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/*
* Copyright (C) 2013 The Android Open Source 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.android.exchange.service;
import android.content.Context;
import android.os.AsyncTask;
import com.android.emailcommon.provider.Account;
import com.android.exchange.Eas;
import com.android.exchange.adapter.PingParser;
import com.android.exchange.eas.EasOperation;
import com.android.exchange.eas.EasPing;
import com.android.mail.utils.LogUtils;
/**
* Thread management class for Ping operations.
*/
public class PingTask extends AsyncTask<Void, Void, Void> {
private final EasPing mOperation;
// TODO: Transition away from mSyncHandlerMap -> mPingSyncSynchronizer.
private final EmailSyncAdapterService.SyncHandlerSynchronizer mSyncHandlerMap;
private final PingSyncSynchronizer mPingSyncSynchronizer;
private static final String TAG = Eas.LOG_TAG;
public PingTask(final Context context, final Account account,
final android.accounts.Account amAccount,
final EmailSyncAdapterService.SyncHandlerSynchronizer syncHandlerMap) {
assert syncHandlerMap != null;
mOperation = new EasPing(context, account, amAccount);
mSyncHandlerMap = syncHandlerMap;
mPingSyncSynchronizer = null;
}
public PingTask(final Context context, final Account account,
final android.accounts.Account amAccount,
final PingSyncSynchronizer pingSyncSynchronizer) {
assert pingSyncSynchronizer != null;
mOperation = new EasPing(context, account, amAccount);
mSyncHandlerMap = null;
mPingSyncSynchronizer = pingSyncSynchronizer;
}
/** Start the ping loop. */
public void start() {
executeOnExecutor(THREAD_POOL_EXECUTOR);
}
/** Abort the ping loop (used when another operation interrupts the ping). */
public void stop() {
mOperation.abort();
}
/** Restart the ping loop (used when a ping request happens during a ping). */
public void restart() {
mOperation.restart();
}
@Override
protected Void doInBackground(Void... params) {
LogUtils.i(TAG, "Ping task starting for %d", mOperation.getAccountId());
int pingStatus;
try {
do {
pingStatus = mOperation.doPing();
} while (PingParser.shouldPingAgain(pingStatus));
} catch (final Exception e) {
// TODO: This is hacky, try to be cleaner.
// If we get any sort of exception here, treat it like the ping returned a connection
// failure.
LogUtils.e(TAG, e, "Ping exception for account %d", mOperation.getAccountId());
pingStatus = EasOperation.RESULT_REQUEST_FAILURE;
}
LogUtils.i(TAG, "Ping task ending with status: %d", pingStatus);
if (mSyncHandlerMap != null) {
mSyncHandlerMap.pingComplete(mOperation.getAmAccount(), mOperation.getAccountId(),
pingStatus);
} else {
// TODO: Fix the pushEnabled param.
mPingSyncSynchronizer.pingEnd(mOperation.getAccountId(), false);
}
return null;
}
@Override
protected void onCancelled (Void result) {
// TODO: This is also hacky, should have a separate result code at minimum.
// If the ping is cancelled, make sure it reports something to the sync adapter.
LogUtils.w(TAG, "Ping cancelled for %d", mOperation.getAccountId());
if (mSyncHandlerMap != null) {
mSyncHandlerMap.pingComplete(mOperation.getAmAccount(), mOperation.getAccountId(),
EasOperation.RESULT_REQUEST_FAILURE);
} else {
// TODO: Fix the pushEnabled param.
mPingSyncSynchronizer.pingEnd(mOperation.getAccountId(), false);
}
}
}
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