net.snowflake.client.jdbc.cloud.storage.S3ObjectMetadata Maven / Gradle / Ivy

/*
 * Copyright (c) 2012-2019 Snowflake Computing Inc. All rights reserved.
 */
package net.snowflake.client.jdbc.cloud.storage;

import com.amazonaws.services.s3.model.ObjectMetadata;

import java.util.Map;

/**
 * s3 implementation of platform independent StorageObjectMetadata interface,
 * wraps an S3 ObjectMetadata class
 * 
 * It only supports a limited set of metadata properties
 * currrently used by the JDBC client
 *
 * @author lgiakoumakis
 **/
public class S3ObjectMetadata implements StorageObjectMetadata
{
  private ObjectMetadata objectMetadata;

  S3ObjectMetadata()
  {
    objectMetadata = new ObjectMetadata();
  }

  //Construct from an AWS S3 ObjectMetadata object
  S3ObjectMetadata(ObjectMetadata meta)
  {
    objectMetadata = meta;
  }

  @Override
  public Map getUserMetadata()
  {
    return objectMetadata.getUserMetadata();
  }

  @Override
  public long getContentLength()
  {
    return objectMetadata.getContentLength();
  }

  @Override
  public void setContentLength(long contentLength)
  {
    objectMetadata.setContentLength(contentLength);
  }

  @Override
  public void addUserMetadata(String key, String value)
  {
    objectMetadata.addUserMetadata(key, value);
  }

  @Override
  public void setContentEncoding(String encoding)
  {
    objectMetadata.setContentEncoding(encoding);
  }

  @Override
  public String getContentEncoding()
  {
    return objectMetadata.getContentEncoding();
  }

  /**
   * @return Returns the encapsulated AWS S3 metadata object
   */
  ObjectMetadata getS3ObjectMetadata()
  {
    return objectMetadata;
  }

}