src/main/java/io/mifos/core/lang/AutoTenantContext.java

/*
 * Copyright 2018 The Apache Software Foundation
 *
 * 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 io.mifos.core.lang;

import java.util.Optional;

/**
 * @author Myrle Krantz
 */
@SuppressWarnings({"OptionalUsedAsFieldOrParameterType", "WeakerAccess", "unused"})
public class AutoTenantContext implements AutoCloseable {
  private final Optional<String> previousIdentifier;

  public AutoTenantContext(final String tenantName)
  {
    previousIdentifier = TenantContextHolder.identifier();
    TenantContextHolder.clear();
    TenantContextHolder.setIdentifier(tenantName);
  }

  public AutoTenantContext()
  {
    previousIdentifier = TenantContextHolder.identifier();
    TenantContextHolder.clear();
  }

  @Override public void close() {
    TenantContextHolder.clear();
    previousIdentifier.ifPresent(TenantContextHolder::setIdentifier);
  }
}