| /* |
| * 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.flink.streaming.tests.verify; |
| |
| import org.apache.flink.api.common.state.State; |
| import org.apache.flink.api.common.state.ValueState; |
| import org.apache.flink.api.common.state.ValueStateDescriptor; |
| import org.apache.flink.api.common.typeutils.base.StringSerializer; |
| import org.apache.flink.runtime.state.FunctionInitializationContext; |
| |
| import javax.annotation.Nonnull; |
| |
| import java.util.List; |
| |
| class TtlValueStateVerifier |
| extends AbstractTtlStateVerifier<ValueStateDescriptor<String>, ValueState<String>, String, String, String> { |
| TtlValueStateVerifier() { |
| super(new ValueStateDescriptor<>("TtlValueStateVerifier", StringSerializer.INSTANCE)); |
| } |
| |
| @Override |
| @Nonnull |
| State createState(FunctionInitializationContext context) { |
| return context.getKeyedStateStore().getState(stateDesc); |
| } |
| |
| @Nonnull |
| public String generateRandomUpdate() { |
| return randomString(); |
| } |
| |
| @Override |
| String getInternal(@Nonnull ValueState<String> state) throws Exception { |
| return state.value(); |
| } |
| |
| @Override |
| void updateInternal(@Nonnull ValueState<String> state, String update) throws Exception { |
| state.update(update); |
| } |
| |
| @Override |
| String expected(@Nonnull List<ValueWithTs<String>> updates, long currentTimestamp) { |
| if (updates.isEmpty()) { |
| return null; |
| } |
| ValueWithTs<String> lastUpdate = updates.get(updates.size() - 1); |
| return expired(lastUpdate.getTimestamp(), currentTimestamp) ? null : lastUpdate.getValue(); |
| } |
| } |