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/*
* Copyright (c) 2010, 2019 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.jersey.message.internal;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.ReaderInterceptor;
import javax.ws.rs.ext.WriterInterceptor;
import javax.xml.transform.Source;
import org.glassfish.jersey.internal.BootstrapBag;
import org.glassfish.jersey.internal.BootstrapConfigurator;
import org.glassfish.jersey.internal.LocalizationMessages;
import org.glassfish.jersey.internal.PropertiesDelegate;
import org.glassfish.jersey.internal.guava.Primitives;
import org.glassfish.jersey.internal.inject.Bindings;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.internal.inject.InstanceBinding;
import org.glassfish.jersey.internal.inject.Providers;
import org.glassfish.jersey.internal.util.PropertiesHelper;
import org.glassfish.jersey.internal.util.ReflectionHelper;
import org.glassfish.jersey.internal.util.ReflectionHelper.DeclaringClassInterfacePair;
import org.glassfish.jersey.internal.util.collection.DataStructures;
import org.glassfish.jersey.internal.util.collection.KeyComparator;
import org.glassfish.jersey.internal.util.collection.KeyComparatorHashMap;
import org.glassfish.jersey.internal.util.collection.KeyComparatorLinkedHashMap;
import org.glassfish.jersey.message.AbstractEntityProviderModel;
import org.glassfish.jersey.message.MessageBodyWorkers;
import org.glassfish.jersey.message.MessageProperties;
import org.glassfish.jersey.message.ReaderModel;
import org.glassfish.jersey.message.WriterModel;
/**
* A factory for managing {@link MessageBodyReader}, {@link MessageBodyWriter} instances.
*
* @author Paul Sandoz
* @author Marek Potociar
* @author Jakub Podlesak
*/
public class MessageBodyFactory implements MessageBodyWorkers {
private static final Logger LOGGER = Logger.getLogger(MessageBodyFactory.class.getName());
/**
* Configurator which initializes and register {@link MessageBodyWorkers} instance into {@link InjectionManager} and
* {@link BootstrapBag}.
*
* @author Petr Bouda
*/
public static class MessageBodyWorkersConfigurator implements BootstrapConfigurator {
private MessageBodyFactory messageBodyFactory;
@Override
public void init(InjectionManager injectionManager, BootstrapBag bootstrapBag) {
messageBodyFactory = new MessageBodyFactory(bootstrapBag.getConfiguration());
InstanceBinding binding =
Bindings.service(messageBodyFactory)
.to(MessageBodyWorkers.class);
injectionManager.register(binding);
}
@Override
public void postInit(InjectionManager injectionManager, BootstrapBag bootstrapBag) {
messageBodyFactory.initialize(injectionManager);
bootstrapBag.setMessageBodyWorkers(messageBodyFactory);
}
}
/**
* Media type comparator.
*/
public static final KeyComparator MEDIA_TYPE_KEY_COMPARATOR =
new KeyComparator() {
private static final long serialVersionUID = 1616819828630827763L;
@Override
public boolean equals(final MediaType mt1, final MediaType mt2) {
// treat compatible types as equal
return mt1.isCompatible(mt2);
}
@Override
public int hash(final MediaType mt) {
// treat compatible types as equal
return mt.getType().toLowerCase(Locale.ROOT).hashCode() + mt.getSubtype().toLowerCase(Locale.ROOT).hashCode();
}
};
/**
* Compares entity providers by the provided class (most specific first)
* and then by the declared supported media types, if the provided classes
* are the same.
*/
static final Comparator> WORKER_BY_TYPE_COMPARATOR =
new Comparator>() {
@Override
public int compare(final AbstractEntityProviderModel o1, final AbstractEntityProviderModel o2) {
final Class o1ProviderClassParam = o1.providedType();
final Class o2ProviderClassParam = o2.providedType();
if (o1ProviderClassParam == o2ProviderClassParam) {
// Compare producible media types.
return compare(o2.declaredTypes(), o1.declaredTypes());
} else if (o1ProviderClassParam.isAssignableFrom(o2ProviderClassParam)) {
return 1;
} else if (o2ProviderClassParam.isAssignableFrom(o1ProviderClassParam)) {
return -1;
}
// Fallback to comparing provided class name.
