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 * Copyright (c) 2002, 2019, 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 com.sun.tools.javac.jvm;

import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Options;
import java.util.EnumSet;
import java.util.Set;

import static com.sun.tools.javac.main.Option.PROFILE;

The target profile.
 
This is NOT part of any supported API.
 If you write code that depends on this, you do so at your own risk.
 This code and its internal interfaces are subject to change or
 deletion without notice.
/** The target profile.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */
public enum Profile {
    COMPACT1("compact1", 1, Target.JDK1_8, Target.JDK1_9, Target.JDK1_10, Target.JDK1_11, Target.JDK1_12, Target.JDK1_13, Target.JDK1_14),
    COMPACT2("compact2", 2, Target.JDK1_8, Target.JDK1_9, Target.JDK1_10, Target.JDK1_11, Target.JDK1_12, Target.JDK1_13, Target.JDK1_14),
    COMPACT3("compact3", 3, Target.JDK1_8, Target.JDK1_9, Target.JDK1_10, Target.JDK1_11, Target.JDK1_12, Target.JDK1_13, Target.JDK1_14),

    DEFAULT {
        @Override
        public boolean isValid(Target t) {
            return true;
        }
    };

    private static final Context.Key<Profile> profileKey = new Context.Key<>();

    public static Profile instance(Context context) {
        Profile instance = context.get(profileKey);
        if (instance == null) {
            Options options = Options.instance(context);
            String profileString = options.get(PROFILE);
            if (profileString != null) instance = lookup(profileString);
            if (instance == null) instance = DEFAULT;
            context.put(profileKey, instance);
        }
        return instance;
    }

    public final String name;
    public final int value;
    final Set<Target> targets;

    Profile() {
        name = null;
        value = Integer.MAX_VALUE;
        targets = null;
    }

    Profile(String name, int value, Target t, Target... targets) {
        this.name = name;
        this.value = value;
        this.targets = EnumSet.of(t, targets);
    }

    public static Profile lookup(String name) {
        // the set of values is small enough to do linear search
        for (Profile p: values()) {
            if (name.equals(p.name))
                return p;
        }
        return null;
    }

    public static Profile lookup(int value) {
        // the set of values is small enough to do linear search
        for (Profile p: values()) {
            if (value == p.value)
                return p;
        }
        return null;
    }

    public boolean isValid(Target t) {
        return targets.contains(t);
    }
}