/*
* 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.client;
import com.hazelcast.spi.
Callback;
import com.hazelcast.spi.
InvocationBuilder;
import com.hazelcast.spi.
Operation;
/**
* Base class for partition based client requests.
*/
public abstract class
PartitionClientRequest extends
ClientRequest {
private static final int
TRY_COUNT = 100;
/**
* Called on node side, before starting any operation.
*/
protected void
beforeProcess() {
}
/**
* Called on node side, after process is run and right before sending the response to the client.
*/
protected void
beforeResponse() {
}
/**
* Called on node side, after sending the response to the client.
*/
protected void
afterResponse() {
}
@
Override
final void
process() {
beforeProcess();
ClientEndpoint endpoint =
getEndpoint();
Operation op =
prepareOperation();
op.
setCallerUuid(
endpoint.
getUuid());
InvocationBuilder builder =
clientEngine.
createInvocationBuilder(
getServiceName(),
op,
getPartition())
.
setReplicaIndex(
getReplicaIndex())
.
setTryCount(
TRY_COUNT)
.
setResultDeserialized(false)
.
setCallback(new
CallbackImpl(
endpoint));
builder.
invoke();
}
protected abstract
Operation prepareOperation();
protected abstract int
getPartition();
protected int
getReplicaIndex() {
return 0;
}
protected
Object filter(
Object response) {
return
response;
}
private class
CallbackImpl implements
Callback<
Object> {
private final
ClientEndpoint endpoint;
public
CallbackImpl(
ClientEndpoint endpoint) {
this.
endpoint =
endpoint;
}
@
Override
public void
notify(
Object object) {
beforeResponse();
endpoint.
sendResponse(
filter(
object),
getCallId());
afterResponse();
}
}
}