return CLASS_BY_NAME_COMPARATOR.compare(o1ProviderClassParam, o2ProviderClassParam);
}
private int compare(List mediaTypeList1, List mediaTypeList2) {
mediaTypeList1 = mediaTypeList1.isEmpty() ? MediaTypes.WILDCARD_TYPE_SINGLETON_LIST : mediaTypeList1;
mediaTypeList2 = mediaTypeList2.isEmpty() ? MediaTypes.WILDCARD_TYPE_SINGLETON_LIST : mediaTypeList2;
return MediaTypes.MEDIA_TYPE_LIST_COMPARATOR.compare(mediaTypeList2, mediaTypeList1);
}
};
private static final Comparator> CLASS_BY_NAME_COMPARATOR = Comparator.comparing(Class::getName);
private InjectionManager injectionManager;
private final Boolean legacyProviderOrdering;
private List readers;
private List writers;
private final Map> readersCache = new KeyComparatorHashMap<>(MEDIA_TYPE_KEY_COMPARATOR);
private final Map> writersCache = new KeyComparatorHashMap<>(MEDIA_TYPE_KEY_COMPARATOR);
private static final int LOOKUP_CACHE_INITIAL_CAPACITY = 32;
private static final float LOOKUP_CACHE_LOAD_FACTOR = 0.75f;
private final Map, List> mbrTypeLookupCache = new ConcurrentHashMap<>(
LOOKUP_CACHE_INITIAL_CAPACITY, LOOKUP_CACHE_LOAD_FACTOR, DataStructures.DEFAULT_CONCURENCY_LEVEL);
private final Map, List> mbwTypeLookupCache = new ConcurrentHashMap<>(
LOOKUP_CACHE_INITIAL_CAPACITY, LOOKUP_CACHE_LOAD_FACTOR, DataStructures.DEFAULT_CONCURENCY_LEVEL);
private final Map, List> typeToMediaTypeReadersCache = new ConcurrentHashMap<>(
LOOKUP_CACHE_INITIAL_CAPACITY, LOOKUP_CACHE_LOAD_FACTOR, DataStructures.DEFAULT_CONCURENCY_LEVEL);
private final Map, List> typeToMediaTypeWritersCache = new ConcurrentHashMap<>(
LOOKUP_CACHE_INITIAL_CAPACITY, LOOKUP_CACHE_LOAD_FACTOR, DataStructures.DEFAULT_CONCURENCY_LEVEL);
private final Map> mbrLookupCache = new ConcurrentHashMap<>(
LOOKUP_CACHE_INITIAL_CAPACITY, LOOKUP_CACHE_LOAD_FACTOR, DataStructures.DEFAULT_CONCURENCY_LEVEL);
private final Map> mbwLookupCache = new ConcurrentHashMap<>(
LOOKUP_CACHE_INITIAL_CAPACITY, LOOKUP_CACHE_LOAD_FACTOR, DataStructures.DEFAULT_CONCURENCY_LEVEL);
/**
* Create a new message body factory.
*
* @param configuration configuration. Optional - can be null.
*/
public MessageBodyFactory(Configuration configuration) {
this.legacyProviderOrdering = configuration != null
&& PropertiesHelper.isProperty(configuration.getProperty(MessageProperties.LEGACY_WORKERS_ORDERING));
}
/**
* Must be initialize at the time of completed populated {@link InjectionManager}.
*
* @param injectionManager completed injection manager.
*/
public void initialize(InjectionManager injectionManager) {
this.injectionManager = injectionManager;
// Initialize readers
this.readers = new ArrayList<>();
final Set customMbrs = Providers.getCustomProviders(injectionManager, MessageBodyReader.class);
final Set mbrs = Providers.getProviders(injectionManager, MessageBodyReader.class);
addReaders(readers, customMbrs, true);
mbrs.removeAll(customMbrs);
addReaders(readers, mbrs, false);
if (legacyProviderOrdering) {
readers.sort(new LegacyWorkerComparator<>(MessageBodyReader.class));
for (final ReaderModel model : readers) {
for (final MediaType mt : model.declaredTypes()) {
List readerList = readersCache.get(mt);
if (readerList == null) {
readerList = new ArrayList<>();
readersCache.put(mt, readerList);
}
readerList.add(model.provider());
}
}
}
// Initialize writers
this.writers = new ArrayList<>();
final Set customMbws = Providers.getCustomProviders(injectionManager, MessageBodyWriter.class);
final Set mbws = Providers.getProviders(injectionManager, MessageBodyWriter.class);
addWriters(writers, customMbws, true);
mbws.removeAll(customMbws);
addWriters(writers, mbws, false);
if (legacyProviderOrdering) {
writers.sort(new LegacyWorkerComparator<>(MessageBodyWriter.class));
for (final AbstractEntityProviderModel model : writers) {
for (final MediaType mt : model.declaredTypes()) {
List writerList = writersCache.get(mt);
if (writerList == null) {
writerList = new ArrayList<>();
writersCache.put(mt, writerList);
}
writerList.add(model.provider());
}
}
}
}
/**
* Compares 2 instances implementing/inheriting the same super-type and returns
* which of the two instances has the super-type declaration closer in it's
* inheritance hierarchy tree.
