opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/dom/serializer/impl/LazyGeneratedCodecRegistry.java

   1 package org.opendaylight.controller.sal.binding.dom.serializer.impl;
   2
   3 import java.lang.ref.WeakReference;
   4 import java.lang.reflect.Field;
   5 import java.util.AbstractMap.SimpleEntry;
   6 import java.util.ArrayList;
   7 import java.util.Collection;
   8 import java.util.Collections;
   9 import java.util.HashMap;
  10 import java.util.HashSet;
  11 import java.util.Iterator;
  12 import java.util.List;
  13 import java.util.Map;
  14 import java.util.Map.Entry;
  15 import java.util.Objects;
  16 import java.util.concurrent.ConcurrentHashMap;
  17 import java.util.concurrent.ConcurrentMap;
  18 import java.util.Set;
  19 import java.util.WeakHashMap;
  20
  21 import org.opendaylight.controller.sal.binding.dom.serializer.api.AugmentationCodec;
  22 import org.opendaylight.controller.sal.binding.dom.serializer.api.ChoiceCaseCodec;
  23 import org.opendaylight.controller.sal.binding.dom.serializer.api.ChoiceCodec;
  24 import org.opendaylight.controller.sal.binding.dom.serializer.api.CodecRegistry;
  25 import org.opendaylight.controller.sal.binding.dom.serializer.api.DataContainerCodec;
  26 import org.opendaylight.controller.sal.binding.dom.serializer.api.DomCodec;
  27 import org.opendaylight.controller.sal.binding.dom.serializer.api.IdentifierCodec;
  28 import org.opendaylight.controller.sal.binding.dom.serializer.api.InstanceIdentifierCodec;
  29 import org.opendaylight.controller.sal.binding.dom.serializer.api.ValueWithQName;
  30 import org.opendaylight.controller.sal.core.api.model.SchemaServiceListener;
  31 import org.opendaylight.yangtools.binding.generator.util.ReferencedTypeImpl;
  32 import org.opendaylight.yangtools.binding.generator.util.Types;
  33 import org.opendaylight.yangtools.concepts.Delegator;
  34 import org.opendaylight.yangtools.concepts.Identifiable;
  35 import org.opendaylight.yangtools.yang.binding.Augmentable;
  36 import org.opendaylight.yangtools.yang.binding.Augmentation;
  37 import org.opendaylight.yangtools.yang.binding.BindingCodec;
  38 import org.opendaylight.yangtools.yang.binding.DataContainer;
  39 import org.opendaylight.yangtools.yang.binding.Identifier;
  40 import org.opendaylight.yangtools.yang.common.QName;
  41 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
  42 import org.opendaylight.yangtools.yang.data.api.Node;
  43 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
  44 import org.opendaylight.yangtools.yang.model.api.ChoiceNode;
  45 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
  46 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
  47 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  48 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
  49 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  50 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  51 import org.slf4j.Logger;
  52 import org.slf4j.LoggerFactory;
  53
  54 import static com.google.common.base.Preconditions.*;
  55 import static org.opendaylight.controller.sal.binding.dom.serializer.impl.IntermediateMapping.*;
  56
  57 import org.opendaylight.yangtools.sal.binding.generator.impl.ModuleContext;
  58 import org.opendaylight.yangtools.sal.binding.model.api.ConcreteType;
  59 import org.opendaylight.yangtools.sal.binding.model.api.Type;
  60 import org.opendaylight.yangtools.sal.binding.model.api.type.builder.GeneratedTypeBuilder;
  61 import org.opendaylight.yangtools.yang.model.api.Module;
  62 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
  63
  64 public class LazyGeneratedCodecRegistry implements //
  65         CodecRegistry, //
  66         SchemaServiceListener, //
  67         GeneratorListener {
  68
  69     private final static Logger LOG = LoggerFactory.getLogger(LazyGeneratedCodecRegistry.class);
  70     private final static LateMixinCodec NOT_READY_CODEC = new LateMixinCodec();
  71
  72     private final InstanceIdentifierCodec instanceIdentifierCodec = new InstanceIdentifierCodecImpl(this);
