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Merge pull request #697 from MrCreosote/develop
Add a MetadataUpdate class in preparation for batch object updates
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Original file line number | Diff line number | Diff line change |
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package us.kbase.workspace.database; | ||
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import static us.kbase.workspace.database.Util.noNulls; | ||
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import java.util.Collection; | ||
import java.util.Collections; | ||
import java.util.HashSet; | ||
import java.util.Objects; | ||
import java.util.Optional; | ||
import java.util.Set; | ||
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/** An update to a a set of metadata, including keys to add or replace and keys to remove. */ | ||
public class MetadataUpdate { | ||
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private final WorkspaceUserMetadata meta; | ||
private final Set<String> remove; | ||
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/** Create the update. | ||
* @param meta keys to add to or replace in the target metadata. | ||
* @param toRemove keys to remove from the target metadata. | ||
*/ | ||
public MetadataUpdate(final WorkspaceUserMetadata meta, final Collection<String> toRemove) { | ||
this.meta = meta == null || meta.isEmpty() ? null : meta; | ||
if (toRemove != null && !toRemove.isEmpty()) { | ||
this.remove = Collections.unmodifiableSet(new HashSet<>( | ||
noNulls( | ||
toRemove, | ||
"null metadata keys are not allowed in the remove parameter" | ||
) | ||
)); | ||
} else { | ||
this.remove = null; | ||
} | ||
} | ||
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/** Get the keys to add or replace in the target metadata. | ||
* @return the keys. | ||
*/ | ||
public Optional<WorkspaceUserMetadata> getMeta() { | ||
return Optional.ofNullable(meta); | ||
} | ||
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/** Get the keys to remove from the target metadata. | ||
* @return | ||
*/ | ||
public Optional<Set<String>> getToRemove() { | ||
return Optional.ofNullable(remove); | ||
} | ||
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/** Return whether this metadata update has an update. | ||
* @return true if there are keys to add, replace, or remove in this update. | ||
*/ | ||
public boolean hasUpdate() { | ||
return meta != null || remove != null; | ||
} | ||
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@Override | ||
public int hashCode() { | ||
return Objects.hash(meta, remove); | ||
} | ||
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@Override | ||
public boolean equals(Object obj) { | ||
if (this == obj) { | ||
return true; | ||
} | ||
if (obj == null) { | ||
return false; | ||
} | ||
if (getClass() != obj.getClass()) { | ||
return false; | ||
} | ||
MetadataUpdate other = (MetadataUpdate) obj; | ||
return Objects.equals(meta, other.meta) && Objects.equals(remove, other.remove); | ||
} | ||
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} |
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