/*
*
* 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.transaction;
import java.util.Collections;
import java.util.List;
import org.apache.qpid.proton.amqp.Binary;
import org.apache.qpid.proton.amqp.Symbol;
import org.apache.qpid.proton.amqp.UnsignedLong;
import org.apache.qpid.proton.amqp.transaction.Declared;
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 class DeclaredType extends AbstractDescribedType<Declared,List> implements DescribedTypeConstructor<Declared>
{
private static final Object[] DESCRIPTORS =
{
UnsignedLong.valueOf(0x0000000000000033L), Symbol.valueOf("amqp:declared:list"),
};
private static final UnsignedLong DESCRIPTOR = UnsignedLong.valueOf(0x0000000000000033L);
private DeclaredType(EncoderImpl encoder)
{
super(encoder);
}
public UnsignedLong getDescriptor()
{
return DESCRIPTOR;
}
@Override
protected List wrap(Declared val)
{
return Collections.singletonList(val.getTxnId());
}
public Declared newInstance(Object described)
{
List l = (List) described;
Declared o = new Declared();
if(l.isEmpty())
{
throw new DecodeException("The txn-id field cannot be omitted");
}
o.setTxnId( (Binary) l.get( 0 ) );
return o;
}
public Class<Declared> getTypeClass()
{
return Declared.class;
}
public static void register(Decoder decoder, EncoderImpl encoder)
{
DeclaredType type = new DeclaredType(encoder);
for(Object descriptor : DESCRIPTORS)
{
decoder.register(descriptor, type);
}
encoder.register(type);
}
}