  73
  74     private TransformerGenerator generator;
  75
  76     // Concrete class to codecs
  77     private Map<Class<?>, DataContainerCodec<?>> containerCodecs = new WeakHashMap<>();
  78     private Map<Class<?>, IdentifierCodec<?>> identifierCodecs = new WeakHashMap<>();
  79     private Map<Class<?>, ChoiceCodecImpl<?>> choiceCodecs = new WeakHashMap<>();
  80     private Map<Class<?>, ChoiceCaseCodecImpl<?>> caseCodecs = new WeakHashMap<>();
  81     private Map<Class<?>, AugmentableCompositeCodec> augmentableCodecs = new WeakHashMap<>();
  82
  83     /** Binding type to encountered classes mapping **/
  84     @SuppressWarnings("rawtypes")
  85     Map<Type, WeakReference<Class>> typeToClass = new ConcurrentHashMap<>();
  86
  87     @SuppressWarnings("rawtypes")
  88     private ConcurrentMap<Type, ChoiceCaseCodecImpl> typeToCaseNodes = new ConcurrentHashMap<>();
  89
  90     private CaseClassMapFacade classToCaseRawCodec = new CaseClassMapFacade();
  91
  92     Map<SchemaPath, GeneratedTypeBuilder> pathToType = new ConcurrentHashMap<>();
  93
  94     private SchemaContext currentSchema;
  95
  96     public TransformerGenerator getGenerator() {
  97         return generator;
  98     }
  99
 100     public void setGenerator(TransformerGenerator generator) {
 101         this.generator = generator;
 102     }
 103
 104     @Override
 105     public InstanceIdentifierCodec getInstanceIdentifierCodec() {
 106         return instanceIdentifierCodec;
 107     }
 108
 109     @Override
 110     public <T extends Augmentation<?>> AugmentationCodec<T> getCodecForAugmentation(Class<T> object) {
 111         // TODO Auto-generated method stub
 112         return null;
 113     }
 114
 115     @Override
 116     public Class<?> getClassForPath(List<QName> names) {
 117         DataSchemaNode node = getSchemaNode(names);
 118         SchemaPath path = node.getPath();
 119         GeneratedTypeBuilder type = pathToType.get(path);
 120         ReferencedTypeImpl typeref = new ReferencedTypeImpl(type.getPackageName(), type.getName());
 121         @SuppressWarnings("rawtypes")
 122         WeakReference<Class> weakRef = typeToClass.get(typeref);
 123         return weakRef.get();
 124     }
 125
 126     @Override
 127     public IdentifierCodec<?> getKeyCodecForPath(List<QName> names) {
 128         @SuppressWarnings("unchecked")
 129         Class<? extends Identifiable<?>> cls = (Class<? extends Identifiable<?>>) getClassForPath(names);
 130         return getIdentifierCodecForIdentifiable(cls);
 131     }
 132
 133     @Override
 134     public <T extends DataContainer> DataContainerCodec<T> getCodecForDataObject(Class<T> type) {
 135         @SuppressWarnings("unchecked")
 136         DataContainerCodec<T> ret = (DataContainerCodec<T>) containerCodecs.get(type);
 137         if (ret != null) {
 138             return ret;
 139         }
 140         Class<? extends BindingCodec<Map<QName, Object>, Object>> newType = generator.transformerFor(type);
 141         BindingCodec<Map<QName, Object>, Object> rawCodec = newInstanceOf(newType);
 142         DataContainerCodecImpl<T> newWrapper = new DataContainerCodecImpl<>(rawCodec);
 143         containerCodecs.put(type, newWrapper);
 144         return newWrapper;
 145     }
 146
 147     @Override
 148     @SuppressWarnings("rawtypes")
 149     public void bindingClassEncountered(Class cls) {
 150         ConcreteType typeRef = Types.typeForClass(cls);
 151         WeakReference<Class> weakRef = new WeakReference<>(cls);
 152         typeToClass.put(typeRef, weakRef);
 153     }
 154
 155     private DataSchemaNode getSchemaNode(List<QName> path) {
 156         QName firstNode = path.get(0);
 157         DataNodeContainer previous = currentSchema.findModuleByNamespaceAndRevision(firstNode.getNamespace(),
 158                 firstNode.getRevision());
 159         Iterator<QName> iterator = path.iterator();
 160         while (iterator.hasNext()) {
 161             QName arg = iterator.next();
