com.hazelcast.client.cache.impl.ClientClusterWideIterator 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.cache.impl;
import com.hazelcast.cache.impl.AbstractClusterWideIterator;
import com.hazelcast.cache.impl.CacheKeyIteratorResult;
import com.hazelcast.cache.impl.client.CacheIterateRequest;
import com.hazelcast.client.impl.HazelcastClientInstanceImpl;
import com.hazelcast.client.spi.ClientContext;
import com.hazelcast.client.spi.impl.ClientInvocation;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.impl.SerializableList;
import com.hazelcast.util.ExceptionUtil;
import javax.cache.Cache;
import java.util.Iterator;
import java.util.concurrent.Future;
/**
* Client side cluster-wide iterator for {@link com.hazelcast.cache.ICache}.
*
* This implementation is used by client implementation of jcache.
*
* Note: For more information on the iterator details, see {@link AbstractClusterWideIterator}.
*
* @param the type of key.
* @param the type of value.
*/
public class ClientClusterWideIterator
extends AbstractClusterWideIterator
implements Iterator> {
private ClientCacheProxy cacheProxy;
private ClientContext context;
public ClientClusterWideIterator(ClientCacheProxy cacheProxy, ClientContext context) {
super(cacheProxy, context.getPartitionService().getPartitionCount());
this.cacheProxy = cacheProxy;
this.context = context;
advance();
}
protected CacheKeyIteratorResult fetch() {
CacheIterateRequest request = new CacheIterateRequest(cacheProxy.getNameWithPrefix(), partitionIndex, lastTableIndex,
fetchSize, cacheProxy.cacheConfig.getInMemoryFormat());
final HazelcastClientInstanceImpl client = (HazelcastClientInstanceImpl) context.getHazelcastInstance();
try {
final ClientInvocation clientInvocation = new ClientInvocation(client, request);
final Future f = clientInvocation.invoke();
return toObject(f.get());
} catch (Exception e) {
throw ExceptionUtil.rethrow(e);
}
}
@Override
protected Data toData(Object obj) {
return context.getSerializationService().toData(obj);
}
@Override
protected T toObject(Object data) {
return context.getSerializationService().toObject(data);
}
}