package com.hazelcast.multimap.operations.client;
import com.hazelcast.config.MultiMapConfig;
import com.hazelcast.core.TransactionalMultiMap;
import com.hazelcast.multimap.MultiMapPortableHook;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.security.permission.ActionConstants;
import com.hazelcast.security.permission.MultiMapPermission;
import com.hazelcast.spi.impl.PortableCollection;
import com.hazelcast.transaction.TransactionContext;
import java.io.IOException;
import java.security.Permission;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
/**
* date: 30/01/14
* author: eminn
*/
public class TxnMultiMapRemoveAllRequest extends TxnMultiMapRequest {
Data key;
public TxnMultiMapRemoveAllRequest() {
}
public TxnMultiMapRemoveAllRequest(String name, Data key) {
super(name);
this.key = key;
}
public Object innerCall() throws Exception {
final TransactionContext context = getEndpoint().getTransactionContext(txnId);
final TransactionalMultiMap<Object,Object> multiMap = context.getMultiMap(name);
final Collection<Object> objects = multiMap.remove(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_REMOVEALL;
}
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);
final ObjectDataOutput out = writer.getRawDataOutput();
key.writeData(out);
}
public void read(PortableReader reader) throws IOException {
super.read(reader);
final ObjectDataInput in = reader.getRawDataInput();
key = new Data();
key.readData(in);
}
public Permission getRequiredPermission() {
return new MultiMapPermission(name, ActionConstants.ACTION_REMOVE);
}
}