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Presto - Local File Connector
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/*
 * 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.localfile;

import com.facebook.presto.spi.ConnectorTableHandle;
import com.facebook.presto.spi.SchemaTableName;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import java.util.Objects;
import java.util.OptionalInt;

import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;

public class LocalFileTableHandle
        implements ConnectorTableHandle
{
    private final SchemaTableName schemaTableName;
    private final OptionalInt timestampColumn;
    private final OptionalInt serverAddressColumn;

    @JsonCreator
    public LocalFileTableHandle(
            @JsonProperty("schemaTableName") SchemaTableName schemaTableName,
            @JsonProperty("timestampColumn") OptionalInt timestampColumn,
            @JsonProperty("serverAddressColumn") OptionalInt serverAddressColumn)
    {
        this.schemaTableName = requireNonNull(schemaTableName, "schemaTableName is null");
        this.timestampColumn = requireNonNull(timestampColumn, "timestampColumn is null");
        this.serverAddressColumn = requireNonNull(serverAddressColumn, "serverAddressColumn is null");
    }

    @JsonProperty
    public SchemaTableName getSchemaTableName()
    {
        return schemaTableName;
    }

    @JsonProperty
    public OptionalInt getTimestampColumn()
    {
        return timestampColumn;
    }

    @JsonProperty
    public OptionalInt getServerAddressColumn()
    {
        return serverAddressColumn;
    }

    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        LocalFileTableHandle that = (LocalFileTableHandle) o;
        return Objects.equals(schemaTableName, that.schemaTableName) &&
                Objects.equals(timestampColumn, that.timestampColumn) &&
                Objects.equals(serverAddressColumn, that.serverAddressColumn);
    }

    @Override
    public int hashCode()
    {
        return Objects.hash(schemaTableName, timestampColumn, serverAddressColumn);
    }

    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("schemaTableName", schemaTableName)
                .toString();
    }
}