| /* |
| * 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.igfs.client; |
| |
| import java.util.concurrent.Callable; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.binary.BinaryObjectException; |
| import org.apache.ignite.binary.BinaryRawReader; |
| import org.apache.ignite.binary.BinaryRawWriter; |
| import org.apache.ignite.binary.BinaryReader; |
| import org.apache.ignite.binary.BinaryWriter; |
| import org.apache.ignite.binary.Binarylizable; |
| import org.apache.ignite.igfs.IgfsPath; |
| import org.apache.ignite.igfs.IgfsUserContext; |
| import org.apache.ignite.internal.processors.igfs.IgfsContext; |
| import org.apache.ignite.internal.processors.igfs.IgfsEx; |
| import org.apache.ignite.internal.processors.igfs.IgfsUtils; |
| import org.apache.ignite.lang.IgniteCallable; |
| import org.apache.ignite.resources.IgniteInstanceResource; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Abstract callable for IGFS tasks initiated on client node and passed to data node. |
| */ |
| public abstract class IgfsClientAbstractCallable<T> implements IgniteCallable<T>, Binarylizable { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** IGFS name. */ |
| protected String igfsName; |
| |
| /** Path for operation. */ |
| protected IgfsPath path; |
| |
| /** User name. */ |
| protected String user; |
| |
| /** Injected instance. */ |
| @SuppressWarnings("UnusedDeclaration") |
| @IgniteInstanceResource |
| private transient Ignite ignite; |
| |
| /** |
| * Default constructor. |
| */ |
| protected IgfsClientAbstractCallable() { |
| // No-op. |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param igfsName IGFS name. |
| * @param user IGFS user name. |
| * @param path Path. |
| */ |
| protected IgfsClientAbstractCallable(@Nullable String igfsName, @Nullable String user, @Nullable IgfsPath path) { |
| this.igfsName = igfsName; |
| this.path = path; |
| this.user = user; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public final T call() throws Exception { |
| assert ignite != null; |
| |
| final IgfsEx igfs = (IgfsEx)ignite.fileSystem(igfsName); |
| |
| if (user != null) { |
| return IgfsUserContext.doAs(user, new Callable<T>() { |
| @Override public T call() throws Exception { |
| return call0(igfs.context()); |
| } |
| }); |
| } else |
| return call0(igfs.context()); |
| } |
| |
| /** |
| * Execute task. |
| * |
| * @param ctx IGFS ocntext. |
| * @return Result. |
| * @throws Exception If failed. |
| */ |
| protected abstract T call0(IgfsContext ctx) throws Exception; |
| |
| /** {@inheritDoc} */ |
| @Override public final void writeBinary(BinaryWriter writer) throws BinaryObjectException { |
| BinaryRawWriter rawWriter = writer.rawWriter(); |
| |
| rawWriter.writeString(igfsName); |
| rawWriter.writeString(user); |
| IgfsUtils.writePath(rawWriter, path); |
| |
| writeBinary0(rawWriter); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public final void readBinary(BinaryReader reader) throws BinaryObjectException { |
| BinaryRawReader rawReader = reader.rawReader(); |
| |
| igfsName = rawReader.readString(); |
| user = rawReader.readString(); |
| path = IgfsUtils.readPath(rawReader); |
| |
| readBinary0(rawReader); |
| } |
| |
| /** |
| * Write binary. |
| * |
| * @param rawWriter Raw writer. |
| */ |
| protected void writeBinary0(BinaryRawWriter rawWriter) { |
| // No-op. |
| } |
| |
| /** |
| * Read binary. |
| * |
| * @param rawReader Raw reader. |
| */ |
| protected void readBinary0(BinaryRawReader rawReader) { |
| // No-op. |
| } |
| } |