 162             DataSchemaNode currentNode = previous.getDataChildByName(arg);
 163             if (currentNode == null && previous instanceof DataNodeContainer) {
 164                 currentNode = searchInChoices(previous, arg);
 165             }
 166             if (currentNode instanceof DataNodeContainer) {
 167                 previous = (DataNodeContainer) currentNode;
 168             } else if (currentNode instanceof LeafSchemaNode || currentNode instanceof LeafListSchemaNode) {
 169                 checkState(!iterator.hasNext(), "Path tries to nest inside leaf node.");
 170                 return currentNode;
 171             }
 172         }
 173         return (DataSchemaNode) previous;
 174     }
 175
 176     private DataSchemaNode searchInChoices(DataNodeContainer node, QName arg) {
 177         Set<DataSchemaNode> children = node.getChildNodes();
 178         for (DataSchemaNode child : children) {
 179             if (child instanceof ChoiceNode) {
 180                 ChoiceNode choiceNode = (ChoiceNode) child;
 181                 DataSchemaNode potential = searchInCases(choiceNode, arg);
 182                 if (potential != null) {
 183                     return potential;
 184                 }
 185             }
 186         }
 187         return null;
 188     }
 189
 190     private DataSchemaNode searchInCases(ChoiceNode choiceNode, QName arg) {
 191         Set<ChoiceCaseNode> cases = choiceNode.getCases();
 192         for (ChoiceCaseNode caseNode : cases) {
 193             DataSchemaNode node = caseNode.getDataChildByName(arg);
 194             if (node != null) {
 195                 return node;
 196             }
 197         }
 198         return null;
 199     }
 200
 201     private <T> T newInstanceOf(Class<?> newType) {
 202         try {
 203             @SuppressWarnings("unchecked")
 204             T ret = (T) newType.newInstance();
 205             return ret;
 206         } catch (InstantiationException e) {
 207             throw new IllegalStateException(e);
 208         } catch (IllegalAccessException e) {
 209             throw new IllegalStateException(e);
 210         }
 211     }
 212
 213     @Override
 214     public <T extends Identifiable<?>> IdentifierCodec<?> getIdentifierCodecForIdentifiable(Class<T> type) {
 215         IdentifierCodec<?> obj = identifierCodecs.get(type);
 216         if (obj != null) {
 217             return obj;
 218         }
 219         Class<? extends BindingCodec<Map<QName, Object>, Object>> newCodec = generator
 220                 .keyTransformerForIdentifiable(type);
 221         BindingCodec<Map<QName, Object>, Object> newInstance;
 222         newInstance = newInstanceOf(newCodec);
 223         IdentifierCodecImpl<?> newWrapper = new IdentifierCodecImpl<>(newInstance);
 224         identifierCodecs.put(type, newWrapper);
 225         return newWrapper;
 226     }
 227
 228     @Override
 229     public void onCodecCreated(Class<?> cls) {
 230         CodecMapping.setIdentifierCodec(cls, instanceIdentifierCodec);
 231     }
 232
 233     @Override
 234     public <T extends Identifier<?>> IdentifierCodec<T> getCodecForIdentifier(Class<T> object) {
 235         @SuppressWarnings("unchecked")
 236         IdentifierCodec<T> obj = (IdentifierCodec<T>) identifierCodecs.get(object);
 237         if (obj != null) {
 238             return obj;
 239         }
 240         Class<? extends BindingCodec<Map<QName, Object>, Object>> newCodec = generator
 241                 .keyTransformerForIdentifier(object);
 242         BindingCodec<Map<QName, Object>, Object> newInstance;
 243         newInstance = newInstanceOf(newCodec);
 244         IdentifierCodecImpl<T> newWrapper = new IdentifierCodecImpl<>(newInstance);
 245         identifierCodecs.put(object, newWrapper);
 246         return newWrapper;
 247     }
 248
 249     @SuppressWarnings("rawtypes")
 250     public ChoiceCaseCodecImpl getCaseCodecFor(Class caseClass) {
 251         ChoiceCaseCodecImpl<?> potential = caseCodecs.get(caseClass);