*
* The comparator is optimized to cache results of the previous distance declaration
* computations.
*
* @param common super-type used for computing the declaration distance and
* comparing instances.
*/
private static class DeclarationDistanceComparator implements Comparator {
private final Class declared;
private final Map distanceMap = new HashMap<>();
DeclarationDistanceComparator(final Class declared) {
this.declared = declared;
}
@Override
public int compare(final T o1, final T o2) {
final int d1 = getDistance(o1);
final int d2 = getDistance(o2);
return d2 - d1;
}
private int getDistance(final T t) {
Integer distance = distanceMap.get(t.getClass());
if (distance != null) {
return distance;
}
final DeclaringClassInterfacePair p = ReflectionHelper.getClass(
t.getClass(), declared);
final Class[] as = ReflectionHelper.getParameterizedClassArguments(p);
Class a = (as != null) ? as[0] : null;
distance = 0;
while (a != null && a != Object.class) {
distance++;
a = a.getSuperclass();
}
distanceMap.put(t.getClass(), distance);
return distance;
}
}
/**
* {@link AbstractEntityProviderModel} comparator
* which works as it is described in JAX-RS 2.x specification.
*
* Pairs are sorted by distance from required type, media type and custom/provided (provided goes first).
*
* @param MessageBodyReader or MessageBodyWriter.
* @see DeclarationDistanceComparator
* @see #MEDIA_TYPE_KEY_COMPARATOR
*/
private static class WorkerComparator implements Comparator> {
final Class wantedType;
final MediaType wantedMediaType;
private WorkerComparator(final Class wantedType, final MediaType wantedMediaType) {
this.wantedType = wantedType;
this.wantedMediaType = wantedMediaType;
}
@Override
public int compare(final AbstractEntityProviderModel modelA, final AbstractEntityProviderModel modelB) {
final int distance = compareTypeDistances(modelA.providedType(), modelB.providedType());
if (distance != 0) {
return distance;
}
final int mediaTypeComparison = getMediaTypeDistance(wantedMediaType, modelA.declaredTypes())
- getMediaTypeDistance(wantedMediaType, modelB.declaredTypes());
if (mediaTypeComparison != 0) {
return mediaTypeComparison;
}
if (modelA.isCustom() ^ modelB.isCustom()) {
return (modelA.isCustom()) ? -1 : 1;
}
return 0;
}
private int getMediaTypeDistance(final MediaType wanted, final List mtl) {
if (wanted == null) {
return 0;
}
int distance = 2;
for (final MediaType mt : mtl) {
if (MediaTypes.typeEqual(wanted, mt)) {
return 0;
}
if (distance > 1 && MediaTypes.typeEqual(MediaTypes.getTypeWildCart(wanted), mt)) {
distance = 1;
}
}
return distance;
}
private int compareTypeDistances(final Class providerClassParam1, final Class providerClassParam2) {
return getTypeDistance(providerClassParam1) - getTypeDistance(providerClassParam2);
}
private int getTypeDistance(final Class classParam) {
// cache?
Class tmp1 = wantedType;
Class tmp2 = classParam;
final Iterator> it1 = getClassHierarchyIterator(tmp1);
final Iterator> it2 = getClassHierarchyIterator(tmp2);
int distance = 0;
while (!wantedType.equals(tmp2) && !classParam.equals(tmp1)) {
distance++;
if (!wantedType.equals(tmp2)) {
tmp2 = it2.hasNext() ? it2.next() : null;
}
if (!classParam.equals(tmp1)) {
tmp1 = it1.hasNext() ? it1.next() : null;
}
if (tmp2 == null && tmp1 == null) {
return Integer.MAX_VALUE;
}
}
return distance;
}
private Iterator> getClassHierarchyIterator(final Class classParam) {
if (classParam == null) {
return Collections.>emptyList().iterator();
}
final ArrayList> classes = new ArrayList<>();
final LinkedList> unprocessed = new LinkedList<>();
// Object is special - needs to be always the furthest type.
boolean objectFound = false;
unprocessed.add(classParam);
while (!unprocessed.isEmpty()) {
final Class clazz = unprocessed.removeFirst();
if (Object.class.equals(clazz)) {
objectFound = true;
} else {
classes.add(clazz);
}
unprocessed.addAll(Arrays.asList(clazz.getInterfaces()));
final Class superclazz = clazz.getSuperclass();
if (superclazz != null) {
unprocessed.add(superclazz);
}
}
if (objectFound) {
classes.add(Object.class);
}
return classes.iterator();
}
}
/**
* {@link AbstractEntityProviderModel} comparator which
* works as it is described in JAX-RS 1.x specification.
