/*
* Copyright 2013 Basho Technologies Inc
*
* 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.basho.riak.client.api.commands;
import com.basho.riak.client.core.RiakCluster;
import com.basho.riak.client.core.RiakFuture;
import com.basho.riak.client.core.operations.DtUpdateOperation;
import com.basho.riak.client.api.commands.datatypes.Context;
import com.basho.riak.client.api.commands.datatypes.CounterUpdate;
import com.basho.riak.client.core.query.Location;
import com.basho.riak.client.core.query.Namespace;
import com.basho.riak.client.core.query.crdt.types.RiakCounter;
import com.basho.riak.client.core.query.crdt.types.RiakDatatype;
import com.basho.riak.client.core.util.BinaryValue;
/**
*
* @author Brian Roach <roach at basho dot com>
* @since 2.0
*/
public class UpdateCounter extends UpdateDatatype<RiakCounter, UpdateCounter.Response, Location>
{
private final CounterUpdate update;
private UpdateCounter(Builder builder)
{
super(builder);
this.update = builder.update;
}
@Override
protected RiakFuture<Response, Location> executeAsync(RiakCluster cluster)
{
RiakFuture<DtUpdateOperation.Response, Location> coreFuture =
cluster.execute(buildCoreOperation(update));
CoreFutureAdapter<Response, Location, DtUpdateOperation.Response, Location> future =
new CoreFutureAdapter<Response, Location, DtUpdateOperation.Response, Location>(coreFuture)
{
@Override
protected Response convertResponse(DtUpdateOperation.Response coreResponse)
{
RiakCounter counter = null;
if (coreResponse.hasCrdtElement())
{
RiakDatatype element = coreResponse.getCrdtElement();
counter = element.getAsCounter();
}
BinaryValue returnedKey = coreResponse.hasGeneratedKey()
? coreResponse.getGeneratedKey()
: null;
Context returnedCtx = null;
if (coreResponse.hasContext())
{
returnedCtx = new Context(coreResponse.getContext());
}
return new Response(returnedCtx, counter, returnedKey);
}
@Override
protected Location convertQueryInfo(Location coreQueryInfo)
{
return coreQueryInfo;
}
};
coreFuture.addListener(future);
return future;
}
public static final class Response extends UpdateDatatype.Response<RiakCounter>
{
private Response(Context context, RiakCounter datatype, BinaryValue generatedKey)
{
super(context, datatype, generatedKey);
}
}
public static final class Builder extends UpdateDatatype.Builder<Builder>
{
private final CounterUpdate update;
public Builder(Location location, CounterUpdate update)
{
super(location);
if (update == null)
{
throw new IllegalArgumentException("Update cannot be null");
}
this.update = update;
}
public Builder(Namespace namespace, CounterUpdate update)
{
super(namespace);
if (update == null)
{
throw new IllegalArgumentException("Update cannot be null");
}
this.update = update;
}
@Override
public UpdateCounter build()
{
return new UpdateCounter(this);
}
@Override
protected Builder self()
{
return this;
}
}
}