| /* |
| * 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.cql3; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Map; |
| |
| import org.apache.cassandra.cql3.statements.BatchStatement; |
| import org.apache.cassandra.cql3.statements.ParsedStatement; |
| import org.apache.cassandra.service.QueryState; |
| import org.apache.cassandra.transport.messages.ResultMessage; |
| import org.apache.cassandra.utils.MD5Digest; |
| |
| /** |
| * Custom QueryHandler that sends custom request payloads back with the result. |
| * Used to facilitate testing. |
| * Enabled with system property cassandra.custom_query_handler_class. |
| */ |
| public class CustomPayloadMirroringQueryHandler implements QueryHandler |
| { |
| static QueryProcessor queryProcessor = QueryProcessor.instance; |
| |
| public ResultMessage process(String query, |
| QueryState state, |
| QueryOptions options, |
| Map<String, ByteBuffer> customPayload, |
| long queryStartNanoTime) |
| { |
| ResultMessage result = queryProcessor.process(query, state, options, customPayload, queryStartNanoTime); |
| result.setCustomPayload(customPayload); |
| return result; |
| } |
| |
| public ResultMessage.Prepared prepare(String query, QueryState state, Map<String, ByteBuffer> customPayload) |
| { |
| ResultMessage.Prepared prepared = queryProcessor.prepare(query, state, customPayload); |
| prepared.setCustomPayload(customPayload); |
| return prepared; |
| } |
| |
| public ParsedStatement.Prepared getPrepared(MD5Digest id) |
| { |
| return queryProcessor.getPrepared(id); |
| } |
| |
| public ParsedStatement.Prepared getPreparedForThrift(Integer id) |
| { |
| return queryProcessor.getPreparedForThrift(id); |
| } |
| |
| public ResultMessage processPrepared(CQLStatement statement, |
| QueryState state, |
| QueryOptions options, |
| Map<String, ByteBuffer> customPayload, |
| long queryStartNanoTime) |
| { |
| ResultMessage result = queryProcessor.processPrepared(statement, state, options, customPayload, queryStartNanoTime); |
| result.setCustomPayload(customPayload); |
| return result; |
| } |
| |
| public ResultMessage processBatch(BatchStatement statement, |
| QueryState state, |
| BatchQueryOptions options, |
| Map<String, ByteBuffer> customPayload, |
| long queryStartNanoTime) |
| { |
| ResultMessage result = queryProcessor.processBatch(statement, state, options, customPayload, queryStartNanoTime); |
| result.setCustomPayload(customPayload); |
| return result; |
| } |
| } |