/*
* 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.sql.planner.plan;
import com.facebook.presto.metadata.IndexHandle;
import com.facebook.presto.metadata.TableHandle;
import com.facebook.presto.metadata.TableLayoutHandle;
import com.facebook.presto.spi.ColumnHandle;
import com.facebook.presto.spi.predicate.TupleDomain;
import com.facebook.presto.sql.planner.Symbol;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import static com.google.common.base.Preconditions.checkArgument;
import static java.util.Objects.requireNonNull;
public class IndexSourceNode
extends PlanNode
{
private final IndexHandle indexHandle;
private final TableHandle tableHandle;
private final Optional<TableLayoutHandle> tableLayout; // only necessary for event listeners
private final Set<Symbol> lookupSymbols;
private final List<Symbol> outputSymbols;
private final Map<Symbol, ColumnHandle> assignments; // symbol -> column
private final TupleDomain<ColumnHandle> effectiveTupleDomain; // general summary of how the output columns will be constrained
@JsonCreator
public IndexSourceNode(
@JsonProperty("id") PlanNodeId id,
@JsonProperty("indexHandle") IndexHandle indexHandle,
@JsonProperty("tableHandle") TableHandle tableHandle,
@JsonProperty("tableLayout") Optional<TableLayoutHandle> tableLayout,
@JsonProperty("lookupSymbols") Set<Symbol> lookupSymbols,
@JsonProperty("outputSymbols") List<Symbol> outputSymbols,
@JsonProperty("assignments") Map<Symbol, ColumnHandle> assignments,
@JsonProperty("effectiveTupleDomain") TupleDomain<ColumnHandle> effectiveTupleDomain)
{
super(id);
this.indexHandle = requireNonNull(indexHandle, "indexHandle is null");
this.tableHandle = requireNonNull(tableHandle, "tableHandle is null");
this.tableLayout = requireNonNull(tableLayout, "tableLayout is null");
this.lookupSymbols = ImmutableSet.copyOf(requireNonNull(lookupSymbols, "lookupSymbols is null"));
this.outputSymbols = ImmutableList.copyOf(requireNonNull(outputSymbols, "outputSymbols is null"));
this.assignments = ImmutableMap.copyOf(requireNonNull(assignments, "assignments is null"));
this.effectiveTupleDomain = requireNonNull(effectiveTupleDomain, "effectiveTupleDomain is null");
checkArgument(!lookupSymbols.isEmpty(), "lookupSymbols is empty");
checkArgument(!outputSymbols.isEmpty(), "outputSymbols is empty");
checkArgument(assignments.keySet().containsAll(lookupSymbols), "Assignments do not include all lookup symbols");
checkArgument(outputSymbols.containsAll(lookupSymbols), "Lookup symbols need to be part of the output symbols");
}
@JsonProperty
public IndexHandle getIndexHandle()
{
return indexHandle;
}
@JsonProperty
public TableHandle getTableHandle()
{
return tableHandle;
}
@JsonProperty
public Optional<TableLayoutHandle> getLayout()
{
return tableLayout;
}
@JsonProperty
public Set<Symbol> getLookupSymbols()
{
return lookupSymbols;
}
@Override
@JsonProperty
public List<Symbol> getOutputSymbols()
{
return outputSymbols;
}
@JsonProperty
public Map<Symbol, ColumnHandle> getAssignments()
{
return assignments;
}
@JsonProperty
public TupleDomain<ColumnHandle> getEffectiveTupleDomain()
{
return effectiveTupleDomain;
}
@Override
public List<PlanNode> getSources()
{
return ImmutableList.of();
}
@Override
public <C, R> R accept(PlanVisitor<C, R> visitor, C context)
{
return visitor.visitIndexSource(this, context);
}
@Override
public PlanNode replaceChildren(List<PlanNode> newChildren)
{
checkArgument(newChildren.isEmpty(), "newChildren is not empty");
return this;
}
}