AttributesUtils.java

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/* *********************************************************************** *
 * project: org.matsim.*
 * AttributesUtils.java
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2019 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */

 package org.matsim.utils.objectattributes.attributable;

public class AttributesUtils {
    public static final String ATTRIBUTES = "attributes";
    public static final String ATTRIBUTE = "attribute";

    public static void copyTo( Attributes from , Attributes to ) {
        for (var entry : from.getAsMap().entrySet()) {
            to.putAttribute(entry.getKey(), entry.getValue());
        }
    }

    public static void copyToExcept(Attributes from, Attributes to, String exceptAttribute) {
        for (var entry : from.getAsMap().entrySet()) {
            String key = entry.getKey();
            if (!key.equals(exceptAttribute)) {
                to.putAttribute(key, entry.getValue());
            }
        }
    }

    public static <T extends Attributable> void copyAttributesFromTo( T from , T to ) {
        copyTo( from.getAttributes() , to.getAttributes() );
    }

    public static <T extends Attributable> void copyAttributesFromToExcept(T from, T to, String exceptAttribute) {
        copyToExcept(from.getAttributes(), to.getAttributes(), exceptAttribute);
    }

    @Deprecated
    public static boolean isEmpty(Attributes attributes) {
        return attributes.size() == 0;
    }
}