private void generateEvent(final Event event) throws Exception {
final ClassWriter classWriter =
new ClassWriter(
this,
getSrcGeneratedDirectory(),
GeneratorHelper.getEventPackage(domain),
GeneratorHelper.getEventClassName(event));
if (event.getParameter() != null) {
for (final Parameter parameter : event.getParameter()) {
classWriter.addClassMembers(parameter);
}
}
classWriter.addExtend(GeneratorHelper.getBusinessEventExtends(event));
// Constant
classWriter.addConstants(
"public static final com.ponysdk.core.event.Event.Type<"
+ GeneratorHelper.getHandlerClassName(event)
+ "> TYPE = new com.ponysdk.core.event.Event.Type<"
+ GeneratorHelper.getHandlerClassName(event)
+ ">();");
// Build constructor
final Parameter sourceComponentParameter = new Parameter();
sourceComponentParameter.setName("sourceComponent");
sourceComponentParameter.setClazz("java.lang.Object");
final List<Parameter> superConstructorParameters = new ArrayList<Parameter>();
superConstructorParameters.add(sourceComponentParameter);
final List<Parameter> constructorParameters = new ArrayList<Parameter>(event.getParameter());
constructorParameters.add(0, sourceComponentParameter);
final Constructor constructor =
new Constructor(constructorParameters, superConstructorParameters);
classWriter.addConstructor(constructor);
// Build methods
classWriter.addLine("@Override");
classWriter.addLine(
"protected void dispatch(" + GeneratorHelper.getHandlerClassName(event) + " handler) {");
classWriter.addLine(" handler.on" + event.getName() + "(this);");
classWriter.addLine("}");
classWriter.addNewLine();
classWriter.addLine("@Override");
classWriter.addLine(
"public com.ponysdk.core.event.Event.Type<"
+ GeneratorHelper.getHandlerClassName(event)
+ "> getAssociatedType() {");
classWriter.addLine(" return TYPE;");
classWriter.addLine("}");
// Adding
classWriter.setGenerateGetter(true);
classWriter.generateContentAndStore();
}
private void generateHandler(final Event event) throws Exception {
final ClassWriter classWriter =
new ClassWriter(
this,
getSrcGeneratedDirectory(),
GeneratorHelper.getEventPackage(domain),
GeneratorHelper.getHandlerClassName(event));
classWriter.setInterface(true);
classWriter.addExtend("com.ponysdk.core.event.EventHandler");
// Build event method
classWriter.addLine(
"public void on"
+ event.getName()
+ "("
+ GeneratorHelper.getEventClassName(event)
+ " event);");
classWriter.generateContentAndStore();
}
private void generateCRUDMethos() throws Exception {
// Insert CRUD methods
if (domain.getService() != null && domain.getService().getCrudmethod() != null) {
// Return
final Return crudReturn = new Return();
crudReturn.setClazz(domain.getService().getCrudmethod().getClazz());
// Parameters
final Parameter crudParameter = new Parameter();
crudParameter.setClazz(domain.getService().getCrudmethod().getClazz());
crudParameter.setName(GeneratorHelper.getFirstCharToLower(domain.getName()));
final Parameter crudIDParameter = new Parameter();
crudIDParameter.setClazz("long");
crudIDParameter.setName(GeneratorHelper.getFirstCharToLower(domain.getName()) + "ID");
// Add CRUD methods
final Method createMethod =
createCRUDMethod("create" + domain.getName(), crudParameter, crudReturn);
final Method readMethod =
createCRUDMethod("read" + domain.getName(), crudIDParameter, crudReturn);
final Method updateMethod =
createCRUDMethod("update" + domain.getName(), crudParameter, crudReturn);
final Method deleteMethod =
createCRUDMethod("delete" + domain.getName(), crudIDParameter, new Return());
// Create the implementation class of these CRUD methods if the HibernateDAO is set
if (domain.getService().getDao() != null) {
final ClassWriter classWriter =
new ClassWriter(
this,
getSrcGeneratedDirectory(),
GeneratorHelper.getServerServicePackage(domain),
GeneratorHelper.getServiceImplClassName(domain));
classWriter.addImplements(GeneratorHelper.getServiceClassName(domain));
