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org.eclipse.persistence.jpa.rs.PersistenceContext Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2020 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,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// dclarke/tware - initial
// 2014-09-01-2.6.0 Dmitry Kornilov
// - JPARS 2.0 related changes
package org.eclipse.persistence.jpa.rs;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URI;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import jakarta.persistence.EntityManager;
import jakarta.persistence.EntityManagerFactory;
import jakarta.persistence.Query;
import jakarta.persistence.RollbackException;
import jakarta.persistence.spi.PersistenceUnitInfo;
import jakarta.ws.rs.core.MediaType;
import jakarta.xml.bind.JAXBElement;
import jakarta.xml.bind.JAXBException;
import jakarta.xml.bind.Marshaller;
import jakarta.xml.bind.Unmarshaller;
import jakarta.xml.bind.ValidationEvent;
import jakarta.xml.bind.ValidationEventHandler;
import jakarta.xml.bind.annotation.adapters.XmlAdapter;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.stream.StreamSource;
import org.eclipse.persistence.config.PersistenceUnitProperties;
import org.eclipse.persistence.descriptors.ClassDescriptor;
import org.eclipse.persistence.descriptors.FetchGroupManager;
import org.eclipse.persistence.dynamic.DynamicEntity;
import org.eclipse.persistence.dynamic.DynamicType;
import org.eclipse.persistence.eis.mappings.EISCompositeCollectionMapping;
import org.eclipse.persistence.internal.helper.ConversionManager;
import org.eclipse.persistence.internal.jaxb.SessionEventListener;
import org.eclipse.persistence.internal.jpa.EJBQueryImpl;
import org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl;
import org.eclipse.persistence.internal.jpa.rs.weaving.PersistenceWeavedRest;
import org.eclipse.persistence.internal.jpa.rs.weaving.RelationshipInfo;
import org.eclipse.persistence.internal.jpa.rs.weaving.RestAdapterClassWriter;
import org.eclipse.persistence.internal.jpa.rs.weaving.RestCollectionAdapterClassWriter;
import org.eclipse.persistence.internal.jpa.rs.weaving.RestReferenceAdapterV2ClassWriter;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.internal.security.PrivilegedGetDeclaredFields;
import org.eclipse.persistence.internal.security.PrivilegedMethodInvoker;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.jaxb.JAXBContext;
import org.eclipse.persistence.jaxb.JAXBContextProperties;
import org.eclipse.persistence.jaxb.MarshallerProperties;
import org.eclipse.persistence.jaxb.ObjectGraph;
import org.eclipse.persistence.jaxb.UnmarshallerProperties;
import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory;
import org.eclipse.persistence.jaxb.metadata.MetadataSource;
import org.eclipse.persistence.jpa.JpaHelper;
import org.eclipse.persistence.jpa.PersistenceProvider;
import org.eclipse.persistence.jpa.dynamic.JPADynamicHelper;
import org.eclipse.persistence.jpa.rs.annotations.RestPageableQueries;
import org.eclipse.persistence.jpa.rs.annotations.RestPageableQuery;
import org.eclipse.persistence.jpa.rs.exceptions.JPARSException;
import org.eclipse.persistence.jpa.rs.features.FeatureSet;
import org.eclipse.persistence.jpa.rs.features.ServiceVersion;
import org.eclipse.persistence.jpa.rs.features.fieldsfiltering.FieldsFilter;
import org.eclipse.persistence.jpa.rs.util.CollectionWrapperBuilder;
import org.eclipse.persistence.jpa.rs.util.IdHelper;
import org.eclipse.persistence.jpa.rs.util.JPARSLogger;
import org.eclipse.persistence.jpa.rs.util.JTATransactionWrapper;
import org.eclipse.persistence.jpa.rs.util.ObjectGraphBuilder;
import org.eclipse.persistence.jpa.rs.util.ResourceLocalTransactionWrapper;
import org.eclipse.persistence.jpa.rs.util.TransactionWrapper;
import org.eclipse.persistence.jpa.rs.util.list.ReadAllQueryResultCollection;
import org.eclipse.persistence.jpa.rs.util.list.ReportQueryResultCollection;
import org.eclipse.persistence.jpa.rs.util.list.ReportQueryResultList;
import org.eclipse.persistence.jpa.rs.util.list.ReportQueryResultListItem;
import org.eclipse.persistence.jpa.rs.util.list.SingleResultQueryList;
import org.eclipse.persistence.jpa.rs.util.xmladapters.LinkAdapter;
import org.eclipse.persistence.jpa.rs.util.xmladapters.RelationshipLinkAdapter;
import org.eclipse.persistence.logging.SessionLog;
import org.eclipse.persistence.mappings.DatabaseMapping;
import org.eclipse.persistence.mappings.ForeignReferenceMapping;
import org.eclipse.persistence.mappings.ObjectReferenceMapping;
import org.eclipse.persistence.oxm.mappings.XMLInverseReferenceMapping;
import org.eclipse.persistence.queries.DatabaseQuery;
import org.eclipse.persistence.queries.FetchGroup;
import org.eclipse.persistence.queries.FetchGroupTracker;
import org.eclipse.persistence.sessions.DatabaseSession;
import org.eclipse.persistence.sessions.Session;
import org.eclipse.persistence.sessions.UnitOfWork;
/**
* A wrapper around the JPA and JAXB artifacts used to persist an application.
*
* A PersistenceContext provides the capability of using the same persistence unit in JPA to
* to interact with a Database or other JPA-capable data source and in JAXB to interact with either
* XML or JSON.
*
* A PersistenceContext can wrap either an existing persistence unit (EntityManagerFactory), or it can be used to bootstrap a
* fully dynamic persistence unit.
*
* @author douglas.clarke, tom.ware
*/
public class PersistenceContext {
public static final String JPARS_CONTEXT = "eclipselink.jpars.context";
public static final String CLASS_NAME = PersistenceContext.class.getName();
public static final String SESSION_VERSION_PROPERTY = "jaxb.context.version";
protected List> adapters = null;
/**
* The name of the persistence context is used to look it up. By default it will be the
* persistence unit name of the JPA persistence unit.
