content: /*
   * 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 org.apache.bookkeeper.clients;
  
  import static com.google.common.base.Preconditions.checkArgument;
  import static com.google.common.base.Preconditions.checkNotNull;
  import static org.apache.bookkeeper.stream.protocol.util.ProtoUtils.validateNamespaceName;
  
  import java.util.function.Supplier;
  import org.apache.bookkeeper.api.StorageClient;
  import org.apache.bookkeeper.clients.admin.SimpleStorageAdminClientImpl;
  import org.apache.bookkeeper.clients.admin.StorageAdminClient;
  import org.apache.bookkeeper.clients.admin.StorageAdminClientImpl;
  import org.apache.bookkeeper.clients.config.StorageClientSettings;
  import org.apache.bookkeeper.clients.utils.ClientResources;
  
  /**
   * Builder to build a {@link StorageClient} client.
   */
  public class StorageClientBuilder implements Supplier<StorageClient> {
  
      private StorageClientSettings settings = null;
      private String namespaceName = null;
  
      /**
       * Create a builder to build {@link StorageClient} clients.
       *
       * @return StorageClient builder
       */
      public static StorageClientBuilder newBuilder() {
          return new StorageClientBuilder();
      }
  
      private StorageClientBuilder() {
      }
  
      /**
       * Configure the client with {@link StorageClientSettings}.
       *
       * @param settings stream withSettings
       * @return stream client builder
       */
      public StorageClientBuilder withSettings(StorageClientSettings settings) {
          this.settings = settings;
          return this;
      }
  
      /**
       * Configure the namespace that the client will interact with.
       *
       * <p>The namespace name will be used for building the stream client for interacting with streams
       * within the namespace.
       *
       * @param colName collection name
       * @return stream client builder.
       * @see #build()
       */
      public StorageClientBuilder withNamespace(String colName) {
          this.namespaceName = colName;
          return this;
      }
  
      /**
       * Build a {@link StorageClient} client.
       *
       * @return a {@link StorageClient} client.
       */
      public StorageClient build() {
          checkNotNull(settings, "Stream settings is null");
          checkArgument(validateNamespaceName(namespaceName), "Namespace name '" + namespaceName + "'is invalid");
  
          if (settings.enableServerSideRouting()) {
              return new SimpleStorageClientImpl(namespaceName, settings);
          } else {
              return new StorageClientImpl(
                  namespaceName,
                  settings,
                  ClientResources.create());
          }
      }
  
      /**
       * Build a {@link StorageAdminClient} client.
       *
       * @return a {@link StorageAdminClient} client.
       */
      public StorageAdminClient buildAdmin() {
          checkNotNull(settings, "Storage client settings is null");
  
          if (settings.enableServerSideRouting()) {
              return new SimpleStorageAdminClientImpl(settings);
          } else {
              return new StorageAdminClientImpl(settings, ClientResources.create());
          }
      }
  
      @Override
      public StorageClient get() {
          return build();
      }
  }
  