classWriter.setGenerateGetter(true);
classWriter.setGenerateSetter(true);
// Add static logger
classWriter.addConstants(
"private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger("
+ GeneratorHelper.getServiceImplClassName(domain)
+ ".class);");
// Add service HibernateDAO object
final Parameter daoParameter = new Parameter();
daoParameter.setClazz(
GeneratorHelper.getDAOPackage(domain) + "." + GeneratorHelper.getDAOClassName(domain));
daoParameter.setName(
GeneratorHelper.getFirstCharToLower(GeneratorHelper.getDAOClassName(domain)));
classWriter.addClassMembers(daoParameter);
for (final Method method : domain.getService().getMethod()) {
final String resultClass = GeneratorHelper.getClassName(method.getReturn());
classWriter.addNewLine();
classWriter.addLine("@Override");
classWriter.addLine(
"public "
+ resultClass
+ " "
+ method.getName()
+ "("
+ GeneratorHelper.getParameterToString(method.getParameter())
+ ") throws Exception {");
if (!"void".equals(resultClass)) {
classWriter.addLine(" return null;");
}
classWriter.addLine("}");
}
final String domainClass = domain.getName();
final String domainDAOParameter =
GeneratorHelper.getFirstCharToLower(GeneratorHelper.getDAOClassName(domain));
final String domainParameter = GeneratorHelper.getFirstCharToLower(domain.getName());
final String domainParameterID = domainParameter + "ID";
/*
* CRUD method implementation
*/
// Create
classWriter.addLine("@Override");
classWriter.addLine(
"public "
+ GeneratorHelper.getClassName(createMethod.getReturn())
+ " "
+ createMethod.getName()
+ " ("
+ GeneratorHelper.getParameterToString(createMethod.getParameter())
+ ") throws Exception {");
classWriter.addLine(" " + domainDAOParameter + ".beginTransaction();");
classWriter.addLine(" try {");
classWriter.addLine(" " + domainDAOParameter + ".save(" + domainParameter + ");");
classWriter.addLine(" " + domainDAOParameter + ".commit();");
classWriter.addLine(" } catch (final Exception e) {");
classWriter.addLine(
" log.error(\"final Cannot create " + domainClass + " in database\", e);");
classWriter.addLine(" " + domainDAOParameter + ".rollback();");
classWriter.addLine(
" throw new Exception(\"Cannot create " + domainClass + " in database\", e);");
classWriter.addLine(" }");
classWriter.addLine(" return " + domainParameter + ";");
classWriter.addLine("}");
// Read
classWriter.addLine("@Override");
classWriter.addLine(
"public "
+ GeneratorHelper.getClassName(createMethod.getReturn())
+ " "
+ readMethod.getName()
+ " ("
+ GeneratorHelper.getParameterToString(readMethod.getParameter())
+ ") throws Exception {");
classWriter.addLine(
" "
+ GeneratorHelper.getClassName(createMethod.getReturn())
+ " "
+ domainParameter
+ " = null;");
classWriter.addLine(" " + domainDAOParameter + ".beginTransaction();");
classWriter.addLine(" try {");
classWriter.addLine(
" "
+ domainParameter
+ " = "
+ domainDAOParameter
+ ".findById("
+ domainParameterID
+ ");");
classWriter.addLine(" " + domainDAOParameter + ".commit();");
classWriter.addLine(" } catch (final Exception e) {");
classWriter.addLine(
" log.error(\"final Cannot find " + domain.getName() + " in database\", e);");
classWriter.addLine(" " + domainDAOParameter + ".rollback();");
classWriter.addLine(
" throw new Exception(\"Cannot find " + domain.getName() + " in database\", e);");
classWriter.addLine(" }");
classWriter.addLine(" return " + domainParameter + ";");
classWriter.addLine("}");
// Update
classWriter.addLine("@Override");
classWriter.addLine(
"public "
+ GeneratorHelper.getClassName(updateMethod.getReturn())
+ " "
+ updateMethod.getName()
+ " ("
+ GeneratorHelper.getParameterToString(updateMethod.getParameter())
+ ") throws Exception {");
classWriter.addLine(" " + domainDAOParameter + ".beginTransaction();");
classWriter.addLine(" try {");
classWriter.addLine(
" " + domainDAOParameter + ".saveOrUpdate(" + domainParameter + ");");