*/
protected String name = null;
/** The EntityManagerFactory used to interact using JPA **/
protected EntityManagerFactory emf;
/** The JAXBConext used to produce JSON or XML **/
protected JAXBContext jaxbContext = null;
/** The URI of the Persistence context. This is used to build Links in JSON and XML **/
protected URI baseURI = null;
private SessionLog sessionLog = null;
protected TransactionWrapper transaction = null;
private Boolean weavingEnabled = null;
private ServiceVersion version = ServiceVersion.NO_VERSION;
/** Builder for collection proxies used in JPARS 2.0. **/
private CollectionWrapperBuilder collectionWrapperBuilder;
/**
* JPARS pageable queries map.
* Key: named query name
* Value: corresponding RestPageableQuery annotation
*/
private Map pageableQueries;
protected PersistenceContext() {
}
/**
* Instantiates a new persistence context.
*
* @param emfName the emf name
* @param emf the emf
* @param defaultURI the default uri
*/
public PersistenceContext(String emfName, EntityManagerFactoryImpl emf, URI defaultURI) {
super();
init(emfName, emf, defaultURI, ServiceVersion.NO_VERSION);
}
/**
* Instantiates a new persistence context.
*
* @param emfName the emf name
* @param emf the emf
* @param defaultURI the default uri
* @param version REST service version
*/
public PersistenceContext(String emfName, EntityManagerFactoryImpl emf, URI defaultURI, ServiceVersion version) {
super();
init(emfName, emf, defaultURI, version);
}
private void init(String emfName, EntityManagerFactoryImpl emf, URI defaultURI, ServiceVersion version) {
this.emf = emf;
this.name = emfName;
this.baseURI = defaultURI;
this.sessionLog = emf.getServerSession().getSessionLog();
if (version != null) {
this.version = version;
} else {
this.version = ServiceVersion.NO_VERSION;
}
if (getServerSession().hasExternalTransactionController()) {
transaction = new JTATransactionWrapper();
} else {
transaction = new ResourceLocalTransactionWrapper();
}
try {
this.jaxbContext = createDynamicJAXBContext(emf.getDatabaseSession());
} catch (JAXBException jaxbe) {
JPARSLogger.exception(getSessionLog(), "exception_creating_jaxb_context", new Object[] { emfName, jaxbe.toString() }, jaxbe);
emf.close();
} catch (IOException e) {
JPARSLogger.exception(getSessionLog(), "exception_creating_jaxb_context", new Object[] { emfName, e.toString() }, e);
emf.close();
}
}
/**
* Checks if is weaving enabled.
*
* @return true, if is weaving enabled
*/
public boolean isWeavingEnabled() {
if (this.weavingEnabled == null) {
this.weavingEnabled = getWeavingProperty();
}
return this.weavingEnabled;
}
/**
* Gets the version as it appears in URI.
*
* @return The version.
*/
public String getVersion() {
return version.getCode();
}
/**
* Gets JPARS version.
*
* @return JPARS version.
*/
public ServiceVersion getServiceVersion() {
return version;
}
/**
* This method is used to help construct a JAXBContext from an existing EntityManagerFactory.
*
* For each package in the EntityManagerFactory, a MetadataSource that is capable of building a JAXBContext
* that creates the same mappings in JAXB is created. These MetadataSources are used to constuct the JAXContext
* that is used for JSON and XML translation.
* @param metadataSources
* @param session
*/
protected void addDynamicXMLMetadataSources(List metadataSources, AbstractSession session) {
Set packages = new HashSet();
for (Class descriptorClass : session.getDescriptors().keySet()) {
String packageName = "";
int lastDotIndex = descriptorClass.getName().lastIndexOf('.');
if (lastDotIndex > 0) {
packageName = descriptorClass.getName().substring(0, lastDotIndex);
}
if (!packages.contains(packageName)) {
packages.add(packageName);
}
}
for (String packageName : packages) {
metadataSources.add(getSupportedFeatureSet().getDynamicMetadataSource(session, packageName));
}
}
/**
* A part of the facade over the JPA API.
* Persist an entity in JPA and commit.
* @param tenantId
* @param entity
* @throws Exception
*/
public void create(Map tenantId, Object entity) throws Exception {
EntityManager em = getEmf().createEntityManager(tenantId);
try {
transaction.beginTransaction(em);
em.persist(entity);
transaction.commitTransaction(em);
} catch (RollbackException ex) {
throw ex;
} catch (Exception ex) {
transaction.rollbackTransaction(em);
throw ex;
} finally {
em.close();
}
}
/**
* Create a JAXBContext based on the EntityManagerFactory for this PersistenceContext.
* @param session
* @return
*/
protected JAXBContext createDynamicJAXBContext(AbstractSession session) throws JAXBException, IOException {
final ServiceVersion cachedContextVersion = (ServiceVersion) session.getProperty(SESSION_VERSION_PROPERTY);
final JAXBContext cachedContext = (JAXBContext) session.getProperty(JAXBContext.class.getName());
if (cachedContext != null && cachedContextVersion != null && cachedContextVersion == version) {
return cachedContext;
}
final Map properties = createJAXBProperties(session);
final ClassLoader cl = session.getDatasourcePlatform().getConversionManager().getLoader();
final JAXBContext jaxbContext = DynamicJAXBContextFactory.createContextFromOXM(cl, properties);
session.setProperty(SESSION_VERSION_PROPERTY, version);
session.setProperty(JAXBContext.class.getName(), jaxbContext);
return jaxbContext;
}
/**
* A part of the facade over the JPA API.
* Create an EntityManagerFactory using the given PersistenceUnitInfo and properties.
