@Override
public Object bind(
RootParamNode rootParamNode,
String name,
Class clazz,
java.lang.reflect.Type type,
Annotation[] annotations) {
// TODO need to be more generic in order to work with JPASupport
if (clazz.isAnnotationPresent(Entity.class)) {
ParamNode paramNode = rootParamNode.getChild(name, true);
String[] keyNames = new JPAModelLoader(clazz).keyNames();
ParamNode[] ids = new ParamNode[keyNames.length];
// Collect the matching ids
int i = 0;
for (String keyName : keyNames) {
ids[i++] = paramNode.getChild(keyName, true);
}
if (ids != null && ids.length > 0) {
try {
EntityManager em = JPABase.getJPAConfig(clazz).getJPAContext().em();
StringBuilder q =
new StringBuilder().append("from ").append(clazz.getName()).append(" o where");
int keyIdx = 1;
for (String keyName : keyNames) {
q.append(" o.").append(keyName).append(" = ?").append(keyIdx++).append(" and ");
}
if (q.length() > 4) {
q = q.delete(q.length() - 4, q.length());
}
Query query = em.createQuery(q.toString());
// The primary key can be a composite.
Class[] pk = new JPAModelLoader(clazz).keyTypes();
int j = 0;
for (ParamNode id : ids) {
if (id.getValues() == null
|| id.getValues().length == 0
|| id.getFirstValue(null) == null
|| id.getFirstValue(null).trim().length() <= 0) {
// We have no ids, it is a new entity
return GenericModel.create(rootParamNode, name, clazz, annotations);
}
query.setParameter(
j + 1,
Binder.directBind(
id.getOriginalKey(), annotations, id.getValues()[0], pk[j++], null));
}
Object o = query.getSingleResult();
return GenericModel.edit(rootParamNode, name, o, annotations);
} catch (NoResultException e) {
// ok
} catch (Exception e) {
throw new UnexpectedException(e);
}
}
return GenericModel.create(rootParamNode, name, clazz, annotations);
}
return null;
}
/**
* Gets all the annotation info for a particular class and puts it in our annotation info cache.
*
* @param c
* @return
*/
public AnnotationInfo putAnnotationInfo(Class c) {
{
Entity entity = (Entity) c.getAnnotation(Entity.class);
if (entity == null) {
throw new PersistenceException("Class not marked as an @Entity: " + c.getName());
}
}
AnnotationInfo ai = new AnnotationInfo();
ai.setClassAnnotations(c.getAnnotations());
ai.setMainClass(c);
Class superClass = c;
Class rootClass = null;
while ((superClass = superClass.getSuperclass()) != null) {
MappedSuperclass mappedSuperclass =
(MappedSuperclass) superClass.getAnnotation(MappedSuperclass.class);
Entity entity = (Entity) superClass.getAnnotation(Entity.class);
Inheritance inheritance = (Inheritance) superClass.getAnnotation(Inheritance.class);
if (mappedSuperclass != null || entity != null) {
putProperties(ai, superClass);
putMethods(ai, superClass);
if (entity != null) {
rootClass = superClass;
}
putEntityListeners(ai, superClass);
}
}
if (rootClass != null) {
ai.setRootClass(rootClass);
DiscriminatorValue dv = (DiscriminatorValue) c.getAnnotation(DiscriminatorValue.class);
String discriminatorValue;
if (dv != null) {
discriminatorValue = dv.value();
if (discriminatorValue == null) {
throw new PersistenceException(
"You must specify a value= for @DiscriminatorValue on " + c.getName());
}
} else {
discriminatorValue = c.getSimpleName();
}
ai.setDiscriminatorValue(discriminatorValue);
discriminatorMap.put(discriminatorValue, ai);
} else {
ai.setRootClass(c);
}
putTableDeclaration(ai, c);
putProperties(ai, c);
putMethods(ai, c);
if (ai.getIdMethod() == null) {
throw new PersistenceException("No ID method specified for: " + c.getName());
}
putEntityListeners(ai, c);
getAnnotationMap().put(c.getName(), ai);
return ai;
}
/**
* This strips the cglib class name out of the enhanced classes.
