| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.ambari.server.utils; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Utilities for closing @{link Closeable}s. |
| * |
| * @see com.google.common.io.Closeables |
| */ |
| public final class Closeables { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(Closeables.class); |
| |
| /** |
| * Closes <code>c</code> ignoring any <code>IOException</code>s. |
| */ |
| public static void closeSilently(Closeable c) { |
| close(c, null); |
| } |
| |
| /** |
| * Closes <code>c</code> logging any <code>IOException</code> as warning via this class' logger. |
| */ |
| public static void closeLoggingExceptions(Closeable c) { |
| closeLoggingExceptions(c, LOGGER); |
| } |
| |
| /** |
| * Closes <code>c</code> logging any <code>IOException</code> via the specified <code>logger</code>. |
| */ |
| public static void closeLoggingExceptions(Closeable c, Logger logger) { |
| close(c, logger); |
| } |
| |
| private static void close(Closeable c, Logger logger) { |
| if (c != null) { |
| try { |
| c.close(); |
| } catch (IOException e) { |
| if (logger != null) { |
| logger.warn("IOException while closing Closeable", e); |
| } |
| } |
| } |
| } |
| |
| private Closeables() { |
| throw new UnsupportedOperationException("No instances"); |
| } |
| |
| } |