* @param info
* @param properties
* @return
*/
protected EntityManagerFactoryImpl createEntityManagerFactory(PersistenceUnitInfo info, Map properties) {
PersistenceProvider provider = new PersistenceProvider();
EntityManagerFactory emf = provider.createContainerEntityManagerFactory(info, properties);
return (EntityManagerFactoryImpl) emf;
}
/**
* A part of the facade over the JPA API
* Create an EntityManager from the EntityManagerFactory wrapped by this persistence context
* @param tenantId
* @return
*/
protected EntityManager createEntityManager(String tenantId) {
return getEmf().createEntityManager();
}
/**
* Build the set of properties used to create the JAXBContext based on the EntityManagerFactory that
* this PersistenceContext wraps
* @param session
* @return
* @throws IOException
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
protected Map createJAXBProperties(AbstractSession session) throws IOException {
Map properties = new HashMap(1);
List metadataLocations = new ArrayList();
addDynamicXMLMetadataSources(metadataLocations, session);
String oxmLocation = (String) emf.getProperties().get("eclipselink.jpa-rs.oxm");
if (oxmLocation != null) {
metadataLocations.add(oxmLocation);
}
Object passedOXMLocations = emf.getProperties().get(JAXBContextProperties.OXM_METADATA_SOURCE);
if (passedOXMLocations != null) {
if (passedOXMLocations instanceof Collection) {
metadataLocations.addAll((Collection) passedOXMLocations);
} else {
metadataLocations.add(passedOXMLocations);
}
}
// Add static metadata sources specific to current version
for (MetadataSource metadataSource : getSupportedFeatureSet().getMetadataSources()) {
metadataLocations.add(metadataSource);
}
properties.put(JAXBContextProperties.OXM_METADATA_SOURCE, metadataLocations);
SessionEventListener sessionEventListener = getSupportedFeatureSet().getSessionEventListener(session);
if (sessionEventListener != null) {
properties.put(JAXBContextProperties.SESSION_EVENT_LISTENER, sessionEventListener);
}
// Bug 410095 - JSON_WRAPPER_AS_ARRAY_NAME property doesn't work when jaxb context is created using DynamicJAXBContextFactory
//properties.put(JAXBContextProperties.JSON_WRAPPER_AS_ARRAY_NAME, true);
return properties;
}
/**
* A part of the facade over the JPA API
* Delete the given entity in JPA and commit the changes
*/
public void delete(Map tenantId, String type, Object id) {
EntityManager em = getEmf().createEntityManager(tenantId);
try {
transaction.beginTransaction(em);
Object entity = em.find(getClass(type), id);
if (entity != null) {
em.remove(entity);
}
transaction.commitTransaction(em);
} catch (RollbackException ex) {
throw JPARSException.exceptionOccurred(ex);
} catch (Exception ex) {
transaction.rollbackTransaction(em);
throw JPARSException.exceptionOccurred(ex);
} finally {
em.close();
}
}
/**
* Does exist.
*
* @param tenantId the tenant id
* @param entity the entity
* @return true, if successful
*/
public boolean doesExist(Map tenantId, Object entity) {
DatabaseSession session = JpaHelper.getDatabaseSession(getEmf());
return session.doesObjectExist(entity);
}
/**
* Finalize.
*/
@Override
protected void finalize() throws Throwable {
emf.close();
super.finalize();
}
/**
* A part of the facade over the JPA API
* Find an entity with the given name and id in JPA
* @param entityName
* @param id
* @return
*/
public Object find(String entityName, Object id) {
return find(null, entityName, id);
}
/**
* A part of the facade over the JPA API
* Find an entity with the given name and id in JPA
* @param tenantId
* @param entityName
* @param id
* @return
*/
public Object find(Map tenantId, String entityName, Object id) {
return find(tenantId, entityName, id, null);
}
/**
* A part of the facade over the JPA API
* Find an entity with the given name and id in JPA
* @param tenantId
* @param entityName
* @param id
* @param properties - query hints used on the find
* @return
*/
public Object find(Map tenantId, String entityName, Object id, Map properties) {
EntityManager em = getEmf().createEntityManager(tenantId);
try {
return em.find(getClass(entityName), id, properties);
} finally {
em.close();
}
}
/**
* Update or add attribute.
*
* @param tenantId the tenant id
* @param entityName the entity name
* @param id the id
* @param properties the properties
* @param attribute the attribute
* @param attributeValue the attribute value
* @param partner the partner
* @return the object
*/
public Object updateOrAddAttribute(Map tenantId, String entityName, Object id, Map properties, String attribute, Object attributeValue, String partner) {
EntityManager em = getEmf().createEntityManager(tenantId);
try {
ClassDescriptor descriptor = getServerSession().getClassDescriptor(getClass(entityName));
DatabaseMapping mapping = descriptor.getMappingForAttributeName(attribute);
Object object;
if (mapping == null) {
return null;
} else if (mapping.isObjectReferenceMapping() || mapping.isCollectionMapping()) {
DatabaseMapping partnerMapping = null;
if (partner != null) {
ClassDescriptor referenceDescriptor = mapping.getReferenceDescriptor();
partnerMapping = referenceDescriptor.getMappingForAttributeName(partner);
if (partnerMapping == null) {
return null;
}
}
transaction.beginTransaction(em);
try {
object = em.find(getClass(entityName), id, properties);
if (object == null) {
return null;
}
attributeValue = em.merge(attributeValue);
setMappingValueInObject(object, attributeValue, mapping, partnerMapping);
transaction.commitTransaction(em);
} catch (RollbackException e) {
JPARSLogger.exception(getSessionLog(), "exception_while_updating_attribute", new Object[] { entityName, getName() }, e);
return null;
} catch (Exception e) {
JPARSLogger.exception(getSessionLog(), "exception_while_updating_attribute", new Object[] { entityName, getName() }, e);
transaction.rollbackTransaction(em);
return null;
}
} else {
return null;
}
return object;
} finally {
em.close();
}
}
/**
* Removes the attribute.
