org.eclipse.packager.rpm.Architecture Maven / Gradle / Ivy

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/*
 * Copyright (c) 2015, 2019 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 */

package org.eclipse.packager.rpm;

import java.util.HashMap;
import java.util.Map;
import java.util.Optional;

public enum Architecture {
    NOARCH((short) 0, "noarch"),
    INTEL((short) 1, "athlon, geode, pentium3, pentium4, i386, i486, i586, i686, x86_64, amd64, ia32e, em64t"),
    ALPHA((short) 2, "alpha, alphaev5, alphaev56, alphapca56, alphaev6, alphaev67"),
    SPARC((short) 3, "sparc, sun4, sun4c, sun4d, sun4m, sparcv8, sparcv9, sparcv9v"),
    MIPS((short) 4, "mips"),
    PPC((short) 5, "ppc, ppc8260, ppc8560, ppc32dy4, ppciseries, ppcpseries"),
    M86K((short) 6, "m68k"),
    IP((short) 7, "sgi"),
    RS6000((short) 8, "rs6000"),
    IA64((short) 9, "ia64"),
    MIPSEL((short) 11, "mipsel"),
    ARM((short) 12, "armv3l, armv4b, armv4l, armv5tel, armv5tejl, armv6l, armv6hl, armv7l, armv7hl"),
    M86KMINT((short) 13, "m68kmint, atarist, atariste, ataritt, falcon, atariclone, milan, hades"),
    S390((short) 14, "s390, i370"),
    S390X((short) 15, "s390x"),
    PPC64((short) 16, "ppc64, ppc64iseries, ppc64pseries, ppc64p7"),
    SH((short) 17, "sh, sh3, sh4, sh4a"),
    XTENSA((short) 18, "xtensa"),
    AARCH64((short) 19, "aarch64");

    private static final Map MAP = new HashMap<>();

    private static final Map ALTMAP = new HashMap<>();

    static {
        for (final Architecture arch : Architecture.values()) {
            MAP.put((int) arch.value, arch);
            ALTMAP.put(arch.name().toLowerCase(), arch);
            for (final String alias : getAliases(arch).split(",\\s")) {
                ALTMAP.put(alias.toLowerCase(), arch);
            }
        }
    }

    private static String getAliases(final Architecture arch) {
        return System.getProperty(Architecture.class.getPackage().getName() + ".arch." + arch.name(), arch.aliases);
    }

    private final short value;

    private final String aliases;

    Architecture(final short value, final String aliases) {
        this.value = value;
        this.aliases = aliases;
    }

    public short getValue() {
        return this.value;
    }

    public static Optional fromValue(final int value) {
        return Optional.ofNullable(MAP.get(value));
    }

    public static Optional fromAlias(final String alias) {
        if (alias == null) {
            return Optional.empty();
        }

        return Optional.ofNullable(ALTMAP.get(alias.toLowerCase()));
    }
}