| |
| /* |
| * |
| * 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 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.transport.DeliveryState; |
| import org.apache.qpid.proton.amqp.transport.Disposition; |
| import org.apache.qpid.proton.amqp.transport.Role; |
| 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 DispositionType extends AbstractDescribedType<Disposition,List> implements DescribedTypeConstructor<Disposition> |
| { |
| private static final Object[] DESCRIPTORS = |
| { |
| UnsignedLong.valueOf(0x0000000000000015L), Symbol.valueOf("amqp:disposition:list"), |
| }; |
| |
| private static final UnsignedLong DESCRIPTOR = UnsignedLong.valueOf(0x0000000000000015L); |
| |
| DispositionType(EncoderImpl encoder) |
| { |
| super(encoder); |
| } |
| |
| public UnsignedLong getDescriptor() |
| { |
| return DESCRIPTOR; |
| } |
| |
| @Override |
| protected List wrap(Disposition val) |
| { |
| return new DispositionWrapper(val); |
| } |
| |
| |
| private static final class DispositionWrapper extends AbstractList |
| { |
| |
| private Disposition _disposition; |
| |
| public DispositionWrapper(Disposition disposition) |
| { |
| _disposition = disposition; |
| } |
| |
| public Object get(final int index) |
| { |
| |
| switch(index) |
| { |
| case 0: |
| return _disposition.getRole().getValue(); |
| case 1: |
| return _disposition.getFirst(); |
| case 2: |
| return _disposition.getLast(); |
| case 3: |
| return _disposition.getSettled(); |
| case 4: |
| return _disposition.getState(); |
| case 5: |
| return _disposition.getBatchable(); |
| } |
| |
| throw new IllegalStateException("Unknown index " + index); |
| |
| } |
| |
| public int size() |
| { |
| return _disposition.getBatchable() |
| ? 6 |
| : _disposition.getState() != null |
| ? 5 |
| : _disposition.getSettled() |
| ? 4 |
| : _disposition.getLast() != null |
| ? 3 |
| : 2; |
| |
| } |
| } |
| |
| public Disposition newInstance(Object described) |
| { |
| List l = (List) described; |
| |
| Disposition o = new Disposition(); |
| |
| if(l.isEmpty()) |
| { |
| throw new DecodeException("The first field cannot be omitted"); |
| } |
| |
| switch(6 - l.size()) |
| { |
| |
| case 0: |
| Boolean batchable = (Boolean) l.get(5); |
| o.setBatchable(batchable == null ? false : batchable); |
| case 1: |
| o.setState( (DeliveryState) l.get( 4 ) ); |
| case 2: |
| Boolean settled = (Boolean) l.get(3); |
| o.setSettled(settled == null ? false : settled); |
| case 3: |
| o.setLast( (UnsignedInteger) l.get( 2 ) ); |
| case 4: |
| o.setFirst( (UnsignedInteger) l.get( 1 ) ); |
| case 5: |
| o.setRole( Boolean.TRUE.equals(l.get( 0 )) ? Role.RECEIVER : Role.SENDER ); |
| } |
| |
| |
| return o; |
| } |
| |
| public Class<Disposition> getTypeClass() |
| { |
| return Disposition.class; |
| } |
| |
| |
| |
| |
| public static void register(Decoder decoder, EncoderImpl encoder) |
| { |
| DispositionType type = new DispositionType(encoder); |
| for(Object descriptor : DESCRIPTORS) |
| { |
| decoder.register(descriptor, type); |
| } |
| encoder.register(type); |
| } |
| |
| |
| } |