*
* Pairs are sorted by custom/provided (custom goes first), media type and declaration distance.
*
* @param MessageBodyReader or MessageBodyWriter.
* @see DeclarationDistanceComparator
* @see #MEDIA_TYPE_KEY_COMPARATOR
*/
private static class LegacyWorkerComparator implements Comparator> {
final DeclarationDistanceComparator distanceComparator;
private LegacyWorkerComparator(final Class type) {
distanceComparator = new DeclarationDistanceComparator<>(type);
}
@Override
public int compare(final AbstractEntityProviderModel modelA, final AbstractEntityProviderModel modelB) {
if (modelA.isCustom() ^ modelB.isCustom()) {
return (modelA.isCustom()) ? -1 : 1;
}
final MediaType mtA = modelA.declaredTypes().get(0);
final MediaType mtB = modelB.declaredTypes().get(0);
final int mediaTypeComparison = MediaTypes.PARTIAL_ORDER_COMPARATOR.compare(mtA, mtB);
if (mediaTypeComparison != 0 && !mtA.isCompatible(mtB)) {
return mediaTypeComparison;
}
return distanceComparator.compare(modelA.provider(), modelB.provider());
}
}
private static class ModelLookupKey {
final Class clazz;
final MediaType mediaType;
private ModelLookupKey(final Class clazz, final MediaType mediaType) {
this.clazz = clazz;
this.mediaType = mediaType;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final ModelLookupKey that = (ModelLookupKey) o;
return !(clazz != null ? !clazz.equals(that.clazz) : that.clazz != null)
&& !(mediaType != null ? !mediaType.equals(that.mediaType) : that.mediaType != null);
}
@Override
public int hashCode() {
int result = clazz != null ? clazz.hashCode() : 0;
result = 31 * result + (mediaType != null ? mediaType.hashCode() : 0);
return result;
}
}
private static void addReaders(final List models, final Set readers, final boolean custom) {
for (final MessageBodyReader provider : readers) {
final List values = MediaTypes.createFrom(provider.getClass().getAnnotation(Consumes.class));
models.add(new ReaderModel(provider, values, custom));
}
}
private static void addWriters(final List models, final Set writers, final boolean custom) {
for (final MessageBodyWriter provider : writers) {
final List values = MediaTypes.createFrom(provider.getClass().getAnnotation(Produces.class));
models.add(new WriterModel(provider, values, custom));
}
}
// MessageBodyWorkers
@Override
public Map> getReaders(final MediaType mediaType) {
final Map> subSet = new KeyComparatorLinkedHashMap<>(MEDIA_TYPE_KEY_COMPARATOR);
getCompatibleProvidersMap(mediaType, readers, subSet);
return subSet;
}
@Override
public Map> getWriters(final MediaType mediaType) {
final Map> subSet = new KeyComparatorLinkedHashMap<>(MEDIA_TYPE_KEY_COMPARATOR);
getCompatibleProvidersMap(mediaType, writers, subSet);
return subSet;
}
@Override
public String readersToString(final Map> readers) {
return toString(readers);
}
@Override
public String writersToString(final Map> writers) {
return toString(writers);
}
private String toString(final Map> set) {
final StringWriter sw = new StringWriter();
final PrintWriter pw = new PrintWriter(sw);
for (final Map.Entry> e : set.entrySet()) {
pw.append(e.getKey().toString()).println(" ->");
for (final T t : e.getValue()) {
pw.append(" ").println(t.getClass().getName());
}
}
pw.flush();
return sw.toString();
}
@Override
public MessageBodyReader getMessageBodyReader(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType) {
return getMessageBodyReader(c, t, as, mediaType, null);
}
@Override
public MessageBodyReader getMessageBodyReader(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType,
final PropertiesDelegate propertiesDelegate) {
MessageBodyReader p = null;
if (legacyProviderOrdering) {
if (mediaType != null) {
p = _getMessageBodyReader(c, t, as, mediaType, mediaType, propertiesDelegate);
if (p == null) {
p = _getMessageBodyReader(c, t, as, mediaType, MediaTypes.getTypeWildCart(mediaType), propertiesDelegate);
}
}
if (p == null) {
p = _getMessageBodyReader(c, t, as, mediaType, MediaType.WILDCARD_TYPE, propertiesDelegate);
