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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.syncui.util;

import org.duracloud.syncui.controller.ConfigurationController.UpdatePolicy;
import org.duracloud.syncui.service.SyncConfigurationManager;

/**
 * @author Daniel Bernstein
 */
public class UpdatePolicyHelper {

    private UpdatePolicyHelper() {
        // Ensures no instances are made of this class, as there are only static members.
    }

    public static void set(SyncConfigurationManager scm, UpdatePolicy up) {
        if (UpdatePolicy.NONE.equals(up)) {
            scm.setSyncUpdates(false);
            scm.setRenameUpdates(false);
        } else if (UpdatePolicy.PRESERVE.equals(up)) {
            scm.setSyncUpdates(true);
            scm.setRenameUpdates(true);
        } else if (UpdatePolicy.OVERWRITE.equals(up)) {
            scm.setSyncUpdates(true);
            scm.setRenameUpdates(false);
        } else {
            throw new IllegalArgumentException("unknown update policy: " + up);
        }
    }

    public static UpdatePolicy get(SyncConfigurationManager scm) {
        if (!scm.isSyncUpdates()) {
            return UpdatePolicy.NONE;
        } else {
            if (!scm.isRenameUpdates()) {
                return UpdatePolicy.OVERWRITE;
            } else {
                return UpdatePolicy.PRESERVE;
            }
        }
    }

}