org.eolang.parser.BytesToHex Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of eo-parser Show documentation
EO-to-XML Parser
The newest version!
/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2024 Objectionary.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.eolang.parser;

import java.util.Arrays;
import java.util.StringJoiner;
import java.util.function.Supplier;

/**
 * Bytes to hex converter.
 *
 * @since 0.44
 */
final class BytesToHex implements Supplier {

    /**
     * The bytes.
     */
    private final byte[] bytes;

    /**
     * Ctor.
     * @param bts Bytes
     */
    BytesToHex(final byte[] bts) {
        this.bytes = Arrays.copyOf(bts, bts.length);
    }

    @Override
    public String get() {
        final String hex;
        if (this.bytes.length == 0) {
            hex = "--";
        } else {
            final StringJoiner out = new StringJoiner("-");
            for (final byte bty : this.bytes) {
                out.add(String.format("%02X", bty));
            }
            if (this.bytes.length == 1) {
                out.add("");
            }
            hex = out.toString();
        }
        return hex;
    }
}