*
* @param c
* @return
*/
public static Class stripEnhancerClass(Class c) {
String className = c.getName();
className = stripEnhancerClass(className);
if (className.equals(c.getName())) {
// no change, did this to fix groovy issue
return c;
} else {
c = getClass(className);
}
return c;
}
@Override
public void complete() {
AmberPersistenceUnit persistenceUnit = _sourceType.getPersistenceUnit();
Class targetClass = getTargetClass();
if (targetClass == null || void.class.equals(targetClass))
throw error(
_field,
L.l(
"Can't determine targetEntity for {0}. @OneToMany properties must target @Entity beans.",
_fieldName));
AmberType targetType = persistenceUnit.createType(targetClass);
if (targetType == null) {
throw error(
_field,
L.l(
"targetClass '{0}' is not a known element collection class for {1}. The targetClass of a @ElementCollection must be a basic class.",
targetClass.getName(), _fieldName));
}
/*
if (_orderBy != null)
calculateOrderBy(_orderBy);
*/
addCollection(targetType);
}
public AnnotationInfo getAnnotationInfo(Class c) {
c = stripEnhancerClass(c);
AnnotationInfo ai = getAnnotationInfo(c.getName());
if (ai == null) {
ai = putAnnotationInfo(c);
}
return ai;
}
private void putTableDeclaration(AnnotationInfo ai, Class<?> c) {
Table table = c.getAnnotation(Table.class);
if (table != null) {
if (table.name() == null)
throw new PersistenceException("You must specify a name= for @Table on " + c.getName());
ai.setDomainName(table.name());
}
}
public synchronized int removeAll(Class entityClass) {
int affectedResult = 0;
final EntityManager em = getEntityManager();
try {
em.getTransaction().begin();
affectedResult = em.createQuery("DELETE FROM " + entityClass.getName()).executeUpdate();
em.getTransaction().commit();
} finally {
if (em.getTransaction().isActive()) em.getTransaction().rollback();
em.close();
}
return affectedResult;
}
private Object makeCompositeKey(Model model) throws Exception {
initProperties();
Class<?> idClass = getCompositeKeyClass();
Object id = idClass.newInstance();
PropertyDescriptor[] idProperties = PropertyUtils.getPropertyDescriptors(idClass);
if (idProperties == null || idProperties.length == 0)
throw new UnexpectedException("Composite id has no properties: " + idClass.getName());
for (PropertyDescriptor idProperty : idProperties) {
// do we have a field for this?
String idPropertyName = idProperty.getName();
// skip the "class" property...
if (idPropertyName.equals("class")) continue;
Model.Property modelProperty = this.properties.get(idPropertyName);
if (modelProperty == null)
throw new UnexpectedException(
"Composite id property missing: "
+ clazz.getName()
+ "."
+ idPropertyName
+ " (defined in IdClass "
+ idClass.getName()
+ ")");
// sanity check
Object value = modelProperty.field.get(model);
if (modelProperty.isMultiple)
throw new UnexpectedException(
"Composite id property cannot be multiple: "
+ clazz.getName()
+ "."
+ idPropertyName);
// now is this property a relation? if yes then we must use its ID in the key (as per specs)
if (modelProperty.isRelation) {
// get its id
if (!Model.class.isAssignableFrom(modelProperty.type))
throw new UnexpectedException(
"Composite id property entity has to be a subclass of Model: "
+ clazz.getName()
+ "."
+ idPropertyName);
// we already checked that cast above
@SuppressWarnings("unchecked")
Model.Factory factory =
Model.Manager.factoryFor((Class<? extends Model>) modelProperty.type);
if (factory == null)
throw new UnexpectedException(
"Failed to find factory for Composite id property entity: "
+ clazz.getName()
+ "."
