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/*
* Copyright (C) 2022 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.server.telecom.voip;
import android.os.Handler;
import android.os.HandlerThread;
import android.telecom.Log;
import com.android.server.telecom.LoggedHandlerExecutor;
import com.android.server.telecom.TelecomSystem;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Function;
public class VoipCallTransaction {
//TODO: add log events
protected static final long TIMEOUT_LIMIT = 5000L;
protected final AtomicBoolean mCompleted = new AtomicBoolean(false);
protected String mTransactionName = this.getClass().getSimpleName();
private HandlerThread mHandlerThread;
protected Handler mHandler;
protected TransactionManager.TransactionCompleteListener mCompleteListener;
protected List<VoipCallTransaction> mSubTransactions;
protected TelecomSystem.SyncRoot mLock;
public VoipCallTransaction(
List<VoipCallTransaction> subTransactions, TelecomSystem.SyncRoot lock) {
mSubTransactions = subTransactions;
mHandlerThread = new HandlerThread(this.toString());
mHandlerThread.start();
mHandler = new Handler(mHandlerThread.getLooper());
mLock = lock;
}
public VoipCallTransaction(TelecomSystem.SyncRoot lock) {
this(null /** mSubTransactions */, lock);
}
public void start() {
// post timeout work
CompletableFuture<Void> future = new CompletableFuture<>();
mHandler.postDelayed(() -> future.complete(null), TIMEOUT_LIMIT);
future.thenApplyAsync((x) -> {
if (mCompleted.getAndSet(true)) {
return null;
}
if (mCompleteListener != null) {
mCompleteListener.onTransactionTimeout(mTransactionName);
}
finish();
return null;
}, new LoggedHandlerExecutor(mHandler, mTransactionName + "@" + hashCode()
+ ".s", mLock));
scheduleTransaction();
}
protected void scheduleTransaction() {
LoggedHandlerExecutor executor = new LoggedHandlerExecutor(mHandler,
mTransactionName + "@" + hashCode() + ".pT", mLock);
CompletableFuture<Void> future = CompletableFuture.completedFuture(null);
future.thenComposeAsync(this::processTransaction, executor)
.thenApplyAsync((Function<VoipCallTransactionResult, Void>) result -> {
mCompleted.set(true);
if (mCompleteListener != null) {
mCompleteListener.onTransactionCompleted(result, mTransactionName);
}
finish();
return null;
}, executor)
.exceptionallyAsync((throwable -> {
Log.e(this, throwable, "Error while executing transaction.");
return null;
}), executor);
}
public CompletionStage<VoipCallTransactionResult> processTransaction(Void v) {
return CompletableFuture.completedFuture(
new VoipCallTransactionResult(VoipCallTransactionResult.RESULT_SUCCEED, null));
}
public void setCompleteListener(TransactionManager.TransactionCompleteListener listener) {
mCompleteListener = listener;
}
public void finish() {
// finish all sub transactions
if (mSubTransactions != null && mSubTransactions.size() > 0) {
mSubTransactions.forEach(VoipCallTransaction::finish);
}
mHandlerThread.quit();
}
}
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