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/*
* 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.proxy;
import com.hazelcast.client.impl.clientside.ClientMessageDecoder;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.codec.ScheduledExecutorGetAllScheduledFuturesCodec;
import com.hazelcast.client.impl.protocol.codec.ScheduledExecutorShutdownCodec;
import com.hazelcast.client.impl.protocol.codec.ScheduledExecutorSubmitToAddressCodec;
import com.hazelcast.client.impl.protocol.codec.ScheduledExecutorSubmitToPartitionCodec;
import com.hazelcast.client.spi.ClientContext;
import com.hazelcast.client.spi.impl.ClientInvocation;
import com.hazelcast.client.spi.impl.ClientInvocationFuture;
import com.hazelcast.client.util.ClientDelegatingFuture;
import com.hazelcast.core.Member;
import com.hazelcast.core.PartitionAware;
import com.hazelcast.logging.ILogger;
import com.hazelcast.logging.Logger;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.quorum.QuorumException;
import com.hazelcast.scheduledexecutor.IScheduledExecutorService;
import com.hazelcast.scheduledexecutor.IScheduledFuture;
import com.hazelcast.scheduledexecutor.NamedTask;
import com.hazelcast.scheduledexecutor.ScheduledTaskHandler;
import com.hazelcast.scheduledexecutor.impl.ScheduledRunnableAdapter;
import com.hazelcast.scheduledexecutor.impl.ScheduledTaskHandlerImpl;
import com.hazelcast.scheduledexecutor.impl.TaskDefinition;
import com.hazelcast.util.FutureUtil;
import com.hazelcast.util.UuidUtil;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import static com.hazelcast.util.ExceptionUtil.rethrow;
import static com.hazelcast.util.ExceptionUtil.sneakyThrow;
import static com.hazelcast.util.FutureUtil.waitWithDeadline;
import static com.hazelcast.util.Preconditions.checkNotNull;
/**
* Client proxy implementation of {@link IScheduledExecutorService}.
*/
@SuppressWarnings({"unchecked", "checkstyle:methodcount"})
public class ClientScheduledExecutorProxy
extends PartitionSpecificClientProxy
implements IScheduledExecutorService {
private static final int SHUTDOWN_TIMEOUT = 10;
private static final ILogger LOGGER = Logger.getLogger(ClientScheduledExecutorProxy.class);
private static final ClientMessageDecoder SUBMIT_DECODER = new ClientMessageDecoder() {
@Override
public Void decodeClientMessage(ClientMessage clientMessage) {
return null;
}
};
private final FutureUtil.ExceptionHandler shutdownExceptionHandler = new FutureUtil.ExceptionHandler() {
@Override
public void handleException(Throwable throwable) {
if (throwable != null) {
if (throwable instanceof QuorumException) {
sneakyThrow(throwable);
}
if (throwable.getCause() instanceof QuorumException) {
sneakyThrow(throwable.getCause());
}
}
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "Exception while ExecutorService shutdown", throwable);
}
}
};
public ClientScheduledExecutorProxy(String serviceName, String objectId, ClientContext context) {
super(serviceName, objectId, context);
}
@Override
public String toString() {
return "ClientScheduledExecutorProxy{" + "name='" + name + '\'' + '}';
}
@Override
public IScheduledFuture schedule(Runnable command, long delay, TimeUnit unit) {
Callable adapter = createScheduledRunnableAdapter(command);
return schedule(adapter, delay, unit);
}
@Override
public IScheduledFuture schedule(Callable command, long delay, TimeUnit unit) {
checkNotNull(command, "Command is null");
checkNotNull(unit, "Unit is null");
String name = extractNameOrGenerateOne(command);
int partitionId = getTaskOrKeyPartitionId(command, name);
TaskDefinition definition = new TaskDefinition(TaskDefinition.Type.SINGLE_RUN, name, command, delay, unit);
return scheduleOnPartition(name, definition, partitionId);
}
@Override
public IScheduledFuture scheduleAtFixedRate(Runnable command, long initialDelay, long period,
TimeUnit unit) {
checkNotNull(command, "Command is null");
checkNotNull(unit, "Unit is null");
String name = extractNameOrGenerateOne(command);
int partitionId = getTaskOrKeyPartitionId(command, name);
Callable adapter = createScheduledRunnableAdapter(command);
TaskDefinition definition = new TaskDefinition(TaskDefinition.Type.AT_FIXED_RATE, name, adapter,
initialDelay, period, unit);
return scheduleOnPartition(name, definition, partitionId);
}
@Override
public IScheduledFuture scheduleOnMember(Runnable command, Member member, long delay, TimeUnit unit) {
