| /* |
| * 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.ignite.internal.processors.hadoop.impl.delegate; |
| |
| import java.io.IOException; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.hadoop.fs.CachingHadoopFileSystemFactory; |
| import org.apache.ignite.internal.processors.hadoop.impl.fs.HadoopFileSystemsUtils; |
| import org.apache.ignite.internal.processors.hadoop.impl.fs.HadoopLazyConcurrentMap; |
| |
| /** |
| * Caching Hadoop file system factory delegate. |
| */ |
| public class HadoopCachingFileSystemFactoryDelegate extends HadoopBasicFileSystemFactoryDelegate { |
| /** Per-user file system cache. */ |
| private final HadoopLazyConcurrentMap<String, FileSystem> cache = new HadoopLazyConcurrentMap<>( |
| new HadoopLazyConcurrentMap.ValueFactory<String, FileSystem>() { |
| @Override public FileSystem createValue(String key) throws IOException { |
| return HadoopCachingFileSystemFactoryDelegate.super.getWithMappedName(key); |
| } |
| } |
| ); |
| |
| /** |
| * Constructor. |
| * |
| * @param proxy Proxy. |
| */ |
| public HadoopCachingFileSystemFactoryDelegate(CachingHadoopFileSystemFactory proxy) { |
| super(proxy); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public FileSystem getWithMappedName(String name) throws IOException { |
| return cache.getOrCreate(name); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void start() throws IgniteException { |
| super.start(); |
| |
| // Disable caching. |
| cfg.setBoolean(HadoopFileSystemsUtils.disableFsCachePropertyName(fullUri.getScheme()), true); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void stop() throws IgniteException { |
| super.stop(); |
| |
| try { |
| cache.close(); |
| } |
| catch (IgniteCheckedException ice) { |
| throw new IgniteException(ice); |
| } |
| } |
| } |