--- /dev/null
+/*
+ * Copyright (c) 2018. Developed by Hedgecode.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.hedgecode.chess.service;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+import org.hedgecode.chess.domain.Adapter;
+import org.hedgecode.chess.domain.EtudeAdapter;
+import org.hedgecode.chess.dto.EtudeDTO;
+import org.hedgecode.chess.persistence.PersistenceManager;
+
+/**
+ * Service Provider Interface (SPI) Registry.
+ *
+ * @author Dmitry Samoshin aka gotty
+ */
+public final class ServiceRegistry {
+
+ private ServiceRegistry() {
+ }
+
+ public static <ServiceType> Iterator<ServiceType> providers(Class<ServiceType> serviceClass) {
+ final Iterator<ServiceType> providers = ServiceLoader.load(serviceClass).iterator();
+
+ if (!providers.hasNext()) {
+ throw new ServiceRegistryException("service.provider.not.found", serviceClass.getName());
+ }
+
+ return providers;
+ }
+
+ public static <ServiceType> ServiceType singleProvider(Class<ServiceType> serviceClass) {
+ final Iterator<ServiceType> providers = providers(serviceClass);
+
+ ServiceType provider = providers.next();
+ if (providers.hasNext()) {
+ throw new ServiceRegistryException("service.too.many.providers", serviceClass.getName());
+ }
+
+ return provider;
+ }
+
+ public static <AdapterType extends Adapter, TargetType> AdapterType singleAdapter(
+ Class<AdapterType> adapterClass,
+ Class<TargetType> targetClass)
+ {
+ AdapterType targetAdapter = null;
+
+ final Iterator<AdapterType> providers = providers(adapterClass);
+
+ while (providers.hasNext()) {
+ AdapterType adapter = providers.next();
+ if (adapter.getTargetClass().equals(targetClass)) {
+ if (targetAdapter != null)
+ throw new ServiceRegistryException(
+ "service.too.many.adapters", adapterClass.getName(), targetClass.getName()
+ );
+ targetAdapter = adapter;
+ }
+ }
+ if (targetAdapter == null)
+ throw new ServiceRegistryException(
+ "service.adapter.not.found", adapterClass.getName(), targetClass.getName()
+ );
+
+ return targetAdapter;
+ }
+
+
+ public static void main(String... args) {
+
+ AuthorService as = ServiceRegistry.singleProvider(AuthorService.class);
+ System.out.println(as);
+ PersistenceManager pm = ServiceRegistry.singleProvider(PersistenceManager.class);
+ System.out.println(pm);
+ EtudeAdapter ea = ServiceRegistry.singleAdapter(EtudeAdapter.class, EtudeDTO.class);
+ System.out.println(ea);
+
+ }
+
+}
--- /dev/null
+/*
+ * Copyright (c) 2018. Developed by Hedgecode.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.hedgecode.chess.service;
+
+import java.util.ResourceBundle;
+
+import org.hedgecode.chess.EtudeConstants;
+
+/**
+ * Service Provider Interface (SPI) Registry Exception.
+ *
+ * @author Dmitry Samoshin aka gotty
+ */
+public class ServiceRegistryException extends RuntimeException {
+
+ private static final ResourceBundle LOCALE_BUNDLE =
+ ResourceBundle.getBundle(EtudeConstants.SERVICE_BUNDLE_FILE);
+
+ public ServiceRegistryException(String localeKey) {
+ super(
+ LOCALE_BUNDLE.getString(localeKey)
+ );
+ }
+
+ public ServiceRegistryException(String localeKey, Object... parameters) {
+ super(
+ String.format(
+ LOCALE_BUNDLE.getString(localeKey), parameters
+ )
+ );
+ }
+
+}
Query query = getEntityManager().createNamedQuery(
Author.FIND_BY_ID
);
- query.setParameter(Author.ID_PROPERTY, id);
+ query.setParameter(Author.ID_PARAMETER, id);
return (Author) query.getSingleResult();
}
Query query = getEntityManager().createNamedQuery(
Author.FIND_BY_NAME
);
- query.setParameter(Author.NAME_PROPERTY, name);
+ query.setParameter(Author.NAME_PARAMETER, name);
return query.getResultList();
}
Query query = getEntityManager().createNamedQuery(
Author.FIND_BY_BIRTHDATE
);
- query.setParameter(Author.BIRTHDATE_PROPERTY, birthdate);
+ query.setParameter(Author.BIRTHDATE_PARAMETER, birthdate);
return query.getResultList();
}
package org.hedgecode.chess.service.jpa;
import javax.persistence.EntityManager;
-import javax.persistence.Persistence;
import org.hedgecode.chess.domain.DomainObject;
+import org.hedgecode.chess.persistence.PersistenceManager;
import org.hedgecode.chess.service.DomainService;
+import org.hedgecode.chess.service.ServiceRegistry;
/**
*
*/
public abstract class JpaDomainService<DomainType extends DomainObject> implements DomainService<DomainType> {
- // todo: maybe single entityManager
- private DomainManager domainManager;
-
JpaDomainService() {
- domainManager = new DomainManager();
}
