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/*
 * Copyright (C) 2007 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.facebook.presto.jdbc.internal.guava.io;

import com.facebook.presto.jdbc.internal.guava.annotations.Beta;
import com.facebook.presto.jdbc.internal.guava.annotations.GwtIncompatible;
import java.io.Flushable;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Utility methods for working with {@link Flushable} objects.
 *
 * @author Michael Lancaster
 * @since 1.0
 */
@Beta
@GwtIncompatible
public final class Flushables {
  private static final Logger logger = Logger.getLogger(Flushables.class.getName());

  private Flushables() {}

  /**
   * Flush a {@link Flushable}, with control over whether an {@code IOException} may be thrown.
   *
   * 

If {@code swallowIOException} is true, then we don't rethrow {@code IOException}, but merely * log it. * * @param flushable the {@code Flushable} object to be flushed. * @param swallowIOException if true, don't propagate IO exceptions thrown by the {@code flush} * method * @throws IOException if {@code swallowIOException} is false and {@link Flushable#flush} throws * an {@code IOException}. * @see Closeables#close */ public static void flush(Flushable flushable, boolean swallowIOException) throws IOException { try { flushable.flush(); } catch (IOException e) { if (swallowIOException) { logger.log(Level.WARNING, "IOException thrown while flushing Flushable.", e); } else { throw e; } } } /** * Equivalent to calling {@code flush(flushable, true)}, but with no {@code IOException} in the * signature. * * @param flushable the {@code Flushable} object to be flushed. */ public static void flushQuietly(Flushable flushable) { try { flush(flushable, true); } catch (IOException e) { logger.log(Level.SEVERE, "IOException should not have been thrown.", e); } } }





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