*
* @param tenantId the tenant id
* @param entityName the entity name
* @param id the id
* @param attribute the attribute
* @param listItemId
* @param entity
* @param partner the partner
* @return the object
*
*/
@SuppressWarnings({"rawtypes" })
public Object removeAttribute(Map tenantId, String entityName, Object id, String attribute, String listItemId, Object entity, String partner)
{
EntityManager em = getEmf().createEntityManager(tenantId);
String fieldName = null;
try {
Class clazz = getClass(entityName);
ClassDescriptor descriptor = getServerSession().getClassDescriptor(clazz);
DatabaseMapping mapping = descriptor.getMappingForAttributeName(attribute);
if (mapping == null) {
return null;
} else if (mapping.isObjectReferenceMapping() || mapping.isCollectionMapping()) {
DatabaseMapping partnerMapping = null;
Object originalAttributeValue = null;
ClassDescriptor referenceDescriptor = mapping.getReferenceDescriptor();
if (partner != null) {
partnerMapping = referenceDescriptor.getMappingForAttributeName(partner);
if (partnerMapping == null) {
return null;
}
}
Field[] fields;
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) {
fields = AccessController.doPrivileged(new PrivilegedGetDeclaredFields(clazz));
} else {
fields = PrivilegedAccessHelper.getDeclaredFields(clazz);
}
for (Field field : fields) {
fieldName = field.getName();
if (fieldName.equals(attribute)) {
try {
// call clear on this collection
Object attributeValue = getAttribute(entity, attribute);
originalAttributeValue = attributeValue;
if (attributeValue instanceof Collection) {
if (listItemId == null) {
// no collection member specified in request (listItemId=null) remove entire collection
((Collection) attributeValue).clear();
} else {
Object realListItemId = IdHelper.buildId(this, referenceDescriptor.getAlias(), listItemId);
Object member = this.find(referenceDescriptor.getAlias(), realListItemId);
((Collection) attributeValue).remove(member);
}
}
break;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}
transaction.beginTransaction(em);
entity = em.merge(entity);
removeMappingValueFromObject(entity, originalAttributeValue, mapping, partnerMapping);
transaction.commitTransaction(em);
return entity;
}
return null;
} catch (Exception e) {
JPARSLogger.exception(getSessionLog(), "exception_while_removing_attribute", new Object[] { fieldName, entityName, getName() }, e);
transaction.rollbackTransaction(em);
return null;
} finally {
em.close();
}
}
@SuppressWarnings("unchecked")
private Object getAttribute(Object entity, String propertyName) {
try {
BeanInfo info = Introspector.getBeanInfo(entity.getClass(), Object.class);
PropertyDescriptor[] props = info.getPropertyDescriptors();
for (PropertyDescriptor pd : props) {
String name = pd.getName();
if (propertyName.equals(name)) {
Method getter = pd.getReadMethod();
Object value;
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) {
value = AccessController.doPrivileged(new PrivilegedMethodInvoker(getter, entity));
} else {
value = PrivilegedAccessHelper.invokeMethod(getter, entity);
}
return value;
}
}
} catch (IntrospectionException | PrivilegedActionException | IllegalAccessException | InvocationTargetException ex) {
return null;
}
return null;
}
@SuppressWarnings("rawtypes")
protected void removeMappingValueFromObject(Object object, Object attributeValue, DatabaseMapping mapping, DatabaseMapping partner) {
if (mapping.isObjectReferenceMapping()) {
Object currentValue = mapping.getRealAttributeValueFromObject(object, (AbstractSession) getServerSession());
if (currentValue.equals(attributeValue)) {
((ObjectReferenceMapping) mapping).getIndirectionPolicy().setRealAttributeValueInObject(object, null, true);
if (partner != null) {
removeMappingValueFromObject(attributeValue, object, partner, null);
}
}
} else if (mapping.isCollectionMapping()) {
boolean removed = ((Collection) mapping.getRealAttributeValueFromObject(object, (AbstractSession) getServerSession())).remove(attributeValue);
if (removed && partner != null) {
removeMappingValueFromObject(attributeValue, object, partner, null);
}
}
}
/**
* Gets the base uri.
*
* @return the base uri
*/
public URI getBaseURI() {
return baseURI;
}
/**
* Look-up the given entity name in the EntityManagerFactory and return the class
* is describes
* @param entityName
* @return
*/
public Class getClass(String entityName) {
ClassDescriptor descriptor = getDescriptor(entityName);
if (descriptor == null) {
return null;
}
return descriptor.getJavaClass();
}
/**
* Gets the jpa server session.
*
* @return the jpa server session
*/
public DatabaseSession getServerSession() {
// Fix for bug 390786 - JPA-RS: ClassCastException retrieving metadata for Composite Persistence Unit
return JpaHelper.getDatabaseSession(emf);
}
/**
* Gets the client session.
*
* @param em the em
* @return the client session
*/
public AbstractSession getClientSession(EntityManager em) {
UnitOfWork uow = JpaHelper.getEntityManager(em).getUnitOfWork();
return (AbstractSession) uow;
}
/**
* Lookup the descriptor for the given entity name.
* This method will look first in the EntityManagerFactory wrapped by this persistence context
* and return that descriptor. If one does not exist, it search the JAXBContext and return
* a descriptor from there.
* @param entityName
* @return
*/
public ClassDescriptor getDescriptor(String entityName) {
DatabaseSession session = getServerSession();
ClassDescriptor descriptor = session.getDescriptorForAlias(entityName);
if (descriptor == null) {
for (Object ajaxBSession : getJAXBContext().getXMLContext().getSessions()) {
descriptor = ((Session) ajaxBSession).getClassDescriptorForAlias(entityName);
if (descriptor != null) {
break;
}
}
}
return descriptor;
}
/**
* Gets the descriptor for class.
*
* @param clazz the clazz
* @return the descriptor for class
*/
@SuppressWarnings("rawtypes")
public ClassDescriptor getDescriptorForClass(Class clazz) {
DatabaseSession session = getServerSession();
ClassDescriptor descriptor = session.getDescriptor(clazz);
if (descriptor == null) {
return getJAXBDescriptorForClass(clazz);
}
return descriptor;
}
/**
* Gets the jAXB descriptor for class.
*
* @param clazz the clazz
* @return the jAXB descriptor for class
*/
@SuppressWarnings("rawtypes")
public ClassDescriptor getJAXBDescriptorForClass(Class clazz) {
ClassDescriptor descriptor = null;
for (Object ajaxBSession : getJAXBContext().getXMLContext().getSessions()) {
descriptor = ((Session) ajaxBSession).getClassDescriptor(clazz);
if (descriptor != null) {
break;
}
}
return descriptor;
}
/**
* Gets the emf.
*
* @return the emf
*/
public EntityManagerFactory getEmf() {
return emf;
}
/**
* Gets the jAXB context.
*
* @return the jAXB context
*/
public JAXBContext getJAXBContext() {
return jaxbContext;
}
/**
* Gets the name.
