package org.vertexium.accumulo;
import org.vertexium.Metadata;
import org.vertexium.VertexiumException;
import org.vertexium.VertexiumSerializer;
import org.vertexium.Visibility;
import org.vertexium.id.NameSubstitutionStrategy;
import java.util.HashMap;
import java.util.Map;
public class LazyPropertyMetadata {
private Map<String, Entry> entries = new HashMap<>();
public Metadata toMetadata(VertexiumSerializer vertexiumSerializer, NameSubstitutionStrategy nameSubstitutionStrategy) {
Metadata metadata = new Metadata();
for (Map.Entry<String, Entry> metadataItem : this.entries.entrySet()) {
String metadataKey = nameSubstitutionStrategy.inflate(metadataItem.getValue().getMetadataKey());
Visibility metadataVisibility = metadataItem.getValue().getMetadataVisibility();
Object metadataValue = vertexiumSerializer.bytesToObject(metadataItem.getValue().getValue());
if (metadataValue == null) {
throw new VertexiumException("Invalid metadata found.");
}
metadata.add(metadataKey, metadataValue, metadataVisibility);
}
return metadata;
}
public void add(String metadataKey, Visibility metadataVisibility, byte[] value) {
this.entries.put(metadataKey.concat(metadataVisibility.getVisibilityString()), new Entry(metadataKey, metadataVisibility, value));
}
private static class Entry {
private final String metadataKey;
private final Visibility metadataVisibility;
private final byte[] value;
public Entry(String metadataKey, Visibility metadataVisibility, byte[] value) {
this.metadataKey = metadataKey;
this.metadataVisibility = metadataVisibility;
this.value = value;
}
public String getMetadataKey() {
return metadataKey;
}
public Visibility getMetadataVisibility() {
return metadataVisibility;
}
public byte[] getValue() {
return value;
}
}
}