Ahmed Ali-Eldin created THRIFT-2582:
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Summary: "FileTransport error" exception is raised when trying to
use Java's TFileTransport
Key: THRIFT-2582
URL: https://issues.apache.org/jira/browse/THRIFT-2582
Project: Thrift
Issue Type: Bug
Components: Java - Library
Affects Versions: 0.9.1
Environment:
Reporter: Ahmed Ali-Eldin
I am trying to wrap a Java class to be called from Python using thrift's
TFileTransport. I tried using two protocols TJSON and TBinary but I keep
getting an exception
org.apache.thrift.transport.TTransportException: FileTransport error: bad
event size
at
org.apache.thrift.transport.TFileTransport.readEvent(TFileTransport.java:327)
at
org.apache.thrift.transport.TFileTransport.read(TFileTransport.java:468)
at
org.apache.thrift.transport.TFileTransport.readAll(TFileTransport.java:439)
at
org.apache.thrift.protocol.TJSONProtocol$LookaheadReader.read(TJSONProtocol.java:263)
at
org.apache.thrift.protocol.TJSONProtocol.readJSONSyntaxChar(TJSONProtocol.java:320)
at
org.apache.thrift.protocol.TJSONProtocol.readJSONArrayStart(TJSONProtocol.java:784)
at
org.apache.thrift.protocol.TJSONProtocol.readMessageBegin(TJSONProtocol.java:795)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:27)
at
org.apache.thrift.transport.TFileProcessor.processUntil(TFileProcessor.java:69)
at
org.apache.thrift.transport.TFileProcessor.processChunk(TFileProcessor.java:102)
at
org.apache.thrift.transport.TFileProcessor.processChunk(TFileProcessor.java:111)
at
org.apache.thrift.transport.TFileProcessor.processChunk(TFileProcessor.java:118)
at
com.netflix.suro.client.SendToPyServer.startThriftServer(SendToPyServer.java:51)
at com.netflix.suro.client.SendToPyServer.main(SendToPyServer.java:67)
This is how my Python client looks:
def __init__(self):
self.outFile=open("../../ThriftFile.in","a")
self.transport = TTransport.TFileObjectTransport(self.outFile)
self.protocol = TJSONProtocol.TJSONProtocol(self.transport)
self.client = sendPyInterface.Client(self.protocol)
self.transport.open()
def send(self,routingKey, message):
self.client.send_send(routingKey, message)
def configClient(self,configurationDict):
self.client.send_ClientConfig(configurationDict)
if __name__ == "__main__":
SuroClient=SuroPyClient()
configurationDict={"ClientConfig.LB_TYPE":"static","ClientConfig.LB_SERVER":"localhost:7101"}
SuroClient.configClient(configurationDict)
SuroClient.send("routingKey", "testMessage")
and this is my server (or rather one version I have tried):
public static void startThriftServer(SendPyInterface.Processor processor) {
try {
File input = new
File("src/main/java/com/netflix/suro/client/ThriftFile.in");
if(!input.exists()){
input.createNewFile();
}
File output = new
File("src/main/java/com/netflix/suro/client/ThriftFile.out");
if(!output.exists()){
output.createNewFile();
}
TFileTransport inputFileTransport = new
TFileTransport(input.getAbsolutePath(), true);
TFileTransport outputFileTransport = new
TFileTransport(output.getAbsolutePath(), false);
inputFileTransport.open();
outputFileTransport.open();
inputFileTransport.setTailPolicy(tailPolicy.WAIT_FOREVER);
TFileProcessor fProcessor =
new TFileProcessor(processor, new
TJSONProtocol.Factory(), inputFileTransport, outputFileTransport);
try {
fProcessor.processChunk();
} catch (TTransportException e) {
e.printStackTrace();
}
System.out.println("File Thrift service started ...");
} catch (Exception e) {
e.printStackTrace();
}
I have been able to read the JSON file using Python, but not Java. JenG
suggested on StackOverFlow that this is a bug.
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