org.eclipse.packager.rpm.deps.RpmDependencyFlags 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.deps;

import java.util.EnumSet;
import java.util.Set;

public enum RpmDependencyFlags
{
    LESS ( 1 ),
    GREATER ( 2 ),
    EQUAL ( 3 ),
    PREREQ ( 6 ),
    PRETRANS ( 7 ),
    INTERPRETER ( 8 ),
    SCRIPT_PRE ( 9 ),
    SCRIPT_POST ( 10 ),
    SCRIPT_PREUN ( 11 ),
    SCRIPT_POSTUN ( 12 ),
    SCRIPT_VERIFY ( 13 ),
    FIND_REQUIRES ( 14 ),
    FIND_PROVIDES ( 15 ),
    TRIGGER_IN ( 16 ),
    TRIGGER_UN ( 17 ),
    TRIGGER_POSTUN ( 18 ),
    MISSINGOK ( 19 ),
    RPMLIB ( 24 ),
    TRIGGER_PREIN ( 25 ),
    KEYRING ( 26 ),
    CONFIG ( 28 );

    private int value;

    private RpmDependencyFlags ( final int bit )
    {
        this.value = 1 << bit;
    }

    public static int encode ( final Set flags )
    {
        int value = 0;
        for ( final RpmDependencyFlags flag : flags )
        {
            value |= flag.value;
        }
        return value;
    }

    public static EnumSet parse ( final Long flags )
    {
        if ( flags == null )
        {
            return null;
        }

        return parse ( flags.intValue () );
    }

    public static EnumSet parse ( final int flags )
    {
        final EnumSet result = EnumSet.noneOf ( RpmDependencyFlags.class );

        for ( final RpmDependencyFlags f : values () )
        {
            if ( ( flags & f.value ) > 0 )
            {
                result.add ( f );
            }
        }

        return result;
    }
}