DMDirc-Plugins/ui_swing/src/main/java/com/dmdirc/addons/ui_swing/SwingPreconditions.java

/*
 * Copyright (c) 2006-2017 DMDirc Developers
 *
 * 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 NONINFRINGEMENT. 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 com.dmdirc.addons.ui_swing;

import com.google.common.base.Preconditions;

import javax.swing.SwingUtilities;

/**
 * Swing-specific preconditions.
 */
public final class SwingPreconditions {

    private SwingPreconditions() {
        // Shouldn't be instansiated.
    }

    /**
     * Checks that the method is called on the Swing EDT.
     *
     * @throws IllegalStateException if the method is called from another thread.
     */
    public static void checkOnEDT() {
        Preconditions.checkState(SwingUtilities.isEventDispatchThread(),
                "Must be called on the event despatch thread");
    }

    /**
     * Checks that the method is NOT called on the Swing EDT.
     *
     * @throws IllegalStateException if the method is called from the EDT.
     */
    public static void checkNotOnEDT() {
        Preconditions.checkState(!SwingUtilities.isEventDispatchThread(),
                "Must not be called ont he event despatch thread");
    }

}