}
} else {
p = _getMessageBodyReader(c, t, as, mediaType, readers, propertiesDelegate);
}
return p;
}
@Override
@SuppressWarnings("unchecked")
public List getMessageBodyReaderMediaTypes(final Class type,
final Type genericType,
final Annotation[] annotations) {
final Set readableMediaTypes = new LinkedHashSet<>();
for (final ReaderModel model : readers) {
boolean readableWorker = false;
for (final MediaType mt : model.declaredTypes()) {
if (model.isReadable(type, genericType, annotations, mt)) {
readableMediaTypes.add(mt);
readableWorker = true;
}
if (!readableMediaTypes.contains(MediaType.WILDCARD_TYPE)
&& readableWorker
&& model.declaredTypes().contains(MediaType.WILDCARD_TYPE)) {
readableMediaTypes.add(MediaType.WILDCARD_TYPE);
}
}
}
final List mtl = new ArrayList<>(readableMediaTypes);
mtl.sort(MediaTypes.PARTIAL_ORDER_COMPARATOR);
return mtl;
}
@SuppressWarnings("unchecked")
private boolean isCompatible(final AbstractEntityProviderModel model, final Class c, final MediaType mediaType) {
if (model.providedType().equals(Object.class)
|| // looks weird. Could/(should?) be separated to Writer/Reader check
model.providedType().isAssignableFrom(c)
|| c.isAssignableFrom(model.providedType())
) {
for (final MediaType mt : model.declaredTypes()) {
if (mediaType == null) {
return true;
}
if (mediaType.isCompatible(mt)) {
return true;
}
}
}
return false;
}
@SuppressWarnings("unchecked")
private MessageBodyReader _getMessageBodyReader(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType,
final List models,
final PropertiesDelegate propertiesDelegate) {
// Ensure a parameter-less lookup type to prevent excessive memory consumption
// reported in JERSEY-2297
final MediaType lookupType = mediaType == null || mediaType.getParameters().isEmpty()
? mediaType
: new MediaType(mediaType.getType(), mediaType.getSubtype());
final ModelLookupKey lookupKey = new ModelLookupKey(c, lookupType);
List readers = mbrLookupCache.get(lookupKey);
if (readers == null) {
readers = new ArrayList<>();
for (final ReaderModel model : models) {
if (isCompatible(model, c, mediaType)) {
readers.add(model);
}
}
readers.sort(new WorkerComparator<>(c, mediaType));
mbrLookupCache.put(lookupKey, readers);
}
if (readers.isEmpty()) {
return null;
}
final TracingLogger tracingLogger = TracingLogger.getInstance(propertiesDelegate);
MessageBodyReader selected = null;
final Iterator iterator = readers.iterator();
while (iterator.hasNext()) {
final ReaderModel model = iterator.next();
if (model.isReadable(c, t, as, mediaType)) {
selected = (MessageBodyReader) model.provider();
tracingLogger.log(MsgTraceEvent.MBR_SELECTED, selected);
break;
}
tracingLogger.log(MsgTraceEvent.MBR_NOT_READABLE, model.provider());
}
if (tracingLogger.isLogEnabled(MsgTraceEvent.MBR_SKIPPED)) {
while (iterator.hasNext()) {
final ReaderModel model = iterator.next();
tracingLogger.log(MsgTraceEvent.MBR_SKIPPED, model.provider());
}
}
return selected;
}
@SuppressWarnings("unchecked")
private MessageBodyReader _getMessageBodyReader(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType, final MediaType lookup,
final PropertiesDelegate propertiesDelegate) {
final List readers = readersCache.get(lookup);
if (readers == null) {
return null;
}
final TracingLogger tracingLogger = TracingLogger.getInstance(propertiesDelegate);
MessageBodyReader selected = null;
final Iterator iterator = readers.iterator();
while (iterator.hasNext()) {
final MessageBodyReader p = iterator.next();
if (isReadable(p, c, t, as, mediaType)) {
selected = (MessageBodyReader) p;
tracingLogger.log(MsgTraceEvent.MBR_SELECTED, selected);
break;
}
tracingLogger.log(MsgTraceEvent.MBR_NOT_READABLE, p);
}
if (tracingLogger.isLogEnabled(MsgTraceEvent.MBR_SKIPPED)) {
while (iterator.hasNext()) {
final MessageBodyReader p = iterator.next();
tracingLogger.log(MsgTraceEvent.MBR_SKIPPED, p);
}
}
return selected;
}
@Override
public MessageBodyWriter getMessageBodyWriter(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType) {
