/*

 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package jdk.jfr.internal.settings;

import java.util.Set;

/**

 * Helper class for settings that use boolean numbers

 *

 */

final class BooleanValue  {

    private String value = "false";

    private boolean booleanValue;

    private BooleanValue(boolean b) {

        booleanValue = b;

        value = b ? "true" : "false";

    }

    public String union(Set<String> values) {

        for (String v : values) {

            if ("true".equals(v)) {

                return "true";

            }

        }

        return "false";

    }

    public void setValue(String value) {

        this.value = value;

        this.booleanValue = Boolean.valueOf(value);

    }

    public final String getValue() {

        return this.value;

    }

    public boolean getBoolean() {

        return booleanValue;

    }

    public static BooleanValue valueOf(String defaultValue) {

        if ("true".equals(defaultValue)) {

            return new BooleanValue(true);

        }

        if ("false".equals(defaultValue)) {

            return new BooleanValue(false);

        }

        throw new InternalError("Unknown default value for settings '" + defaultValue + "'");

    }

}