com.amazonaws.athena.connectors.jdbc.splits.SplitInfo Maven / Gradle / Ivy
/*-
* #%L
* athena-jdbc
* %%
* Copyright (C) 2019 Amazon Web Services
* %%
* 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.
* #L%
*/
package com.amazonaws.athena.connectors.jdbc.splits;
import org.apache.commons.lang3.Validate;
import java.util.Objects;
/**
* Split information. Example: split range, column name, type and expected splits.
*
* @param type of the split. E.g. Integer.
*/
public class SplitInfo
{
private final SplitRange splitRange;
private final String columnName;
private final int columnType;
private final int numSplits;
/**
* @param splitRange split range of type T.
* @param columnName database column name.
* @param columnType database column type.
* @param numSplits expected number of splits.
*/
public SplitInfo(final SplitRange splitRange, final String columnName, final int columnType, final int numSplits)
{
this.splitRange = Validate.notNull(splitRange, "splitRange must not be null");
this.columnName = Validate.notBlank(columnName, "columnName must not be blank");
this.columnType = columnType;
this.numSplits = numSplits < 1 ? 1 : numSplits;
}
public SplitRange getSplitRange()
{
return splitRange;
}
public String getColumnName()
{
return columnName;
}
public int getColumnType()
{
return columnType;
}
public int getNumSplits()
{
return numSplits;
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
SplitInfo> splitInfo = (SplitInfo>) o;
return getColumnType() == splitInfo.getColumnType() &&
getNumSplits() == splitInfo.getNumSplits() &&
Objects.equals(getSplitRange(), splitInfo.getSplitRange()) &&
Objects.equals(getColumnName(), splitInfo.getColumnName());
}
@Override
public int hashCode()
{
return Objects.hash(getSplitRange(), getColumnName(), getColumnType(), getNumSplits());
}
@Override
public String toString()
{
return "SplitInfo{" +
"splitRange=" + splitRange +
", columnName='" + columnName + '\'' +
", columnType=" + columnType +
", numSplits=" + numSplits +
'}';
}
}