I opened https://issues.apache.org/jira/browse/AVRO-883. Let me know if you need anything else to incorporate this example.
On Fri, Sep 2, 2011 at 6:09 PM, Scott Carey <[email protected]> wrote: > Start with a JIRA ticket and we can discuss and refine there. > > What we accept into the project must be attached as a patch to the JIRA > ticket with the sign-off to Apache and proper license headers on the > content. > > Thanks! > > -Scott > > On 9/2/11 5:53 PM, "W.P. McNeill" <[email protected]> wrote: > > I've got a building version with Chris Wilkes' changes. I'd be happy to > include this in an Avro distribution. Should I just open a JIRA to that > effect and point to this github project? > > On Fri, Sep 2, 2011 at 5:28 PM, Chris Wilkes <[email protected]> wrote: > >> Oh and I'm the one that did the pull request. I changed the name of >> the avro class to "MyPair" as I was confused when reading it with >> avro's own "Pair" class. >> >> What I usually do is put all of my avro schemas into a separate >> project with nothing else in it. Then I have all my other projects >> depend on that one, in this case AvroExample.java would be a in a >> separate project from MyPair.avsc. This gets around weirdness with >> mvn install vs Eclipse seeing the updated files, etc. >> >> On Fri, Sep 2, 2011 at 5:20 PM, W.P. McNeill <[email protected]> wrote: >> > Still having trouble with this. >> > The name change was part of merging the pull request on github. My last >> > email details where I'm at right now. The pull request code looks >> correct; >> > I'm just trying to get it to build in my Maven environment. >> > >> > On Fri, Sep 2, 2011 at 5:19 PM, Scott Carey <[email protected]> >> wrote: >> >> >> >> Are you still having trouble with this? I noticed that the code has >> >> changed and you are using MyPair instead of Pair. Was there a naming >> >> conflict bug with Avro's Pair.java? >> >> -Scott >> >> On 9/2/11 3:46 PM, "W.P. McNeill" <[email protected]> wrote: >> >> >> >> I made changes that got rid of all the deprecated calls. I think I am >> >> using the 1.5 interface correctly. However, I get a runtime error when >> I >> >> try to deserialize into a class using a SpecificDataumReader. The >> problem >> >> starts at line 62 of AvroExample.java. The code looks like this: >> >> DatumReader<Pair> reader = new >> >> SpecificDatumReader<Pair>(Pair.class); >> >> BinaryDecoder decoder = >> >> DecoderFactory.get().binaryDecoder(out.toByteArray(), null); >> >> Pair result = reader.read(null, decoder); >> >> System.out.printf("Left: %s, Right: %s\n", result.left, >> >> result.right); >> >> Where Pair is an object I have SpecificRecord that I have in this >> project. >> >> When I deserialize with reader.read() I get the following runtime >> error: >> >> Exception in thread "main" java.lang.ClassCastException: >> >> org.apache.avro.generic.GenericData$Record cannot be cast to wpmcn.Pair >> >> at wpmcn.AvroExample.serializeSpecific(AvroExample.java:64) >> >> at wpmcn.AvroExample.main(AvroExample.java:73) >> >> When I step into the debugger I see that the GenericDatumReader.read() >> >> function has type D as GenericData. >> >> Presumably I'm calling something wrong but I can't figure out what. >> >> On Fri, Sep 2, 2011 at 3:02 PM, Philip Zeyliger <[email protected]> >> >> wrote: >> >>> >> >>> EncoderFactory.get().binaryEncoder(...). >> >>> I encourage you to file a JIRA and submit a patch to AVRO. Having >> >>> example code in the code base seems like a win to me. >> >>> -- Philip >> >>> >> >>> On Fri, Sep 2, 2011 at 2:41 PM, W.P. McNeill <[email protected]> >> wrote: >> >>>> >> >>>> I'm new to Avro. Since I'm having trouble finding simple examples >> online >> >>>> I'm writing one of my own that I'm putting on github. >> >>>> https://github.com/wpm/AvroExample >> >>>> Hopefully, this will be of help to people like me who are also having >> >>>> trouble finding simple code examples. >> >>>> I want to get this compiling without of hitch in Maven. I had it >> running >> >>>> with a 1.4 version of Avro, but when I changed that to 1.5, some of >> the code >> >>>> no longer works. Specifically, BinaryEncoder can no longer be >> instantiated >> >>>> directly because it is now an abstract class (AvroExample.java: line >> 33) and >> >>>> DecoderFactory.defaultFactory is deprecated (AvroExample.java: line >> 41). >> >>>> How should I modify this code so that it works with the latest and >> >>>> greatest version of Avro? I looked through the Release Notes, but >> the >> >>>> answers weren't obvious. >> >>>> Thanks. >> >>> >> >> >> > >> > >> > >