classWriter.addLine(" " + domainDAOParameter + ".commit();");
classWriter.addLine(" } catch (final Exception e) {");
classWriter.addLine(
" log.error(\"final Cannot update " + domainClass + " in database\", e);");
classWriter.addLine(" " + domainDAOParameter + ".rollback();");
classWriter.addLine(
" throw new Exception(\"Cannot update " + domainClass + " in database\", e);");
classWriter.addLine(" }");
classWriter.addLine(" return " + domainParameter + ";");
classWriter.addLine("}");
// Delete
classWriter.addLine("@Override");
classWriter.addLine(
"public "
+ GeneratorHelper.getClassName(deleteMethod.getReturn())
+ " "
+ deleteMethod.getName()
+ " ("
+ GeneratorHelper.getParameterToString(deleteMethod.getParameter())
+ ") throws Exception {");
classWriter.addLine(" " + domainDAOParameter + ".beginTransaction();");
classWriter.addLine(" try {");
classWriter.addLine(
" "
+ GeneratorHelper.getClassName(createMethod.getReturn())
+ " "
+ domainParameter
+ " = "
+ domainDAOParameter
+ ".findById("
+ domainParameterID
+ ");");
classWriter.addLine(" " + domainDAOParameter + ".delete(" + domainParameter + ");");
classWriter.addLine(" " + domainDAOParameter + ".commit();");
classWriter.addLine(" } catch (final Exception e) {");
classWriter.addLine(
" log.error(\"final Cannot delete " + domain.getName() + " in database\", e);");
classWriter.addLine(" " + domainDAOParameter + ".rollback();");
classWriter.addLine(
" throw new Exception(\"Cannot delete "
+ domain.getName()
+ " in database\", e);");
classWriter.addLine(" }");
classWriter.addLine("}");
classWriter.generateContentAndStore();
}
domain.getService().getMethod().add(createMethod);
domain.getService().getMethod().add(readMethod);
domain.getService().getMethod().add(updateMethod);
domain.getService().getMethod().add(deleteMethod);
}
}
/*
* Services : MongoDBDAO
*/
private void generateMongoDBDAO(final Dao dao) throws Exception {
final ClassWriter classWriter =
new ClassWriter(
this,
getSrcGeneratedDirectory(),
GeneratorHelper.getDAOPackage(domain),
GeneratorHelper.getDAOClassName(domain));
classWriter.addImport("com.fasterxml.jackson.databind.ObjectMapper");
classWriter.addImport("com.mongodb.BasicDBObject");
classWriter.addImport("com.mongodb.DBCollection");
classWriter.addImport("com.mongodb.DBObject");
classWriter.addImport("com.mongodb.DBCursor");
classWriter.addImport("java.util.List");
classWriter.addImport("java.util.ArrayList");
classWriter.addExtend("com.ponysdk.mongodb.dao.MongoDAO");
// Add static logger
classWriter.addConstants(
"private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger("
+ GeneratorHelper.getDAOClassName(domain)
+ ".class);");
// Create constructor
final List<Parameter> parameters = new ArrayList<Parameter>();
final Parameter sessionFactoryParameter = new Parameter();
sessionFactoryParameter.setName("sessionFactory");
sessionFactoryParameter.setClazz("org.hibernate.SessionFactory");
// parameters.add(sessionFactoryParameter);
final Constructor constructor = new Constructor(parameters, parameters);
classWriter.addConstructor(constructor);
// Create findById method
classWriter.addNewLine();
classWriter.addLine("final public " + dao.getClazz() + " findById(final long id) {");
classWriter.addLine(" if (log.isDebugEnabled()) {");
classWriter.addLine(
" log.debug(\"getting " + domain.getName() + " instance with id: \" + id);");
classWriter.addLine(" }");
classWriter.addNewLine();
classWriter.addLine(" try {");
classWriter.addLine(
" DBCollection collection = db.getCollection(\""
+ domain.getName().toLowerCase()
+ "\");");
classWriter.addLine(" BasicDBObject basicDBObject = new BasicDBObject(\"id\"," + "id);");
classWriter.addLine(" final DBObject foundInstance = collection.findOne(basicDBObject);");
classWriter.addLine(" " + dao.getClazz() + " instance = null;");
classWriter.addLine(" return toModel(foundInstance);");
classWriter.addLine(" } catch (final Exception re) {");
