package co.codewizards.cloudstore.local.persistence;

import java.util.HashSet;
import java.util.Set;

import javax.jdo.annotations.Discriminator;
import javax.jdo.annotations.DiscriminatorStrategy;
import javax.jdo.annotations.Inheritance;
import javax.jdo.annotations.InheritanceStrategy;
import javax.jdo.annotations.Join;
import javax.jdo.annotations.NullValue;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;

/**
 * A {@code LocalRepository} represents the local repository inside the repository's database.
 * <p>
 * There is exactly one {@code LocalRepository} instance in the database.
 * @author Marco หงุ่ยตระกูล-Schulze - marco at codewizards dot co
 */
@PersistenceCapable
@Inheritance(strategy=InheritanceStrategy.SUPERCLASS_TABLE)
@Discriminator(strategy=DiscriminatorStrategy.VALUE_MAP, value="LocalRepository")
public class LocalRepository extends Repository {

        @Persistent(nullValue=NullValue.EXCEPTION)
        private Directory root;

        @Persistent(nullValue=NullValue.EXCEPTION)
        private byte[] privateKey;

        @Join
        private Set<String> aliases;

        public LocalRepository() { }

        /**
         * Get the root directory of this repository.
         * @return the root directory of this repository. Never <code>null</code> in persistence.
         */
        public Directory getRoot() {
                return root;
        }
        public void setRoot(Directory root) {
                this.root = root;
        }

        public byte[] getPrivateKey() {
                return privateKey;
        }

        public void setPrivateKey(byte[] privateKey) {
                this.privateKey = privateKey;
        }

        public Set<String> getAliases() {
                if (aliases == null)
                        aliases = new HashSet<>();

                return aliases;
        }
}