org.jnosql.artemis.hazelcast.key.HazelcastRepositoryProxy Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of hazelcast-extension Show documentation

Eclipse JNoSQL mapping layer, Artemis, to Hazelcast

The newest version!

/*
 *  Copyright (c) 2017 Otávio Santana and others
 *   All rights reserved. This program and the accompanying materials
 *   are made available under the terms of the Eclipse Public License v1.0
 *   and Apache License v2.0 which accompanies this distribution.
 *   The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 *   and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
 *
 *   You may elect to redistribute this code under either of these licenses.
 *
 *   Contributors:
 *
 *   Otavio Santana
 */
package org.jnosql.artemis.hazelcast.key;

import org.jnosql.artemis.Repository;
import org.jnosql.artemis.reflection.DynamicReturn;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Objects;

import static org.jnosql.artemis.reflection.DynamicReturn.toSingleResult;

class HazelcastRepositoryProxy implements InvocationHandler {

    private final HazelcastTemplate template;

    private final Repository repository;

    private final Class typeClass;


    HazelcastRepositoryProxy(HazelcastTemplate template, Class repositoryType, Repository repository) {
        this.template = template;
        this.typeClass = Class.class.cast(ParameterizedType.class.cast(repositoryType.getGenericInterfaces()[0])
                .getActualTypeArguments()[0]);
        this.repository = repository;
    }


    @Override
    public Object invoke(Object instance, Method method, Object[] args) throws Throwable {

        Query query = method.getAnnotation(Query.class);
        if (Objects.nonNull(query)) {
            List result;
            Map params = ParamUtil.getParams(args, method);
            if (params.isEmpty()) {
                result = new ArrayList<>(template.sql(query.value()));
            } else {
                result = new ArrayList<>(template.sql(query.value(), params));
            }

            return DynamicReturn.builder()
                    .withClassSource(typeClass)
                    .withMethodSource(method).withList(() -> result)
                    .withSingleResult(toSingleResult(method).apply(() -> result))
                    .build().execute();
        }
        return method.invoke(repository, args);
    }

}