classWriter.addLine(" log.error(\"getting " + domain.getName() + " by id failed\", re);");
classWriter.addLine(" throw new RuntimeException(re);");
classWriter.addLine(" }");
classWriter.addLine("}");
classWriter.addLine("private " + dao.getClazz() + " toModel(DBObject dbObject) {");
classWriter.addLine(" if (dbObject == null) return null;");
classWriter.addLine(" final ObjectMapper mapper = new ObjectMapper();");
classWriter.addLine(" try{");
classWriter.addLine(
" "
+ dao.getClazz()
+ " model = mapper.readValue(dbObject.toString(), "
+ dao.getClazz()
+ ".class);");
classWriter.addLine(" model.setID(dbObject.get(\"_id\"));");
classWriter.addLine(" return model;");
classWriter.addLine(" } catch (final Exception e) {");
classWriter.addLine(" log.error(\"toModel " + domain.getName() + " failed\", e);");
classWriter.addLine(" throw new RuntimeException(e);");
classWriter.addLine(" }");
classWriter.addLine("}");
// Create findAll method
classWriter.addNewLine();
classWriter.addLine("@SuppressWarnings(\"unchecked\")");
classWriter.addLine("public java.util.List<" + dao.getClazz() + "> findAll() {");
classWriter.addLine(" if (log.isDebugEnabled()) {");
classWriter.addLine(" log.debug(\"finding all " + domain.getName() + "\");");
classWriter.addLine(" }");
classWriter.addNewLine();
classWriter.addLine(" DBCursor cursor = null;");
classWriter.addLine(" try {");
classWriter.addLine(
" DBCollection collection = db.getCollection(\""
+ domain.getName().toLowerCase()
+ "\");");
classWriter.addLine(" cursor = collection.find();");
classWriter.addLine(
" List<" + dao.getClazz() + "> result = new ArrayList<" + dao.getClazz() + ">();");
classWriter.addLine(" while(cursor.hasNext()){");
classWriter.addLine(" result.add(toModel(cursor.next()));");
classWriter.addLine(" }");
classWriter.addLine(" return result;");
classWriter.addLine(" } catch (final RuntimeException re) {");
classWriter.addLine(" log.error(\"finding all " + domain.getName() + " failed\", re);");
classWriter.addLine(" throw re;");
classWriter.addLine(" } finally{");
classWriter.addLine(" cursor.close();");
classWriter.addLine(" }");
classWriter.addLine("}");
// Create find by query method
classWriter.addNewLine();
classWriter.addLine("@SuppressWarnings(\"unchecked\")");
classWriter.addLine("@Override");
classWriter.addLine("public java.util.List<" + dao.getClazz() + "> find(Object query) {");
classWriter.addLine(" if (log.isDebugEnabled()) {");
classWriter.addLine(" log.debug(\"finding " + domain.getName() + " by query\");");
classWriter.addLine(" }");
classWriter.addNewLine();
classWriter.addLine(" DBCursor cursor = null;");
classWriter.addLine(" try {");
classWriter.addLine(
" DBCollection collection = db.getCollection(\""
+ domain.getName().toLowerCase()
+ "\");");
classWriter.addLine(" cursor = collection.find((DBObject)query);");
classWriter.addLine(
" List<" + dao.getClazz() + "> result = new ArrayList<" + dao.getClazz() + ">();");
classWriter.addLine(" while(cursor.hasNext()){");
classWriter.addLine(" result.add(toModel(cursor.next()));");
classWriter.addLine(" }");
classWriter.addLine(" return result;");
classWriter.addLine(" } catch (final RuntimeException re) {");
classWriter.addLine(" log.error(\"find " + domain.getName() + " failed\", re);");
classWriter.addLine(" throw re;");
classWriter.addLine(" } finally{");
classWriter.addLine(" cursor.close();");
classWriter.addLine(" }");
classWriter.addLine("}");
classWriter.generateContentAndStore();
}
private void generateHibernateDAO(final Dao dao) throws Exception {
final ClassWriter classWriter =
new ClassWriter(
this,
getSrcGeneratedDirectory(),
GeneratorHelper.getDAOPackage(domain),
GeneratorHelper.getDAOClassName(domain));
classWriter.addExtend("com.ponysdk.hibernate.dao.HibernateDAO");
// Add static logger
classWriter.addConstants(
"private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger("