checkNotNull(member, "Member is null");
return scheduleOnMembers(command, Collections.singleton(member), delay, unit).get(member);
}
@Override
public IScheduledFuture scheduleOnMember(Callable command, Member member, long delay, TimeUnit unit) {
checkNotNull(member, "Member is null");
return scheduleOnMembers(command, Collections.singleton(member), delay, unit).get(member);
}
@Override
public IScheduledFuture scheduleOnMemberAtFixedRate(Runnable command, Member member, long initialDelay,
long period, TimeUnit unit) {
checkNotNull(member, "Member is null");
return scheduleOnMembersAtFixedRate(command, Collections.singleton(member), initialDelay, period, unit).get(member);
}
@Override
public IScheduledFuture scheduleOnKeyOwner(Runnable command, Object key, long delay, TimeUnit unit) {
Callable adapter = createScheduledRunnableAdapter(command);
return scheduleOnKeyOwner(adapter, key, delay, unit);
}
@Override
public IScheduledFuture scheduleOnKeyOwner(Callable command, Object key, long delay, TimeUnit unit) {
checkNotNull(command, "Command is null");
checkNotNull(key, "Key is null");
checkNotNull(unit, "Unit is null");
String name = extractNameOrGenerateOne(command);
int partitionId = getKeyPartitionId(key);
TaskDefinition definition = new TaskDefinition(TaskDefinition.Type.SINGLE_RUN, name, command,
delay, unit);
return scheduleOnPartition(name, definition, partitionId);
}
@Override
public IScheduledFuture scheduleOnKeyOwnerAtFixedRate(Runnable command, Object key, long initialDelay,
long period, TimeUnit unit) {
checkNotNull(command, "Command is null");
checkNotNull(key, "Key is null");
checkNotNull(unit, "Unit is null");
String name = extractNameOrGenerateOne(command);
int partitionId = getKeyPartitionId(key);
Callable adapter = createScheduledRunnableAdapter(command);
TaskDefinition definition = new TaskDefinition(TaskDefinition.Type.AT_FIXED_RATE, name, adapter,
initialDelay, period, unit);
return scheduleOnPartition(name, definition, partitionId);
}
@Override
public Map> scheduleOnAllMembers(Runnable command, long delay, TimeUnit unit) {
return scheduleOnMembers(command, getContext().getClusterService().getMemberList(), delay, unit);
}
@Override
public Map> scheduleOnAllMembers(Callable command, long delay,
TimeUnit unit) {
return scheduleOnMembers(command, getContext().getClusterService().getMemberList(), delay, unit);
}
@Override
public Map> scheduleOnAllMembersAtFixedRate(Runnable command, long initialDelay,
long period, TimeUnit unit) {
return scheduleOnMembersAtFixedRate(command, getContext().getClusterService().getMemberList(),
initialDelay, period, unit);
}
@Override
public Map> scheduleOnMembers(Runnable command, Collection members, long delay,
TimeUnit unit) {
Callable adapter = createScheduledRunnableAdapter(command);
return scheduleOnMembers(adapter, members, delay, unit);
}
@Override
public Map> scheduleOnMembers(Callable command, Collection members,
long delay, TimeUnit unit) {
checkNotNull(command, "Command is null");
checkNotNull(members, "Members is null");
checkNotNull(unit, "Unit is null");
String name = extractNameOrGenerateOne(command);
Map> futures = new HashMap>();
for (Member member : members) {
TaskDefinition definition = new TaskDefinition(
TaskDefinition.Type.SINGLE_RUN, name, command, delay, unit);
futures.put(member, (IScheduledFuture) scheduleOnMember(name, member, definition));
}
return futures;
}
@Override
public Map> scheduleOnMembersAtFixedRate(Runnable command,
Collection members, long initialDelay,
long period, TimeUnit unit) {
checkNotNull(command, "Command is null");
checkNotNull(members, "Members is null");
checkNotNull(unit, "Unit is null");
String name = extractNameOrGenerateOne(command);
Callable adapter = createScheduledRunnableAdapter(command);
Map> futures = new HashMap>();
for (Member member : members) {
TaskDefinition definition = new TaskDefinition(
TaskDefinition.Type.AT_FIXED_RATE, name, adapter, initialDelay, period, unit);
futures.put(member, scheduleOnMember(name, member, definition));
}
return futures;
}
@Override
public IScheduledFuture getScheduledFuture(ScheduledTaskHandler handler) {
ClientScheduledFutureProxy futureProxy = new ClientScheduledFutureProxy(handler, getContext());
return futureProxy;
}
@Override
public Map>> getAllScheduledFutures() {
