
com.netease.arctic.spark.util.SortOrderToSpark Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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* http://www.apache.org/licenses/LICENSE-2.0
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package com.netease.arctic.spark.util;
import com.netease.arctic.shade.org.apache.iceberg.NullOrder;
import com.netease.arctic.shade.org.apache.iceberg.SortDirection;
import com.netease.arctic.shade.org.apache.iceberg.transforms.SortOrderVisitor;
import org.apache.spark.sql.connector.expressions.Expression;
import org.apache.spark.sql.connector.expressions.Expressions;
public class SortOrderToSpark implements SortOrderVisitor {
final ExpressionHelper expressionHelper;
public SortOrderToSpark(ExpressionHelper expressionHelper) {
this.expressionHelper = expressionHelper;
}
@Override
public Expression field(String sourceName, int sourceId, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(Expressions.column(sourceName), ascending(direction));
}
@Override
public Expression bucket(String sourceName, int sourceId, int width, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(Expressions.bucket(width, sourceName), ascending(direction));
}
@Override
public Expression truncate(String sourceName, int sourceId, int width, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(expressionHelper.truncate(sourceName, width), ascending(direction));
}
@Override
public Expression year(String sourceName, int sourceId, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(Expressions.years(sourceName), ascending(direction));
}
@Override
public Expression month(String sourceName, int sourceId, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(Expressions.months(sourceName), ascending(direction));
}
@Override
public Expression day(String sourceName, int sourceId, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(Expressions.days(sourceName), ascending(direction));
}
@Override
public Expression hour(String sourceName, int sourceId, SortDirection direction, NullOrder nullOrder) {
return expressionHelper.sort(Expressions.hours(sourceName), ascending(direction));
}
private boolean ascending(SortDirection direction) {
return direction == SortDirection.ASC;
}
}
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