com.hazelcast.client.spi.impl.ClientSmartInvocationServiceImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, 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.LoadBalancer;
import com.hazelcast.client.connection.nio.ClientConnection;
import com.hazelcast.client.impl.ClusterAuthenticator;
import com.hazelcast.client.impl.HazelcastClientInstanceImpl;
import com.hazelcast.client.spi.ClientClusterService;
import com.hazelcast.core.HazelcastException;
import com.hazelcast.core.Member;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.Connection;
import java.io.IOException;
public final class ClientSmartInvocationServiceImpl extends ClientInvocationServiceSupport {
private final LoadBalancer loadBalancer;
private final ClusterAuthenticator authenticator;
public ClientSmartInvocationServiceImpl(HazelcastClientInstanceImpl client, LoadBalancer loadBalancer) {
super(client);
this.loadBalancer = loadBalancer;
authenticator = new ClusterAuthenticator(client, client.getCredentials());
}
public void invokeOnPartitionOwner(ClientInvocation invocation, int partitionId) throws IOException {
final Address owner = partitionService.getPartitionOwner(partitionId);
if (owner == null) {
throw new IOException("Partition does not have owner. partitionId : " + partitionId);
}
Connection connection = getConnection(owner);
send(invocation, (ClientConnection) connection);
}
@Override
public void invokeOnRandomTarget(ClientInvocation invocation) throws IOException {
final Address randomAddress = getRandomAddress();
if (randomAddress == null) {
throw new IOException("Not address found to invoke ");
}
final Connection connection = getConnection(randomAddress);
send(invocation, (ClientConnection) connection);
}
@Override
public void invokeOnTarget(ClientInvocation invocation, Address target)
throws IOException {
if (target == null) {
throw new NullPointerException("Target can not be null");
}
if (!isMember(target)) {
throw new IOException("Target : " + target + " is not member. ");
}
final Connection connection = getConnection(target);
invokeOnConnection(invocation, (ClientConnection) connection);
}
private Connection getConnection(Address target) throws IOException {
ensureOwnerConnectionAvailable();
return connectionManager.getOrTriggerConnect(target, authenticator);
}
private void ensureOwnerConnectionAvailable() throws IOException {
ClientClusterService clientClusterService = client.getClientClusterService();
Address ownerConnectionAddress = clientClusterService.getOwnerConnectionAddress();
boolean isOwnerConnectionAvailable = ownerConnectionAddress != null
&& connectionManager.getConnection(ownerConnectionAddress) != null;
if (!isOwnerConnectionAvailable) {
if (isShutdown()) {
throw new HazelcastException("ConnectionManager is not active!");
}
throw new IOException("Not able to setup owner connection!");
}
}
@Override
public void invokeOnConnection(ClientInvocation invocation, ClientConnection connection) throws IOException {
send(invocation, connection);
}
private Address getRandomAddress() {
Member member = loadBalancer.next();
if (member != null) {
return member.getAddress();
}
return null;
}
private boolean isMember(Address target) {
final Member member = client.getClientClusterService().getMember(target);
return member != null;
}
}