EntityManager getEntityManager() {
- return domainManager.getEntityManager();
+ PersistenceManager persistenceManager = ServiceRegistry.singleProvider(
+ PersistenceManager.class
+ );
+ return persistenceManager.getEntityManager();
}
@Override
);
}
- private class DomainManager {
-
- private static final String PERSISTENCE_UNIT_NAME = "db-etude-persistence-unit";
-
- private EntityManager entityManager;
-
- EntityManager getEntityManager() {
- if (entityManager == null)
- createEntityManager();
- return entityManager;
- }
-
- void createEntityManager() {
- entityManager = Persistence.createEntityManagerFactory(
- PERSISTENCE_UNIT_NAME
- ).createEntityManager();
- }
-
- }
-
}
Query query = getEntityManager().createNamedQuery(
Etude.FIND_BY_ID
);
- query.setParameter(Etude.ID_PROPERTY, id);
+ query.setParameter(Etude.ID_PARAMETER, id);
return (Etude) query.getSingleResult();
}
Query query = getEntityManager().createNamedQuery(
Etude.FIND_BY_HASH
);
- query.setParameter(Etude.HASH_PROPERTY, hash);
+ query.setParameter(Etude.HASH_PARAMETER, hash);
return query.getResultList();
}
Query query = getEntityManager().createNamedQuery(
Etude.FIND_BY_TYPE
);
- query.setParameter(Etude.TYPE_PROPERTY, etudeType);
+ query.setParameter(Etude.TYPE_PARAMETER, etudeType);
return query.getResultList();
}
Query query = getEntityManager().createNamedQuery(
Etude.FIND_BY_AUTHOR
);
- query.setParameter(Etude.AUTHOR_PROPERTY, author);
+ query.setParameter(Etude.AUTHOR_PARAMETER, author);
return query.getResultList();
}
Query query = getEntityManager().createNamedQuery(
Etude.FIND_BY_BLOB
);
- query.setParameter(Etude.BLOB_PROPERTY, blob);
+ query.setParameter(Etude.BLOB_PARAMETER, blob);
return query.getResultList();
}
Query query = getEntityManager().createNamedQuery(
EtudeType.FIND_BY_ID
);
- query.setParameter(EtudeType.ID_PROPERTY, id);
+ query.setParameter(EtudeType.ID_PARAMETER, id);
return (EtudeType) query.getSingleResult();
}
Query query = getEntityManager().createNamedQuery(
EtudeType.FIND_BY_BRIEF
);
- query.setParameter(EtudeType.BRIEF_PROPERTY, brief);
+ query.setParameter(EtudeType.BRIEF_PARAMETER, brief);
return (EtudeType) query.getSingleResult();
}
--- /dev/null
+org.hedgecode.chess.dto.AuthorDTOAdapter
\ No newline at end of file
--- /dev/null
+org.hedgecode.chess.dto.EtudeDTOAdapter
+org.hedgecode.chess.domain.EtudePGNAdapter
\ No newline at end of file
--- /dev/null
+org.hedgecode.chess.dto.EtudeTypeDTOAdapter
\ No newline at end of file
--- /dev/null
+org.hedgecode.chess.persistence.EnvPersistenceManager
\ No newline at end of file
--- /dev/null
+org.hedgecode.chess.service.jpa.JpaAuthorService
\ No newline at end of file
--- /dev/null
+org.hedgecode.chess.service.jpa.JpaEtudeService
\ No newline at end of file
--- /dev/null
+org.hedgecode.chess.service.jpa.JpaEtudeTypeService
\ No newline at end of file
--- /dev/null
+# Copyright (c) 2018. Developed by Hedgecode.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Default localized string information
+# Localized for Locale en_US
+
+service.provider.not.found=Service provider for %s not found
+service.too.many.providers=Too many service providers for %s
+service.adapter.not.found=Service adapter for %s with target type %s not found
+service.too.many.adapters=Too many service adapters for %s with target type %s
--- /dev/null
+# Copyright (c) 2018. Developed by Hedgecode.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Localized for Locale ru_RU
+
+service.provider.not.found=\u041F\u043E\u0441\u0442\u0430\u0432\u0449\u0438\u043A \u0441\u0435\u0440\u0432\u0438\u0441\u0430 %s \u043D\u0435 \u043D\u0430\u0439\u0434\u0435\u043D
+service.too.many.providers=\u0421\u043B\u0438\u0448\u043A\u043E\u043C \u043C\u043D\u043E\u0433\u043E \u043F\u043E\u0441\u0442\u0430\u0432\u0449\u0438\u043A\u043E\u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 %s
+service.adapter.not.found=\u0410\u0434\u0430\u043F\u0442\u0435\u0440 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 %s \u0441 \u0446\u0435\u043B\u0435\u0432\u044B\u043C \u0442\u0438\u043F\u043E\u043C %s \u043D\u0435 \u043D\u0430\u0439\u0434\u0435\u043D
+service.too.many.adapters=\u0421\u043B\u0438\u0448\u043A\u043E\u043C \u043C\u043D\u043E\u0433\u043E \u0430\u0434\u0430\u043F\u0442\u0435\u0440\u043E\u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 %s \u0441 \u0446\u0435\u043B\u0435\u0432\u044B\u043C \u0442\u0438\u043F\u043E\u043C %s
git.hedgecode.org / chesshog.git / commitdiff