 org.apg;
import android.content.Intent;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
public class Service extends android.app.Service {
private final IBinder mBinder = new LocalBinder();
public static final String EXTRA_TTL = "ttl";
private int mPassPhraseCacheTtl = 15;
private Handler mCacheHandler = new Handler();
private Runnable mCacheTask = new Runnable() {
public void run() {
// check every ttl/2 seconds, which shouldn't be heavy on the device (even if ttl = 15),
// and makes sure the longest a pass phrase survives in the cache is 1.5 * ttl
int delay = mPassPhraseCacheTtl * 1000 / 2;
// also make sure the delay is not longer than one minute
if (delay > 60000) {
delay = 60000;
}
delay = Apg.cleanUpCache(mPassPhraseCacheTtl, delay);
// don't check too often, even if we were close
if (delay < 5000) {
delay = 5000;
}
mCacheHandler.postDelayed(this, delay);
}
};
static private boolean mIsRunning = false;
@Override
public void onCreate() {
super.onCreate();
mIsRunning = true;
}
@Override
public void onDestroy() {
super.onDestroy();
mIsRunning = false;
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
if (intent != null) {
mPassPhraseCacheTtl = intent.getIntExtra(EXTRA_TTL, 15);
}
if (mPassPhraseCacheTtl < 15) {
mPassPhraseCacheTtl = 15;
}
mCacheHandler.removeCallbacks(mCacheTask);
mCacheHandler.postDelayed(mCacheTask, 1000);
}
static public boolean isRunning() {
return mIsRunning;
}
public class LocalBinder extends Binder {
Service getService() {
return Service.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
}
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