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https://issues.apache.org/jira/browse/THRIFT-5022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Andy Seaborne updated THRIFT-5022:
----------------------------------
    Description: 
This follows from THRIFT-2530.

{{TIOStreamTransaport.isOpen}} changed to be
 
{noformat}
  public boolean isOpen() {
    return inputStream_ != null && outputStream_ != null;
  }
{noformat}

but constructors {{TIOStreamTransaport(InputStream)}} and 
{{TIOStreamTransaport(OutputStream)}} leave one of {{inputStream_}} or 
{{outputStream_}} null.

This makes isOpen false immediately, no close() called. open() does not change 
the state of object.

 Example:
{noformat}
TIOStreamTransport x1 = new TIOStreamTransport(new ByteArrayInputStream(new 
byte[1]));
 System.out.println(x1.isOpen());
 TIOStreamTransport x2 = new TIOStreamTransport(new ByteArrayOutputStream());
 System.out.println(x2.isOpen());
{noformat}
is prints false both times.
 
It should be:
{noformat}
  public boolean isOpen() {
    return inputStream_ != null || outputStream_ != null;
  }
{noformat}

or an explicit flag for the open/close state but {{inputStream_ != null || 
outputStream_ != null;}} is enough given the current close implementation.


 

 

  was:
This follows from THRIFT-2530.

{{TIOStreamTransaport.isOpen}} changed to be
 
{noformat}
  public boolean isOpen() {
    return inputStream_ != null && outputStream_ != null;
  }
{noformat}

but constructors {{TIOStreamTransaport(InputStream)}} and 
{{TIOStreamTransaport(OutputStream)}} leave one of {{inputStream_}} or 
{{outputStream_}} null.

This makes isOpen false immediately, no close() called. open() does not change 
the state of object.

 Example:
{noformat}
TIOStreamTransport x1 = new TIOStreamTransport(new ByteArrayInputStream(new 
byte[1]));
 System.out.println(x1.isOpen());
 TIOStreamTransport x2 = new TIOStreamTransport(new ByteArrayOutputStream());
 System.out.println(x2.isOpen());
{noformat}
is prints false both times.
 

 

 


> TIOStreamTransport.isOpen is false for InputStream or Outpstream only use.
> --------------------------------------------------------------------------
>
>                 Key: THRIFT-5022
>                 URL: https://issues.apache.org/jira/browse/THRIFT-5022
>             Project: Thrift
>          Issue Type: Task
>          Components: Java - Library
>    Affects Versions: 0.13.0
>            Reporter: Andy Seaborne
>            Priority: Major
>
> This follows from THRIFT-2530.
> {{TIOStreamTransaport.isOpen}} changed to be
>  
> {noformat}
>   public boolean isOpen() {
>     return inputStream_ != null && outputStream_ != null;
>   }
> {noformat}
> but constructors {{TIOStreamTransaport(InputStream)}} and 
> {{TIOStreamTransaport(OutputStream)}} leave one of {{inputStream_}} or 
> {{outputStream_}} null.
> This makes isOpen false immediately, no close() called. open() does not 
> change the state of object.
>  Example:
> {noformat}
> TIOStreamTransport x1 = new TIOStreamTransport(new ByteArrayInputStream(new 
> byte[1]));
>  System.out.println(x1.isOpen());
>  TIOStreamTransport x2 = new TIOStreamTransport(new ByteArrayOutputStream());
>  System.out.println(x2.isOpen());
> {noformat}
> is prints false both times.
>  
> It should be:
> {noformat}
>   public boolean isOpen() {
>     return inputStream_ != null || outputStream_ != null;
>   }
> {noformat}
> or an explicit flag for the open/close state but {{inputStream_ != null || 
> outputStream_ != null;}} is enough given the current close implementation.
>  
>  



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