/*
* Copyright 2013, The Sporting Exchange Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.betfair.cougar.netutil.nio.hessian;
import java.io.IOException;
import java.util.Set;
import com.betfair.cougar.core.api.fault.FaultDetail;
import com.betfair.cougar.core.api.transcription.Parameter;
import com.betfair.cougar.core.api.transcription.ParameterType;
import com.betfair.cougar.core.api.transcription.Transcribable;
import com.betfair.cougar.core.api.transcription.TranscribableParams;
import com.betfair.cougar.core.api.transcription.TranscriptionOutput;
import com.caucho.hessian.io.AbstractHessianOutput;
import com.caucho.hessian.io.Serializer;
/**
* A serialiser for serialising transcribable classes that are internal to cougar (specifically {@link FaultDetail})
* </p>
* This class doesn't conform to the contraints required by the {@link TranscribableSerialiser}. As a consequence more control over the serialisation is
* handed to these two classes. The downside is that any changes to the transcription of these classes will break clients
*/
public class FaultDetailSerialiser implements Serializer{
private Set<TranscribableParams> transcriptionParams;
public FaultDetailSerialiser(Set<TranscribableParams> transcriptionParams) {
this.transcriptionParams = transcriptionParams;
}
@Override
public void writeObject(Object obj, final AbstractHessianOutput out) throws IOException {
if (out.addRef(obj)) {
return;
}
FaultDetail transcribableException = (FaultDetail) obj;
TranscriptionOutput to = new TranscriptionOutput() {
@Override
public void writeObject(Object obj, Parameter param, boolean client) throws Exception {
out.writeObject(obj);
}};
int ref = out.writeObjectBegin(obj.getClass().getName());
try {
if (ref >= 0) {
transcribe(to, transcribableException);
}
else {
out.writeInt(0);
out.writeObjectBegin(obj.getClass().getName());
transcribe(to, transcribableException);
}
}
catch (Exception e) {
throw new IOException(e);
}
}
private void transcribe(TranscriptionOutput out, FaultDetail detail) throws Exception {
out.writeObject(detail.getDetailMessage(), FaultDetail.detailMessageParam, false);
if (detail.getCause() != null && detail.getCause() instanceof Transcribable) {
Transcribable tCause = (Transcribable) detail.getCause();
out.writeObject(ClassnameCompatibilityMapper.toMajorMinorPackaging(tCause.getClass(), tCause.getServiceVersion()), FaultDetail.faultClassNameParam, false);
ParameterType type = new ParameterType(detail.getCause().getClass(), null);
out.writeObject(detail.getCause(), new Parameter("exception", type, false), false);
} else {
out.writeObject(null, FaultDetail.faultClassNameParam, false);
}
}
}