[rules-users] com.google.protobuf.InvalidProtocolBufferException thrown when deserializing

[chrisLi]

Hi Droolers,

    I am using DroolsObjectOutputStream/DroolsObjectInputStream to
serialize/deserialzie a Stateful 

knowledgeSession. The process of serialziation worked well and the size of
the file containing the serialzied 

infomation is about 150M. However, when I tried to deserialize the file into
a session, I got an exception. The 

stacktrace of the exception is as follows:

 com.google.protobuf.InvalidProtocolBufferException: Protocol message was
too large.  May be malicious.  Use CodedInputStream.setSizeLimit() to
increase the size limit.
	at
com.google.protobuf.InvalidProtocolBufferException.sizeLimitExceeded(InvalidProtocolBufferException.java:89)
	at
com.google.protobuf.CodedInputStream.refillBuffer(CodedInputStream.java:720)
	at com.google.protobuf.CodedInputStream.isAtEnd(CodedInputStream.java:666)
	at com.google.protobuf.CodedInputStream.readTag(CodedInputStream.java:99)
	at
org.drools.marshalling.impl.ProtobufMessages$Header$Builder.mergeFrom(ProtobufMessages.java:963)
	at
org.drools.marshalling.impl.ProtobufMessages$Header$Builder.mergeFrom(ProtobufMessages.java:769)
	at
com.google.protobuf.AbstractMessageLite$Builder.mergeFrom(AbstractMessageLite.java:212)
	at
com.google.protobuf.AbstractMessage$Builder.mergeFrom(AbstractMessage.java:746)
	at
org.drools.marshalling.impl.ProtobufMessages$Header.parseFrom(ProtobufMessages.java:720)
	at
org.drools.marshalling.impl.PersisterHelper.readFromStreamWithHeader(PersisterHelper.java:234)
	at
org.drools.marshalling.impl.ProtobufInputMarshaller.loadAndParseSession(ProtobufInputMarshaller.java:221)
	at
org.drools.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:152)
	at
org.drools.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:117)
	at com.sample.engine.CepEngine.deserialize(CepEngine.java:308)
	at com.sample.engine.CepEngine.<init>(CepEngine.java:77)
	at com.sample.test.EventDataConsumer.<init>(EventDataConsumer.java:19)
	at com.sample.test.CepTimeTest.main(CepTimeTest.java:19)
Exception in thread "main" java.lang.NullPointerException
	at com.sample.engine.CepEngine.initCommons(CepEngine.java:138)
	at com.sample.engine.CepEngine.<init>(CepEngine.java:90)
	at com.sample.test.EventDataConsumer.<init>(EventDataConsumer.java:19)
	at com.sample.test.CepTimeTest.main(CepTimeTest.java:19)


It seems that some code of drools set the size limit of deserialized file.
Thus, where can I set the size limit

to meet my needs? Is there a configuration file I can use?

Thank you very much. Any response will be appreciated.






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