/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate licenses
* this file to you 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.planner.projection;
import io.crate.analyze.symbol.InputColumn;
import io.crate.analyze.symbol.Symbol;
import io.crate.analyze.symbol.Symbols;
import io.crate.collections.Lists2;
import io.crate.metadata.ColumnIdent;
import io.crate.metadata.Reference;
import io.crate.metadata.TableIdent;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.settings.Settings;
import javax.annotation.Nullable;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
public class ColumnIndexWriterProjection extends AbstractIndexWriterProjection {
private List<Symbol> columnSymbols;
private List<Reference> columnReferences;
@Nullable
private Map<Reference, Symbol> onDuplicateKeyAssignments;
/**
* @param tableIdent identifying the table to write to
* @param columns the columnReferences of all the columns to be written in order of appearance
* @param onDuplicateKeyAssignments reference to symbol map used for update on duplicate key
*/
public ColumnIndexWriterProjection(TableIdent tableIdent,
@Nullable String partitionIdent,
List<ColumnIdent> primaryKeys,
List<Reference> columns,
@Nullable
Map<Reference, Symbol> onDuplicateKeyAssignments,
List<Symbol> primaryKeySymbols,
List<ColumnIdent> partitionedByColumns,
List<Symbol> partitionedBySymbols,
@Nullable ColumnIdent clusteredByColumn,
@Nullable Symbol clusteredBySymbol,
Settings settings,
boolean autoCreateIndices) {
super(tableIdent, partitionIdent, primaryKeys, clusteredByColumn, settings, autoCreateIndices);
this.idSymbols = primaryKeySymbols;
this.partitionedBySymbols = partitionedBySymbols;
this.onDuplicateKeyAssignments = onDuplicateKeyAssignments;
this.columnReferences = new ArrayList<>(columns);
this.columnSymbols = new ArrayList<>(columns.size() - partitionedBySymbols.size());
this.clusteredBySymbol = clusteredBySymbol;
for (int i = 0; i < columns.size(); i++) {
Reference ref = columns.get(i);
if (partitionedByColumns.contains(ref.ident().columnIdent())) {
columnReferences.remove(i);
} else {
this.columnSymbols.add(new InputColumn(i, ref.valueType()));
}
}
}
ColumnIndexWriterProjection(StreamInput in) throws IOException {
super(in);
if (in.readBoolean()) {
columnSymbols = Symbols.listFromStream(in);
}
if (in.readBoolean()) {
int length = in.readVInt();
columnReferences = new ArrayList<>(length);
for (int i = 0; i < length; i++) {
columnReferences.add(Reference.fromStream(in));
}
}
if (in.readBoolean()) {
int mapSize = in.readVInt();
onDuplicateKeyAssignments = new HashMap<>(mapSize);
for (int i = 0; i < mapSize; i++) {
onDuplicateKeyAssignments.put(Reference.fromStream(in), Symbols.fromStream(in));
}
}
}
public List<Symbol> columnSymbols() {
return columnSymbols;
}
public List<Reference> columnReferences() {
return columnReferences;
}
public Map<Reference, Symbol> onDuplicateKeyAssignments() {
return onDuplicateKeyAssignments;
}
@Override
public <C, R> R accept(ProjectionVisitor<C, R> visitor, C context) {
return visitor.visitColumnIndexWriterProjection(this, context);
}
@Override
public void replaceSymbols(Function<Symbol, Symbol> replaceFunction) {
Lists2.replaceItems(columnSymbols, replaceFunction);
if (onDuplicateKeyAssignments != null && !onDuplicateKeyAssignments.isEmpty()) {
for (Map.Entry<Reference, Symbol> entry : onDuplicateKeyAssignments.entrySet()) {
entry.setValue(replaceFunction.apply(entry.getValue()));
}
}
}
@Override
public ProjectionType projectionType() {
return ProjectionType.COLUMN_INDEX_WRITER;
}
@SuppressWarnings("SimplifiableIfStatement")
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
if (!super.equals(o)) return false;
ColumnIndexWriterProjection that = (ColumnIndexWriterProjection) o;
if (!columnReferences.equals(that.columnReferences)) return false;
if (!columnSymbols.equals(that.columnSymbols)) return false;
return !(onDuplicateKeyAssignments != null ?
!onDuplicateKeyAssignments.equals(that.onDuplicateKeyAssignments)
: that.onDuplicateKeyAssignments != null);
}
@Override
public int hashCode() {
int result = super.hashCode();
result = 31 * result + columnSymbols.hashCode();
result = 31 * result + columnReferences.hashCode();
result = 31 * result + (onDuplicateKeyAssignments != null ? onDuplicateKeyAssignments.hashCode() : 0);
return result;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (columnSymbols == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
Symbols.toStream(columnSymbols, out);
}
if (columnReferences == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeVInt(columnReferences.size());
for (Reference columnIdent : columnReferences) {
Reference.toStream(columnIdent, out);
}
}
if (onDuplicateKeyAssignments == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeVInt(onDuplicateKeyAssignments.size());
for (Map.Entry<Reference, Symbol> entry : onDuplicateKeyAssignments.entrySet()) {
Reference.toStream(entry.getKey(), out);
Symbols.toStream(entry.getValue(), out);
}
}
}
}