tajo-storage/tajo-storage-s3/src/main/java/org/apache/tajo/storage/s3/TajoS3Constants.java

/**
 * 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.tajo.storage.s3;

/**
 * Borrow from org.apache.hadoop.fs.s3a.TajoS3Constants.
 *
 */
public class TajoS3Constants {
  // s3 access key
  public static final String ACCESS_KEY = "fs.s3a.access.key";

  // s3 secret key
  public static final String SECRET_KEY = "fs.s3a.secret.key";

  //use a custom endpoint?
  public static final String ENDPOINT = "fs.s3a.endpoint";

  // number of times we should retry errors
  public static final String MAX_ERROR_RETRIES = "fs.s3a.attempts.maximum";
  public static final int DEFAULT_MAX_ERROR_RETRIES = 10;

  // connect to s3 over ssl?
  public static final String SECURE_CONNECTIONS = "fs.s3a.connection.ssl.enabled";
  public static final boolean DEFAULT_SECURE_CONNECTIONS = true;

  // seconds until we give up trying to establish a connection to s3
  public static final String ESTABLISH_TIMEOUT = "fs.s3a.connection.establish.timeout";
  public static final int DEFAULT_ESTABLISH_TIMEOUT = 50000;

  // seconds until we give up on a connection to s3
  public static final String SOCKET_TIMEOUT = "fs.s3a.connection.timeout";
  public static final int DEFAULT_SOCKET_TIMEOUT = 50000;

  // number of simultaneous connections to s3
  public static final String MAXIMUM_CONNECTIONS = "fs.s3a.connection.maximum";
  public static final int DEFAULT_MAXIMUM_CONNECTIONS = 15;

  // number of records to get while paging through a directory listing
  public static final String MAX_PAGING_KEYS = "fs.s3a.paging.maximum";
  public static final int DEFAULT_MAX_PAGING_KEYS = 5000;

  public static final String S3N_FOLDER_SUFFIX = "_$folder$";

  //connect to s3 through a proxy server?
  public static final String PROXY_HOST = "fs.s3a.proxy.host";
  public static final String PROXY_PORT = "fs.s3a.proxy.port";
  public static final String PROXY_USERNAME = "fs.s3a.proxy.username";
  public static final String PROXY_PASSWORD = "fs.s3a.proxy.password";
  public static final String PROXY_DOMAIN = "fs.s3a.proxy.domain";
  public static final String PROXY_WORKSTATION = "fs.s3a.proxy.workstation";

}