/*
* 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.raw.pbc;
import com.basho.riak.client.query.RiakStreamingRuntimeException;
import com.basho.riak.client.query.StreamingOperation;
import com.basho.riak.pbc.RiakStreamClient;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
*
* @author Brian Roach <roach at basho dot com>
*/
public abstract class PBStreamingOperation<S,T> implements StreamingOperation<T>
{
final protected RiakStreamClient<S> client;
public PBStreamingOperation(RiakStreamClient<S> client)
{
this.client = client;
}
public List<T> getAll()
{
List<T> list = new ArrayList<T>();
while (hasNext())
{
list.add(next());
}
return list;
}
public void cancel()
{
client.cancel();
}
public Iterator<T> iterator()
{
return this;
}
public abstract T next();
public boolean hasNext()
{
boolean hasNext = false;
try
{
hasNext = client.hasNext();
}
catch (IOException ex)
{
throw new RiakStreamingRuntimeException(ex);
}
return hasNext;
}
public void remove()
{
throw new UnsupportedOperationException("Not supported");
}
public boolean hasContinuation()
{
return client.hasContinuation();
}
public String getContinuation()
{
return client.getContinuation() == null ? null : client.getContinuation().toStringUtf8();
}
}