 252         if (potential != null) {
 253             return potential;
 254         }
 255         ConcreteType typeref = Types.typeForClass(caseClass);
 256         ChoiceCaseCodecImpl caseCodec = typeToCaseNodes.get(typeref);
 257
 258         @SuppressWarnings("unchecked")
 259         Class<? extends BindingCodec> newCodec = generator.caseCodecFor(caseClass, caseCodec.schema);
 260         BindingCodec newInstance = newInstanceOf(newCodec);
 261         caseCodec.setDelegate(newInstance);
 262         caseCodecs.put(caseClass, caseCodec);
 263
 264         for (Entry<Class<?>, ChoiceCodecImpl<?>> choice : choiceCodecs.entrySet()) {
 265             if (choice.getKey().isAssignableFrom(caseClass)) {
 266                 choice.getValue().cases.put(caseClass, caseCodec);
 267             }
 268         }
 269         return caseCodec;
 270     }
 271
 272     public void onModuleContextAdded(SchemaContext schemaContext, Module module, ModuleContext context) {
 273         pathToType.putAll(context.getChildNodes());
 274
 275         captureCases(context.getCases(), schemaContext);
 276     }
 277
 278     private void captureCases(Map<SchemaPath, GeneratedTypeBuilder> cases, SchemaContext module) {
 279         for (Entry<SchemaPath, GeneratedTypeBuilder> caseNode : cases.entrySet()) {
 280             ReferencedTypeImpl typeref = new ReferencedTypeImpl(caseNode.getValue().getPackageName(), caseNode
 281                     .getValue().getName());
 282             ChoiceCaseNode node = (ChoiceCaseNode) SchemaContextUtil.findDataSchemaNode(module, caseNode.getKey());
 283             @SuppressWarnings("rawtypes")
 284             ChoiceCaseCodecImpl value = new ChoiceCaseCodecImpl(node);
 285             typeToCaseNodes.putIfAbsent(typeref, value);
 286         }
 287     }
 288
 289     @Override
 290     public void onGlobalContextUpdated(SchemaContext context) {
 291         currentSchema = context;
 292     }
 293
 294     @SuppressWarnings({ "unchecked", "rawtypes" })
 295     @Override
 296     public void onChoiceCodecCreated(Class<?> choiceClass,
 297             Class<? extends BindingCodec<Map<QName, Object>, Object>> choiceCodec) {
 298         ChoiceCodec<?> oldCodec = choiceCodecs.get(choiceClass);
 299         checkState(oldCodec == null);
 300         BindingCodec<Map<QName, Object>, Object> delegate = newInstanceOf(choiceCodec);
 301         ChoiceCodecImpl<?> newCodec = new ChoiceCodecImpl(delegate);
 302         choiceCodecs.put(choiceClass, newCodec);
 303         CodecMapping.setClassToCaseMap(choiceCodec, (Map<Class, BindingCodec>) classToCaseRawCodec);
 304         CodecMapping.setCompositeNodeToCaseMap(choiceCodec, newCodec.getCompositeToCase());
 305
 306     }
 307
 308     @Override
 309     public void onValueCodecCreated(Class<?> valueClass, Class<?> valueCodec) {
 310         // TODO Auto-generated method stub
 311
 312     }
 313
 314     @Override
 315     public void onCaseCodecCreated(Class<?> choiceClass,
 316             Class<? extends BindingCodec<Map<QName, Object>, Object>> choiceCodec) {
 317         // TODO Auto-generated method stub
 318
 319     }
 320
 321     @Override
 322     public void onDataContainerCodecCreated(Class<?> dataClass,
 323             Class<? extends BindingCodec<Map<QName, Object>, Object>> dataCodec) {
 324         if (Augmentable.class.isAssignableFrom(dataClass)) {
 325             AugmentableCompositeCodec augmentableCodec = getAugmentableCodec(dataClass);
 326             CodecMapping.setAugmentationCodec(dataCodec, augmentableCodec);
 327         }
 328
 329     }
 330
 331     private AugmentableCompositeCodec getAugmentableCodec(Class<?> dataClass) {
 332         AugmentableCompositeCodec ret = augmentableCodecs.get(dataClass);
 333         if (ret != null) {
 334             return ret;
 335         }
 336         ret = new AugmentableCompositeCodec(dataClass);
 337         augmentableCodecs.put(dataClass, ret);
 338         return ret;
 339     }
 340