*
* @return the name
*/
public String getName() {
return name;
}
public SessionLog getSessionLog() {
return sessionLog;
}
/**
* A part of the facade over the JPA API
* Call jpa merge on the given object and commit
* If the passed object is a list, we will iterate through the
* list and merge each member
* @param tenantId
* @param entity
* @return
*/
@SuppressWarnings("rawtypes")
public Object merge(Map tenantId, Object entity) {
EntityManager em = getEmf().createEntityManager(tenantId);
Object mergedEntity;
try {
transaction.beginTransaction(em);
if (entity instanceof List) {
List mergeList = new ArrayList();
for (Object o : (List) entity) {
mergeList.add(em.merge(o));
}
mergedEntity = mergeList;
} else {
mergedEntity = em.merge(entity);
}
transaction.commitTransaction(em);
return mergedEntity;
} catch (RollbackException ex) {
throw JPARSException.exceptionOccurred(ex);
} catch (Exception ex) {
transaction.rollbackTransaction(em);
throw JPARSException.exceptionOccurred(ex);
} finally {
em.close();
}
}
/**
* A convenience method to create a new dynamic entity of the given type
* @param type
* @return
*/
public DynamicEntity newEntity(String type) {
return newEntity(null, type);
}
/**
* A convenience method to create a new dynamic entity of the given type
* @param tenantId
* @param type
* @return
*/
public DynamicEntity newEntity(Map tenantId, String type) {
JPADynamicHelper helper = new JPADynamicHelper(getEmf());
DynamicEntity entity;
try {
entity = helper.newDynamicEntity(type);
} catch (IllegalArgumentException e) {
ClassDescriptor descriptor = getDescriptor(type);
if (descriptor != null) {
DynamicType jaxbType = (DynamicType) descriptor.getProperty(DynamicType.DESCRIPTOR_PROPERTY);
if (jaxbType != null) {
return jaxbType.newDynamicEntity();
}
}
JPARSLogger.exception(getSessionLog(), "exception_thrown_while_creating_dynamic_entity", new Object[] { type }, e);
throw e;
}
return entity;
}
/**
* Query execute update.
*
* @param tenantId the tenant id
* @param name the name
* @param parameters the parameters
* @param hints the hints
* @return the int
*/
public int queryExecuteUpdate(Map tenantId, String name, Map parameters, Map hints) {
EntityManager em = getEmf().createEntityManager(tenantId);
try {
Query query = constructQuery(em, name, parameters, hints);
transaction.beginTransaction(em);
int result = query.executeUpdate();
transaction.commitTransaction(em);
return result;
} catch (RollbackException ex) {
throw JPARSException.exceptionOccurred(ex);
} catch (Exception ex) {
transaction.rollbackTransaction(em);
throw JPARSException.exceptionOccurred(ex);
} finally {
em.close();
}
}
/**
* Query multiple results.
*
* @param tenantId the tenant id
* @param name the name
* @param parameters the parameters
* @param hints the hints
* @return the list
*/
@SuppressWarnings("rawtypes")
public List queryMultipleResults(Map tenantId, String name, Map parameters, Map hints) {
EntityManager em = getEmf().createEntityManager(tenantId);
try {
Query query = constructQuery(em, name, parameters, hints);
return query.getResultList();
} finally {
em.close();
}
}
@SuppressWarnings("rawtypes")
protected Query constructQuery(EntityManager em, String name, Map parameters, Map hints) {
Query query = em.createNamedQuery(name);
DatabaseQuery dbQuery = ((EJBQueryImpl) query).getDatabaseQuery();
if (parameters != null) {
Iterator i = parameters.entrySet().iterator();
while (i.hasNext()) {
Map.Entry entry = (Map.Entry) i.next();
String key = (String) entry.getKey();
Class parameterClass = null;
int index = dbQuery.getArguments().indexOf(key);
if (index >= 0) {
parameterClass = dbQuery.getArgumentTypes().get(index);
}
Object parameter = entry.getValue();
if (parameterClass != null) {
parameter = ConversionManager.getDefaultManager().convertObject(parameter, parameterClass);
}
query.setParameter(key, parameter);
}
}
if (hints != null) {
for (Map.Entry entry : hints.entrySet()) {
query.setHint(entry.getKey(), entry.getValue());
}
}
return query;
}
/**
* Builds the query.
*
* @param tenantId the tenant id
* @param name the name
* @param parameters the parameters
* @param hints the hints
* @return the query
*/
@SuppressWarnings("rawtypes")
public Query buildQuery(Map tenantId, String name, Map parameters, Map hints) {
EntityManager em = getEmf().createEntityManager(tenantId);
Query query = em.createNamedQuery(name);
DatabaseQuery dbQuery = ((EJBQueryImpl) query).getDatabaseQuery();
if (parameters != null) {
Iterator i = parameters.entrySet().iterator();
while (i.hasNext()) {
Map.Entry entry = (Map.Entry) i.next();
String key = (String) entry.getKey();
Class parameterClass = null;
int index = dbQuery.getArguments().indexOf(key);
if (index >= 0) {
parameterClass = dbQuery.getArgumentTypes().get(index);
}
Object parameter = entry.getValue();
if (parameterClass != null) {
parameter = ConversionManager.getDefaultManager().convertObject(parameter, parameterClass);
}
query.setParameter(key, parameter);
}
}
if (hints != null) {
for (Map.Entry entry : hints.entrySet()) {
query.setHint(entry.getKey(), entry.getValue());
}
}
return query;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
protected void setMappingValueInObject(Object object, Object attributeValue, DatabaseMapping mapping, DatabaseMapping partner) {
if (mapping.isObjectReferenceMapping()) {
((ObjectReferenceMapping) mapping).getIndirectionPolicy().setRealAttributeValueInObject(object, attributeValue, true);
if (partner != null) {
setMappingValueInObject(attributeValue, object, partner, null);
}
} else if (mapping.isCollectionMapping()) {
((Collection) mapping.getAttributeValueFromObject(object)).add(attributeValue);
if (partner != null) {
setMappingValueInObject(attributeValue, object, partner, null);
}
}
}
/**
* Stop the current application instance
*/
public void stop() {
if (emf != null && emf.isOpen()) {
emf.close();
}
this.emf = null;
this.jaxbContext = null;
}
/**
* To string.
*
* @return the string
*/
@Override
public String toString() {
return "PersistenceContext(name:" + getName() + ", version:" + getVersion() + ", identityHashCode:" + System.identityHashCode(this) + ")";
}
/**
* Unmarshal entity.
*
* @param type the type of the entity to unmarshal
* @param acceptedMediaType the accepted media type
* @param in the input stream to unmarshal
* @return the object
* @throws JAXBException the JAXB exception
*/
public Object unmarshalEntity(String type, MediaType acceptedMediaType, InputStream in) throws JAXBException {
if (JPARSLogger.isLoggableFinest(getSessionLog())) {
in = in.markSupported() ? in : new BufferedInputStream(in);
// TODO: Make readlimit configurable. Some http servers allow http post size to be unlimited.
// If this is the case and if an application is sending huge post requests while jpars log
// level configured to finest, this readlimit might not be sufficient.
in.mark(52428800); // (~50MB)
JPARSLogger.entering(getSessionLog(), CLASS_NAME, "unmarshalEntity", in);
}
Object unmarshalled = unmarshal(getClass(type), acceptedMediaType, in);
JPARSLogger.exiting(getSessionLog(), CLASS_NAME, "unmarshalEntity", new Object[] { unmarshalled.getClass().getName(), unmarshalled });
return unmarshalled;
}
/**
* Unmarshal.
