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Contains common utility code, reusable outside Hudson.

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/**
 * The MIT License
 *
 * Copyright (c) 2010-2011 Sonatype, Inc. All rights reserved.
 *
 * 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 org.hudsonci.utils.io;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.Flushable;
import java.io.IOException;

/**
 * Quietly flushes {@link Flushable} objects.
 *
 * @author Jason Dillon
 * @since 2.1.0
 */
public class Flusher
{
    private static final Logger log = LoggerFactory.getLogger(Flusher.class);

    /**
     * @param targets objects to flush, null is permitted
     */
    public static void flush(final Flushable... targets) {
        if (targets != null) {
            for (Flushable f : targets) {
                if (f == null) {
                    continue;
                }

                try {
                    f.flush();
                }
                catch (IOException e) {
                    log.trace(e.getMessage(), e);
                }
            }
        }
    }
}