 341     private static abstract class IntermediateCodec<T> implements //
 342             DomCodec<T>, Delegator<BindingCodec<Map<QName, Object>, Object>> {
 343
 344         private final BindingCodec<Map<QName, Object>, Object> delegate;
 345
 346         @Override
 347         public BindingCodec<Map<QName, Object>, Object> getDelegate() {
 348             return delegate;
 349         }
 350
 351         public IntermediateCodec(BindingCodec<Map<QName, Object>, Object> delegate) {
 352             this.delegate = delegate;
 353         }
 354
 355         @Override
 356         public Node<?> serialize(ValueWithQName<T> input) {
 357             Map<QName, Object> intermediateOutput = delegate.serialize(input);
 358             return toNode(intermediateOutput);
 359         }
 360     }
 361
 362     private static class IdentifierCodecImpl<T extends Identifier<?>> //
 363             extends IntermediateCodec<T> //
 364             implements IdentifierCodec<T> {
 365
 366         public IdentifierCodecImpl(BindingCodec<Map<QName, Object>, Object> delegate) {
 367             super(delegate);
 368         }
 369
 370         @Override
 371         public ValueWithQName<T> deserialize(Node<?> input) {
 372             QName qname = input.getNodeType();
 373             @SuppressWarnings("unchecked")
 374             T value = (T) getDelegate().deserialize((Map<QName, Object>) input);
 375             return new ValueWithQName<T>(qname, value);
 376         }
 377
 378         @Override
 379         public CompositeNode serialize(ValueWithQName<T> input) {
 380             return (CompositeNode) super.serialize(input);
 381         }
 382     }
 383
 384     private static class DataContainerCodecImpl<T extends DataContainer> //
 385             extends IntermediateCodec<T> //
 386             implements DataContainerCodec<T> {
 387
 388         public DataContainerCodecImpl(BindingCodec<Map<QName, Object>, Object> delegate) {
 389             super(delegate);
 390         }
 391
 392         @Override
 393         public ValueWithQName<T> deserialize(Node<?> input) {
 394             if (input == null) {
 395                 return null;
 396             }
 397             QName qname = input.getNodeType();
 398             @SuppressWarnings("unchecked")
 399             T value = (T) getDelegate().deserialize((Map<QName, Object>) input);
 400             return new ValueWithQName<T>(qname, value);
 401         }
 402
 403         @Override
 404         public CompositeNode serialize(ValueWithQName<T> input) {
 405             return (CompositeNode) super.serialize(input);
 406         }
 407     }
 408
 409     @SuppressWarnings("rawtypes")
 410     private static class ChoiceCaseCodecImpl<T extends DataContainer> implements ChoiceCaseCodec<T>, //
 411             Delegator<BindingCodec> {
 412         private final boolean augmenting;
 413         private BindingCodec delegate;
 414
 415         private final Set<String> validNames;
 416         private final Set<QName> validQNames;
 417         private ChoiceCaseNode schema;
 418
 419         public ChoiceCaseCodecImpl(ChoiceCaseNode caseNode) {
 420             this.delegate = NOT_READY_CODEC;
 421             this.schema = caseNode;
 422             validNames = new HashSet<>();
 423             validQNames = new HashSet<>();
 424             for (DataSchemaNode node : caseNode.getChildNodes()) {
 425                 QName qname = node.getQName();
 426                 validQNames.add(qname);
 427                 validNames.add(qname.getLocalName());
 428             }
 429             augmenting = caseNode.isAugmenting();
 430         }
 431
 432         @Override
 433         public ValueWithQName<T> deserialize(Node<?> input) {
 434             throw new UnsupportedOperationException("Direct invocation of this codec is not allowed.");
 435         }
 436
 437         @Override
 438         public CompositeNode serialize(ValueWithQName<T> input) {
 439             throw new UnsupportedOperationException("Direct invocation of this codec is not allowed.");
