Package com.facebook.presto.operator

Source Code of com.facebook.presto.operator.RecordSinkManager

/*
* 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.facebook.presto.operator;

import com.facebook.presto.metadata.InsertTableHandle;
import com.facebook.presto.metadata.OutputTableHandle;
import com.facebook.presto.spi.ConnectorRecordSinkProvider;
import com.facebook.presto.spi.RecordSink;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

import static com.google.common.base.Preconditions.checkArgument;

public class RecordSinkManager
        implements RecordSinkProvider
{
    private final ConcurrentMap<String, ConnectorRecordSinkProvider> recordSinkProviders = new ConcurrentHashMap<>();

    public void addConnectorRecordSinkProvider(String connectorId, ConnectorRecordSinkProvider recordSinkProvider)
    {
        ConnectorRecordSinkProvider previous = recordSinkProviders.putIfAbsent(connectorId, recordSinkProvider);
        checkArgument(previous == null, "Record sink provider already registered for connector '%s'", connectorId);
    }

    @Override
    public RecordSink getRecordSink(OutputTableHandle tableHandle)
    {
        return providerFor(tableHandle.getConnectorId()).getRecordSink(tableHandle.getConnectorHandle());
    }

    @Override
    public RecordSink getRecordSink(InsertTableHandle tableHandle)
    {
        return providerFor(tableHandle.getConnectorId()).getRecordSink(tableHandle.getConnectorHandle());
    }

    private ConnectorRecordSinkProvider providerFor(String connectorId)
    {
        ConnectorRecordSinkProvider provider = recordSinkProviders.get(connectorId);
        checkArgument(provider != null, "No record sink provider for connector '%s'", connectorId);
        return provider;
    }
}
TOP

Related Classes of com.facebook.presto.operator.RecordSinkManager

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.