| /** |
| * 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.hadoop.hdfs; |
| |
| import static org.junit.Assert.fail; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.nio.channels.ClosedChannelException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.Test; |
| |
| public class TestClose { |
| |
| @Test |
| public void testWriteAfterClose() throws IOException { |
| Configuration conf = new Configuration(); |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf) |
| .build(); |
| |
| try { |
| final byte[] data = "foo".getBytes(); |
| |
| FileSystem fs = FileSystem.get(conf); |
| OutputStream out = fs.create(new Path("/test")); |
| |
| out.write(data); |
| out.close(); |
| try { |
| // Should fail. |
| out.write(data); |
| fail("Should not have been able to write more data after file is closed."); |
| } catch (ClosedChannelException cce) { |
| // We got the correct exception. Ignoring. |
| } |
| // Should succeed. Double closes are OK. |
| out.close(); |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| |
| } |