com.arangodb.springframework.repository.ArangoRepositoryFactory Maven / Gradle / Ivy
/*
* DISCLAIMER
*
* Copyright 2017 ArangoDB GmbH, Cologne, Germany
*
* 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.
*
* Copyright holder is ArangoDB GmbH, Cologne, Germany
*/
package com.arangodb.springframework.repository;
import java.lang.reflect.Method;
import java.util.Optional;
import org.springframework.data.mapping.context.MappingContext;
import org.springframework.data.projection.ProjectionFactory;
import org.springframework.data.repository.Repository;
import org.springframework.data.repository.core.NamedQueries;
import org.springframework.data.repository.core.RepositoryInformation;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.data.repository.core.support.AnnotationRepositoryMetadata;
import org.springframework.data.repository.core.support.DefaultRepositoryMetadata;
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.data.repository.query.RepositoryQuery;
import org.springframework.data.util.ClassTypeInformation;
import org.springframework.data.util.TypeInformation;
import org.springframework.util.Assert;
import com.arangodb.ArangoCursor;
import com.arangodb.springframework.core.ArangoOperations;
import com.arangodb.springframework.core.mapping.ArangoPersistentEntity;
import com.arangodb.springframework.core.mapping.ArangoPersistentProperty;
import com.arangodb.springframework.repository.query.ArangoQueryMethod;
import com.arangodb.springframework.repository.query.DerivedArangoQuery;
import com.arangodb.springframework.repository.query.StringBasedArangoQuery;
/**
*
* @author Audrius Malele
* @author Mark McCormick
* @author Mark Vollmary
* @author Christian Lechner
*/
public class ArangoRepositoryFactory extends RepositoryFactorySupport {
private final ArangoOperations arangoOperations;
private final MappingContext extends ArangoPersistentEntity>, ArangoPersistentProperty> context;
public ArangoRepositoryFactory(final ArangoOperations arangoOperations) {
this.arangoOperations = arangoOperations;
this.context = arangoOperations.getConverter().getMappingContext();
}
@SuppressWarnings("unchecked")
@Override
public ArangoEntityInformation getEntityInformation(final Class domainClass) {
return new ArangoPersistentEntityInformation(
(ArangoPersistentEntity) context.getRequiredPersistentEntity(domainClass));
}
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
protected Object getTargetRepository(final RepositoryInformation metadata) {
return new SimpleArangoRepository(arangoOperations, metadata.getDomainType());
}
@Override
protected Class> getRepositoryBaseClass(final RepositoryMetadata metadata) {
return SimpleArangoRepository.class;
}
@Override
protected RepositoryMetadata getRepositoryMetadata(Class> repositoryInterface) {
Assert.notNull(repositoryInterface, "Repository interface must not be null!");
return Repository.class.isAssignableFrom(repositoryInterface)
? new DefaultArangoRepositoryMetadata(repositoryInterface)
: new AnnotationArangoRepositoryMetadata(repositoryInterface);
}
@Override
protected Optional getQueryLookupStrategy(
final QueryLookupStrategy.Key key,
final EvaluationContextProvider evaluationContextProvider) {
QueryLookupStrategy strategy = null;
switch (key) {
case CREATE_IF_NOT_FOUND:
strategy = new DefaultArangoQueryLookupStrategy(arangoOperations);
break;
case CREATE:
break;
case USE_DECLARED_QUERY:
break;
}
return Optional.ofNullable(strategy);
}
static class DefaultArangoQueryLookupStrategy implements QueryLookupStrategy {
private final ArangoOperations operations;
public DefaultArangoQueryLookupStrategy(final ArangoOperations operations) {
this.operations = operations;
}
@Override
public RepositoryQuery resolveQuery(
final Method method,
final RepositoryMetadata metadata,
final ProjectionFactory factory,
final NamedQueries namedQueries) {
final ArangoQueryMethod queryMethod = new ArangoQueryMethod(method, metadata, factory);
final String namedQueryName = queryMethod.getNamedQueryName();
if (namedQueries.hasQuery(namedQueryName)) {
final String namedQuery = namedQueries.getQuery(namedQueryName);
return new StringBasedArangoQuery(namedQuery, queryMethod, operations);
} else if (queryMethod.hasAnnotatedQuery()) {
return new StringBasedArangoQuery(queryMethod, operations);
} else {
return new DerivedArangoQuery(queryMethod, operations);
}
}
}
static class DefaultArangoRepositoryMetadata extends DefaultRepositoryMetadata {
private final TypeInformation> typeInformation;
public DefaultArangoRepositoryMetadata(Class> repositoryInterface) {
super(repositoryInterface);
typeInformation = ClassTypeInformation.from(repositoryInterface);
}
@Override
public Class> getReturnedDomainClass(Method method) {
if (ArangoCursor.class.isAssignableFrom(method.getReturnType())) {
return typeInformation.getReturnType(method).getRequiredComponentType().getType();
} else {
return super.getReturnedDomainClass(method);
}
}
}
static class AnnotationArangoRepositoryMetadata extends AnnotationRepositoryMetadata {
private final TypeInformation> typeInformation;
public AnnotationArangoRepositoryMetadata(Class> repositoryInterface) {
super(repositoryInterface);
typeInformation = ClassTypeInformation.from(repositoryInterface);
}
@Override
public Class> getReturnedDomainClass(Method method) {
if (ArangoCursor.class.isAssignableFrom(method.getReturnType())) {
return typeInformation.getReturnType(method).getRequiredComponentType().getType();
} else {
return super.getReturnedDomainClass(method);
}
}
}
}
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