return getMessageBodyWriter(c, t, as, mediaType, null);
}
@Override
public MessageBodyWriter getMessageBodyWriter(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType,
final PropertiesDelegate propertiesDelegate) {
MessageBodyWriter p = null;
if (legacyProviderOrdering) {
if (mediaType != null) {
p = _getMessageBodyWriter(c, t, as, mediaType, mediaType, propertiesDelegate);
if (p == null) {
p = _getMessageBodyWriter(c, t, as, mediaType, MediaTypes.getTypeWildCart(mediaType), propertiesDelegate);
}
}
if (p == null) {
p = _getMessageBodyWriter(c, t, as, mediaType, MediaType.WILDCARD_TYPE, propertiesDelegate);
}
} else {
p = _getMessageBodyWriter(c, t, as, mediaType, writers, propertiesDelegate);
}
return p;
}
@SuppressWarnings("unchecked")
private MessageBodyWriter _getMessageBodyWriter(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType,
final List models,
final PropertiesDelegate propertiesDelegate) {
// Ensure a parameter-less lookup type to prevent excessive memory consumption
// reported in JERSEY-2297
final MediaType lookupType = mediaType == null || mediaType.getParameters().isEmpty()
? mediaType
: new MediaType(mediaType.getType(), mediaType.getSubtype());
final ModelLookupKey lookupKey = new ModelLookupKey(c, lookupType);
List writers = mbwLookupCache.get(lookupKey);
if (writers == null) {
writers = new ArrayList<>();
for (final WriterModel model : models) {
if (isCompatible(model, c, mediaType)) {
writers.add(model);
}
}
writers.sort(new WorkerComparator<>(c, mediaType));
mbwLookupCache.put(lookupKey, writers);
}
if (writers.isEmpty()) {
return null;
}
final TracingLogger tracingLogger = TracingLogger.getInstance(propertiesDelegate);
MessageBodyWriter selected = null;
final Iterator iterator = writers.iterator();
while (iterator.hasNext()) {
final WriterModel model = iterator.next();
if (model.isWriteable(c, t, as, mediaType)) {
selected = (MessageBodyWriter) model.provider();
tracingLogger.log(MsgTraceEvent.MBW_SELECTED, selected);
break;
}
tracingLogger.log(MsgTraceEvent.MBW_NOT_WRITEABLE, model.provider());
}
if (tracingLogger.isLogEnabled(MsgTraceEvent.MBW_SKIPPED)) {
while (iterator.hasNext()) {
final WriterModel model = iterator.next();
tracingLogger.log(MsgTraceEvent.MBW_SKIPPED, model.provider());
}
}
return selected;
}
@SuppressWarnings("unchecked")
private MessageBodyWriter _getMessageBodyWriter(final Class c, final Type t,
final Annotation[] as,
final MediaType mediaType, final MediaType lookup,
final PropertiesDelegate propertiesDelegate) {
final List writers = writersCache.get(lookup);
if (writers == null) {
return null;
}
final TracingLogger tracingLogger = TracingLogger.getInstance(propertiesDelegate);
MessageBodyWriter selected = null;
final Iterator iterator = writers.iterator();
while (iterator.hasNext()) {
final MessageBodyWriter p = iterator.next();
if (isWriteable(p, c, t, as, mediaType)) {
selected = (MessageBodyWriter) p;
tracingLogger.log(MsgTraceEvent.MBW_SELECTED, selected);
break;
}
tracingLogger.log(MsgTraceEvent.MBW_NOT_WRITEABLE, p);
}
if (tracingLogger.isLogEnabled(MsgTraceEvent.MBW_SKIPPED)) {
while (iterator.hasNext()) {
final MessageBodyWriter p = iterator.next();
tracingLogger.log(MsgTraceEvent.MBW_SKIPPED, p);
}
}
return selected;
}
private static void getCompatibleProvidersMap(
final MediaType mediaType,
final List> set,
final Map> subSet) {
if (mediaType.isWildcardType()) {
getCompatibleProvidersList(mediaType, set, subSet);
} else if (mediaType.isWildcardSubtype()) {
getCompatibleProvidersList(mediaType, set, subSet);
getCompatibleProvidersList(MediaType.WILDCARD_TYPE, set, subSet);
} else {
getCompatibleProvidersList(mediaType, set, subSet);
getCompatibleProvidersList(
MediaTypes.getTypeWildCart(mediaType),
set, subSet);
getCompatibleProvidersList(MediaType.WILDCARD_TYPE, set, subSet);
}
}
private static void getCompatibleProvidersList(
final MediaType mediaType,
final List> set,
final Map> subSet) {
