/*
 * MinIO Java SDK for Amazon S3 Compatible Cloud Storage, (C) 2015 MinIO, 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 io.minio.messages;

import java.time.ZonedDateTime;
import java.util.Map;
import org.simpleframework.xml.Element;
import org.simpleframework.xml.Root;

/**
 * Helper class to denote Object information in {@link ListBucketResult} and {@link
 * ListBucketResultV1}.
 */
@Root(name = "Contents", strict = false)
public class Item {
  @Element(name = "Key")
  private String objectName;

  @Element(name = "LastModified")
  private ResponseDate lastModified;

  @Element(name = "ETag")
  private String etag;

  @Element(name = "Size")
  private long size;

  @Element(name = "StorageClass")
  private String storageClass;

  @Element(name = "Owner")
  private Owner owner;

  @Element(name = "UserMetadata", required = false)
  private Metadata userMetadata;

  private boolean isDir = false;

  public Item() {}

  /** Constructs a new Item for prefix i.e. directory. */
  public Item(String prefix) {
    this.objectName = prefix;
    this.isDir = true;
  }

  /** Returns object name. */
  public String objectName() {
    return objectName;
  }

  /** Returns last modified time of the object. */
  public ZonedDateTime lastModified() {
    return lastModified.zonedDateTime();
  }

  /** Returns ETag of the object. */
  public String etag() {
    return etag;
  }

  /** Returns object size. */
  public long size() {
    return size;
  }

  /** Returns storage class of the object. */
  public String storageClass() {
    return storageClass;
  }

  /** Returns owner object of given the object. */
  public Owner owner() {
    return owner;
  }

  /** Returns user metadata. This is MinIO specific extension to ListObjectsV2. */
  public Map<String, String> userMetadata() {
    if (userMetadata == null) {
      return null;
    }

    return userMetadata.get();
  }

  /** Returns whether the object is a directory or not. */
  public boolean isDir() {
    return isDir;
  }
}

@@ -1291,16 +1291,34 @@
  %22Owner%22
+, required = false
 )%0A  priv

make owner field optional in Item class. (#921)