com.hazelcast.client.impl.spi.impl.ClientTransactionManagerServiceImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2020, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.client.impl.spi.impl;
import com.hazelcast.client.HazelcastClientNotActiveException;
import com.hazelcast.client.HazelcastClientOfflineException;
import com.hazelcast.client.config.ClientConfig;
import com.hazelcast.client.config.ClientConnectionStrategyConfig;
import com.hazelcast.client.impl.clientside.HazelcastClientInstanceImpl;
import com.hazelcast.client.impl.connection.nio.ClientConnection;
import com.hazelcast.client.impl.proxy.txn.TransactionContextProxy;
import com.hazelcast.client.impl.proxy.txn.xa.XATransactionContextProxy;
import com.hazelcast.client.impl.spi.ClientTransactionManagerService;
import com.hazelcast.cluster.Member;
import com.hazelcast.core.OperationTimeoutException;
import com.hazelcast.transaction.TransactionContext;
import com.hazelcast.transaction.TransactionException;
import com.hazelcast.transaction.TransactionOptions;
import com.hazelcast.transaction.TransactionalTask;
import javax.annotation.Nonnull;
import javax.transaction.xa.Xid;
import java.util.Set;
import static com.hazelcast.internal.util.Clock.currentTimeMillis;
import static com.hazelcast.internal.util.Preconditions.checkNotNull;
import static com.hazelcast.internal.util.StringUtil.timeToString;
public class ClientTransactionManagerServiceImpl implements ClientTransactionManagerService {
private final HazelcastClientInstanceImpl client;
public ClientTransactionManagerServiceImpl(HazelcastClientInstanceImpl client) {
this.client = client;
}
public HazelcastClientInstanceImpl getClient() {
return client;
}
@Override
public TransactionContext newTransactionContext() {
return newTransactionContext(TransactionOptions.getDefault());
}
@Override
public TransactionContext newTransactionContext(@Nonnull TransactionOptions options) {
return new TransactionContextProxy(this, options);
}
@Override
public T executeTransaction(@Nonnull TransactionalTask task) throws TransactionException {
return executeTransaction(TransactionOptions.getDefault(), task);
}
@Override
public T executeTransaction(@Nonnull TransactionOptions options,
@Nonnull TransactionalTask task) throws TransactionException {
checkNotNull(options, "TransactionOptions must not be null!");
checkNotNull(task, "TransactionalTask is required!");
final TransactionContext context = newTransactionContext(options);
context.beginTransaction();
try {
final T value = task.execute(context);
context.commitTransaction();
return value;
} catch (Throwable e) {
context.rollbackTransaction();
if (e instanceof TransactionException) {
throw (TransactionException) e;
}
if (e.getCause() instanceof TransactionException) {
throw (TransactionException) e.getCause();
}
if (e instanceof RuntimeException) {
throw (RuntimeException) e;
}
throw new TransactionException(e);
}
}
@Override
public TransactionContext newXATransactionContext(Xid xid, int timeoutInSeconds) {
return new XATransactionContextProxy(this, xid, timeoutInSeconds);
}
public void shutdown() {
}
@Override
public String getClusterName() {
return client.getClientConfig().getClusterName();
}
public ClientConnection connect() throws Exception {
ClientInvocationServiceImpl invocationService = (ClientInvocationServiceImpl) client.getInvocationService();
long startTimeMillis = System.currentTimeMillis();
long invocationTimeoutMillis = invocationService.getInvocationTimeoutMillis();
ClientConfig clientConfig = client.getClientConfig();
boolean smartRouting = clientConfig.getNetworkConfig().isSmartRouting();
while (client.getLifecycleService().isRunning()) {
try {
ClientConnection connection = (ClientConnection) client.getConnectionManager().getRandomConnection();
if (connection == null) {
throw throwException(smartRouting);
}
return connection;
} catch (Exception e) {
if (e instanceof HazelcastClientOfflineException) {
throw e;
}
if (System.currentTimeMillis() - startTimeMillis > invocationTimeoutMillis) {
throw newOperationTimeoutException(e, invocationTimeoutMillis, startTimeMillis);
}
}
Thread.sleep(invocationService.getInvocationRetryPauseMillis());
}
throw new HazelcastClientNotActiveException();
}
private Exception newOperationTimeoutException(Throwable e, long invocationTimeoutMillis, long startTimeMillis) {
StringBuilder sb = new StringBuilder();
sb.append("Creating transaction context timed out because exception occurred after client invocation timeout ");
sb.append(invocationTimeoutMillis).append(" ms. ");
sb.append("Current time: ").append(timeToString(currentTimeMillis())).append(". ");
sb.append("Start time: ").append(timeToString(startTimeMillis)).append(". ");
sb.append("Total elapsed time: ").append(currentTimeMillis() - startTimeMillis).append(" ms. ");
String msg = sb.toString();
return new OperationTimeoutException(msg, e);
}
private RuntimeException throwException(boolean smartRouting) {
ClientConfig clientConfig = client.getClientConfig();
ClientConnectionStrategyConfig connectionStrategyConfig = clientConfig.getConnectionStrategyConfig();
ClientConnectionStrategyConfig.ReconnectMode reconnectMode = connectionStrategyConfig.getReconnectMode();
if (reconnectMode.equals(ClientConnectionStrategyConfig.ReconnectMode.ASYNC)) {
throw new HazelcastClientOfflineException();
}
if (smartRouting) {
Set members = client.getCluster().getMembers();
String msg;
if (members.isEmpty()) {
msg = "No address was return by the LoadBalancer since there are no members in the cluster";
} else {
msg = "No address was return by the LoadBalancer. "
+ "But the cluster contains the following members:" + members;
}
throw new IllegalStateException(msg);
}
throw new IllegalStateException("No active connection is found");
}
}