final List providers = set.stream()
.filter(model -> model.declaredTypes().contains(mediaType))
.map(AbstractEntityProviderModel::provider)
.collect(Collectors.toList());
if (!providers.isEmpty()) {
subSet.put(mediaType, Collections.unmodifiableList(providers));
}
}
@Override
@SuppressWarnings("unchecked")
public List getMessageBodyWriterMediaTypes(final Class c, final Type t, final Annotation[] as) {
final Set writeableMediaTypes = new LinkedHashSet<>();
for (final WriterModel model : writers) {
boolean writeableWorker = false;
for (final MediaType mt : model.declaredTypes()) {
if (model.isWriteable(c, t, as, mt)) {
writeableMediaTypes.add(mt);
writeableWorker = true;
}
if (!writeableMediaTypes.contains(MediaType.WILDCARD_TYPE)
&& writeableWorker
&& model.declaredTypes().contains(MediaType.WILDCARD_TYPE)) {
writeableMediaTypes.add(MediaType.WILDCARD_TYPE);
}
}
}
final List mtl = new ArrayList<>(writeableMediaTypes);
mtl.sort(MediaTypes.PARTIAL_ORDER_COMPARATOR);
return mtl;
}
private static final Function MODEL_TO_WRITER = AbstractEntityProviderModel::provider;
@Override
public List getMessageBodyWritersForType(final Class type) {
return getWritersModelsForType(type).stream().map(MODEL_TO_WRITER).collect(Collectors.toList());
}
@Override
public List getWritersModelsForType(final Class type) {
final List writerModels = mbwTypeLookupCache.get(type);
if (writerModels != null) {
return writerModels;
}
return processMessageBodyWritersForType(type);
}
private List processMessageBodyWritersForType(final Class clazz) {
final List suitableWriters = new ArrayList<>();
if (Response.class.isAssignableFrom(clazz)) {
suitableWriters.addAll(writers);
} else {
final Class wrapped = Primitives.wrap(clazz);
for (final WriterModel model : writers) {
if (model.providedType() == null
|| model.providedType() == clazz
|| model.providedType().isAssignableFrom(wrapped)) {
suitableWriters.add(model);
}
}
}
// Type -> Writer.
suitableWriters.sort(WORKER_BY_TYPE_COMPARATOR);
mbwTypeLookupCache.put(clazz, suitableWriters);
// Type -> MediaType.
typeToMediaTypeWritersCache.put(clazz, getMessageBodyWorkersMediaTypesByType(suitableWriters));
return suitableWriters;
}
@Override
public List getMessageBodyWriterMediaTypesByType(final Class type) {
if (!typeToMediaTypeWritersCache.containsKey(type)) {
processMessageBodyWritersForType(type);
}
return typeToMediaTypeWritersCache.get(type);
}
@Override
public List getMessageBodyReaderMediaTypesByType(final Class type) {
if (!typeToMediaTypeReadersCache.containsKey(type)) {
processMessageBodyReadersForType(type);
}
return typeToMediaTypeReadersCache.get(type);
}
@SuppressWarnings("unchecked")
private static List getMessageBodyWorkersMediaTypesByType(
final List> workerModels) {
final Set mediaTypeSet = new HashSet<>();
for (final AbstractEntityProviderModel model : workerModels) {
mediaTypeSet.addAll(model.declaredTypes());
}
final List mediaTypes = new ArrayList<>(mediaTypeSet);
mediaTypes.sort(MediaTypes.PARTIAL_ORDER_COMPARATOR);
return mediaTypes;
}
private static final Function MODEL_TO_READER = AbstractEntityProviderModel::provider;
@Override
public List getMessageBodyReadersForType(final Class type) {
return getReaderModelsForType(type).stream().map(MODEL_TO_READER).collect(Collectors.toList());
}
@Override
public List getReaderModelsForType(final Class type) {
if (!mbrTypeLookupCache.containsKey(type)) {
processMessageBodyReadersForType(type);
}
return mbrTypeLookupCache.get(type);
}
private List processMessageBodyReadersForType(final Class clazz) {
final List suitableReaders = new ArrayList<>();
final Class wrapped = Primitives.wrap(clazz);
for (final ReaderModel reader : readers) {
if (reader.providedType() == null
|| reader.providedType() == clazz
|| reader.providedType().isAssignableFrom(wrapped)) {
suitableReaders.add(reader);
}
}
// Type -> Writer.
suitableReaders.sort(WORKER_BY_TYPE_COMPARATOR);
mbrTypeLookupCache.put(clazz, suitableReaders);
// Type -> MediaType.
