| /* |
| * 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.connectors.cassandra; |
| |
| import com.datastax.driver.core.ResultSet; |
| import com.datastax.driver.core.ResultSetFuture; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import static org.apache.flink.util.Preconditions.checkNotNull; |
| |
| /** |
| * Utility class to create {@link com.datastax.driver.core.ResultSetFuture}s. |
| */ |
| class ResultSetFutures { |
| |
| private ResultSetFutures() { |
| } |
| |
| static ResultSetFuture fromCompletableFuture(CompletableFuture<ResultSet> future) { |
| checkNotNull(future); |
| return new CompletableResultSetFuture(future); |
| } |
| |
| private static class CompletableResultSetFuture implements ResultSetFuture { |
| |
| private final CompletableFuture<ResultSet> completableFuture; |
| |
| CompletableResultSetFuture(CompletableFuture<ResultSet> future) { |
| this.completableFuture = future; |
| } |
| |
| @Override |
| public ResultSet getUninterruptibly() { |
| try { |
| return completableFuture.get(); |
| } catch (InterruptedException e) { |
| return getUninterruptibly(); |
| } catch (ExecutionException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public ResultSet getUninterruptibly(long l, TimeUnit timeUnit) throws TimeoutException { |
| try { |
| return completableFuture.get(l, timeUnit); |
| } catch (InterruptedException e) { |
| return getUninterruptibly(); |
| } catch (ExecutionException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public boolean cancel(boolean b) { |
| return completableFuture.cancel(b); |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return completableFuture.isCancelled(); |
| } |
| |
| @Override |
| public boolean isDone() { |
| return completableFuture.isDone(); |
| } |
| |
| @Override |
| public ResultSet get() throws InterruptedException, ExecutionException { |
| return completableFuture.get(); |
| } |
| |
| @Override |
| public ResultSet get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { |
| return completableFuture.get(timeout, unit); |
| } |
| |
| @Override |
| public void addListener(Runnable listener, Executor executor) { |
| completableFuture.whenComplete((result, error) -> listener.run()); |
| } |
| } |
| } |