ArrowSplit.java

/*
 * 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.plugin.arrow;

import com.facebook.presto.spi.ConnectorSplit;
import com.facebook.presto.spi.HostAddress;
import com.facebook.presto.spi.NodeProvider;
import com.facebook.presto.spi.schedule.NodeSelectionStrategy;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import javax.annotation.Nullable;

import java.util.Collections;
import java.util.List;

public class ArrowSplit
        implements ConnectorSplit
{
    private final String schemaName;
    private final String tableName;
    private final byte[] flightEndpointBytes;

    @JsonCreator
    public ArrowSplit(
            @JsonProperty("schemaName") @Nullable String schemaName,
            @JsonProperty("tableName") String tableName,
            @JsonProperty("flightEndpointBytes") byte[] flightEndpointBytes)
    {
        this.schemaName = schemaName;
        this.tableName = tableName;
        this.flightEndpointBytes = flightEndpointBytes;
    }

    @Override
    public NodeSelectionStrategy getNodeSelectionStrategy()
    {
        return NodeSelectionStrategy.NO_PREFERENCE;
    }

    @Override
    public List<HostAddress> getPreferredNodes(NodeProvider nodeProvider)
    {
        return Collections.emptyList();
    }

    @Override
    public Object getInfo()
    {
        return this.getInfoMap();
    }

    @JsonProperty
    public String getSchemaName()
    {
        return schemaName;
    }

    @JsonProperty
    public String getTableName()
    {
        return tableName;
    }

    @JsonProperty
    public byte[] getFlightEndpointBytes()
    {
        return flightEndpointBytes;
    }
}