| /* |
| * |
| * 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; |
| |
| import org.apache.qpid.proton.amqp.DescribedType; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class DynamicDescribedType implements AMQPType<DescribedType> |
| { |
| |
| private final EncoderImpl _encoder; |
| private final Map<TypeEncoding, TypeEncoding> _encodings = new HashMap<TypeEncoding, TypeEncoding>(); |
| private final Object _descriptor; |
| |
| public DynamicDescribedType(EncoderImpl encoder, final Object descriptor) |
| { |
| _encoder = encoder; |
| _descriptor = descriptor; |
| } |
| |
| |
| public Class<DescribedType> getTypeClass() |
| { |
| return DescribedType.class; |
| } |
| |
| public TypeEncoding<DescribedType> getEncoding(final DescribedType val) |
| { |
| TypeEncoding underlyingEncoding = _encoder.getType(val.getDescribed()).getEncoding(val.getDescribed()); |
| TypeEncoding encoding = _encodings.get(underlyingEncoding); |
| if(encoding == null) |
| { |
| encoding = new DynamicDescribedTypeEncoding(underlyingEncoding); |
| _encodings.put(underlyingEncoding, encoding); |
| } |
| |
| return encoding; |
| } |
| |
| public TypeEncoding<DescribedType> getCanonicalEncoding() |
| { |
| return null; |
| } |
| |
| public Collection<TypeEncoding<DescribedType>> getAllEncodings() |
| { |
| Collection values = _encodings.values(); |
| Collection unmodifiable = Collections.unmodifiableCollection(values); |
| return (Collection<TypeEncoding<DescribedType>>) unmodifiable; |
| } |
| |
| public void write(final DescribedType val) |
| { |
| TypeEncoding<DescribedType> encoding = getEncoding(val); |
| encoding.writeConstructor(); |
| encoding.writeValue(val); |
| } |
| |
| private class DynamicDescribedTypeEncoding implements TypeEncoding |
| { |
| private final TypeEncoding _underlyingEncoding; |
| private final TypeEncoding _descriptorType; |
| private final int _constructorSize; |
| |
| |
| public DynamicDescribedTypeEncoding(final TypeEncoding underlyingEncoding) |
| { |
| _underlyingEncoding = underlyingEncoding; |
| _descriptorType = _encoder.getType(_descriptor).getEncoding(_descriptor); |
| _constructorSize = 1 + _descriptorType.getConstructorSize() |
| + _descriptorType.getValueSize(_descriptor) |
| + _underlyingEncoding.getConstructorSize(); |
| } |
| |
| public AMQPType getType() |
| { |
| return DynamicDescribedType.this; |
| } |
| |
| public void writeConstructor() |
| { |
| _encoder.writeRaw(EncodingCodes.DESCRIBED_TYPE_INDICATOR); |
| _descriptorType.writeConstructor(); |
| _descriptorType.writeValue(_descriptor); |
| _underlyingEncoding.writeConstructor(); |
| } |
| |
| public int getConstructorSize() |
| { |
| return _constructorSize; |
| } |
| |
| public void writeValue(final Object val) |
| { |
| _underlyingEncoding.writeValue(((DescribedType)val).getDescribed()); |
| } |
| |
| public int getValueSize(final Object val) |
| { |
| return _underlyingEncoding.getValueSize(((DescribedType) val).getDescribed()); |
| } |
| |
| public boolean isFixedSizeVal() |
| { |
| return _underlyingEncoding.isFixedSizeVal(); |
| } |
| |
| public boolean encodesSuperset(final TypeEncoding encoding) |
| { |
| return (getType() == encoding.getType()) |
| && (_underlyingEncoding.encodesSuperset(((DynamicDescribedTypeEncoding)encoding) |
| ._underlyingEncoding)); |
| } |
| |
| @Override |
| public boolean encodesJavaPrimitive() |
| { |
| return false; |
| } |
| |
| } |
| } |