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/*
* 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.cache.impl;
import com.hazelcast.cache.impl.CacheProxyUtil;
import com.hazelcast.client.connection.nio.ClientConnection;
import com.hazelcast.client.impl.HazelcastClientInstanceImpl;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.codec.CacheCreateConfigCodec;
import com.hazelcast.client.impl.protocol.codec.CacheGetConfigCodec;
import com.hazelcast.client.impl.protocol.codec.CacheManagementConfigCodec;
import com.hazelcast.client.spi.impl.ClientInvocation;
import com.hazelcast.client.spi.properties.ClientProperty;
import com.hazelcast.config.CacheConfig;
import com.hazelcast.config.LegacyCacheConfig;
import com.hazelcast.core.Member;
import com.hazelcast.instance.BuildInfo;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.serialization.SerializationService;
import com.hazelcast.util.FutureUtil;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import static com.hazelcast.util.ExceptionUtil.rethrow;
import static com.hazelcast.util.ExceptionUtil.sneakyThrow;
/**
* Helper class for some client cache related stuff.
*/
final class ClientCacheHelper {
private ClientCacheHelper() {
}
/**
* Gets the cache configuration from the server.
*
* @param client the client instance which will send the operation to server
* @param cacheName full cache name with prefixes
* @param simpleCacheName pure cache name without any prefix
* @param type of the key of the cache
* @param type of the value of the cache
* @return the cache configuration if it can be found
*/
static CacheConfig getCacheConfig(HazelcastClientInstanceImpl client,
String cacheName, String simpleCacheName) {
ClientMessage request = CacheGetConfigCodec.encodeRequest(cacheName, simpleCacheName);
try {
int partitionId = client.getClientPartitionService().getPartitionId(cacheName);
ClientInvocation clientInvocation = new ClientInvocation(client, request, partitionId);
Future future = clientInvocation.invoke();
ClientMessage responseMessage = future.get();
SerializationService serializationService = client.getSerializationService();
return deserializeCacheConfig(client, responseMessage, serializationService, clientInvocation);
} catch (Exception e) {
throw rethrow(e);
}
}
private static CacheConfig deserializeCacheConfig(HazelcastClientInstanceImpl client,
ClientMessage responseMessage,
SerializationService serializationService,
ClientInvocation clientInvocation) {
Data responseData = CacheGetConfigCodec.decodeResponse(responseMessage).response;
ClientConnection sendConnection = clientInvocation.getSendConnection();
if (null != sendConnection && BuildInfo.UNKNOWN_HAZELCAST_VERSION == sendConnection.getConnectedServerVersion()) {
boolean compatibilityEnabled = client.getProperties().getBoolean(ClientProperty.COMPATIBILITY_3_6_SERVER_ENABLED);
if (compatibilityEnabled) {
LegacyCacheConfig legacyConfig = serializationService.toObject(responseData, LegacyCacheConfig.class);
if (null == legacyConfig) {
return null;
}
return legacyConfig.getConfigAndReset();
}
}
return serializationService.toObject(responseData);
}
/**
* Sends the cache configuration to server.
*
* @param client the client instance which will send the operation to server
* @param configs {@link ConcurrentMap} based store that holds cache configurations
* @param cacheName full cache name with prefixes
* @param newCacheConfig the cache configuration to be sent to server
* @param createAlsoOnOthers flag which represents whether cache config
* will be sent to other nodes by the target node
* @param syncCreate flag which represents response will be waited from the server
* @param type of the key of the cache
* @param type of the value of the cache
* @return the created cache configuration
*/
static CacheConfig createCacheConfig(HazelcastClientInstanceImpl client,
ConcurrentMap configs,
String cacheName,
CacheConfig newCacheConfig,
boolean createAlsoOnOthers,
boolean syncCreate) {
try {
CacheConfig currentCacheConfig = configs.get(cacheName);
int partitionId = client.getClientPartitionService().getPartitionId(newCacheConfig.getNameWithPrefix());
Object resolvedConfig = resolveCacheConfig(client, newCacheConfig, partitionId);
Data configData = client.getSerializationService().toData(resolvedConfig);
ClientMessage request = CacheCreateConfigCodec.encodeRequest(configData, createAlsoOnOthers);
ClientInvocation clientInvocation = new ClientInvocation(client, request, partitionId);
Future future = clientInvocation.invoke();
if (syncCreate) {
final ClientMessage response = future.get();
final Data data = CacheCreateConfigCodec.decodeResponse(response).response;
return resolveCacheConfig(client, clientInvocation, data);
} else {
return currentCacheConfig;
}
} catch (Exception e) {
throw rethrow(e);
}
}
private static CacheConfig resolveCacheConfig(HazelcastClientInstanceImpl client,
ClientInvocation clientInvocation, Data configData) {
ClientConnection sendConnection = clientInvocation.getSendConnection();
if (null != sendConnection && BuildInfo.UNKNOWN_HAZELCAST_VERSION == sendConnection.getConnectedServerVersion()) {
boolean compatibilityEnabled = client.getProperties().getBoolean(ClientProperty.COMPATIBILITY_3_6_SERVER_ENABLED);
if (compatibilityEnabled) {
LegacyCacheConfig legacyConfig = client.getSerializationService().toObject(configData, LegacyCacheConfig.class);
if (null == legacyConfig) {
return null;
}
return legacyConfig.getConfigAndReset();
}
}
return client.getSerializationService().toObject(configData);
}
private static Object resolveCacheConfig(HazelcastClientInstanceImpl client, CacheConfig newCacheConfig,
int partitionId)
throws IOException {
ClientConnection sendConnection = client.getInvocationService().getConnection(partitionId);
if (null != sendConnection && BuildInfo.UNKNOWN_HAZELCAST_VERSION == sendConnection.getConnectedServerVersion()) {
boolean compatibilityEnabled = client.getProperties().getBoolean(ClientProperty.COMPATIBILITY_3_6_SERVER_ENABLED);
if (compatibilityEnabled) {
return new LegacyCacheConfig(newCacheConfig);
}
}
return newCacheConfig;
}
/**
* Enables/disables statistics or management support of cache on the all servers in the cluster.
*
* @param client the client instance which will send the operation to server
* @param cacheName full cache name with prefixes
* @param statOrMan flag that represents which one of the statistics or management will be enabled
* @param enabled flag which represents whether it is enable or disable
*/
static void enableStatisticManagementOnNodes(HazelcastClientInstanceImpl client,
String cacheName,
boolean statOrMan, boolean enabled) {
Collection members = client.getClientClusterService().getMemberList();
Collection futures = new ArrayList();
for (Member member : members) {
try {
Address address = member.getAddress();
ClientMessage request = CacheManagementConfigCodec.encodeRequest(cacheName, statOrMan, enabled, address);
ClientInvocation clientInvocation = new ClientInvocation(client, request, address);
Future future = clientInvocation.invoke();
futures.add(future);
} catch (Exception e) {
sneakyThrow(e);
}
}
// make sure all configs are created
FutureUtil.waitWithDeadline(futures, CacheProxyUtil.AWAIT_COMPLETION_TIMEOUT_SECONDS, TimeUnit.SECONDS);
}
}
