| /* |
| * 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 io.mifos.core.cassandra.core; |
| |
| import com.datastax.driver.core.ResultSet; |
| import com.datastax.driver.core.Statement; |
| import com.datastax.driver.mapping.Mapper; |
| |
| import javax.annotation.Nonnull; |
| import java.util.List; |
| import java.util.Optional; |
| |
| public class TenantAwareEntityTemplate { |
| |
| private final CassandraSessionProvider cassandraSessionProvider; |
| private final TenantAwareCassandraMapperProvider tenantAwareCassandraMapperProvider; |
| |
| public TenantAwareEntityTemplate(final CassandraSessionProvider cassandraSessionProvider, |
| final TenantAwareCassandraMapperProvider tenantAwareCassandraMapperProvider) { |
| super(); |
| this.cassandraSessionProvider = cassandraSessionProvider; |
| this.tenantAwareCassandraMapperProvider = tenantAwareCassandraMapperProvider; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> void save(final T entity) { |
| final Mapper<T> mapper = this.tenantAwareCassandraMapperProvider.getMapper((Class<T>) entity.getClass()); |
| mapper.save(entity); |
| } |
| |
| @Nonnull |
| public <T> Optional<T> findById(final Class<T> type, final Object... identifier) { |
| final Mapper<T> mapper = this.tenantAwareCassandraMapperProvider.getMapper(type); |
| return Optional.ofNullable(mapper.get(identifier)); |
| } |
| |
| |
| @Nonnull |
| public <T> List<T> fetchByKeys(final Class<T> type, final Object... keys) { |
| final Mapper<T> mapper = this.tenantAwareCassandraMapperProvider.getMapper(type); |
| final Statement query = mapper.getQuery(keys); |
| final ResultSet resultSet = this.cassandraSessionProvider.getTenantSession().execute(query); |
| return mapper.map(resultSet).all(); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> void delete(final T entity) { |
| final Mapper<T> mapper = this.tenantAwareCassandraMapperProvider.getMapper((Class<T>) entity.getClass()); |
| mapper.delete(entity); |
| } |
| } |