/*
* Copyright (c) 2008-2013, 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.multimap.operations.client;
import com.hazelcast.config.MultiMapConfig;
import com.hazelcast.multimap.MultiMapPortableHook;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.spi.impl.PortableCollection;
import com.hazelcast.transaction.TransactionContext;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
/**
* @author ali 6/10/13
*/
public class TxnMultiMapGetRequest extends TxnMultiMapRequest {
Data key;
public TxnMultiMapGetRequest() {
}
public TxnMultiMapGetRequest(String name, Data key) {
super(name);
this.key = key;
}
public Object innerCall() throws Exception {
final TransactionContext context = getEndpoint().getTransactionContext(txnId);
final Collection<Object> objects = context.getMultiMap(name).get(key);
Collection<Data> coll = createCollection(objects.size());
for (Object object : objects) {
final Data data = toData(object);
coll.add(data);
}
return new PortableCollection(coll);
}
public int getClassId() {
return MultiMapPortableHook.TXN_MM_GET;
}
private Collection<Data> createCollection(int size) {
final MultiMapConfig config = getClientEngine().getConfig().findMultiMapConfig(name);
if (config.getValueCollectionType().equals(MultiMapConfig.ValueCollectionType.SET)) {
return new HashSet<Data>(size);
} else if (config.getValueCollectionType().equals(MultiMapConfig.ValueCollectionType.LIST)) {
return new ArrayList<Data>(size);
}
return null;
}
public void write(PortableWriter writer) throws IOException {
super.write(writer);
key.writeData(writer.getRawDataOutput());
}
public void read(PortableReader reader) throws IOException {
super.read(reader);
key = new Data();
key.readData(reader.getRawDataInput());
}
}