[LIB-9] Rename chesshog-dbetude module

[chesshog.git] / chesshog-db-etude / src / main / java / org / hedgecode / chess / service / ServiceRegistry.java

diff --git a/chesshog-db-etude/src/main/java/org/hedgecode/chess/service/ServiceRegistry.java b/chesshog-db-etude/src/main/java/org/hedgecode/chess/service/ServiceRegistry.java
deleted file mode 100644 (file)
index a892bb9..0000000
--- a/chesshog-db-etude/src/main/java/org/hedgecode/chess/service/ServiceRegistry.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * 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);
-
-    }
-
-}