+ idPropertyName);
// we already checked that cast above
if (value != null) value = factory.keyValue((Model) value);
}
// now affect the composite id with this id
PropertyUtils.setSimpleProperty(id, idPropertyName, value);
}
return id;
}
public synchronized <T> List<T> loadAll(Class<T> entityClass, String orderBy) {
final EntityManager em = getEntityManager();
try {
final TypedQuery<T> query =
em.createQuery(
"SELECT c FROM "
+ entityClass.getName()
+ " c "
+ ((orderBy == null) ? "" : " ORDER BY " + orderBy),
entityClass);
return query.getResultList();
} finally {
em.close();
}
}
public Long count(List<String> searchFields, String keywords, String where) {
String q = "select count(*) from " + clazz.getName() + " e";
if (keywords != null && !keywords.equals("")) {
String searchQuery = getSearchQuery(searchFields);
if (!searchQuery.equals("")) {
q += " where (" + searchQuery + ")";
}
q += (where != null ? " and " + where : "");
} else {
q += (where != null ? " where " + where : "");
}
Query query = getJPAContext().em().createQuery(q);
if (keywords != null && !keywords.equals("") && q.indexOf("?1") != -1) {
query.setParameter(1, "%" + keywords.toLowerCase() + "%");
}
return Long.decode(query.getSingleResult().toString());
}
@SuppressWarnings("unchecked")
public List<Model> fetch(
int offset,
int size,
String orderBy,
String order,
List<String> searchFields,
String keywords,
String where) {
String q = "from " + clazz.getName();
if (keywords != null && !keywords.equals("")) {
String searchQuery = getSearchQuery(searchFields);
if (!searchQuery.equals("")) {
q += " where (" + searchQuery + ")";
}
q += (where != null ? " and " + where : "");
} else {
q += (where != null ? " where " + where : "");
}
if (orderBy == null && order == null) {
orderBy = "id";
order = "ASC";
}
if (orderBy == null && order != null) {
orderBy = "id";
}
if (order == null || (!order.equals("ASC") && !order.equals("DESC"))) {
order = "ASC";
}
q += " order by " + orderBy + " " + order;
Query query = getJPAContext().em().createQuery(q);
if (keywords != null && !keywords.equals("") && q.indexOf("?1") != -1) {
query.setParameter(1, "%" + keywords.toLowerCase() + "%");
}
query.setFirstResult(offset);
query.setMaxResults(size);
return query.getResultList();
}
public void deleteAll() {
getJPAContext().em().createQuery("delete from " + clazz.getName()).executeUpdate();
}
@Override
public void onApplicationStart() {
// must check and configure JPA for each DBConfig
for (DBConfig dbConfig : DB.getDBConfigs()) {
// check and enable JPA on this config
// is JPA already configured?
String configName = dbConfig.getDBConfigName();
if (JPA.getJPAConfig(configName, true) == null) {
// must configure it
// resolve prefix for hibernate config..
