IndexSourceMatcher.java
/*
* 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.assertions;
import com.facebook.presto.Session;
import com.facebook.presto.common.predicate.Domain;
import com.facebook.presto.cost.StatsProvider;
import com.facebook.presto.metadata.Metadata;
import com.facebook.presto.spi.TableMetadata;
import com.facebook.presto.spi.plan.IndexSourceNode;
import com.facebook.presto.spi.plan.PlanNode;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
import java.util.Optional;
import static com.facebook.presto.sql.planner.assertions.MatchResult.NO_MATCH;
import static com.facebook.presto.sql.planner.assertions.MatchResult.match;
import static com.facebook.presto.sql.planner.assertions.Util.domainsMatch;
import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.base.Preconditions.checkState;
import static java.util.Objects.requireNonNull;
final class IndexSourceMatcher
implements Matcher
{
private final String expectedTableName;
private final Optional<Map<String, Domain>> expectedConstraint;
public IndexSourceMatcher(String expectedTableName)
{
this.expectedTableName = requireNonNull(expectedTableName, "expectedTableName is null");
expectedConstraint = Optional.empty();
}
public IndexSourceMatcher(String expectedTableName, Map<String, Domain> expectedConstraint)
{
this.expectedTableName = requireNonNull(expectedTableName, "expectedTableName is null");
this.expectedConstraint = Optional.of(ImmutableMap.copyOf(expectedConstraint));
}
@Override
public boolean shapeMatches(PlanNode node)
{
return node instanceof IndexSourceNode;
}
@Override
public MatchResult detailMatches(PlanNode node, StatsProvider stats, Session session, Metadata metadata, SymbolAliases symbolAliases)
{
checkState(shapeMatches(node), "Plan testing framework error: shapeMatches returned false in detailMatches in %s", this.getClass().getName());
IndexSourceNode indexSourceNode = (IndexSourceNode) node;
TableMetadata tableMetadata = metadata.getTableMetadata(session, indexSourceNode.getTableHandle());
String actualTableName = tableMetadata.getTable().getTableName();
if (!expectedTableName.equalsIgnoreCase(actualTableName)) {
return NO_MATCH;
}
if (expectedConstraint.isPresent() &&
!domainsMatch(
expectedConstraint,
indexSourceNode.getCurrentConstraint(),
indexSourceNode.getTableHandle(),
session,
metadata)) {
return NO_MATCH;
}
return match();
}
@Override
public String toString()
{
return toStringHelper(this)
.omitNullValues()
.add("expectedTableName", expectedTableName)
.add("expectedConstraint", expectedConstraint.orElse(null))
.toString();
}
}