| /* |
| * 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.db.guardrails; |
| |
| import java.util.Collections; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.cql3.CQLStatement; |
| import org.apache.cassandra.cql3.QueryOptions; |
| import org.apache.cassandra.cql3.QueryProcessor; |
| import org.apache.cassandra.db.ConsistencyLevel; |
| import org.apache.cassandra.service.ClientState; |
| import org.apache.cassandra.service.QueryState; |
| import org.apache.cassandra.transport.ProtocolVersion; |
| |
| import static java.lang.String.format; |
| |
| /** |
| * Tests the guardrail for the page size, {@link Guardrails#pageSize}. |
| */ |
| public class GuardrailPageSizeTest extends ThresholdTester |
| { |
| private static final int PAGE_SIZE_WARN_THRESHOLD = 5; |
| private static final int PAGE_SIZE_FAIL_THRESHOLD = 10; |
| |
| public GuardrailPageSizeTest() |
| { |
| super(PAGE_SIZE_WARN_THRESHOLD, |
| PAGE_SIZE_FAIL_THRESHOLD, |
| Guardrails.pageSize, |
| Guardrails::setPageSizeThreshold, |
| Guardrails::getPageSizeWarnThreshold, |
| Guardrails::getPageSizeFailThreshold); |
| } |
| |
| @Before |
| public void setupTest() |
| { |
| createTable("CREATE TABLE IF NOT EXISTS %s (k INT, c INT, v TEXT, PRIMARY KEY(k, c))"); |
| } |
| |
| @Test |
| public void testSelectStatementAgainstPageSize() throws Throwable |
| { |
| // regular query |
| String query = "SELECT * FROM %s"; |
| assertPagingValid(query, 3); |
| assertPagingValid(query, PAGE_SIZE_WARN_THRESHOLD); |
| assertPagingWarns(query, 6); |
| assertPagingWarns(query, PAGE_SIZE_FAIL_THRESHOLD); |
| assertPagingFails(query, 11); |
| |
| // aggregation query |
| query = "SELECT COUNT(*) FROM %s WHERE k=0"; |
| assertPagingValid(query, 3); |
| assertPagingValid(query, PAGE_SIZE_WARN_THRESHOLD); |
| assertPagingWarns(query, 6); |
| assertPagingWarns(query, PAGE_SIZE_FAIL_THRESHOLD); |
| assertPagingFails(query, 11); |
| |
| // query with limit over thresholds |
| query = "SELECT * FROM %s LIMIT 100"; |
| assertPagingValid(query, 3); |
| assertPagingValid(query, PAGE_SIZE_WARN_THRESHOLD); |
| assertPagingWarns(query, 6); |
| assertPagingWarns(query, PAGE_SIZE_FAIL_THRESHOLD); |
| assertPagingFails(query, 11); |
| |
| // query with limit under thresholds |
| query = "SELECT * FROM %s LIMIT 1"; |
| assertPagingValid(query, 3); |
| assertPagingValid(query, PAGE_SIZE_WARN_THRESHOLD); |
| assertPagingValid(query, 6); |
| assertPagingValid(query, PAGE_SIZE_FAIL_THRESHOLD); |
| assertPagingValid(query, 11); |
| } |
| |
| @Test |
| public void testExcludedUsers() throws Throwable |
| { |
| assertPagingIgnored("SELECT * FROM %s", PAGE_SIZE_WARN_THRESHOLD + 1); |
| assertPagingIgnored("SELECT * FROM %s", PAGE_SIZE_FAIL_THRESHOLD + 1); |
| } |
| |
| private void assertPagingValid(String query, int pageSize) throws Throwable |
| { |
| assertValid(() -> executeWithPaging(userClientState, query, pageSize)); |
| } |
| |
| private void assertPagingIgnored(String query, int pageSize) throws Throwable |
| { |
| assertValid(() -> executeWithPaging(superClientState, query, pageSize)); |
| assertValid(() -> executeWithPaging(systemClientState, query, pageSize)); |
| } |
| |
| private void assertPagingWarns(String query, int pageSize) throws Throwable |
| { |
| assertWarns(() -> executeWithPaging(userClientState, query, pageSize), |
| format("Query for table %s with page size %s exceeds warning threshold of %s.", |
| currentTable(), pageSize, PAGE_SIZE_WARN_THRESHOLD)); |
| } |
| |
| private void assertPagingFails(String query, int pageSize) throws Throwable |
| { |
| assertFails(() -> executeWithPaging(userClientState, query, pageSize), |
| format("Aborting query for table %s, page size %s exceeds fail threshold of %s.", |
| currentTable(), pageSize, PAGE_SIZE_FAIL_THRESHOLD)); |
| } |
| |
| private void executeWithPaging(ClientState state, String query, int pageSize) |
| { |
| QueryState queryState = new QueryState(state); |
| |
| String formattedQuery = formatQuery(query); |
| CQLStatement statement = QueryProcessor.parseStatement(formattedQuery, queryState.getClientState()); |
| statement.validate(state); |
| |
| QueryOptions options = QueryOptions.create(ConsistencyLevel.ONE, |
| Collections.emptyList(), |
| false, |
| pageSize, |
| null, |
| null, |
| ProtocolVersion.CURRENT, |
| KEYSPACE); |
| |
| statement.executeLocally(queryState, options); |
| } |
| } |