 440         }
 441
 442         public BindingCodec getDelegate() {
 443             return delegate;
 444         }
 445
 446         public void setDelegate(BindingCodec delegate) {
 447             this.delegate = delegate;
 448         }
 449
 450         public ChoiceCaseNode getSchema() {
 451             return schema;
 452         }
 453
 454         @Override
 455         public boolean isAcceptable(Node<?> input) {
 456             if (false == (input instanceof CompositeNode)) {
 457                 if (augmenting) {
 458                     return checkAugmenting((CompositeNode) input);
 459                 } else {
 460                     return checkLocal((CompositeNode) input);
 461                 }
 462             }
 463             return false;
 464         }
 465
 466         private boolean checkLocal(CompositeNode input) {
 467             QName parent = input.getNodeType();
 468             for (Node<?> childNode : input.getChildren()) {
 469                 QName child = childNode.getNodeType();
 470                 if (false == Objects.equals(parent.getNamespace(), child.getNamespace())) {
 471                     continue;
 472                 }
 473                 if (false == Objects.equals(parent.getRevision(), child.getRevision())) {
 474                     continue;
 475                 }
 476                 if (validNames.contains(child.getLocalName())) {
 477                     return true;
 478                 }
 479             }
 480             return false;
 481         }
 482
 483         private boolean checkAugmenting(CompositeNode input) {
 484             for (Node<?> child : input.getChildren()) {
 485                 if (validQNames.contains(child.getNodeType())) {
 486                     return true;
 487                 }
 488             }
 489             return false;
 490         }
 491     }
 492
 493     private static class ChoiceCodecImpl<T> implements ChoiceCodec<T> {
 494
 495         private final BindingCodec<Map<QName, Object>, Object> delegate;
 496
 497         @SuppressWarnings("rawtypes")
 498         private final Map<Class, ChoiceCaseCodecImpl<?>> cases = new WeakHashMap<>();
 499
 500         private final CaseCompositeNodeMapFacade CompositeToCase;
 501
 502         public ChoiceCodecImpl(BindingCodec<Map<QName, Object>, Object> delegate) {
 503             this.delegate = delegate;
 504             this.CompositeToCase = new CaseCompositeNodeMapFacade(cases);
 505         }
 506
 507         @Override
 508         public ValueWithQName<T> deserialize(Node<?> input) {
 509             throw new UnsupportedOperationException("Direct invocation of this codec is not allowed.");
 510         }
 511
 512         @Override
 513         public Node<?> serialize(ValueWithQName<T> input) {
 514             throw new UnsupportedOperationException("Direct invocation of this codec is not allowed.");
 515         }
 516
 517         public CaseCompositeNodeMapFacade getCompositeToCase() {
 518             return CompositeToCase;
 519         }
 520
 521         public Map<Class, ChoiceCaseCodecImpl<?>> getCases() {
 522             return cases;
 523         }
 524
 525         public BindingCodec<Map<QName, Object>, Object> getDelegate() {
 526             return delegate;
 527         }
 528
 529     }
 530
 531     @SuppressWarnings("rawtypes")
 532     private class CaseClassMapFacade extends MapFacadeBase {
 533
 534         @Override
 535         public Set<java.util.Map.Entry<Class, BindingCodec<Object, Object>>> entrySet() {
 536             return null;
 537         }
 538
 539         @Override
 540         public BindingCodec get(Object key) {
 541             if (key instanceof Class) {
 542                 Class cls = (Class) key;
 543                 bindingClassEncountered(cls);
 544                 ChoiceCaseCodecImpl caseCodec = getCaseCodecFor(cls);
 545                 return caseCodec.getDelegate();
 546             }
 547             return null;
 548         }
