/*
*
* 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.UnsignedInteger;
import org.apache.qpid.proton.amqp.UnsignedLong;
import org.apache.qpid.proton.amqp.UnsignedShort;
import org.apache.qpid.proton.amqp.transport.Begin;
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 BeginType extends AbstractDescribedType<Begin,List> implements DescribedTypeConstructor<Begin>
{
private static final Object[] DESCRIPTORS =
{
UnsignedLong.valueOf(0x0000000000000011L), Symbol.valueOf("amqp:begin:list"),
};
private static final UnsignedLong DESCRIPTOR = UnsignedLong.valueOf(0x0000000000000011L);
private BeginType(EncoderImpl encoder)
{
super(encoder);
}
public UnsignedLong getDescriptor()
{
return DESCRIPTOR;
}
@Override
protected List wrap(Begin val)
{
return new BeginWrapper(val);
}
private static class BeginWrapper extends AbstractList
{
private Begin _begin;
public BeginWrapper(Begin begin)
{
_begin = begin;
}
public Object get(final int index)
{
switch(index)
{
case 0:
return _begin.getRemoteChannel();
case 1:
return _begin.getNextOutgoingId();
case 2:
return _begin.getIncomingWindow();
case 3:
return _begin.getOutgoingWindow();
case 4:
return _begin.getHandleMax();
case 5:
return _begin.getOfferedCapabilities();
case 6:
return _begin.getDesiredCapabilities();
case 7:
return _begin.getProperties();
}
throw new IllegalStateException("Unknown index " + index);
}
public int size()
{
return _begin.getProperties() != null
? 8
: _begin.getDesiredCapabilities() != null
? 7
: _begin.getOfferedCapabilities() != null
? 6
: (_begin.getHandleMax() != null && !_begin.getHandleMax().equals(UnsignedInteger.MAX_VALUE))
? 5
: 4;
}
}
public Begin newInstance(Object described)
{
List l = (List) described;
Begin o = new Begin();
if(l.size() <= 3)
{
throw new DecodeException("The outgoing-window field cannot be omitted");
}
switch(8 - l.size())
{
case 0:
o.setProperties( (Map) l.get( 7 ) );
case 1:
Object val1 = l.get( 6 );
if( val1 == null || val1.getClass().isArray() )
{
o.setDesiredCapabilities( (Symbol[]) val1 );
}
else
{
o.setDesiredCapabilities( (Symbol) val1 );
}
case 2:
Object val2 = l.get( 5 );
if( val2 == null || val2.getClass().isArray() )
{
o.setOfferedCapabilities( (Symbol[]) val2 );
}
else
{
o.setOfferedCapabilities( (Symbol) val2 );
}
case 3:
UnsignedInteger handleMax = (UnsignedInteger) l.get(4);
o.setHandleMax(handleMax == null ? UnsignedInteger.MAX_VALUE : handleMax);
case 4:
o.setOutgoingWindow( (UnsignedInteger) l.get( 3 ) );
case 5:
o.setIncomingWindow( (UnsignedInteger) l.get( 2 ) );
case 6:
o.setNextOutgoingId( (UnsignedInteger) l.get( 1 ) );
case 7:
o.setRemoteChannel( (UnsignedShort) l.get( 0 ) );
}
return o;
}
public Class<Begin> getTypeClass()
{
return Begin.class;
}
public static void register(Decoder decoder, EncoderImpl encoder)
{
BeginType type = new BeginType(encoder);
for(Object descriptor : DESCRIPTORS)
{
decoder.register(descriptor, type);
}
encoder.register(type);
}
}