/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.qpid.proton.codec.transport;
import java.util.AbstractList;
import java.util.List;
import java.util.Map;
import org.apache.qpid.proton.amqp.Symbol;
import org.apache.qpid.proton.amqp.UnsignedLong;
import org.apache.qpid.proton.amqp.transport.ErrorCondition;
import org.apache.qpid.proton.codec.AbstractDescribedType;
import org.apache.qpid.proton.codec.DecodeException;
import org.apache.qpid.proton.codec.Decoder;
import org.apache.qpid.proton.codec.DescribedTypeConstructor;
import org.apache.qpid.proton.codec.EncoderImpl;
public final class ErrorConditionType extends AbstractDescribedType<ErrorCondition,List> implements DescribedTypeConstructor<ErrorCondition>
{
private static final Object[] DESCRIPTORS =
{
UnsignedLong.valueOf(0x000000000000001dL), Symbol.valueOf("amqp:error:list"),
};
private static final UnsignedLong DESCRIPTOR = UnsignedLong.valueOf(0x000000000000001dL);
private ErrorConditionType(EncoderImpl encoder)
{
super(encoder);
}
public UnsignedLong getDescriptor()
{
return DESCRIPTOR;
}
@Override
protected List wrap(ErrorCondition val)
{
return new ErrorConditionWrapper(val);
}
public static class ErrorConditionWrapper extends AbstractList
{
private ErrorCondition _errorCondition;
public ErrorConditionWrapper(ErrorCondition errorCondition)
{
_errorCondition = errorCondition;
}
public Object get(final int index)
{
switch(index)
{
case 0:
return _errorCondition.getCondition();
case 1:
return _errorCondition.getDescription();
case 2:
return _errorCondition.getInfo();
}
throw new IllegalStateException("Unknown index " + index);
}
public int size()
{
return _errorCondition.getInfo() != null
? 3
: _errorCondition.getDescription() != null
? 2
: 1;
}
}
public ErrorCondition newInstance(Object described)
{
List l = (List) described;
ErrorCondition o = new ErrorCondition();
if(l.isEmpty())
{
throw new DecodeException("The condition field cannot be omitted");
}
switch(3 - l.size())
{
case 0:
o.setInfo( (Map) l.get( 2 ) );
case 1:
o.setDescription( (String) l.get( 1 ) );
case 2:
o.setCondition( (Symbol) l.get( 0 ) );
}
return o;
}
public Class<ErrorCondition> getTypeClass()
{
return ErrorCondition.class;
}
public static void register(Decoder decoder, EncoderImpl encoder)
{
ErrorConditionType type = new ErrorConditionType(encoder);
for(Object descriptor : DESCRIPTORS)
{
decoder.register(descriptor, type);
}
encoder.register(type);
}
}