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/*
 * The contents of this file are subject to the license and copyright
 * detailed in the LICENSE and NOTICE files at the root of the source
 * tree and available online at
 *
 *     http://duracloud.org/license/
 */
package org.duracloud.mill.db.model;

import javax.persistence.Access;
import javax.persistence.AccessType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;

import org.apache.commons.codec.digest.DigestUtils;

/**
 * @author Daniel Bernstein
 * Date: Sep 2, 2014
 */
@Entity
@Table(name = "manifest_item",
       uniqueConstraints = @UniqueConstraint(columnNames = {"uniqueKey"}))
public class ManifestItem extends BaseEntity {
    @Column(nullable = false)
    private String account;
    @Column(nullable = false)
    private String storeId;
    @Column(nullable = false)
    private String spaceId;
    @Column(nullable = false, length = 1024)
    private String contentId;
    @Column(nullable = false)
    private String contentChecksum;
    @Column(nullable = false)
    private String contentSize;
    @Column(nullable = false)
    private String contentMimetype;

    /**
     * When a content item exists in the manifest but does not exist in
     * the storage provider it is possible that a delete audit event has been
     * generated but has not yet been processed. In this case, the problem will
     * resolve itself. However, it is also possible that the item was deleted
     * directly on the storage provider and thus the inconsistency will not
     * resolve itself.
     *
     * Thus the missingFromStorageProvider field is used by the bit integrity space listing verification
     * process to indicate a suspected problem. If the space listing verification encounters
     * an item in the manifest that is not in the storage provider AND the missingFromStorageProvider is
     * set to true, an error will be logged.
     */
    private boolean missingFromStorageProvider = false;

    private boolean deleted = false;

    private String uniqueKey;

    public String getAccount() {
        return account;
    }

    public void setAccount(String account) {
        this.account = account;
    }

    public String getStoreId() {
        return storeId;
    }

    public void setStoreId(String storeId) {
        this.storeId = storeId;
    }

    public String getSpaceId() {
        return spaceId;
    }

    public void setSpaceId(String spaceId) {
        this.spaceId = spaceId;
    }

    public String getContentId() {
        return contentId;
    }

    public void setContentId(String contentId) {
        this.contentId = contentId;
    }

    public String getContentChecksum() {
        return contentChecksum;
    }

    public void setContentChecksum(String contentChecksum) {
        this.contentChecksum = contentChecksum;
    }

    @Access(AccessType.PROPERTY)
    @Column(columnDefinition = "char(32) NOT NULL")
    public String getUniqueKey() {
        if (uniqueKey == null) {
            this.uniqueKey = DigestUtils.md5Hex(this.account + "/" +
                                                this.storeId + "/" +
                                                this.spaceId + "/" +
                                                this.contentId);
        }
        return uniqueKey;
    }

    public void setUniqueKey(String uniqueKey) {
        this.uniqueKey = uniqueKey;
    }

    public boolean isDeleted() {
        return deleted;
    }

    public void setDeleted(boolean deleted) {
        this.deleted = deleted;
    }

    public String getContentMimetype() {
        return contentMimetype;
    }

    public void setContentMimetype(String contentMimetype) {
        this.contentMimetype = contentMimetype;
    }

    public String getContentSize() {
        return contentSize;
    }

    public void setContentSize(String contentSize) {
        this.contentSize = contentSize;
    }

    public boolean isMissingFromStorageProvider() {
        return missingFromStorageProvider;
    }

    public void setMissingFromStorageProvider(boolean missingFromStorageProvider) {
        this.missingFromStorageProvider = missingFromStorageProvider;
    }
}