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http://jira.jboss.com/jira/browse/JBCACHE-1289?page=comments#action_12398952 ]
Elias Ross commented on JBCACHE-1289:
-------------------------------------
Your changes don't work:
org.jboss.cache.CacheException: java.io.StreamCorruptedException: invalid stream header:
79770500
...
Caused by: java.io.StreamCorruptedException: invalid stream header: 79770500
at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
at java.io.ObjectInputStream.<init>(Unknown Source)
at
org.jboss.util.stream.MarshalledValueInputStream.<init>(MarshalledValueInputStream.java:45)
at
org.jboss.cache.marshall.VersionAwareMarshaller.objectFromStream(VersionAwareMarshaller.java:240)
at org.jboss.cache.loader.s3.S3CacheLoader.get(S3CacheLoader.java:260)
Hence the "PushbackInputStream" to put in the header.
VersionAwareMarshalle.objectFromStream implemention uses unreliable
InputStream.available
-----------------------------------------------------------------------------------------
Key: JBCACHE-1289
URL:
http://jira.jboss.com/jira/browse/JBCACHE-1289
Project: JBoss Cache
Issue Type: Bug
Security Level: Public(Everyone can see)
Reporter: Elias Ross
Assigned To: Manik Surtani
InputStream.available() may return less than the complete number of bytes available on
the stream. The following does not work:
@Override
public Object objectFromStream(InputStream is) throws Exception
{
int avbl = is.available(); // MAY RETURN 1 !
byte[] bytes = new byte[avbl];
is.read(bytes, 0, avbl);
return objectFromByteBuffer(bytes);
}
I want to be able to stream objects from the Amazon S3 service. The following does not
work either:
ObjectInputStream ois = new MarshalledValueInputStream(is);
short versionId = ois.readShort();
Marshaller marshaller = getMarshaller(versionId);
return marshaller.objectFromObjectStream(ois);
I'm guessing ReusableObjectInputStream needs to be used and changed to actually
support streams, not byte arrays! But I'm not too familiar with the mechanics.
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