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https://issues.apache.org/jira/browse/AVRO-1172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13691843#comment-13691843
]
Hudson commented on AVRO-1172:
------------------------------
Integrated in AvroJava #379 (See [https://builds.apache.org/job/AvroJava/379/])
AVRO-1172. Avro C++ Json Decoder: Double cannot be decoded (Revision
1495955)
Result = SUCCESS
thiru :
Files :
* /avro/trunk/CHANGES.txt
* /avro/trunk/lang/c++/impl/json/JsonIO.cc
* /avro/trunk/lang/c++/impl/json/JsonIO.hh
* /avro/trunk/lang/c++/test/CodecTests.cc
> Avro C++ Json Decoder: Double cannot be decoded
> -----------------------------------------------
>
> Key: AVRO-1172
> URL: https://issues.apache.org/jira/browse/AVRO-1172
> Project: Avro
> Issue Type: Bug
> Components: c++
> Affects Versions: 1.7.1
> Environment: Built under msys and gcc-4.6.1 on a Windows7/64 bit
> machine.
> Reporter: Sam Overend
> Assignee: Sam Overend
> Labels: patch
> Attachments: AVRO-1172-2.patch, AVRO-1172.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Short version: Looks like the C++ version of AVRO-1099.
> Long version: When a non-decimal double is read from a json file, the parser
> treats it as an long, not a double, and therefore throws an exception.
> Two possible solutions: (1) The decoder should be able to convert longs to
> doubles or acknowledge that a long is a type of double.
> (2) The encoder should always output a double with a decimal point.
> Example code is included below. Output is:
> (1.01, 2.13)
> terminate called after throwing an instance of 'avro::Exception'
> what(): Incorrect token in the stream. Expected: Double, found Integer
> After running complex.json is: {"re":1,"im":2.13
> #include <iostream>
> #include <fstream>
> using namespace std;
> #include "cpx.hh"
> #include "avro/Compiler.hh"
> #include "avro/Encoder.hh"
> #include "avro/Decoder.hh"
> avro::ValidSchema load(const char* filename)
> {
> std::ifstream ifs(filename);
> avro::ValidSchema result;
> avro::compileJsonSchema(ifs, result);
> return result;
> }
> void OutTest()
> {
> avro::ValidSchema cpxSchema = load("cpx_schema.json");
> std::auto_ptr<avro::OutputStream> out =
> avro::fileOutputStream("complex.json",1);
> avro::EncoderPtr e = avro::jsonEncoder(cpxSchema);
> e->init(*out);
> c::cpx c1;
> c1.re = 1.01;
> c1.im = 2.13;
> avro::encode(*e, c1);
> out->flush();
> }
> void OutTest2()
> {
> avro::ValidSchema cpxSchema = load("cpx_schema.json");
> std::auto_ptr<avro::OutputStream> out =
> avro::fileOutputStream("complex.json",1);
> avro::EncoderPtr e = avro::jsonEncoder(cpxSchema);
> e->init(*out);
> c::cpx c1;
> c1.re = 1.0;
> c1.im = 2.13;
> avro::encode(*e, c1);
> out->flush();
> }
> void InTest()
> {
> avro::ValidSchema cpxSchema = load("cpx_schema.json");
> std::auto_ptr<avro::InputStream> in =
> avro::fileInputStream("complex.json",1);
> avro::DecoderPtr d = avro::jsonDecoder(cpxSchema);
> d->init(*in);
> c::cpx c2;
> avro::decode(*d, c2);
> std::cout << '(' << c2.re << ", " << c2.im << ')' << std::endl;
> }
> int main()
> {
> OutTest();
> InTest();
> OutTest2();
> InTest();
> return 0;
> }
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