AttributesBlob.java

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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package org.dcm4chee.archive.entity;

import java.io.Serializable;

import javax.persistence.Access;
import javax.persistence.AccessType;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;

import org.dcm4che3.data.Attributes;

/**
 * @author Umberto Cappellini <umberto.cappellini@agfa.com>
 */
@Entity
@Table(name = "dicomattrs")
public class AttributesBlob implements Serializable {

    private static final long serialVersionUID = 559808958147016008L;

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column(name = "pk")
    private long pk;
    
    @Transient
    private Attributes cachedAttributes; 
    
    public long getPk() {
        return pk;
    }

    public AttributesBlob(Attributes attrs) {
        setAttributes(attrs);
    }
    
    public AttributesBlob() {
        setAttributes(new Attributes());
    }
    
    public boolean equals(AttributesBlob other) {
        return other != null && other.pk == pk;
    }
    
    @Override
    public String toString() {
        return "BLOB[pk=" + pk + "]";
    }
    
    public Attributes getAttributes() throws BlobCorruptedException {
        return cachedAttributes;
    }

    public void setAttributes(Attributes attrs) {
        cachedAttributes = attrs;
    }

    @Basic(optional = false)
    @Column(name = "attrs")
    @Access(AccessType.PROPERTY)
    public byte[] getEncodedAttributes() {
        return Utils.encodeAttributes(cachedAttributes);
    }
    
    public void setEncodedAttributes(byte[] atts) {
        cachedAttributes = Utils.decodeAttributes(atts);
    }
    
}