*
* @param type the type of the entity to unmarshal
* @param acceptedMediaType the accepted media type
* @param in the input stream to unmarshal
* @return the object
* @throws JAXBException the JAXB exception
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public Object unmarshal(Class type, MediaType acceptedMediaType, InputStream in) throws JAXBException {
Unmarshaller unmarshaller = getJAXBContext().createUnmarshaller();
unmarshaller.setProperty(UnmarshallerProperties.JSON_INCLUDE_ROOT, Boolean.FALSE);
unmarshaller.setProperty(UnmarshallerProperties.MEDIA_TYPE, acceptedMediaType.toString());
unmarshaller.setAdapter(new LinkAdapter(getBaseURI().toString(), this));
unmarshaller.setEventHandler(new ValidationEventHandler() {
@Override
/*
* ReferenceAdaptor unmarshal throws exception if the object referred by a link
* doesn't exist, and this handler is required to interrupt the unmarshal
* operation under this condition.
* (non-Javadoc) @see jakarta.xml.bind.ValidationEventHandler#handleEvent(jakarta.xml.bind.ValidationEvent)
*
*/
public boolean handleEvent(ValidationEvent event) {
if (event.getSeverity() != ValidationEvent.WARNING) {
// ValidationEventLocator eventLocator = event.getLocator();
// Throwable throwable = event.getLinkedException();
// nothing is really useful to check for us in eventLocator
// and linked exception, just return false;
return false;
}
return true;
}
});
for (XmlAdapter adapter : getAdapters()) {
unmarshaller.setAdapter(adapter);
}
if (acceptedMediaType == MediaType.APPLICATION_JSON_TYPE) {
// Part of the fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=394059
// This issue happens when request has objects derived from an abstract class.
// JSON_INCLUDE_ROOT is set to false for JPA-RS. This means JSON requests won't have root tag.
// The unmarshal method needs to be called with type, so that moxy can unmarshal the message based on type.
// For xml, root tag is always set, unmarshaller must use root of the message for unmarshalling and type should
// not be passed to unmarshal for xml type requests.
JAXBElement element = unmarshaller.unmarshal(new StreamSource(in), type);
if (element.getValue() instanceof List) {
for (Object object : (List) element.getValue()) {
wrap(object);
}
return element.getValue();
} else {
wrap(element.getValue());
}
return element.getValue();
}
Object domainObject = unmarshaller.unmarshal(new StreamSource(in));
if (domainObject instanceof List) {
for (Object object : (List) domainObject) {
wrap(object);
}
return domainObject;
} else {
wrap(domainObject);
}
return domainObject;
}
/**
* Make adjustments to an unmarshalled entity based on what is found in the weaved fields
*
* @param entity
* @return
*/
protected Object wrap(Object entity) {
if ((entity != null) && (PersistenceWeavedRest.class.isAssignableFrom(entity.getClass()))) {
if (!doesExist(null, entity)) {
return entity;
}
ClassDescriptor descriptor = getJAXBDescriptorForClass(entity.getClass());
if (entity instanceof FetchGroupTracker) {
FetchGroup fetchGroup = new FetchGroup();
for (DatabaseMapping mapping : descriptor.getMappings()) {
if (!(mapping instanceof XMLInverseReferenceMapping)) {
fetchGroup.addAttribute(mapping.getAttributeName());
}
}
(new FetchGroupManager()).setObjectFetchGroup(entity, fetchGroup, null);
((FetchGroupTracker) entity)._persistence_setSession(JpaHelper.getDatabaseSession(getEmf()));
} else if (descriptor.hasRelationships()) {
for (DatabaseMapping mapping : descriptor.getMappings()) {
if (mapping instanceof XMLInverseReferenceMapping) {
// we require Fetch groups to handle relationships
JPARSLogger.error(getSessionLog(), "weaving_required_for_relationships", new Object[] {});
throw JPARSException.invalidConfiguration();
}
}
}
}
return entity;
}
/**
* Marshall an entity to either JSON or XML
* Calling this method, will treat relationships as unfetched in the XML/JSON and marshall them as links
* rather than attempting to marshall the data in those relationships
* @param object
* @param mediaType
* @param output
* @throws JAXBException
*/
public void marshallEntity(Object object, MediaType mediaType, OutputStream output) throws JAXBException {
JPARSLogger.entering(getSessionLog(), CLASS_NAME, "marshallEntity", new Object[] { object, mediaType });
marshall(object, mediaType, output, true);
JPARSLogger.exiting(getSessionLog(), CLASS_NAME, "marshallEntity", this, object, mediaType);
}
/**
* Marshall an entity to either JSON or XML.
*
* @param object the object to marshal.
* @param filter the filter (included/excluded fields) to use.
* @param mediaType the media type (XML/JSON).
* @param output the result.
* @throws JAXBException
*/
public void marshallEntity(Object object, FieldsFilter filter, MediaType mediaType, OutputStream output) throws JAXBException {
JPARSLogger.entering(getSessionLog(), CLASS_NAME, "marshallEntity", new Object[] { object, filter, mediaType });
marshall(object, mediaType, output, true, filter);
JPARSLogger.exiting(getSessionLog(), CLASS_NAME, "marshallEntity", this, object, mediaType);
}
/**
* Marshall an entity to either JSON or XML.
*
* @param object
* @param mediaType
* @param output
* @param sendRelationships if this is set to true, relationships will be sent as links instead of sending.
* the actual objects in the relationships
* @throws JAXBException
*/
public void marshall(Object object, MediaType mediaType, OutputStream output, boolean sendRelationships) throws JAXBException {
marshall(object, mediaType, output, sendRelationships, null);
}
/**
* Marshall an entity to either JSON or XML.
*
* @param object the object to marshal.
* @param mediaType the media type (XML/JSON).
* @param output the result.
* @param sendRelationships if this is set to true, relationships will be sent as links instead of sending
* the actual objects in the relationships.
* @param fieldsFilter Specifies fields to include/exclude from the response.
