| /* |
| * 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.springdata20.repository.support; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Optional; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.Ignition; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.apache.ignite.springdata20.repository.IgniteRepository; |
| import org.apache.ignite.springdata20.repository.config.Query; |
| import org.apache.ignite.springdata20.repository.config.RepositoryConfig; |
| import org.apache.ignite.springdata20.repository.query.IgniteQuery; |
| import org.apache.ignite.springdata20.repository.query.IgniteQueryGenerator; |
| import org.apache.ignite.springdata20.repository.query.IgniteRepositoryQuery; |
| import org.springframework.data.repository.core.EntityInformation; |
| import org.springframework.data.repository.core.RepositoryInformation; |
| import org.springframework.data.repository.core.RepositoryMetadata; |
| import org.springframework.data.repository.core.support.AbstractEntityInformation; |
| import org.springframework.data.repository.core.support.RepositoryFactorySupport; |
| import org.springframework.data.repository.query.EvaluationContextProvider; |
| import org.springframework.data.repository.query.QueryLookupStrategy; |
| import org.springframework.util.Assert; |
| import org.springframework.util.StringUtils; |
| |
| /** |
| * Crucial for spring-data functionality class. Create proxies for repositories. |
| */ |
| public class IgniteRepositoryFactory extends RepositoryFactorySupport { |
| /** Ignite instance */ |
| private Ignite ignite; |
| |
| /** Mapping of a repository to a cache. */ |
| private final Map<Class<?>, String> repoToCache = new HashMap<>(); |
| |
| /** |
| * Creates the factory with initialized {@link Ignite} instance. |
| * |
| * @param ignite |
| */ |
| public IgniteRepositoryFactory(Ignite ignite) { |
| this.ignite = ignite; |
| } |
| |
| /** |
| * Initializes the factory with provided {@link IgniteConfiguration} that is used to start up an underlying |
| * {@link Ignite} instance. |
| * |
| * @param cfg Ignite configuration. |
| */ |
| public IgniteRepositoryFactory(IgniteConfiguration cfg) { |
| this.ignite = Ignition.start(cfg); |
| } |
| |
| /** |
| * Initializes the factory with provided a configuration under {@code springCfgPath} that is used to start up |
| * an underlying {@link Ignite} instance. |
| * |
| * @param springCfgPath A path to Ignite configuration. |
| */ |
| public IgniteRepositoryFactory(String springCfgPath) { |
| this.ignite = Ignition.start(springCfgPath); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public <T, ID> EntityInformation<T, ID> getEntityInformation(Class<T> domainClass) { |
| return new AbstractEntityInformation<T, ID>(domainClass) { |
| @Override public ID getId(T entity) { |
| return null; |
| } |
| |
| @Override public Class<ID> getIdType() { |
| return null; |
| } |
| }; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected Class<?> getRepositoryBaseClass(RepositoryMetadata metadata) { |
| return IgniteRepositoryImpl.class; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected RepositoryMetadata getRepositoryMetadata(Class<?> repoItf) { |
| Assert.notNull(repoItf, "Repository interface must be set."); |
| Assert.isAssignable(IgniteRepository.class, repoItf, "Repository must implement IgniteRepository interface."); |
| |
| RepositoryConfig annotation = repoItf.getAnnotation(RepositoryConfig.class); |
| |
| Assert.notNull(annotation, "Set a name of an Apache Ignite cache using @RepositoryConfig annotation to map " + |
| "this repository to the underlying cache."); |
| |
| Assert.hasText(annotation.cacheName(), "Set a name of an Apache Ignite cache using @RepositoryConfig " + |
| "annotation to map this repository to the underlying cache."); |
| |
| repoToCache.put(repoItf, annotation.cacheName()); |
| |
| return super.getRepositoryMetadata(repoItf); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected Object getTargetRepository(RepositoryInformation metadata) { |
| return getTargetRepositoryViaReflection(metadata, |
| ignite.getOrCreateCache(repoToCache.get(metadata.getRepositoryInterface()))); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected Optional<QueryLookupStrategy> getQueryLookupStrategy(final QueryLookupStrategy.Key key, |
| EvaluationContextProvider evaluationCtxProvider) { |
| return Optional.of((mtd, metadata, factory, namedQueries) -> { |
| |
| final Query annotation = mtd.getAnnotation(Query.class); |
| |
| if (annotation != null) { |
| String qryStr = annotation.value(); |
| |
| if (key != QueryLookupStrategy.Key.CREATE && StringUtils.hasText(qryStr)) { |
| return new IgniteRepositoryQuery(metadata, |
| new IgniteQuery(qryStr, isFieldQuery(qryStr), IgniteQueryGenerator.getOptions(mtd)), |
| mtd, factory, ignite.getOrCreateCache(repoToCache.get(metadata.getRepositoryInterface()))); |
| } |
| } |
| |
| if (key == QueryLookupStrategy.Key.USE_DECLARED_QUERY) { |
| throw new IllegalStateException("To use QueryLookupStrategy.Key.USE_DECLARED_QUERY, pass " + |
| "a query string via org.apache.ignite.springdata.repository.config.Query annotation."); |
| } |
| |
| return new IgniteRepositoryQuery(metadata, IgniteQueryGenerator.generateSql(mtd, metadata), mtd, |
| factory, ignite.getOrCreateCache(repoToCache.get(metadata.getRepositoryInterface()))); |
| }); |
| } |
| |
| /** |
| * @param qry Query string. |
| * @return {@code true} if query is SQLFieldsQuery. |
| */ |
| private boolean isFieldQuery(String qry) { |
| return qry.matches("^SELECT.*") && !qry.matches("^SELECT\\s+(?:\\w+\\.)?+\\*.*"); |
| } |
| } |