| /* |
| * |
| * 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.impl; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.qpid.proton.amqp.UnsignedInteger; |
| import org.apache.qpid.proton.codec.Data; |
| |
| class UnsignedIntegerElement extends AtomicElement<UnsignedInteger> |
| { |
| |
| private final UnsignedInteger _value; |
| |
| UnsignedIntegerElement(Element parent, Element prev, UnsignedInteger i) |
| { |
| super(parent, prev); |
| _value = i; |
| } |
| |
| @Override |
| public int size() |
| { |
| if(isElementOfArray()) |
| { |
| final ArrayElement parent = (ArrayElement) parent(); |
| if(parent.constructorType() == ArrayElement.TINY) |
| { |
| if(_value.intValue() == 0) |
| { |
| return 0; |
| } |
| else |
| { |
| parent.setConstructorType(ArrayElement.SMALL); |
| } |
| } |
| |
| if(parent.constructorType() == ArrayElement.SMALL) |
| { |
| if(0 <= _value.intValue() && _value.intValue() <= 255) |
| { |
| return 1; |
| } |
| else |
| { |
| parent.setConstructorType(ArrayElement.LARGE); |
| } |
| } |
| |
| return 4; |
| |
| } |
| else |
| { |
| return 0 == _value.intValue() ? 1 : (1 <= _value.intValue() && _value.intValue() <= 255) ? 2 : 5; |
| } |
| |
| } |
| |
| @Override |
| public UnsignedInteger getValue() |
| { |
| return _value; |
| } |
| |
| @Override |
| public Data.DataType getDataType() |
| { |
| return Data.DataType.UINT; |
| } |
| |
| @Override |
| public int encode(ByteBuffer b) |
| { |
| int size = size(); |
| if(size > b.remaining()) |
| { |
| return 0; |
| } |
| switch(size) |
| { |
| case 1: |
| if(isElementOfArray()) |
| { |
| b.put((byte)_value.intValue()); |
| } |
| else |
| { |
| b.put((byte)0x43); |
| } |
| break; |
| case 2: |
| b.put((byte)0x52); |
| b.put((byte)_value.intValue()); |
| break; |
| case 5: |
| b.put((byte)0x70); |
| case 4: |
| b.putInt(_value.intValue()); |
| |
| } |
| |
| return size; |
| } |
| } |