| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.ignite.springdata.repository.support; |
| |
| import java.io.Serializable; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeSet; |
| import javax.cache.Cache; |
| import org.apache.ignite.IgniteCache; |
| import org.apache.ignite.cache.CachePeekMode; |
| import org.apache.ignite.springdata.repository.IgniteRepository; |
| |
| import static java.util.Collections.emptySet; |
| |
| /** |
| * General Apache Ignite repository implementation. |
| */ |
| public class IgniteRepositoryImpl<T, ID extends Serializable> implements IgniteRepository<T, ID> { |
| /** Ignite Cache bound to the repository */ |
| private final IgniteCache<ID, T> cache; |
| |
| /** |
| * Repository constructor. |
| * |
| * @param cache Initialized cache instance. |
| */ |
| public IgniteRepositoryImpl(IgniteCache<ID, T> cache) { |
| this.cache = cache; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <S extends T> S save(ID key, S entity) { |
| cache.put(key, entity); |
| |
| return entity; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <S extends T> Iterable<S> save(Map<ID, S> entities) { |
| cache.putAll(entities); |
| |
| return entities.values(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <S extends T> S save(S entity) { |
| throw new UnsupportedOperationException("Use IgniteRepository.save(key,value) method instead."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <S extends T> Iterable<S> save(Iterable<S> entities) { |
| throw new UnsupportedOperationException("Use IgniteRepository.save(Map<keys,value>) method instead."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public T findOne(ID id) { |
| return cache.get(id); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean exists(ID id) { |
| return cache.containsKey(id); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Iterable<T> findAll() { |
| final Iterator<Cache.Entry<ID, T>> iter = cache.iterator(); |
| |
| return new Iterable<T>() { |
| @Override public Iterator<T> iterator() { |
| return new Iterator<T>() { |
| @Override public boolean hasNext() { |
| return iter.hasNext(); |
| } |
| |
| @Override public T next() { |
| return iter.next().getValue(); |
| } |
| |
| @Override public void remove() { |
| iter.remove(); |
| } |
| }; |
| } |
| }; |
| } |
| |
| /** |
| * @param ids Collection of IDs. |
| * @return Collection transformed to set. |
| */ |
| private Set<ID> toSet(Iterable<ID> ids) { |
| if (ids instanceof Set) |
| return (Set<ID>)ids; |
| |
| Iterator<ID> itr = ids.iterator(); |
| |
| if (!itr.hasNext()) |
| return emptySet(); |
| |
| ID key = itr.next(); |
| |
| Set<ID> keys = key instanceof Comparable ? new TreeSet<>() : new HashSet<>(); |
| |
| keys.add(key); |
| |
| while (itr.hasNext()) { |
| key = itr.next(); |
| |
| keys.add(key); |
| } |
| |
| return keys; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Iterable<T> findAll(Iterable<ID> ids) { |
| return cache.getAll(toSet(ids)).values(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public long count() { |
| return cache.size(CachePeekMode.PRIMARY); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void delete(ID id) { |
| cache.remove(id); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void delete(T entity) { |
| throw new UnsupportedOperationException("Use IgniteRepository.delete(key) method instead."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void delete(Iterable<? extends T> entities) { |
| throw new UnsupportedOperationException("Use IgniteRepository.deleteAll(keys) method instead."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void deleteAll(Iterable<ID> ids) { |
| cache.removeAll(toSet(ids)); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void deleteAll() { |
| cache.clear(); |
| } |
| } |