// should be nothing for default, and db_<name> for others
String propPrefix = "";
if (!DBConfig.defaultDbConfigName.equalsIgnoreCase(configName)) {
propPrefix = "db_" + configName + ".";
}
List<Class> classes = findEntityClassesForThisConfig(configName, propPrefix);
if (classes == null) continue;
// we're ready to configure this instance of JPA
final String hibernateDataSource =
Play.configuration.getProperty(propPrefix + "hibernate.connection.datasource");
if (StringUtils.isEmpty(hibernateDataSource) && dbConfig == null) {
throw new JPAException(
"Cannot start a JPA manager without a properly configured database"
+ getConfigInfoString(configName),
new NullPointerException("No datasource configured"));
}
Ejb3Configuration cfg = new Ejb3Configuration();
if (dbConfig.getDatasource() != null) {
cfg.setDataSource(dbConfig.getDatasource());
}
if (!Play.configuration
.getProperty(propPrefix + "jpa.ddl", Play.mode.isDev() ? "update" : "none")
.equals("none")) {
cfg.setProperty(
"hibernate.hbm2ddl.auto",
Play.configuration.getProperty(propPrefix + "jpa.ddl", "update"));
}
String driver = null;
if (StringUtils.isEmpty(propPrefix)) {
driver = Play.configuration.getProperty("db.driver");
} else {
driver = Play.configuration.getProperty(propPrefix + "driver");
}
cfg.setProperty("hibernate.dialect", getDefaultDialect(propPrefix, driver));
cfg.setProperty("javax.persistence.transaction", "RESOURCE_LOCAL");
cfg.setInterceptor(new PlayInterceptor());
// This setting is global for all JPAs - only configure if configuring default JPA
if (StringUtils.isEmpty(propPrefix)) {
if (Play.configuration.getProperty(propPrefix + "jpa.debugSQL", "false").equals("true")) {
org.apache.log4j.Logger.getLogger("org.hibernate.SQL").setLevel(Level.ALL);
} else {
org.apache.log4j.Logger.getLogger("org.hibernate.SQL").setLevel(Level.OFF);
}
}
// inject additional hibernate.* settings declared in Play! configuration
Properties additionalProperties =
(Properties)
Utils.Maps.filterMap(Play.configuration, "^" + propPrefix + "hibernate\\..*");
// We must remove prefix from names
Properties transformedAdditionalProperties = new Properties();
for (Map.Entry<Object, Object> entry : additionalProperties.entrySet()) {
Object key = entry.getKey();
if (!StringUtils.isEmpty(propPrefix)) {
key = ((String) key).substring(propPrefix.length()); // chop off the prefix
}
transformedAdditionalProperties.put(key, entry.getValue());
}
cfg.addProperties(transformedAdditionalProperties);
try {
// nice hacking :) I like it..
Field field = cfg.getClass().getDeclaredField("overridenClassLoader");
field.setAccessible(true);
field.set(cfg, Play.classloader);
} catch (Exception e) {
Logger.error(
e, "Error trying to override the hibernate classLoader (new hibernate version ???)");
}
for (Class<?> clazz : classes) {
cfg.addAnnotatedClass(clazz);
if (Logger.isTraceEnabled()) {
Logger.trace("JPA Model : %s", clazz);
}
}
String[] moreEntities =
Play.configuration.getProperty(propPrefix + "jpa.entities", "").split(", ");
for (String entity : moreEntities) {
if (entity.trim().equals("")) {
continue;
}
try {
cfg.addAnnotatedClass(Play.classloader.loadClass(entity));
} catch (Exception e) {
Logger.warn("JPA -> Entity not found: %s", entity);
}
}
for (ApplicationClass applicationClass : Play.classes.all()) {
if (applicationClass.isClass() || applicationClass.javaPackage == null) {
continue;
}
Package p = applicationClass.javaPackage;
Logger.info("JPA -> Adding package: %s", p.getName());
cfg.addPackage(p.getName());
}
String mappingFile = Play.configuration.getProperty(propPrefix + "jpa.mapping-file", "");
if (mappingFile != null && mappingFile.length() > 0) {
cfg.addResource(mappingFile);
}
if (Logger.isTraceEnabled()) {
Logger.trace("Initializing JPA" + getConfigInfoString(configName) + " ...");
}
try {
JPA.addConfiguration(configName, cfg);
} catch (PersistenceException e) {
throw new JPAException(
e.getMessage() + getConfigInfoString(configName),
e.getCause() != null ? e.getCause() : e);
}
}
}
// must look for Entity-objects referring to none-existing JPAConfig
List<Class> allEntityClasses = Play.classloader.getAnnotatedClasses(Entity.class);
for (Class clazz : allEntityClasses) {
String configName = Entity2JPAConfigResolver.getJPAConfigNameForEntityClass(clazz);
if (JPA.getJPAConfig(configName, true) == null) {
throw new JPAException(
"Found Entity-class ("
+ clazz.getName()
+ ") referring to none-existing JPAConfig"
+ getConfigInfoString(configName)
+ ". "
+ "Is JPA properly configured?");
}
}
}
