| /* |
| * 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.google.common.io; |
| |
| import com.google.common.annotations.Beta; |
| import com.google.common.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. |
| * |
| * <p>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); |
| } |
| } |
| } |