decoding exception

[dileep]

Hi all,

I am trying to decode an EXI encoded string using Open EXI I am getting below exception. Please help.

java.io.EOFException
at org.openexi.proc.io.BodyBitInputStream.getEightBits(Unknown Source)
at org.openexi.proc.io.BitPackedScanner.readEightBitsUnsigned(Unknown Source)
at org.openexi.proc.io.Scanner.readUnsignedInteger(Unknown Source)
at org.openexi.proc.io.Scanner.readLiteralString(Unknown Source)
at org.openexi.proc.io.Scanner.readURI(Unknown Source)
at org.openexi.proc.io.SimpleScanner.readQName(Unknown Source)
at org.openexi.proc.io.SimpleScanner.doElementWildcardAny(Unknown Source)
at org.openexi.proc.io.SimpleScanner.nextEvent(Unknown Source)
at org.openexi.sax.EXIReader.parse(Unknown Source)
at org.openexi.sax.EXIReader.parse(Unknown Source)
at com.exirelated.UserDefinedEXIDecoder.decode(UserDefinedEXIDecoder.java:42)
at com.ethernetservice.SimpleQueue.someMethod(SimpleQueue.java:52)
at com.ethernetservice.SimpleQueue.run(SimpleQueue.java:42)
at java.lang.Thread.run(Unknown Source)

I am using the following code :

System.out.println("Packet to be encoded "+packet);
String decodePacket = null;
GrammarCache grammarCache;
short options = GrammarOptions.DEFAULT_OPTIONS;
ByteArrayOutputStream outpu = new ByteArrayOutputStream();
try {
SAXTransformerFactory saxTransformerFactory = (SAXTransformerFactory) SAXTransformerFactory
.newInstance();
SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
saxParserFactory.setNamespaceAware(true);
TransformerHandler transformerHandler = saxTransformerFactory
.newTransformerHandler();
EXIReader reader = new EXIReader();
grammarCache = new GrammarCache(null, options);
reader.setEXISchema(grammarCache);
transformerHandler.setResult(new StreamResult(outpu));
reader.setContentHandler(transformerHandler);
reader.parse(new InputSource((new ByteArrayInputStream(packet.getBytes()))));
decodePacket = outpu.toString();
} catch (Exception e) {
e.printStackTrace();
}

For Encoding :

String encodedPacket=null;
GrammarCache grammarCache;
ByteArrayOutputStream outpu=new ByteArrayOutputStream();
short options = GrammarOptions.DEFAULT_OPTIONS;

try{
    Transmogrifier transmogrifier = new Transmogrifier();
    grammarCache = new GrammarCache(null, options);
    transmogrifier.setEXISchema(grammarCache);
    transmogrifier.setOutputStream(outpu);
    transmogrifier.encode(new InputSource(new ByteArrayInputStream(packet.getBytes())));    
    encodedPacket=outpu.toString();
    }catch(Exception e){
    e.printStackTrace();
}

Packet Used :
String XML = "<START><DATA><IE>0.0000</IE><AE>4.319000</AE><PMAC>AA:BB:CC:DD:EE:FF:GG:HH</PMAC></DATA><MAC>AA:BB:CC:DD:EE:FF:GG:HH</MAC></START>";

[Takuki Kamiya]

It appears that you are converting encoded bytes into a Java String by toString() method. Please avoid that conversion, instead, feed the resulting bytes into the decoder directly.