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

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

import com.google.api.gax.paging.Page;
import com.google.cloud.storage.Blob;
import java.util.Iterator;

/**
 * Iterator class for ObjectSummary objects on GCS objects. Returns platform-independent instances
 * (StorageObjectSummary)
 *
 * @author ppaulus
 */
public class GcsObjectSummariesIterator implements Iterator {
  private final Iterator blobIterator;

  public GcsObjectSummariesIterator(Page blobs) {
    this.blobIterator = blobs.iterateAll().iterator();
  }

  @Override
  public boolean hasNext() {
    return this.blobIterator.hasNext();
  }

  @Override
  public StorageObjectSummary next() {
    Blob blob = this.blobIterator.next();
    return StorageObjectSummary.createFromGcsBlob(blob);
  }
}