ClientMessage request = ScheduledExecutorGetAllScheduledFuturesCodec.encodeRequest(getName());
ClientInvocationFuture future = new ClientInvocation(getClient(), request, getName()).invoke();
ClientMessage response;
try {
response = future.get();
} catch (Exception e) {
throw rethrow(e);
}
Collection>> urnsPerMember =
ScheduledExecutorGetAllScheduledFuturesCodec.decodeResponse(response).handlers;
Map>> tasksMap = new HashMap>>();
for (Map.Entry> entry : urnsPerMember) {
List> memberTasks = new ArrayList>();
for (ScheduledTaskHandler scheduledTaskHandler : entry.getValue()) {
memberTasks.add(new ClientScheduledFutureProxy(scheduledTaskHandler, getContext()));
}
tasksMap.put(entry.getKey(), memberTasks);
}
return tasksMap;
}
@Override
public void shutdown() {
Collection members = getContext().getClusterService().getMemberList();
Collection calls = new LinkedList();
for (Member member : members) {
ClientMessage request = ScheduledExecutorShutdownCodec.encodeRequest(getName(), member.getAddress());
calls.add(doSubmitOnAddress(request, SUBMIT_DECODER, member.getAddress()));
}
waitWithDeadline(calls, SHUTDOWN_TIMEOUT, TimeUnit.SECONDS, shutdownExceptionHandler);
}
private ScheduledRunnableAdapter createScheduledRunnableAdapter(Runnable command) {
checkNotNull(command, "Command can't be null");
return new ScheduledRunnableAdapter(command);
}
private IScheduledFuture createFutureProxy(ScheduledTaskHandler handler) {
return new ClientScheduledFutureProxy(handler, getContext());
}
private IScheduledFuture createFutureProxy(int partitionId, String taskName) {
return createFutureProxy(ScheduledTaskHandlerImpl.of(partitionId, getName(), taskName));
}
private IScheduledFuture createFutureProxy(Address address, String taskName) {
return createFutureProxy(ScheduledTaskHandlerImpl.of(address, getName(), taskName));
}
private int getKeyPartitionId(Object key) {
return getClient().getPartitionService().getPartition(key).getPartitionId();
}
private int getTaskOrKeyPartitionId(Callable task, Object key) {
if (task instanceof PartitionAware) {
Object newKey = ((PartitionAware) task).getPartitionKey();
if (newKey != null) {
key = newKey;
}
}
return getKeyPartitionId(key);
}
private int getTaskOrKeyPartitionId(Runnable task, Object key) {
if (task instanceof PartitionAware) {
Object newKey = ((PartitionAware) task).getPartitionKey();
if (newKey != null) {
key = newKey;
}
}
return getKeyPartitionId(key);
}
private String extractNameOrGenerateOne(Object command) {
String name = null;
if (command instanceof NamedTask) {
name = ((NamedTask) command).getName();
}
return name != null ? name : UuidUtil.newUnsecureUuidString();
}
private IScheduledFuture scheduleOnPartition(String name, TaskDefinition definition, int partitionId) {
TimeUnit unit = definition.getUnit();
Data commandData = getSerializationService().toData(definition.getCommand());
ClientMessage request = ScheduledExecutorSubmitToPartitionCodec.encodeRequest(getName(),
definition.getType().getId(), definition.getName(), commandData,
unit.toMillis(definition.getInitialDelay()),
unit.toMillis(definition.getPeriod()));
try {
new ClientInvocation(getClient(), request, getName(), partitionId).invoke().get();
} catch (Exception e) {
throw rethrow(e);
}
return createFutureProxy(partitionId, name);
}
private IScheduledFuture scheduleOnMember(String name, Member member, TaskDefinition definition) {
TimeUnit unit = definition.getUnit();
Data commandData = getSerializationService().toData(definition.getCommand());
ClientMessage request = ScheduledExecutorSubmitToAddressCodec.encodeRequest(getName(), member.getAddress(),
definition.getType().getId(), definition.getName(), commandData,
unit.toMillis(definition.getInitialDelay()),
unit.toMillis(definition.getPeriod()));
try {
new ClientInvocation(getClient(), request, getName(), member.getAddress()).invoke().get();
} catch (Exception e) {
throw rethrow(e);
}
return createFutureProxy(member.getAddress(), name);
}
private ClientDelegatingFuture doSubmitOnAddress(ClientMessage clientMessage,
ClientMessageDecoder clientMessageDecoder, Address address) {
try {
ClientInvocationFuture future = new ClientInvocation(getClient(), clientMessage, getName(), address).invoke();
return new ClientDelegatingFuture(future, getSerializationService(), clientMessageDecoder);
} catch (Exception e) {
throw rethrow(e);
}
}
}