| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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. |
| */ |
| |
| package org.apache.cassandra.index; |
| |
| import java.util.*; |
| import java.util.concurrent.Callable; |
| import java.util.function.BiFunction; |
| |
| import org.apache.cassandra.Util; |
| import org.apache.cassandra.config.ColumnDefinition; |
| import org.apache.cassandra.cql3.Operator; |
| import org.apache.cassandra.db.*; |
| import org.apache.cassandra.db.filter.RowFilter; |
| import org.apache.cassandra.db.marshal.AbstractType; |
| import org.apache.cassandra.db.marshal.UTF8Type; |
| import org.apache.cassandra.db.partitions.PartitionIterator; |
| import org.apache.cassandra.db.partitions.PartitionUpdate; |
| import org.apache.cassandra.db.partitions.UnfilteredPartitionIterator; |
| import org.apache.cassandra.db.rows.Row; |
| import org.apache.cassandra.exceptions.InvalidRequestException; |
| import org.apache.cassandra.index.transactions.IndexTransaction; |
| import org.apache.cassandra.schema.IndexMetadata; |
| import org.apache.cassandra.utils.Pair; |
| import org.apache.cassandra.utils.concurrent.OpOrder; |
| |
| /** |
| * Basic custom index implementation for testing. |
| * During indexing by default it just records the updates for later inspection. |
| * At query time, the Searcher implementation simply performs a local scan of the entire target table |
| * with no further filtering applied. |
| */ |
| public class StubIndex implements Index |
| { |
| public volatile int beginCalls; |
| public volatile int finishCalls; |
| public List<DeletionTime> partitionDeletions = new ArrayList<>(); |
| public List<RangeTombstone> rangeTombstones = new ArrayList<>(); |
| public List<Row> rowsInserted = new ArrayList<>(); |
| public List<Row> rowsDeleted = new ArrayList<>(); |
| public List<Pair<Row,Row>> rowsUpdated = new ArrayList<>(); |
| private IndexMetadata indexMetadata; |
| private ColumnFamilyStore baseCfs; |
| |
| public void reset() |
| { |
| rowsInserted.clear(); |
| rowsDeleted.clear(); |
| rowsUpdated.clear(); |
| partitionDeletions.clear(); |
| rangeTombstones.clear(); |
| } |
| |
| public StubIndex(ColumnFamilyStore baseCfs, IndexMetadata metadata) |
| { |
| this.baseCfs = baseCfs; |
| this.indexMetadata = metadata; |
| } |
| |
| public boolean shouldBuildBlocking() |
| { |
| return false; |
| } |
| |
| public boolean dependsOn(ColumnDefinition column) |
| { |
| return false; |
| } |
| |
| public boolean supportsExpression(ColumnDefinition column, Operator operator) |
| { |
| return operator == Operator.EQ; |
| } |
| |
| public AbstractType<?> customExpressionValueType() |
| { |
| return UTF8Type.instance; |
| } |
| |
| public RowFilter getPostIndexQueryFilter(RowFilter filter) |
| { |
| return filter; |
| } |
| |
| public Indexer indexerFor(final DecoratedKey key, |
| PartitionColumns columns, |
| int nowInSec, |
| OpOrder.Group opGroup, |
| IndexTransaction.Type transactionType) |
| { |
| return new Indexer() |
| { |
| public void begin() |
| { |
| beginCalls++; |
| } |
| |
| public void partitionDelete(DeletionTime deletionTime) |
| { |
| partitionDeletions.add(deletionTime); |
| } |
| |
| public void rangeTombstone(RangeTombstone tombstone) |
| { |
| rangeTombstones.add(tombstone); |
| } |
| |
| public void insertRow(Row row) |
| { |
| rowsInserted.add(row); |
| } |
| |
| public void removeRow(Row row) |
| { |
| rowsDeleted.add(row); |
| } |
| |
| public void updateRow(Row oldRowData, Row newRowData) |
| { |
| rowsUpdated.add(Pair.create(oldRowData, newRowData)); |
| } |
| |
| public void finish() |
| { |
| finishCalls++; |
| } |
| }; |
| } |
| |
| public Callable<?> getInitializationTask() |
| { |
| return null; |
| } |
| |
| public IndexMetadata getIndexMetadata() |
| { |
| return indexMetadata; |
| } |
| |
| public void register(IndexRegistry registry){ |
| registry.registerIndex(this); |
| } |
| |
| public Optional<ColumnFamilyStore> getBackingTable() |
| { |
| return Optional.empty(); |
| } |
| |
| public Collection<ColumnDefinition> getIndexedColumns() |
| { |
| return Collections.emptySet(); |
| } |
| |
| public Callable<?> getBlockingFlushTask() |
| { |
| return null; |
| } |
| |
| public Callable<?> getTruncateTask(long truncatedAt) |
| { |
| return null; |
| } |
| |
| public Callable<?> getInvalidateTask() |
| { |
| return null; |
| } |
| |
| public Callable<?> getMetadataReloadTask(IndexMetadata indexMetadata) |
| { |
| return null; |
| } |
| |
| public long getEstimatedResultRows() |
| { |
| return 0; |
| } |
| |
| public void validate(PartitionUpdate update) throws InvalidRequestException |
| { |
| |
| } |
| |
| public Searcher searcherFor(final ReadCommand command) |
| { |
| return (orderGroup) -> Util.executeLocally((PartitionRangeReadCommand)command, baseCfs, orderGroup); |
| } |
| |
| public BiFunction<PartitionIterator, ReadCommand, PartitionIterator> postProcessorFor(ReadCommand readCommand) |
| { |
| return (iter, command) -> iter; |
| } |
| } |