/*
* 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.raptor.storage.organization;
import java.util.Objects;
import static com.google.common.base.MoreObjects.toStringHelper;
import static java.util.Objects.requireNonNull;
public class ShardRange
{
private final Tuple minTuple;
private final Tuple maxTuple;
public static ShardRange of(Tuple min, Tuple max)
{
return new ShardRange(min, max);
}
private ShardRange(Tuple minTuple, Tuple maxTuple)
{
this.minTuple = requireNonNull(minTuple, "minTuple is null");
this.maxTuple = requireNonNull(maxTuple, "maxTuple is null");
}
public Tuple getMinTuple()
{
return minTuple;
}
public Tuple getMaxTuple()
{
return maxTuple;
}
public boolean encloses(ShardRange other)
{
return this.getMinTuple().compareTo(other.getMinTuple()) <= 0 &&
this.getMaxTuple().compareTo(other.getMaxTuple()) >= 0;
}
public boolean overlaps(ShardRange other)
{
return this.getMinTuple().compareTo(other.getMaxTuple()) <= 0 &&
other.getMinTuple().compareTo(this.getMaxTuple()) <= 0;
}
public boolean adjacent(ShardRange other)
{
Object o1Min = this.getMinTuple().getValues().get(0);
Object o1Max = this.getMaxTuple().getValues().get(0);
Object o2Min = other.getMinTuple().getValues().get(0);
Object o2Max = other.getMaxTuple().getValues().get(0);
return o1Max.equals(o2Min) || o2Max.equals(o1Min);
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ShardRange that = (ShardRange) o;
return Objects.equals(minTuple, that.minTuple) &&
Objects.equals(maxTuple, that.maxTuple);
}
@Override
public int hashCode()
{
return Objects.hash(minTuple, maxTuple);
}
@Override
public String toString()
{
return toStringHelper(this)
.add("minTuple", minTuple)
.add("maxTuple", maxTuple)
.toString();
}
}