CredentialsCassandraDao.java

/**
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * 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.
 */

package org.kaaproject.kaa.server.common.nosql.cassandra.dao;

import static com.datastax.driver.core.querybuilder.QueryBuilder.delete;
import static com.datastax.driver.core.querybuilder.QueryBuilder.eq;
import static com.datastax.driver.core.querybuilder.QueryBuilder.select;
import static com.datastax.driver.core.querybuilder.QueryBuilder.set;
import static com.datastax.driver.core.querybuilder.QueryBuilder.update;
import static org.kaaproject.kaa.server.common.nosql.cassandra.dao.model.CassandraModelConstants.CREDENTIALS_APPLICATION_ID_PROPERTY;
import static org.kaaproject.kaa.server.common.nosql.cassandra.dao.model.CassandraModelConstants.CREDENTIALS_COLUMN_FAMILY_NAME;
import static org.kaaproject.kaa.server.common.nosql.cassandra.dao.model.CassandraModelConstants.CREDENTIALS_ID_PROPERTY;
import static org.kaaproject.kaa.server.common.nosql.cassandra.dao.model.CassandraModelConstants.CREDENTIALS_STATUS_PROPERTY;

import com.datastax.driver.core.querybuilder.Delete;
import com.datastax.driver.core.querybuilder.Select;
import com.datastax.driver.core.querybuilder.Update;

import org.kaaproject.kaa.common.dto.credentials.CredentialsDto;
import org.kaaproject.kaa.common.dto.credentials.CredentialsStatus;
import org.kaaproject.kaa.server.common.dao.impl.CredentialsDao;
import org.kaaproject.kaa.server.common.nosql.cassandra.dao.model.CassandraCredentials;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Repository;

import java.nio.ByteBuffer;
import java.util.Optional;

@Repository
public class CredentialsCassandraDao
    extends AbstractCassandraDao<CassandraCredentials, ByteBuffer>
    implements CredentialsDao<CassandraCredentials> {

  private static final Logger LOG = LoggerFactory.getLogger(CredentialsCassandraDao.class);

  @Override
  protected Class<CassandraCredentials> getColumnFamilyClass() {
    return CassandraCredentials.class;
  }

  @Override
  protected String getColumnFamilyName() {
    return CREDENTIALS_COLUMN_FAMILY_NAME;
  }

  @Override
  public CassandraCredentials save(String applicationId, CredentialsDto credentials) {
    LOG.debug("Saving {}", credentials.toString());
    return save(new CassandraCredentials(applicationId, credentials));
  }

  @Override
  public Optional<CassandraCredentials> find(String applicationId, String credentialsId) {
    LOG.debug("Searching credential by applicationID[{}] and credentialsID[{}]",
        applicationId, credentialsId);
    Select.Where query = select().from(getColumnFamilyName())
        .where(eq(CREDENTIALS_APPLICATION_ID_PROPERTY, applicationId))
        .and(eq(CREDENTIALS_ID_PROPERTY, credentialsId));
    return Optional.ofNullable(this.findOneByStatement(query));
  }

  @Override
  public Optional<CassandraCredentials> updateStatus(String applicationId,
                                                     String credentialsId,
                                                     CredentialsStatus status) {
    LOG.debug("Updating credentials status with applicationID[{}] "
            + "and credentialsID[{}] to STATUS[{}]",
        applicationId, credentialsId, status.toString());
    Update.Assignments query = update(getColumnFamilyName())
        .where(eq(CREDENTIALS_ID_PROPERTY, credentialsId))
        .and(eq(CREDENTIALS_APPLICATION_ID_PROPERTY, applicationId))
        .with(set(CREDENTIALS_STATUS_PROPERTY, status.toString()));
    execute(query);
    return find(applicationId, credentialsId);
  }

  @Override
  public void remove(String applicationId, String credentialsId) {
    LOG.debug("Deleting credential by applicationID[{}] and credentialsID[{}]",
        applicationId, credentialsId);
    Delete.Where query = delete().from(getColumnFamilyName())
        .where(eq(CREDENTIALS_ID_PROPERTY, credentialsId))
        .and(eq(CREDENTIALS_APPLICATION_ID_PROPERTY, applicationId));
    execute(query);
  }
}