ifesdjeen commented on code in PR #3689: URL: https://github.com/apache/cassandra/pull/3689#discussion_r1850371642
########## test/harry/main/org/apache/cassandra/harry/execution/InJvmDTestVisitExecutor.java: ########## @@ -0,0 +1,353 @@ +/* + * 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.harry.execution; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import accord.utils.Invariants; +import org.apache.cassandra.distributed.api.ConsistencyLevel; +import org.apache.cassandra.distributed.api.ICluster; +import org.apache.cassandra.harry.ColumnSpec; +import org.apache.cassandra.harry.SchemaSpec; +import org.apache.cassandra.harry.model.Model; +import org.apache.cassandra.harry.model.QuiescentChecker; +import org.apache.cassandra.harry.op.Operations; +import org.apache.cassandra.harry.op.Visit; + +import static org.apache.cassandra.harry.MagicConstants.LTS_UNKNOWN; +import static org.apache.cassandra.harry.MagicConstants.NIL_DESCR; +import static org.apache.cassandra.harry.MagicConstants.NIL_KEY; +import static org.apache.cassandra.harry.MagicConstants.UNKNOWN_DESCR; +import static org.apache.cassandra.harry.MagicConstants.UNSET_DESCR; +import static org.apache.cassandra.harry.execution.QueryBuildingVisitExecutor.*; + +public class InJvmDTestVisitExecutor extends CQLVisitExecutor +{ + private static final Logger logger = LoggerFactory.getLogger(InJvmDTestVisitExecutor.class); + + protected final ICluster<?> cluster; + protected final ConsistencyLevelSelector consistencyLevel; + + protected final NodeSelector nodeSelector; + protected final PageSizeSelector pageSizeSelector; + protected final RetryPolicy retryPolicy; + + protected InJvmDTestVisitExecutor(SchemaSpec schema, + DataTracker dataTracker, + Model model, + ICluster<?> cluster, + + NodeSelector nodeSelector, + PageSizeSelector pageSizeSelector, + RetryPolicy retryPolicy, + ConsistencyLevelSelector consistencyLevel, + WrapQueries wrapQueries) + { + super(schema, dataTracker, model, new QueryBuildingVisitExecutor(schema, wrapQueries)); + this.cluster = cluster; + this.consistencyLevel = consistencyLevel; + + this.nodeSelector = nodeSelector; + this.pageSizeSelector = pageSizeSelector; + this.retryPolicy = retryPolicy; + } + + @Override + protected List<ResultSetRow> executeWithResult(Visit visit, CompiledStatement statement) + { + while (true) + { + try + { + return executeWithResult(visit, nodeSelector.select(visit.lts), statement); + } + catch (Throwable t) + { + if (retryPolicy.retry(t)) + continue; + throw t; + } + } + } + + protected List<ResultSetRow> executeWithResult(Visit visit, int node, CompiledStatement statement) + { + Invariants.checkState(visit.operations.length == 1); + Object[][] rows; + ConsistencyLevel consistencyLevel = this.consistencyLevel.consistencyLevel(visit); + if (consistencyLevel == ConsistencyLevel.NODE_LOCAL) + rows = cluster.get(node).executeInternal(statement.cql(), statement.bindings()); + else + { + int pages = pageSizeSelector.pages(visit); + if (pages == PageSizeSelector.NO_PAGING) + rows = cluster.coordinator(node).execute(statement.cql(), consistencyLevel, statement.bindings()); + else + rows = iterToArr(cluster.coordinator(node) + .executeWithPaging(statement.cql(), consistencyLevel, pages, statement.bindings())); + } + + if (logger.isTraceEnabled()) + logger.trace("{} returned {} results", statement, rows.length); + + return rowsToResultSet(schema, (Operations.SelectStatement) visit.operations[0], rows); + } + + protected static Object[][] iterToArr(Iterator<Object[]> iter) + { + List<Object[]> tmp = new ArrayList<>(); + while (iter.hasNext()) + tmp.add(iter.next()); + return tmp.toArray(new Object[tmp.size()][]); + } + + @Override + protected void executeWithoutResult(Visit visit, CompiledStatement statement) + { + while (true) + { + try + { + executeWithoutResult(visit, nodeSelector.select(visit.lts), statement); + return; + } + catch (Throwable t) + { + if (retryPolicy.retry(t)) + continue; + throw t; + } + } + + } + + protected void executeWithoutResult(Visit visit, int node, CompiledStatement statement) + { + ConsistencyLevel consistencyLevel = this.consistencyLevel.consistencyLevel(visit); + if (consistencyLevel == ConsistencyLevel.NODE_LOCAL) + cluster.get(node).executeInternal(statement.cql(), statement.bindings()); + else + cluster.coordinator(node).execute(statement.cql(), consistencyLevel, statement.bindings()); + } + + public static List<ResultSetRow> rowsToResultSet(SchemaSpec schema, Operations.SelectStatement select, Object[][] result) + { + List<ResultSetRow> rs = new ArrayList<>(); + for (Object[] res : result) + rs.add(rowToResultSet(schema, select, res)); + return rs; + } + + public static ResultSetRow rowToResultSet(SchemaSpec schema, Operations.SelectStatement select, Object[] result) + { + long[] staticColumns = new long[schema.staticColumns.size()]; + long[] regularColumns = new long[schema.regularColumns.size()]; + Arrays.fill(staticColumns, UNKNOWN_DESCR); + Arrays.fill(regularColumns, UNKNOWN_DESCR); + // TODO: with timestamps + long[] staticLts = LTS_UNKNOWN; + long[] regularLts = LTS_UNKNOWN; + + long pd = UNKNOWN_DESCR; + Operations.Selection selection = Operations.Selection.fromBitSet(select.selection(), schema); + if (selection.selectsAllOf(schema.partitionKeys)) + { + Object[] partitionKey = new Object[schema.partitionKeys.size()]; + for (int i = 0; i < schema.partitionKeys.size(); i++) + partitionKey[i] = result[selection.indexOf(schema.partitionKeys.get(i))]; + + pd = schema.valueGenerators.pkGen.deflate(partitionKey); + } + + // Deflate logic for clustering key is a bit more involved, since CK can be nil in case of a single static row. + long cd = UNKNOWN_DESCR; + if (selection.selectsAllOf(schema.clusteringKeys)) + { + Object[] clusteringKey = new Object[schema.clusteringKeys.size()]; + for (int i = 0; i < schema.clusteringKeys.size(); i++) + { + Object v = result[selection.indexOf(schema.clusteringKeys.get(i))]; + if (v == null) + { + for (int j = 0; j < schema.clusteringKeys.size(); j++) + { + Invariants.checkState(result[selection.indexOf(schema.clusteringKeys.get(j))] == null, + "All elements of clustering key should have been null"); + } + clusteringKey = NIL_KEY; + break; + } + clusteringKey[i] = v; + } + + // Clusterings can not be set to nil, so if we do not see, we assume it is unset + if (clusteringKey == NIL_KEY) + cd = UNSET_DESCR; + else + cd = schema.valueGenerators.ckGen.deflate(clusteringKey); + } + + for (int i = 0; i < schema.regularColumns.size(); i++) + { + ColumnSpec<?> column = schema.regularColumns.get(i); + if (selection.selects(column)) + { + Object v = result[selection.indexOf(schema.regularColumns.get(i))]; + if (v == null) + regularColumns[i] = NIL_DESCR; + else + regularColumns[i] = schema.valueGenerators.regularColumnGens.get(i).deflate(v); + } + else + { + regularLts[i] = UNKNOWN_DESCR; + } + } + + for (int i = 0; i < schema.staticColumns.size(); i++) + { + ColumnSpec<?> column = schema.staticColumns.get(i); + if (selection.selects(column)) + { + Object v = result[selection.indexOf(schema.staticColumns.get(i))]; + if (v == null) + staticColumns[i] = NIL_DESCR; + else + staticColumns[i] = schema.valueGenerators.staticColumnGens.get(i).deflate(v); + } + else + { + staticColumns[i] = UNKNOWN_DESCR; + } + } + + if (selection.includeTimestamp()) + throw new IllegalStateException("not implemented for CQL Tester"); + if (selection.includeTimestamp()) + throw new IllegalStateException("not implemented for CQL Tester"); Review Comment: Brought this back, but I am afraid I do not have time to test this. 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