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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/05/16 22:20:12 UTC

[jira] [Commented] (FLINK-3782) ByteArrayOutputStream and ObjectOutputStream should close

    [ https://issues.apache.org/jira/browse/FLINK-3782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285538#comment-15285538 ] 

ASF GitHub Bot commented on FLINK-3782:
---------------------------------------

GitHub user rekhajoshm opened a pull request:

    https://github.com/apache/flink/pull/1995

    [FLINK-3782] ByteArrayOutputStream and ObjectOutputStream should close

    [FLINK-3782] ByteArrayOutputStream and ObjectOutputStream should close
    
    The ByteArrayOutputStream close method is useless and has no impact, so is usually never called.However I am using try with resources for both to take care of closing closeable resources automatically.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/rekhajoshm/flink FLINK-3782

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/1995.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1995
    
----
commit 2fec41be0f1ef8f1b9f707d0085d6f9fca8101bb
Author: Joshi <re...@gmail.com>
Date:   2016-05-16T22:18:42Z

    [FLINK-3782] ByteArrayOutputStream and ObjectOutputStream should close

----


> ByteArrayOutputStream and ObjectOutputStream should close
> ---------------------------------------------------------
>
>                 Key: FLINK-3782
>                 URL: https://issues.apache.org/jira/browse/FLINK-3782
>             Project: Flink
>          Issue Type: Test
>          Components: Java API
>    Affects Versions: 1.0.1
>            Reporter: Chenguang He
>            Priority: Minor
>              Labels: test
>
> ByteArrayOutputStream and ObjectOutputStream should close
> @Test
> 	public void testSerializability() {
> 		try {
> 			Collection<ElementType> inputCollection = new ArrayList<ElementType>();
> 			ElementType element1 = new ElementType(1);
> 			ElementType element2 = new ElementType(2);
> 			ElementType element3 = new ElementType(3);
> 			inputCollection.add(element1);
> 			inputCollection.add(element2);
> 			inputCollection.add(element3);
> 	
> 			@SuppressWarnings("unchecked")
> 			TypeInformation<ElementType> info = (TypeInformation<ElementType>) TypeExtractor.createTypeInfo(ElementType.class);
> 	
> 			CollectionInputFormat<ElementType> inputFormat = new CollectionInputFormat<ElementType>(inputCollection,
> 					info.createSerializer(new ExecutionConfig()));
> 			ByteArrayOutputStream buffer = new ByteArrayOutputStream();// <----open in here
> 			ObjectOutputStream out = new ObjectOutputStream(buffer);// <----open in here
> 			out.writeObject(inputFormat);
> 			ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));  // <----open in here
> 			Object serializationResult = in.readObject();
> 			assertNotNull(serializationResult);
> 			assertTrue(serializationResult instanceof CollectionInputFormat<?>);
> 			@SuppressWarnings("unchecked")
> 			CollectionInputFormat<ElementType> result = (CollectionInputFormat<ElementType>) serializationResult;
> 			GenericInputSplit inputSplit = new GenericInputSplit(0, 1);
> 			inputFormat.open(inputSplit);
> 			result.open(inputSplit);
> 			while(!inputFormat.reachedEnd() && !result.reachedEnd()){
> 				ElementType expectedElement = inputFormat.nextRecord(null);
> 				ElementType actualElement = result.nextRecord(null);
> 				assertEquals(expectedElement, actualElement);
> 			}
> 		}
> 		catch(Exception e) {
> 			e.printStackTrace();
> 			fail(e.toString());
> 		}
> 	}



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