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TRAC D.A.P. common library, interfaces and utilities used across all TRAC components

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/*
 * Copyright 2023 Accenture Global Solutions Limited
 *
 * 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.finos.tracdap.common.util;

public class LoggingHelpers {

    public static String formatFileSize(long size) {

        if (size < 1024) {

            if (size == 0)
                return "0 bytes";
            else if (size == 1)
                return "1 byte";
            else
                return String.format("%d bytes", size);
        }

        if (size < 1024 * 1024) {
            var kb = ((double) size) / 1024.0;
            return String.format("%.1f KB", kb);
        }

        if (size < 1024 * 1024 * 1024) {
            var mb = ((double) size) / (1024.0 * 1024.0);
            return String.format("%.1f MB", mb);
        }

        var gb = ((double) size) / (1024.0 * 1024.0 * 1024.0);
        return String.format("%.1f GB", gb);
    }
}