typeToMediaTypeReadersCache.put(clazz, getMessageBodyWorkersMediaTypesByType(suitableReaders));
return suitableReaders;
}
@Override
@SuppressWarnings("unchecked")
public MediaType getMessageBodyWriterMediaType(
final Class c, final Type t, final Annotation[] as, final List acceptableMediaTypes) {
for (final MediaType acceptable : acceptableMediaTypes) {
for (final WriterModel model : writers) {
for (final MediaType mt : model.declaredTypes()) {
if (mt.isCompatible(acceptable) && model.isWriteable(c, t, as, acceptable)) {
return MediaTypes.mostSpecific(mt, acceptable);
}
}
}
}
return null;
}
@Override
public Object readFrom(final Class rawType,
final Type type,
final Annotation[] annotations,
final MediaType mediaType,
final MultivaluedMap httpHeaders,
final PropertiesDelegate propertiesDelegate,
final InputStream entityStream,
final Iterable readerInterceptors,
final boolean translateNce) throws WebApplicationException, IOException {
final ReaderInterceptorExecutor executor = new ReaderInterceptorExecutor(
rawType,
type,
annotations,
mediaType,
httpHeaders,
propertiesDelegate,
entityStream,
this,
readerInterceptors,
translateNce, injectionManager);
final TracingLogger tracingLogger = TracingLogger.getInstance(propertiesDelegate);
final long timestamp = tracingLogger.timestamp(MsgTraceEvent.RI_SUMMARY);
try {
final Object instance = executor.proceed();
if (!(instance instanceof Closeable) && !(instance instanceof Source)) {
final InputStream stream = executor.getInputStream();
if (stream != entityStream && stream != null) {
// We only close stream if it differs from the received entity stream,
// otherwise we let the caller close the stream.
ReaderWriter.safelyClose(stream);
}
}
return instance;
} finally {
tracingLogger.logDuration(MsgTraceEvent.RI_SUMMARY, timestamp, executor.getProcessedCount());
}
}
@Override
public OutputStream writeTo(final Object t,
final Class rawType,
final Type type,
final Annotation[] annotations,
final MediaType mediaType,
final MultivaluedMap httpHeaders,
final PropertiesDelegate propertiesDelegate,
final OutputStream entityStream,
final Iterable writerInterceptors)
throws IOException, WebApplicationException {
final WriterInterceptorExecutor executor = new WriterInterceptorExecutor(
t,
rawType,
type,
annotations,
mediaType,
httpHeaders,
propertiesDelegate,
entityStream,
this,
writerInterceptors, injectionManager);
final TracingLogger tracingLogger = TracingLogger.getInstance(propertiesDelegate);
final long timestamp = tracingLogger.timestamp(MsgTraceEvent.WI_SUMMARY);
try {
executor.proceed();
} finally {
tracingLogger.logDuration(MsgTraceEvent.WI_SUMMARY, timestamp, executor.getProcessedCount());
}
return executor.getOutputStream();
}
/**
* Safely invokes {@link javax.ws.rs.ext.MessageBodyWriter#isWriteable isWriteable} method on the supplied provider.
*
* Any exceptions will be logged at finer level.
*
* @param provider message body writer on which the {@code isWriteable} should be invoked.
* @param type the class of instance that is to be written.
* @param genericType the type of instance to be written, obtained either
* by reflection of a resource method return type or via inspection
* of the returned instance. {@link javax.ws.rs.core.GenericEntity}
* provides a way to specify this information at runtime.
* @param annotations an array of the annotations attached to the message entity instance.
* @param mediaType the media type of the HTTP entity.
* @return {@code true} if the type is supported, otherwise {@code false}.
*/
public static boolean isWriteable(
final MessageBodyWriter provider,
final Class type,
final Type genericType,
final Annotation[] annotations,
final MediaType mediaType) {
try {
return provider.isWriteable(type, genericType, annotations, mediaType);
} catch (final Exception ex) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, LocalizationMessages.ERROR_MBW_ISWRITABLE(provider.getClass().getName()), ex);
}
}
return false;
}
/**
* Safely invokes {@link javax.ws.rs.ext.MessageBodyReader#isReadable isReadable} method on the supplied provider.
*
* Any exceptions will be logged at finer level.
*
* @param provider message body reader on which the {@code isReadable} should be invoked.
* Safely invokes {@link javax.ws.rs.ext.MessageBodyReader#isReadable isReadable} method on the underlying
* provider.
* @param type the class of instance to be produced.
* @param genericType the type of instance to be produced. E.g. if the
* message body is to be converted into a method parameter, this will be
* the formal type of the method parameter as returned by
* {@code Method.getGenericParameterTypes}.
* @param annotations an array of the annotations on the declaration of the
* artifact that will be initialized with the produced instance. E.g. if the
* message body is to be converted into a method parameter, this will be
* the annotations on that parameter returned by
* {@code Method.getParameterAnnotations}.
* @param mediaType the media type of the HTTP entity, if one is not
* specified in the request then {@code application/octet-stream} is
* used.
* @return {@code true} if the type is supported, otherwise {@code false}.
*/
public static boolean isReadable(final MessageBodyReader provider,
final Class type,
final Type genericType,
final Annotation[] annotations,
final MediaType mediaType) {
try {
return provider.isReadable(type, genericType, annotations, mediaType);
} catch (final Exception ex) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, LocalizationMessages.ERROR_MBR_ISREADABLE(provider.getClass().getName()), ex);
}
}
return false;
}
}