| |
| /* |
| * |
| * 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); |
| } |
| |
| } |
| |