 549     }
 550
 551     @SuppressWarnings("rawtypes")
 552     private static class CaseCompositeNodeMapFacade extends MapFacadeBase<CompositeNode> {
 553
 554         final Map<Class, ChoiceCaseCodecImpl<?>> choiceCases;
 555
 556         public CaseCompositeNodeMapFacade(Map<Class, ChoiceCaseCodecImpl<?>> choiceCases) {
 557             this.choiceCases = choiceCases;
 558         }
 559
 560         @Override
 561         public Set<java.util.Map.Entry<CompositeNode, BindingCodec>> entrySet() {
 562             return null;
 563         }
 564
 565         @Override
 566         public BindingCodec get(Object key) {
 567             if (false == (key instanceof CompositeNode)) {
 568                 return null;
 569             }
 570             for (java.util.Map.Entry<Class, ChoiceCaseCodecImpl<?>> entry : choiceCases.entrySet()) {
 571                 ChoiceCaseCodecImpl<?> codec = entry.getValue();
 572                 if (codec.isAcceptable((CompositeNode) key)) {
 573                     return codec.getDelegate();
 574                 }
 575             }
 576             return null;
 577         }
 578     }
 579
 580     /**
 581      * This map is used as only facade for {@link BindingCodec} in different
 582      * classloaders to retrieve codec dynamicly based on provided key.
 583      *
 584      * @param <T>
 585      *            Key type
 586      */
 587     @SuppressWarnings("rawtypes")
 588     private static abstract class MapFacadeBase<T> implements Map<T, BindingCodec> {
 589
 590         @Override
 591         public boolean containsKey(Object key) {
 592             return get(key) != null;
 593         }
 594
 595         @Override
 596         public void clear() {
 597             throw notModifiable();
 598         }
 599
 600         @Override
 601         public boolean equals(Object obj) {
 602             return super.equals(obj);
 603         }
 604
 605         @Override
 606         public BindingCodec remove(Object key) {
 607             return null;
 608         }
 609
 610         @Override
 611         public int size() {
 612             return 0;
 613         }
 614
 615         @Override
 616         public Collection<BindingCodec> values() {
 617             return null;
 618         }
 619
 620         private UnsupportedOperationException notModifiable() {
 621             return new UnsupportedOperationException("Not externally modifiable.");
 622         }
 623
 624         @Override
 625         public BindingCodec<Map<QName, Object>, Object> put(T key, BindingCodec value) {
 626             throw notModifiable();
 627         }
 628
 629         @Override
 630         public void putAll(Map<? extends T, ? extends BindingCodec> m) {
 631             throw notModifiable();
 632         }
 633
 634         @Override
 635         public int hashCode() {
 636             return super.hashCode();
 637         }
 638
 639         @Override
 640         public boolean isEmpty() {
 641             return false;
 642         }
 643
 644         @Override
 645         public Set<T> keySet() {
 646             return null;
 647         }
 648
 649         @Override
 650         public Set<java.util.Map.Entry<T, BindingCodec>> entrySet() {
 651             return null;
 652         }
 653
 654         @Override
 655         public boolean containsValue(Object value) {
 656             return false;
 657         }
 658     }
 659
 660     @SuppressWarnings({ "rawtypes", "unchecked" })
 661     private class AugmentableCompositeCodec implements BindingCodec {
 662
 663         private final Class augmentableType;
 664
 665         Map<Class, BindingCodec> rawAugmentationCodecs = new WeakHashMap<>();
 666
 667         public AugmentableCompositeCodec(Class type) {
 668             checkArgument(Augmentable.class.isAssignableFrom(type));
 669             augmentableType = type;
 670         }
 671
 672         @Override
 673         public Object serialize(Object input) {
 674             if (input instanceof Augmentable<?>) {
 675