+ GeneratorHelper.getDAOClassName(domain)
+ ".class);");
// Create constructor
final List<Parameter> parameters = new ArrayList<Parameter>();
final Parameter sessionFactoryParameter = new Parameter();
sessionFactoryParameter.setName("sessionFactory");
sessionFactoryParameter.setClazz("org.hibernate.SessionFactory");
parameters.add(sessionFactoryParameter);
final Constructor constructor = new Constructor(parameters, parameters);
classWriter.addConstructor(constructor);
// Create findById method
classWriter.addNewLine();
classWriter.addLine("final public " + dao.getClazz() + " findById(final long id) {");
classWriter.addLine(" if (log.isDebugEnabled()) {");
classWriter.addLine(
" log.debug(\"getting " + domain.getName() + " instance with id: \" + id);");
classWriter.addLine(" }");
classWriter.addNewLine();
classWriter.addLine(" try {");
classWriter.addLine(
" "
+ dao.getClazz()
+ " instance = ("
+ dao.getClazz()
+ ") sessionFactory.getCurrentSession().get("
+ dao.getClazz()
+ ".class, id);");
classWriter.addLine(" return instance;");
classWriter.addLine(" } catch (final RuntimeException re) {");
classWriter.addLine(" log.error(\"getting " + domain.getName() + " by id failed\", re);");
classWriter.addLine(" throw re;");
classWriter.addLine(" }");
classWriter.addLine("}");
// Create findAll method
classWriter.addNewLine();
classWriter.addLine("@SuppressWarnings(\"unchecked\")");
classWriter.addLine("public java.util.List<" + dao.getClazz() + "> findAll() {");
classWriter.addLine(" if (log.isDebugEnabled()) {");
classWriter.addLine(
" log.debug(\"finding " + domain.getName() + " instance by example\");");
classWriter.addLine(" }");
classWriter.addNewLine();
classWriter.addLine(" try {");
classWriter.addLine(
" final java.util.List<"
+ dao.getClazz()
+ "> results = sessionFactory.getCurrentSession().createQuery(\"FROM "
+ domain.getName()
+ "\").list();");
classWriter.addLine(" return results;");
classWriter.addLine(" } catch (final RuntimeException re) {");
classWriter.addLine(" log.error(\"finding all " + domain.getName() + " failed\", re);");
classWriter.addLine(" throw re;");
classWriter.addLine(" }");
classWriter.addLine("}");
classWriter.generateContentAndStore();
}
private void generateService() throws Exception {
final String className = GeneratorHelper.getServiceClassName(domain);
final ClassWriter classWriter =
new ClassWriter(
this, getSrcGeneratedDirectory(), GeneratorHelper.getServicePackage(domain), className);
classWriter.setInterface(true);
classWriter.addExtend("com.ponysdk.core.service.PonyService");
if (domain.getService() != null) {
for (final Method method : domain.getService().getMethod()) {
final String returnClass = GeneratorHelper.getClassName(method.getReturn());
classWriter.addLine(
"public "
+ returnClass
+ " "
+ method.getName()
+ "("
+ GeneratorHelper.getParameterToString(method.getParameter())
+ ") throws Exception;");
}
for (final Pushmethod method : domain.getService().getPushmethod()) {
if (method.getParameter().isEmpty()) {
classWriter.addLine(
"public com.ponysdk.core.event.HandlerRegistration "
+ method.getName()
+ "Registration(com.ponysdk.core.command.PushListener<"
+ method.getType()
+ "> listener);");
} else {
classWriter.addLine(
"public com.ponysdk.core.event.HandlerRegistration "
+ method.getName()
+ "Registration("
+ GeneratorHelper.getParameterToString(method.getParameter())
+ ", com.ponysdk.core.command.PushListener<"
+ method.getType()
+ "> listener);");
}
}
final Dao dao = domain.getService().getDao();
if (dao != null) {
switch (dao.getDaoLayer()) {
case HIBERNATE:
generateHibernateDAO(dao);
break;
case MONGODB:
generateMongoDBDAO(dao);
break;
default:
System.err.println(
dao.getDaoLayer()
+ " HibernateDAO generation ignored for class"
+ domain.getService().getDao().getClazz()
+ ". Only "
+ DaoLayer.HIBERNATE
+ " is supported");
}
}
}
classWriter.generateContentAndStore();
}
