/*
* 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.collection;
import com.hazelcast.collection.list.ListContainer;
import com.hazelcast.collection.list.ListService;
import com.hazelcast.core.ItemEventType;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;
import com.hazelcast.spi.BackupOperation;
import com.hazelcast.spi.EventRegistration;
import com.hazelcast.spi.EventService;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.PartitionAwareOperation;
import com.hazelcast.spi.exception.RetryableHazelcastException;
import java.io.IOException;
import java.util.Collection;
public abstract class CollectionOperation extends Operation
implements PartitionAwareOperation, IdentifiedDataSerializable {
protected String name;
protected transient Object response;
private transient CollectionContainer container;
protected CollectionOperation() {
}
protected CollectionOperation(String name) {
this.name = name;
}
protected final ListContainer getOrCreateListContainer() {
if (container == null) {
ListService service = getService();
try {
container = service.getOrCreateContainer(name, this instanceof BackupOperation);
} catch (Exception e) {
throw new RetryableHazelcastException(e);
}
}
return (ListContainer) container;
}
protected final CollectionContainer getOrCreateContainer() {
if (container == null) {
CollectionService service = getService();
try {
container = service.getOrCreateContainer(name, this instanceof BackupOperation);
} catch (Exception e) {
throw new RetryableHazelcastException(e);
}
}
return container;
}
protected void publishEvent(ItemEventType eventType, Data data) {
EventService eventService = getNodeEngine().getEventService();
Collection<EventRegistration> registrations = eventService.getRegistrations(getServiceName(), name);
for (EventRegistration registration : registrations) {
CollectionEventFilter filter = (CollectionEventFilter) registration.getFilter();
final Address address = getNodeEngine().getThisAddress();
final boolean includeValue = filter.isIncludeValue();
CollectionEvent event = new CollectionEvent(name, includeValue ? data : null, eventType, address);
eventService.publishEvent(getServiceName(), registration, event, name.hashCode());
}
}
public boolean hasEnoughCapacity(int delta) {
return getOrCreateContainer().hasEnoughCapacity(delta);
}
@Override
public int getFactoryId() {
return CollectionDataSerializerHook.F_ID;
}
@Override
public boolean returnsResponse() {
return true;
}
@Override
public Object getResponse() {
return response;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
out.writeUTF(name);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
name = in.readUTF();
}
}