* @throws JAXBException
*/
public void marshall(final Object object, final MediaType mediaType, final OutputStream output, boolean sendRelationships, final FieldsFilter fieldsFilter) throws JAXBException {
if (version.compareTo(ServiceVersion.VERSION_2_0) < 0 && sendRelationships) {
preMarshallEntity(object);
}
final Marshaller marshaller = getJAXBContext().createMarshaller();
marshaller.setProperty(MarshallerProperties.MEDIA_TYPE, mediaType.toString());
marshaller.setProperty(MarshallerProperties.JSON_INCLUDE_ROOT, false);
marshaller.setProperty(MarshallerProperties.JSON_REDUCE_ANY_ARRAYS, true);
marshaller.setProperty(MarshallerProperties.JSON_WRAPPER_AS_ARRAY_NAME, true);
marshaller.setAdapter(new LinkAdapter(getBaseURI().toString(), this));
marshaller.setAdapter(new RelationshipLinkAdapter(getBaseURI().toString(), this));
for (XmlAdapter adapter : getAdapters()) {
marshaller.setAdapter(adapter);
}
// v2.0 and higher
if (version.compareTo(ServiceVersion.VERSION_2_0) >= 0) {
// Create proxies for collections
getCollectionWrapperBuilder().wrapCollections(object);
// Build object graph + fields filtering
final ObjectGraphBuilder objectGraphBuilder = new ObjectGraphBuilder(this);
final ObjectGraph objectGraph = objectGraphBuilder.createObjectGraph(object, fieldsFilter);
if (objectGraph != null) {
marshaller.setProperty(MarshallerProperties.OBJECT_GRAPH, objectGraph);
}
}
if (mediaType == MediaType.APPLICATION_XML_TYPE && object instanceof List) {
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
XMLOutputFactory outputFactory = XMLOutputFactory.newFactory();
XMLStreamWriter writer;
try {
writer = outputFactory.createXMLStreamWriter(output);
writer.writeStartDocument();
writer.writeStartElement(ReservedWords.JPARS_LIST_GROUPING_NAME);
for (Object o : (List) object) {
marshaller.marshal(o, writer);
}
writer.writeEndDocument();
writer.flush();
postMarshallEntity(object);
} catch (Exception ex) {
throw JPARSException.exceptionOccurred(ex);
}
} else {
marshaller.marshal(object, output);
if (version.compareTo(ServiceVersion.VERSION_2_0) < 0) {
postMarshallEntity(object);
}
}
}
/**
* Process an entity and add any additional data that needs to be added prior to marshalling
* This method will both single entities and lists of entities
* @param object
*/
@SuppressWarnings("rawtypes")
protected void preMarshallEntity(Object object) {
if (object instanceof List) {
for (Object o : ((List) object)) {
preMarshallIndividualEntity(o);
}
} else {
preMarshallIndividualEntity(object);
}
}
/**
* Add any data required prior to marshalling an entity to XML or JSON
* In general, this will only affect fields that have been weaved into the object
* @param entity
*/
@SuppressWarnings("rawtypes")
protected void preMarshallIndividualEntity(Object entity) {
if (entity instanceof ReportQueryResultListItem) {
ReportQueryResultListItem item = (ReportQueryResultListItem) entity;
for (JAXBElement field : item.getFields()) {
// one or more fields in the MultiResultQueryListItem might be a domain object,
// so, we need to set the relationshipInfo for those domain objects.
setRelationshipInfo(field.getValue());
}
} else if (entity instanceof SingleResultQueryList) {
SingleResultQueryList item = (SingleResultQueryList) entity;
for (JAXBElement field : item.getFields()) {
// one or more fields in the SingleResultQueryList might be a domain object,
// so, we need to set the relationshipInfo for those domain objects.
setRelationshipInfo(field.getValue());
}
} else if (entity instanceof ReportQueryResultList) {
ReportQueryResultList list = (ReportQueryResultList) entity;
for (ReportQueryResultListItem item : list.getItems()) {
for (JAXBElement field : item.getFields()) {
// one or more fields in the MultiResultQueryList might be a domain object,
// so, we need to set the relationshipInfo for those domain objects.
setRelationshipInfo(field.getValue());
}
}
} else if (entity instanceof ReadAllQueryResultCollection) {
ReadAllQueryResultCollection list = (ReadAllQueryResultCollection) entity;
List items = list.getItems();
if ((items != null) && (!items.isEmpty())) {
for (Object item : items) {
setRelationshipInfo(item);
}
}
} else if (entity instanceof ReportQueryResultCollection) {
ReportQueryResultCollection list = (ReportQueryResultCollection) entity;
List items = list.getItems();
if ((items != null) && (!items.isEmpty())) {
for (ReportQueryResultListItem item : items) {
setRelationshipInfo(item);
}
}
} else {
setRelationshipInfo(entity);
}
}
private void setRelationshipInfo(Object entity) {
if ((entity != null) && (entity instanceof PersistenceWeavedRest)) {
ClassDescriptor descriptor = getServerSession().getClassDescriptor(entity.getClass());
if (descriptor != null) {
((PersistenceWeavedRest) entity)._persistence_setRelationships(new ArrayList());
for (DatabaseMapping mapping : descriptor.getMappings()) {
if (mapping.isForeignReferenceMapping()) {
ForeignReferenceMapping frMapping = (ForeignReferenceMapping) mapping;
RelationshipInfo info = new RelationshipInfo();
info.setAttributeName(frMapping.getAttributeName());
info.setOwningEntity(entity);
info.setOwningEntityAlias(descriptor.getAlias());
info.setPersistencePrimaryKey(descriptor.getObjectBuilder().extractPrimaryKeyFromObject(entity, (AbstractSession) getServerSession()));
((PersistenceWeavedRest) entity)._persistence_getRelationships().add(info);
} else if (mapping.isEISMapping()) {
if (mapping instanceof EISCompositeCollectionMapping) {
EISCompositeCollectionMapping eisMapping = (EISCompositeCollectionMapping) mapping;
RelationshipInfo info = new RelationshipInfo();
info.setAttributeName(eisMapping.getAttributeName());
info.setOwningEntity(entity);
info.setOwningEntityAlias(descriptor.getAlias());
info.setPersistencePrimaryKey(descriptor.getObjectBuilder().extractPrimaryKeyFromObject(entity, (AbstractSession) getServerSession()));
((PersistenceWeavedRest) entity)._persistence_getRelationships().add(info);
}
}
}
}
}
}
@SuppressWarnings("rawtypes")
protected void postMarshallEntity(Object object) {
if (object instanceof List) {
for (Object entity : ((List) object)) {
if (entity instanceof PersistenceWeavedRest) {
