DefaultStorageLinkItem.java

/**
 * Copyright (c) 2008-2011 Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://www.sonatype.com/products/nexus/attributions.
 *
 * This program is free software: you can redistribute it and/or modify it only under the terms of the GNU Affero General
 * Public License Version 3 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License Version 3
 * for more details.
 *
 * You should have received a copy of the GNU Affero General Public License Version 3 along with this program.  If not, see
 * http://www.gnu.org/licenses.
 *
 * Sonatype Nexus (TM) Open Source Version is available from Sonatype, Inc. Sonatype and Sonatype Nexus are trademarks of
 * Sonatype, Inc. Apache Maven is a trademark of the Apache Foundation. M2Eclipse is a trademark of the Eclipse Foundation.
 * All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.proxy.item;

import org.sonatype.nexus.proxy.ResourceStoreRequest;
import org.sonatype.nexus.proxy.repository.Repository;
import org.sonatype.nexus.proxy.router.RepositoryRouter;

/**
 * The Class DefaultStorageLinkItem.
 */
public class DefaultStorageLinkItem
    extends AbstractStorageItem
    implements StorageLinkItem
{

    /** The Constant serialVersionUID. */
    private static final long serialVersionUID = 4494595788515460394L;

    /** The target. */
    private transient RepositoryItemUid targetUid;

    /**
     * Instantiates a new default storage link item.
     * 
     * @param repository the repository
     * @param path the path
     * @param canRead the can read
     * @param canWrite the can write
     * @param targetUid the target uid
     */
    public DefaultStorageLinkItem( Repository repository, ResourceStoreRequest request, boolean canRead,
        boolean canWrite, RepositoryItemUid targetUid )
    {
        super( repository, request, canRead, canWrite );

        setTarget( targetUid );
    }

    /**
     * Shortcut method.
     * 
     * @param repository
     * @param path
     * @param canRead
     * @param canWrite
     * @param targetUid
     * @deprecated supply resourceStoreRequest always
     */
    public DefaultStorageLinkItem( Repository repository, String path, boolean canRead, boolean canWrite,
        RepositoryItemUid targetUid )
    {
        this( repository, new ResourceStoreRequest( path, true, false ), canRead, canWrite, targetUid );
    }

    /**
     * Instantiates a new default storage link item.
     * 
     * @param router the router
     * @param path the path
     * @param canRead the can read
     * @param canWrite the can write
     * @param targetUid the target uid
     */
    public DefaultStorageLinkItem( RepositoryRouter router, ResourceStoreRequest request, boolean canRead,
        boolean canWrite, RepositoryItemUid targetUid )
    {
        super( router, request, canRead, canWrite );

        setTarget( targetUid );
    }

    public RepositoryItemUid getTarget()
    {
        return targetUid;
    }

    public void setTarget( RepositoryItemUid target )
    {
        this.targetUid = target;
    }

    public void overlay( StorageItem item )
        throws IllegalArgumentException
    {
        super.overlay( item );

        StorageLinkItem otherLink = (StorageLinkItem) item;

        if ( otherLink.getTarget() != null )
        {
            setTarget( otherLink.getTarget() );
        }
    }

}