 676                 Map<Class, Augmentation> augmentations = getAugmentations(input);
 677                 return serializeImpl(augmentations);
 678             }
 679             return null;
 680         }
 681
 682         private Map<Class, Augmentation> getAugmentations(Object input) {
 683             Field augmentationField;
 684             try {
 685                 augmentationField = input.getClass().getDeclaredField("augmentation");
 686                 augmentationField.setAccessible(true);
 687                 Map<Class, Augmentation> augMap = (Map<Class, Augmentation>) augmentationField.get(input);
 688                 return augMap;
 689             } catch (NoSuchFieldException e) {
 690
 691             } catch (SecurityException e) {
 692
 693             } catch (IllegalArgumentException e) {
 694
 695             } catch (IllegalAccessException e) {
 696
 697             }
 698             return Collections.emptyMap();
 699         }
 700
 701         private List serializeImpl(Map<Class, Augmentation> input) {
 702             List ret = new ArrayList<>();
 703             for (Entry<Class, Augmentation> entry : input.entrySet()) {
 704                 BindingCodec codec = getRawCodecForAugmentation(entry.getKey());
 705                 List output = (List) codec.serialize(new ValueWithQName(null, entry.getValue()));
 706                 ret.addAll(output);
 707             }
 708             return ret;
 709         }
 710
 711         private BindingCodec getRawCodecForAugmentation(Class key) {
 712             BindingCodec ret = rawAugmentationCodecs.get(key);
 713             if (ret != null) {
 714                 return ret;
 715             }
 716             try {
 717                 Class<? extends BindingCodec> retClass = generator.augmentationTransformerFor(key);
 718                 ret = retClass.newInstance();
 719                 rawAugmentationCodecs.put(key, ret);
 720                 return ret;
 721             } catch (InstantiationException e) {
 722
 723             } catch (IllegalAccessException e) {
 724
 725             }
 726             return null;
 727         }
 728
 729         @Override
 730         public Map<Class, Augmentation> deserialize(Object input) {
 731             Map<Class, Augmentation> ret = new HashMap<>();
 732             if (input instanceof CompositeNode) {
 733                 for (Entry<Class, BindingCodec> codec : rawAugmentationCodecs.entrySet()) {
 734                     Augmentation value = (Augmentation) codec.getValue().deserialize(input);
 735                     if (value != null) {
 736                         ret.put(codec.getKey(), value);
 737                     }
 738                 }
 739             }
 740             return ret;
 741         }
 742
 743         public Map<Class, BindingCodec> getRawAugmentationCodecs() {
 744             return rawAugmentationCodecs;
 745         }
 746
 747         public void setRawAugmentationCodecs(Map<Class, BindingCodec> rawAugmentationCodecs) {
 748             this.rawAugmentationCodecs = rawAugmentationCodecs;
 749         }
 750
 751         public Class getAugmentableType() {
 752             return augmentableType;
 753         }
 754     }
 755
 756     @SuppressWarnings({ "rawtypes", "unchecked" })
 757     private static class LateMixinCodec implements BindingCodec, Delegator<BindingCodec> {
 758
 759         private BindingCodec delegate;
 760
 761         @Override
 762         public BindingCodec getDelegate() {
 763             if (delegate == null) {
 764                 throw new IllegalStateException("Codec not initialized yet.");
 765             }
 766             return delegate;
 767         }
 768
 769         @Override
 770         public Object deserialize(Object input) {
 771             return getDelegate().deserialize(input);
 772         }
 773
 774         @Override
 775         public Object serialize(Object input) {
 776             return getDelegate().serialize(input);
 777         }
 778     }
 779 }