((PersistenceWeavedRest) entity)._persistence_setRelationships(new ArrayList());
}
}
} else if (object instanceof PersistenceWeavedRest) {
((PersistenceWeavedRest) object)._persistence_setRelationships(new ArrayList());
}
}
@SuppressWarnings({ "rawtypes", "unchecked" })
protected List> getAdapters() throws JPARSException {
if (adapters != null) {
return adapters;
}
adapters = new ArrayList>();
try {
final ClassLoader cl = getServerSession().getDatasourcePlatform().getConversionManager().getLoader();
for (ClassDescriptor desc : this.getServerSession().getDescriptors().values()) {
if (version.compareTo(ServiceVersion.VERSION_2_0) >= 0) {
// Version is 2.0 or higher
// Collection adapter
final String collectionAdapterName = RestCollectionAdapterClassWriter.getClassName(desc.getJavaClass().getName());
final Class collectionAdaptorClass = Class.forName(collectionAdapterName, true, cl);
final Class[] argTypes = {PersistenceContext.class};
final Constructor collectionAdaptorConstructor = collectionAdaptorClass.getDeclaredConstructor(argTypes);
final Object[] args = new Object[]{this};
adapters.add((XmlAdapter) collectionAdaptorConstructor.newInstance(args));
// Reference adapter
final String refAdapterName = RestReferenceAdapterV2ClassWriter.getClassName(desc.getJavaClass().getName());
final Class refAdaptorClass = Class.forName(refAdapterName, true, cl);
final Class[] refAdapterTypes = {PersistenceContext.class};
final Constructor refAdaptorConstructor = refAdaptorClass.getDeclaredConstructor(refAdapterTypes);
final Object[] refAdapterArgs = new Object[]{this};
adapters.add((XmlAdapter) refAdaptorConstructor.newInstance(refAdapterArgs));
} else {
// Version is 1.0 or below
// avoid embeddables
if (!desc.isAggregateCollectionDescriptor() && !desc.isAggregateDescriptor()) {
Class clz = desc.getJavaClass();
String referenceAdapterName = RestAdapterClassWriter.constructClassNameForReferenceAdapter(clz.getName());
Class referenceAdaptorClass = Class.forName(referenceAdapterName, true, cl);
Class[] argTypes1 = {String.class, PersistenceContext.class};
Constructor referenceAdaptorConstructor = referenceAdaptorClass.getDeclaredConstructor(argTypes1);
Object[] args1 = new Object[]{getBaseURI().toString(), this};
adapters.add((XmlAdapter) referenceAdaptorConstructor.newInstance(args1));
}
}
}
} catch (RuntimeException | ReflectiveOperationException ex) {
ex.printStackTrace();
throw JPARSException.exceptionOccurred(ex);
}
return adapters;
}
private boolean getWeavingProperty() {
// Initialize the properties with their defaults first
boolean restWeavingEnabled = true;
boolean fetchGroupWeavingEnabled = true;
boolean weavingEnabled = true;
Map properties = this.emf.getProperties();
for (Map.Entry entry : properties.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
if (key.equals(PersistenceUnitProperties.WEAVING)) {
if (!("true".equalsIgnoreCase((String) value)) && !("static".equalsIgnoreCase((String) value))) {
weavingEnabled = false;
}
}
if (key.equals(PersistenceUnitProperties.WEAVING_REST)) {
if (!("true".equalsIgnoreCase((String) value))) {
restWeavingEnabled = false;
}
}
if (key.equals(PersistenceUnitProperties.WEAVING_FETCHGROUPS)) {
if (!("true".equalsIgnoreCase((String) value))) {
fetchGroupWeavingEnabled = false;
}
}
}
return (weavingEnabled && restWeavingEnabled && fetchGroupWeavingEnabled);
}
/**
* Gets the supported feature set.
*
* @return the supported feature set.
*/
public FeatureSet getSupportedFeatureSet() {
return version.getFeatureSet();
}
/**
* Finds out is given query pageable or not.
*
* @param queryName named query to check.
* @return true if pageable, false if not.
*/
public boolean isQueryPageable(String queryName) {
return getPageableQueries().get(queryName) != null;
}
/**
* Gets REST pageable query details by query name.
*
* @param queryName named query name.
* @return RestPageableQuery or null if query couldn't be found.
*/
public RestPageableQuery getPageableQuery(String queryName) {
return getPageableQueries().get(queryName);
}
/**
* Sets the version.
*
* @param version the new version.
*/
public void setVersion(String version) {
this.version = ServiceVersion.fromCode(version);
}
/**
* Sets the base uri.
*
* @param baseURI the new base uri
*/
public void setBaseURI(URI baseURI) {
this.baseURI = baseURI;
}
/**
* Getter for pageableQueries property with lazy initialization.
*
* @return The initialized pageableQueries property.
*/
private Map getPageableQueries() {
// Lazy initialization
if (pageableQueries == null) {
initPageableQueries();
}
return pageableQueries;
}
/**
* Initializes pageableQueries map by reading RestPageableQueries entity annotations.
*/
private void initPageableQueries() {
pageableQueries = new HashMap();
// Iterate on all entity classes
for (Class clazz : getServerSession().getProject().getDescriptors().keySet()) {
if (clazz.isAnnotationPresent(RestPageableQueries.class)) {
final RestPageableQueries restPageableQueries = clazz.getAnnotation(RestPageableQueries.class);
// Process each RestPageableQuery annotation in the list
for (RestPageableQuery restPageableQuery : restPageableQueries.value()) {
pageableQueries.put(restPageableQuery.queryName(), restPageableQuery);
}
}
}
}
/**
* Getter for the collectionWrapperBuilder property with lazy initialization.
*
* @return the collectionWrapperBuilder.
*/
public CollectionWrapperBuilder getCollectionWrapperBuilder() {
if (collectionWrapperBuilder == null) {
collectionWrapperBuilder = new CollectionWrapperBuilder(this);
}
return collectionWrapperBuilder;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((name == null) ? 0 : name.hashCode());
result = prime * result + ((version == null) ? 0 : version.hashCode());
return result;
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (other == null) {
return false;
}
if (getClass() != other.getClass()) {
return false;
}
PersistenceContext otherContext = (PersistenceContext) other;
if (name == null) {
if (otherContext.name != null) {
return false;
}
} else if (!name.equals(otherContext.name)) {
return false;
}
if (version == null) {
if (otherContext.version != null) {
return false;
}
} else if (!version.equals(otherContext.version)) {
return false;
}
return true;
}
}
