core/api/src/main/java/org/onosproject/ui/table/cell/HexLongFormatter.java

/*
 *  Copyright 2016 Open Networking Laboratory
 *
 *  Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.onosproject.ui.table.cell;

import org.onosproject.ui.table.CellFormatter;

/**
 * Formats long values as hex strings with a "0x" prefix.
 */
public final class HexLongFormatter extends AbstractCellFormatter {

    // non-instantiable
    private HexLongFormatter() { }

    @Override
    protected String nonNullFormat(Object value) {
        return "0x" + Long.toHexString((Long) value);
    }

    /**
     * An instance of this class.
     */
    public static final CellFormatter INSTANCE = new HexLongFormatter();
}