/*
 * 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.testing;

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 com.google.common.collect.ImmutableList;

import java.util.List;

import static com.facebook.presto.spi.schedule.NodeSelectionStrategy.HARD_AFFINITY;
import static com.facebook.presto.spi.schedule.NodeSelectionStrategy.NO_PREFERENCE;

public class TestingSplit
        implements ConnectorSplit
{
    private static final HostAddress localHost = HostAddress.fromString("127.0.0.1");

    private final NodeSelectionStrategy nodeSelectionStrategy;
    private final List<HostAddress> addresses;

    public static TestingSplit createLocalSplit()
    {
        return new TestingSplit(HARD_AFFINITY, ImmutableList.of(localHost));
    }

    public static TestingSplit createEmptySplit()
    {
        return new TestingSplit(HARD_AFFINITY, ImmutableList.of());
    }

    public static TestingSplit createRemoteSplit()
    {
        return new TestingSplit(NO_PREFERENCE, ImmutableList.of());
    }

    @JsonCreator
    public TestingSplit(@JsonProperty("nodeSelectionStrategy") NodeSelectionStrategy nodeSelectionStrategy, @JsonProperty("addresses") List<HostAddress> addresses)
    {
        this.addresses = addresses;
        this.nodeSelectionStrategy = nodeSelectionStrategy;
    }

    @JsonProperty
    @Override
    public NodeSelectionStrategy getNodeSelectionStrategy()
    {
        return nodeSelectionStrategy;
    }

    @JsonProperty
    public List<HostAddress> getAddresses()
    {
        return addresses;
    }

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

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