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com.hazelcast.client.spi.impl.ClientInvocation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, 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.spi.impl;
import com.hazelcast.client.HazelcastClientNotActiveException;
import com.hazelcast.client.connection.nio.ClientConnection;
import com.hazelcast.client.impl.HazelcastClientInstanceImpl;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.spi.ClientExecutionService;
import com.hazelcast.client.spi.EventHandler;
import com.hazelcast.core.HazelcastInstanceNotActiveException;
import com.hazelcast.core.HazelcastOverloadException;
import com.hazelcast.core.LifecycleService;
import com.hazelcast.logging.ILogger;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.Connection;
import com.hazelcast.spi.exception.RetryableHazelcastException;
import java.io.IOException;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.TimeUnit;
/**
* Handles the routing of a request from a Hazelcast client.
*
* 1) Where should request be send?
* 2) Should it be retried?
* 3) How many times it is retried?
*/
public class ClientInvocation implements Runnable {
public static final long RETRY_WAIT_TIME_IN_SECONDS = 1;
private static final int UNASSIGNED_PARTITION = -1;
private final ClientInvocationFuture clientInvocationFuture;
private final ILogger logger;
private final LifecycleService lifecycleService;
private final ClientInvocationServiceSupport invocationService;
private final ClientExecutionService executionService;
private final ClientMessage clientMessage;
private final Address address;
private final int partitionId;
private final Connection connection;
private volatile ClientConnection sendConnection;
private boolean bypassHeartbeatCheck;
private boolean urgent;
private long retryTimeoutPointInMillis;
private EventHandler handler;
protected ClientInvocation(HazelcastClientInstanceImpl client,
ClientMessage clientMessage,
int partitionId,
Address address,
Connection connection) {
this.lifecycleService = client.getLifecycleService();
this.invocationService = (ClientInvocationServiceSupport) client.getInvocationService();
this.executionService = client.getClientExecutionService();
this.clientMessage = clientMessage;
this.partitionId = partitionId;
this.address = address;
this.connection = connection;
this.retryTimeoutPointInMillis = System.currentTimeMillis() + invocationService.getInvocationTimeoutMillis();
this.logger = invocationService.invocationLogger;
this.clientInvocationFuture = new ClientInvocationFuture(this, client, clientMessage, logger);
}
public ClientInvocation(HazelcastClientInstanceImpl client, ClientMessage clientMessage) {
this(client, clientMessage, UNASSIGNED_PARTITION, null, null);
}
public ClientInvocation(HazelcastClientInstanceImpl client, ClientMessage clientMessage,
int partitionId) {
this(client, clientMessage, partitionId, null, null);
}
public ClientInvocation(HazelcastClientInstanceImpl client, ClientMessage clientMessage,
Address address) {
this(client, clientMessage, UNASSIGNED_PARTITION, address, null);
}
public ClientInvocation(HazelcastClientInstanceImpl client, ClientMessage clientMessage,
Connection connection) {
this(client, clientMessage, UNASSIGNED_PARTITION, null, connection);
}
public int getPartitionId() {
return partitionId;
}
public ClientMessage getClientMessage() {
return clientMessage;
}
public ClientInvocationFuture invoke() {
assert (clientMessage != null);
try {
invokeOnSelection();
} catch (Exception e) {
if (e instanceof HazelcastOverloadException) {
throw (HazelcastOverloadException) e;
}
notifyException(e);
}
return clientInvocationFuture;
}
public ClientInvocationFuture invokeUrgent() {
urgent = true;
return invoke();
}
private void invokeOnSelection() throws IOException {
if (isBindToSingleConnection()) {
invocationService.invokeOnConnection(this, (ClientConnection) connection);
} else if (partitionId != -1) {
invocationService.invokeOnPartitionOwner(this, partitionId);
} else if (address != null) {
invocationService.invokeOnTarget(this, address);
} else {
invocationService.invokeOnRandomTarget(this);
}
}
@Override
public void run() {
try {
invoke();
} catch (Throwable e) {
clientInvocationFuture.complete(e);
}
}
public void notify(ClientMessage clientMessage) {
if (clientMessage == null) {
throw new IllegalArgumentException("response can't be null");
}
clientInvocationFuture.complete(clientMessage);
}
public void notifyException(Throwable exception) {
if (!lifecycleService.isRunning()) {
clientInvocationFuture.complete(new HazelcastClientNotActiveException(exception.getMessage(), exception));
return;
}
if (isRetryable(exception)) {
if (handleRetry()) {
return;
}
}
if (exception instanceof RetryableHazelcastException) {
if (clientMessage.isRetryable() || invocationService.isRedoOperation()) {
if (handleRetry()) {
return;
}
}
}
clientInvocationFuture.complete(exception);
}
private boolean handleRetry() {
if (isBindToSingleConnection()) {
return false;
}
if (!shouldRetry()) {
return false;
}
try {
rescheduleInvocation();
} catch (RejectedExecutionException e) {
if (logger.isFinestEnabled()) {
logger.finest("Retry could not be scheduled ", e);
}
notifyException(e);
}
return true;
}
private void rescheduleInvocation() {
ClientExecutionServiceImpl executionServiceImpl = (ClientExecutionServiceImpl) this.executionService;
executionServiceImpl.schedule(this, RETRY_WAIT_TIME_IN_SECONDS, TimeUnit.SECONDS);
}
private boolean shouldRetry() {
return System.currentTimeMillis() < retryTimeoutPointInMillis;
}
private boolean isBindToSingleConnection() {
return connection != null;
}
public EventHandler getEventHandler() {
return handler;
}
public void setEventHandler(EventHandler handler) {
this.handler = handler;
}
public boolean shouldBypassHeartbeatCheck() {
return bypassHeartbeatCheck;
}
public boolean isUrgent() {
return urgent;
}
public void setBypassHeartbeatCheck(boolean bypassHeartbeatCheck) {
this.bypassHeartbeatCheck = bypassHeartbeatCheck;
}
public void setSendConnection(ClientConnection connection) {
this.sendConnection = connection;
}
public ClientConnection getSendConnectionOrWait() throws InterruptedException {
while (sendConnection == null && !clientInvocationFuture.isDone()) {
Thread.sleep(TimeUnit.SECONDS.toMillis(RETRY_WAIT_TIME_IN_SECONDS));
}
return sendConnection;
}
public ClientConnection getSendConnection() {
return sendConnection;
}
public static boolean isRetryable(Throwable t) {
return t instanceof IOException || t instanceof HazelcastInstanceNotActiveException;
}
}
